Google Git Google Git
Sign in
skia/skia/bed8a46721678d3ca2a0b7a79d009fd4fc85e9fa/./src/gpu/ganesh/gl/GrGLGpu.cpp
blob: d06e53a95f52f564742537df41d1a0a6fc8d8531 [file]
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/ganesh/gl/GrGLGpu.h"
#include "include/core/SkAlphaType.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkData.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTextureCompressionType.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GpuTypes.h"
#include "include/gpu/ganesh/GrBackendSurface.h"
#include "include/gpu/ganesh/GrContextOptions.h"
#include "include/gpu/ganesh/GrDirectContext.h"
#include "include/gpu/ganesh/GrDriverBugWorkarounds.h"
#include "include/gpu/ganesh/GrTypes.h"
#include "include/gpu/ganesh/gl/GrGLConfig.h"
#include "include/private/SkFloatingPoint.h"
#include "include/private/SkMath.h"
#include "include/private/SkTemplates.h"
#include "include/private/SkTo.h"
#include "src/core/SkCompressedDataUtils.h"
#include "src/core/SkLRUCache.h"
#include "src/core/SkMipmap.h"
#include "src/core/SkSLTypeShared.h"
#include "src/core/SkScopeExit.h"
#include "src/core/SkTraceEvent.h"
#include "src/gpu/RefCntedCallback.h"
#include "src/gpu/SkRenderEngineAbortf.h"
#include "src/gpu/Swizzle.h"
#include "src/gpu/ganesh/GrAttachment.h"
#include "src/gpu/ganesh/GrBackendSurfacePriv.h"
#include "src/gpu/ganesh/GrBackendUtils.h"
#include "src/gpu/ganesh/GrBuffer.h"
#include "src/gpu/ganesh/GrDataUtils.h"
#include "src/gpu/ganesh/GrDirectContextPriv.h"
#include "src/gpu/ganesh/GrGpuBuffer.h"
#include "src/gpu/ganesh/GrImageInfo.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/GrProgramInfo.h"
#include "src/gpu/ganesh/GrRenderTarget.h"
#include "src/gpu/ganesh/GrRenderTargetProxy.h"
#include "src/gpu/ganesh/GrSemaphore.h"
#include "src/gpu/ganesh/GrShaderCaps.h"
#include "src/gpu/ganesh/GrShaderVar.h"
#include "src/gpu/ganesh/GrStagingBufferManager.h"
#include "src/gpu/ganesh/GrSurface.h"
#include "src/gpu/ganesh/GrSurfaceProxy.h"
#include "src/gpu/ganesh/GrTexture.h"
#include "src/gpu/ganesh/GrUtil.h"
#include "src/gpu/ganesh/GrWindowRectangles.h"
#include "src/gpu/ganesh/gl/GrGLAttachment.h"
#include "src/gpu/ganesh/gl/GrGLBackendSurfacePriv.h"
#include "src/gpu/ganesh/gl/GrGLBuffer.h"
#include "src/gpu/ganesh/gl/GrGLOpsRenderPass.h"
#include "src/gpu/ganesh/gl/GrGLProgram.h"
#include "src/gpu/ganesh/gl/GrGLSemaphore.h"
#include "src/gpu/ganesh/gl/GrGLTextureRenderTarget.h"
#include "src/gpu/ganesh/gl/builders/GrGLShaderStringBuilder.h"
#include "src/sksl/SkSLProgramKind.h"
#include "src/sksl/SkSLProgramSettings.h"
#include "src/sksl/codegen/SkSLNativeShader.h"
#include "src/sksl/ir/SkSLProgram.h"
#include <algorithm>
#include <cmath>
#include <functional>
#include <memory>
#include <string>
#include <utility>
#if defined(__EMSCRIPTEN__)
#include <emscripten/version.h>
#endif
namespace skgpu { class MutableTextureState; }
using namespace skia_private;
#define GL_CALL(X) GR_GL_CALL(this->glInterface(), X)
#define GL_CALL_RET(RET, X) GR_GL_CALL_RET(this->glInterface(), RET, X)
#define GL_ALLOC_CALL(call) \
[&] { \
if (this->glCaps().skipErrorChecks()) { \
GR_GL_CALL(this->glInterface(), call); \
return static_cast<GrGLenum>(GR_GL_NO_ERROR); \
} else { \
this->clearErrorsAndCheckForOOM(); \
GR_GL_CALL_NOERRCHECK(this->glInterface(), call); \
return this->getErrorAndCheckForOOM(); \
} \
}()
//#define USE_NSIGHT
///////////////////////////////////////////////////////////////////////////////
static const GrGLenum gXfermodeEquation2Blend[] = {
// Basic OpenGL blend equations.
GR_GL_FUNC_ADD,
GR_GL_FUNC_SUBTRACT,
GR_GL_FUNC_REVERSE_SUBTRACT,
// GL_KHR_blend_equation_advanced.
GR_GL_SCREEN,
GR_GL_OVERLAY,
GR_GL_DARKEN,
GR_GL_LIGHTEN,
GR_GL_COLORDODGE,
GR_GL_COLORBURN,
GR_GL_HARDLIGHT,
GR_GL_SOFTLIGHT,
GR_GL_DIFFERENCE,
GR_GL_EXCLUSION,
GR_GL_MULTIPLY,
GR_GL_HSL_HUE,
GR_GL_HSL_SATURATION,
GR_GL_HSL_COLOR,
GR_GL_HSL_LUMINOSITY,
// Illegal... needs to map to something.
GR_GL_FUNC_ADD,
};
static_assert(0 == (int)skgpu::BlendEquation::kAdd);
static_assert(1 == (int)skgpu::BlendEquation::kSubtract);
static_assert(2 == (int)skgpu::BlendEquation::kReverseSubtract);
static_assert(3 == (int)skgpu::BlendEquation::kScreen);
static_assert(4 == (int)skgpu::BlendEquation::kOverlay);
static_assert(5 == (int)skgpu::BlendEquation::kDarken);
static_assert(6 == (int)skgpu::BlendEquation::kLighten);
static_assert(7 == (int)skgpu::BlendEquation::kColorDodge);
static_assert(8 == (int)skgpu::BlendEquation::kColorBurn);
static_assert(9 == (int)skgpu::BlendEquation::kHardLight);
static_assert(10 == (int)skgpu::BlendEquation::kSoftLight);
static_assert(11 == (int)skgpu::BlendEquation::kDifference);
static_assert(12 == (int)skgpu::BlendEquation::kExclusion);
static_assert(13 == (int)skgpu::BlendEquation::kMultiply);
static_assert(14 == (int)skgpu::BlendEquation::kHSLHue);
static_assert(15 == (int)skgpu::BlendEquation::kHSLSaturation);
static_assert(16 == (int)skgpu::BlendEquation::kHSLColor);
static_assert(17 == (int)skgpu::BlendEquation::kHSLLuminosity);
static_assert(std::size(gXfermodeEquation2Blend) == skgpu::kBlendEquationCnt);
static const GrGLenum gXfermodeCoeff2Blend[] = {
GR_GL_ZERO,
GR_GL_ONE,
GR_GL_SRC_COLOR,
GR_GL_ONE_MINUS_SRC_COLOR,
GR_GL_DST_COLOR,
GR_GL_ONE_MINUS_DST_COLOR,
GR_GL_SRC_ALPHA,
GR_GL_ONE_MINUS_SRC_ALPHA,
GR_GL_DST_ALPHA,
GR_GL_ONE_MINUS_DST_ALPHA,
GR_GL_CONSTANT_COLOR,
GR_GL_ONE_MINUS_CONSTANT_COLOR,
// extended blend coeffs
GR_GL_SRC1_COLOR,
GR_GL_ONE_MINUS_SRC1_COLOR,
GR_GL_SRC1_ALPHA,
GR_GL_ONE_MINUS_SRC1_ALPHA,
// Illegal... needs to map to something.
GR_GL_ZERO,
};
//////////////////////////////////////////////////////////////////////////////
static int gl_target_to_binding_index(GrGLenum target) {
switch (target) {
case GR_GL_TEXTURE_2D:
return 0;
case GR_GL_TEXTURE_RECTANGLE:
return 1;
case GR_GL_TEXTURE_EXTERNAL:
return 2;
}
SK_ABORT("Unexpected GL texture target.");
}
GrGpuResource::UniqueID GrGLGpu::TextureUnitBindings::boundID(GrGLenum target) const {
return fTargetBindings[gl_target_to_binding_index(target)].fBoundResourceID;
}
bool GrGLGpu::TextureUnitBindings::hasBeenModified(GrGLenum target) const {
return fTargetBindings[gl_target_to_binding_index(target)].fHasBeenModified;
}
void GrGLGpu::TextureUnitBindings::setBoundID(GrGLenum target, GrGpuResource::UniqueID resourceID) {
int targetIndex = gl_target_to_binding_index(target);
fTargetBindings[targetIndex].fBoundResourceID = resourceID;
fTargetBindings[targetIndex].fHasBeenModified = true;
}
void GrGLGpu::TextureUnitBindings::invalidateForScratchUse(GrGLenum target) {
this->setBoundID(target, GrGpuResource::UniqueID());
}
void GrGLGpu::TextureUnitBindings::invalidateAllTargets(bool markUnmodified) {
for (auto& targetBinding : fTargetBindings) {
targetBinding.fBoundResourceID.makeInvalid();
if (markUnmodified) {
targetBinding.fHasBeenModified = false;
}
}
}
//////////////////////////////////////////////////////////////////////////////
static GrGLenum filter_to_gl_mag_filter(GrSamplerState::Filter filter) {
switch (filter) {
case GrSamplerState::Filter::kNearest: return GR_GL_NEAREST;
case GrSamplerState::Filter::kLinear: return GR_GL_LINEAR;
}
SkUNREACHABLE;
}
static GrGLenum filter_to_gl_min_filter(GrSamplerState::Filter filter,
GrSamplerState::MipmapMode mm) {
switch (mm) {
case GrSamplerState::MipmapMode::kNone:
return filter_to_gl_mag_filter(filter);
case GrSamplerState::MipmapMode::kNearest:
switch (filter) {
case GrSamplerState::Filter::kNearest: return GR_GL_NEAREST_MIPMAP_NEAREST;
case GrSamplerState::Filter::kLinear: return GR_GL_LINEAR_MIPMAP_NEAREST;
}
SkUNREACHABLE;
case GrSamplerState::MipmapMode::kLinear:
switch (filter) {
case GrSamplerState::Filter::kNearest: return GR_GL_NEAREST_MIPMAP_LINEAR;
case GrSamplerState::Filter::kLinear: return GR_GL_LINEAR_MIPMAP_LINEAR;
}
SkUNREACHABLE;
}
SkUNREACHABLE;
}
static inline GrGLenum wrap_mode_to_gl_wrap(GrSamplerState::WrapMode wrapMode,
const GrCaps& caps) {
switch (wrapMode) {
case GrSamplerState::WrapMode::kClamp: return GR_GL_CLAMP_TO_EDGE;
case GrSamplerState::WrapMode::kRepeat: return GR_GL_REPEAT;
case GrSamplerState::WrapMode::kMirrorRepeat: return GR_GL_MIRRORED_REPEAT;
case GrSamplerState::WrapMode::kClampToBorder:
// May not be supported but should have been caught earlier
SkASSERT(caps.clampToBorderSupport());
return GR_GL_CLAMP_TO_BORDER;
}
SkUNREACHABLE;
}
///////////////////////////////////////////////////////////////////////////////
static void cleanup_program(GrGLGpu* gpu,
GrGLuint* programID,
GrGLuint* vshader,
GrGLuint* fshader) {
const GrGLInterface* gli = gpu->glInterface();
if (programID) {
GR_GL_CALL(gli, DeleteProgram(*programID));
*programID = 0;
}
if (vshader) {
GR_GL_CALL(gli, DeleteShader(*vshader));
*vshader = 0;
}
if (fshader) {
GR_GL_CALL(gli, DeleteShader(*fshader));
*fshader = 0;
}
}
///////////////////////////////////////////////////////////////////////////////
class GrGLGpu::SamplerObjectCache {
public:
SamplerObjectCache(GrGLGpu* gpu) : fGpu(gpu) {
fNumTextureUnits = fGpu->glCaps().shaderCaps()->fMaxFragmentSamplers;
fTextureUnitStates = std::make_unique<UnitState[]>(fNumTextureUnits);
}
~SamplerObjectCache() {
if (!fNumTextureUnits) {
// We've already been abandoned.
return;
}
}
void bindSampler(int unitIdx, GrSamplerState state) {
if (unitIdx >= fNumTextureUnits) {
return;
}
// In GL the max aniso value is specified in addition to min/mag filters and the driver
// is encouraged to consider the other filter settings when doing aniso.
uint32_t key = state.asKey(/*anisoIsOrthogonal=*/true);
const Sampler* sampler = fSamplers.find(key);
if (!sampler) {
GrGLuint s;
GR_GL_CALL(fGpu->glInterface(), GenSamplers(1, &s));
if (!s) {
return;
}
sampler = fSamplers.insert(key, Sampler(s, fGpu->glInterface()));
GrGLenum minFilter = filter_to_gl_min_filter(state.filter(), state.mipmapMode());
GrGLenum magFilter = filter_to_gl_mag_filter(state.filter());
GrGLenum wrapX = wrap_mode_to_gl_wrap(state.wrapModeX(), fGpu->glCaps());
GrGLenum wrapY = wrap_mode_to_gl_wrap(state.wrapModeY(), fGpu->glCaps());
GR_GL_CALL(fGpu->glInterface(),
SamplerParameteri(s, GR_GL_TEXTURE_MIN_FILTER, minFilter));
GR_GL_CALL(fGpu->glInterface(),
SamplerParameteri(s, GR_GL_TEXTURE_MAG_FILTER, magFilter));
GR_GL_CALL(fGpu->glInterface(), SamplerParameteri(s, GR_GL_TEXTURE_WRAP_S, wrapX));
GR_GL_CALL(fGpu->glInterface(), SamplerParameteri(s, GR_GL_TEXTURE_WRAP_T, wrapY));
SkASSERT(fGpu->glCaps().anisoSupport() || !state.isAniso());
if (fGpu->glCaps().anisoSupport()) {
float maxAniso = std::min(static_cast<GrGLfloat>(state.maxAniso()),
fGpu->glCaps().maxTextureMaxAnisotropy());
GR_GL_CALL(fGpu->glInterface(), SamplerParameterf(s,
GR_GL_TEXTURE_MAX_ANISOTROPY,
maxAniso));
}
}
SkASSERT(sampler && sampler->id());
if (!fTextureUnitStates[unitIdx].fKnown ||
fTextureUnitStates[unitIdx].fSamplerIDIfKnown != sampler->id()) {
GR_GL_CALL(fGpu->glInterface(), BindSampler(unitIdx, sampler->id()));
fTextureUnitStates[unitIdx].fSamplerIDIfKnown = sampler->id();
fTextureUnitStates[unitIdx].fKnown = true;
}
}
void unbindSampler(int unitIdx) {
if (!fTextureUnitStates[unitIdx].fKnown ||
fTextureUnitStates[unitIdx].fSamplerIDIfKnown != 0) {
GR_GL_CALL(fGpu->glInterface(), BindSampler(unitIdx, 0));
fTextureUnitStates[unitIdx].fSamplerIDIfKnown = 0;
fTextureUnitStates[unitIdx].fKnown = true;
}
}
void invalidateBindings() {
std::fill_n(fTextureUnitStates.get(), fNumTextureUnits, UnitState{});
}
void abandon() {
fSamplers.foreach([](const uint32_t* key, Sampler* sampler) { sampler->abandon(); });
fTextureUnitStates.reset();
fNumTextureUnits = 0;
}
void release() {
if (!fNumTextureUnits) {
// We've already been abandoned.
return;
}
fSamplers.reset();
// Deleting a bound sampler implicitly binds sampler 0. We just invalidate all of our
// knowledge.
std::fill_n(fTextureUnitStates.get(), fNumTextureUnits, UnitState{});
}
private:
class Sampler {
public:
Sampler() = default;
Sampler(const Sampler&) = delete;
Sampler(Sampler&& that) {
fID = that.fID;
fInterface = that.fInterface;
that.fID = 0;
}
Sampler(GrGLuint id, const GrGLInterface* interface) : fID(id), fInterface(interface) {}
~Sampler() {
if (fID) {
GR_GL_CALL(fInterface, DeleteSamplers(1, &fID));
}
}
GrGLuint id() const { return fID; }
void abandon() { fID = 0; }
private:
GrGLuint fID = 0;
const GrGLInterface* fInterface = nullptr;
};
struct UnitState {
bool fKnown = false;
GrGLuint fSamplerIDIfKnown = 0;
};
static constexpr int kMaxSamplers = 32;
SkLRUCache<uint32_t, Sampler> fSamplers{kMaxSamplers};
std::unique_ptr<UnitState[]> fTextureUnitStates;
GrGLGpu* fGpu;
int fNumTextureUnits;
};
///////////////////////////////////////////////////////////////////////////////
std::unique_ptr<GrGpu> GrGLGpu::Make(sk_sp<const GrGLInterface> interface,
const GrContextOptions& options,
GrDirectContext* direct) {
#if !defined(SK_DISABLE_LEGACY_GL_MAKE_NATIVE_INTERFACE)
if (!interface) {
interface = GrGLMakeNativeInterface();
if (!interface) {
return nullptr;
}
}
#else
if (!interface) {
return nullptr;
}
#endif
#ifdef USE_NSIGHT
const_cast<GrContextOptions&>(options).fSuppressPathRendering = true;
#endif
auto glContext = GrGLContext::Make(std::move(interface), options);
if (!glContext) {
return nullptr;
}
return std::unique_ptr<GrGpu>(new GrGLGpu(std::move(glContext), direct));
}
GrGLGpu::GrGLGpu(std::unique_ptr<GrGLContext> ctx, GrDirectContext* dContext)
: GrGpu(dContext)
, fGLContext(std::move(ctx))
, fProgramCache(new ProgramCache(dContext->priv().options().fRuntimeProgramCacheSize))
, fHWProgramID(0)
, fTempSrcFBOID(0)
, fTempDstFBOID(0)
, fStencilClearFBOID(0)
, fFinishCallbacks(this) {
SkASSERT(fGLContext);
// Clear errors so we don't get confused whether we caused an error.
this->clearErrorsAndCheckForOOM();
// Toss out any pre-existing OOM that was hanging around before we got started.
this->checkAndResetOOMed();
this->initCaps(sk_ref_sp(fGLContext->caps()));
fHWTextureUnitBindings.reset(this->numTextureUnits());
this->hwBufferState(GrGpuBufferType::kVertex)->fGLTarget = GR_GL_ARRAY_BUFFER;
this->hwBufferState(GrGpuBufferType::kIndex)->fGLTarget = GR_GL_ELEMENT_ARRAY_BUFFER;
this->hwBufferState(GrGpuBufferType::kDrawIndirect)->fGLTarget = GR_GL_DRAW_INDIRECT_BUFFER;
if (GrGLCaps::TransferBufferType::kChromium == this->glCaps().transferBufferType()) {
this->hwBufferState(GrGpuBufferType::kXferCpuToGpu)->fGLTarget =
GR_GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM;
this->hwBufferState(GrGpuBufferType::kXferGpuToCpu)->fGLTarget =
GR_GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM;
} else {
this->hwBufferState(GrGpuBufferType::kXferCpuToGpu)->fGLTarget = GR_GL_PIXEL_UNPACK_BUFFER;
this->hwBufferState(GrGpuBufferType::kXferGpuToCpu)->fGLTarget = GR_GL_PIXEL_PACK_BUFFER;
}
for (int i = 0; i < kGrGpuBufferTypeCount; ++i) {
fHWBufferState[i].invalidate();
}
if (this->glCaps().useSamplerObjects()) {
fSamplerObjectCache = std::make_unique<SamplerObjectCache>(this);
}
}
GrGLGpu::~GrGLGpu() {
// Ensure any GrGpuResource objects get deleted first, since they may require a working GrGLGpu
// to release the resources held by the objects themselves.
fCopyProgramArrayBuffer.reset();
fMipmapProgramArrayBuffer.reset();
if (fProgramCache) {
fProgramCache->reset();
}
fHWProgram.reset();
if (fHWProgramID) {
// detach the current program so there is no confusion on OpenGL's part
// that we want it to be deleted
GL_CALL(UseProgram(0));
}
if (fTempSrcFBOID) {
this->deleteFramebuffer(fTempSrcFBOID);
}
if (fTempDstFBOID) {
this->deleteFramebuffer(fTempDstFBOID);
}
if (fStencilClearFBOID) {
this->deleteFramebuffer(fStencilClearFBOID);
}
for (size_t i = 0; i < std::size(fCopyPrograms); ++i) {
if (0 != fCopyPrograms[i].fProgram) {
GL_CALL(DeleteProgram(fCopyPrograms[i].fProgram));
}
}
for (size_t i = 0; i < std::size(fMipmapPrograms); ++i) {
if (0 != fMipmapPrograms[i].fProgram) {
GL_CALL(DeleteProgram(fMipmapPrograms[i].fProgram));
}
}
fSamplerObjectCache.reset();
fFinishCallbacks.callAll(true);
}
void GrGLGpu::disconnect(DisconnectType type) {
INHERITED::disconnect(type);
if (DisconnectType::kCleanup == type) {
if (fHWProgramID) {
GL_CALL(UseProgram(0));
}
if (fTempSrcFBOID) {
this->deleteFramebuffer(fTempSrcFBOID);
}
if (fTempDstFBOID) {
this->deleteFramebuffer(fTempDstFBOID);
}
if (fStencilClearFBOID) {
this->deleteFramebuffer(fStencilClearFBOID);
}
for (size_t i = 0; i < std::size(fCopyPrograms); ++i) {
if (fCopyPrograms[i].fProgram) {
GL_CALL(DeleteProgram(fCopyPrograms[i].fProgram));
}
}
for (size_t i = 0; i < std::size(fMipmapPrograms); ++i) {
if (fMipmapPrograms[i].fProgram) {
GL_CALL(DeleteProgram(fMipmapPrograms[i].fProgram));
}
}
if (fSamplerObjectCache) {
fSamplerObjectCache->release();
}
} else {
if (fProgramCache) {
fProgramCache->abandon();
}
if (fSamplerObjectCache) {
fSamplerObjectCache->abandon();
}
}
fHWProgram.reset();
fProgramCache->reset();
fProgramCache.reset();
fHWProgramID = 0;
fTempSrcFBOID = 0;
fTempDstFBOID = 0;
fStencilClearFBOID = 0;
fCopyProgramArrayBuffer.reset();
for (size_t i = 0; i < std::size(fCopyPrograms); ++i) {
fCopyPrograms[i].fProgram = 0;
}
fMipmapProgramArrayBuffer.reset();
for (size_t i = 0; i < std::size(fMipmapPrograms); ++i) {
fMipmapPrograms[i].fProgram = 0;
}
fFinishCallbacks.callAll(/* doDelete */ DisconnectType::kCleanup == type);
}
GrThreadSafePipelineBuilder* GrGLGpu::pipelineBuilder() {
return fProgramCache.get();
}
sk_sp<GrThreadSafePipelineBuilder> GrGLGpu::refPipelineBuilder() {
return fProgramCache;
}
///////////////////////////////////////////////////////////////////////////////
void GrGLGpu::onResetContext(uint32_t resetBits) {
if (resetBits & kMisc_GrGLBackendState) {
// we don't use the zb at all
GL_CALL(Disable(GR_GL_DEPTH_TEST));
GL_CALL(DepthMask(GR_GL_FALSE));
// We don't use face culling.
GL_CALL(Disable(GR_GL_CULL_FACE));
// We do use separate stencil. Our algorithms don't care which face is front vs. back so
// just set this to the default for self-consistency.
GL_CALL(FrontFace(GR_GL_CCW));
this->hwBufferState(GrGpuBufferType::kXferCpuToGpu)->invalidate();
this->hwBufferState(GrGpuBufferType::kXferGpuToCpu)->invalidate();
if (GR_IS_GR_GL(this->glStandard())) {
#ifndef USE_NSIGHT
// Desktop-only state that we never change
if (!this->glCaps().isCoreProfile()) {
GL_CALL(Disable(GR_GL_POINT_SMOOTH));
GL_CALL(Disable(GR_GL_LINE_SMOOTH));
GL_CALL(Disable(GR_GL_POLYGON_SMOOTH));
GL_CALL(Disable(GR_GL_POLYGON_STIPPLE));
GL_CALL(Disable(GR_GL_COLOR_LOGIC_OP));
GL_CALL(Disable(GR_GL_INDEX_LOGIC_OP));
}
// The windows NVIDIA driver has GL_ARB_imaging in the extension string when using a
// core profile. This seems like a bug since the core spec removes any mention of
// GL_ARB_imaging.
if (this->glCaps().imagingSupport() && !this->glCaps().isCoreProfile()) {
GL_CALL(Disable(GR_GL_COLOR_TABLE));
}
GL_CALL(Disable(GR_GL_POLYGON_OFFSET_FILL));
fHWWireframeEnabled = kUnknown_TriState;
#endif
// Since ES doesn't support glPointSize at all we always use the VS to
// set the point size
GL_CALL(Enable(GR_GL_VERTEX_PROGRAM_POINT_SIZE));
}
if (GR_IS_GR_GL_ES(this->glStandard()) &&
this->glCaps().fbFetchRequiresEnablePerSample()) {
// The arm extension requires specifically enabling MSAA fetching per sample.
// On some devices this may have a perf hit. Also multiple render targets are disabled
GL_CALL(Enable(GR_GL_FETCH_PER_SAMPLE));
}
fHWWriteToColor = kUnknown_TriState;
// we only ever use lines in hairline mode
GL_CALL(LineWidth(1));
GL_CALL(Disable(GR_GL_DITHER));
fHWClearColor[0] = fHWClearColor[1] = fHWClearColor[2] = fHWClearColor[3] = SK_FloatNaN;
}
if (resetBits & kMSAAEnable_GrGLBackendState) {
if (this->glCaps().clientCanDisableMultisample()) {
// Restore GL_MULTISAMPLE to its initial state. It being enabled has no effect on draws
// to non-MSAA targets.
GL_CALL(Enable(GR_GL_MULTISAMPLE));
}
fHWConservativeRasterEnabled = kUnknown_TriState;
}
fHWActiveTextureUnitIdx = -1; // invalid
fLastPrimitiveType = static_cast<GrPrimitiveType>(-1);
if (resetBits & kTextureBinding_GrGLBackendState) {
for (int s = 0; s < this->numTextureUnits(); ++s) {
fHWTextureUnitBindings[s].invalidateAllTargets(false);
}
if (fSamplerObjectCache) {
fSamplerObjectCache->invalidateBindings();
}
}
if (resetBits & kBlend_GrGLBackendState) {
fHWBlendState.invalidate();
}
if (resetBits & kView_GrGLBackendState) {
fHWScissorSettings.invalidate();
fHWWindowRectsState.invalidate();
fHWViewport.invalidate();
}
if (resetBits & kStencil_GrGLBackendState) {
fHWStencilSettings.invalidate();
fHWStencilTestEnabled = kUnknown_TriState;
}
// Vertex
if (resetBits & kVertex_GrGLBackendState) {
fHWVertexArrayState.invalidate();
this->hwBufferState(GrGpuBufferType::kVertex)->invalidate();
this->hwBufferState(GrGpuBufferType::kIndex)->invalidate();
this->hwBufferState(GrGpuBufferType::kDrawIndirect)->invalidate();
}
if (resetBits & kRenderTarget_GrGLBackendState) {
fHWBoundRenderTargetUniqueID.makeInvalid();
fHWSRGBFramebuffer = kUnknown_TriState;
fBoundDrawFramebuffer = 0;
}
// we assume these values
if (resetBits & kPixelStore_GrGLBackendState) {
if (this->caps()->writePixelsRowBytesSupport() ||
this->caps()->transferPixelsToRowBytesSupport()) {
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
}
if (this->glCaps().readPixelsRowBytesSupport()) {
GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, 0));
}
if (this->glCaps().packFlipYSupport()) {
GL_CALL(PixelStorei(GR_GL_PACK_REVERSE_ROW_ORDER, GR_GL_FALSE));
}
}
if (resetBits & kProgram_GrGLBackendState) {
fHWProgramID = 0;
fHWProgram.reset();
}
++fResetTimestampForTextureParameters;
}
static bool check_backend_texture(const GrBackendTexture& backendTex,
const GrGLCaps& caps,
GrGLTexture::Desc* desc,
bool skipRectTexSupportCheck = false) {
GrGLTextureInfo info;
if (!GrBackendTextures::GetGLTextureInfo(backendTex, &info) || !info.fID || !info.fFormat) {
return false;
}
if (info.fProtected == skgpu::Protected::kYes && !caps.supportsProtectedContent()) {
return false;
}
desc->fSize = {backendTex.width(), backendTex.height()};
desc->fTarget = info.fTarget;
desc->fID = info.fID;
desc->fFormat = GrGLFormatFromGLEnum(info.fFormat);
desc->fIsProtected = skgpu::Protected(info.fProtected == skgpu::Protected::kYes ||
caps.strictProtectedness());
if (desc->fFormat == GrGLFormat::kUnknown) {
return false;
}
if (GR_GL_TEXTURE_EXTERNAL == desc->fTarget) {
if (!caps.shaderCaps()->fExternalTextureSupport) {
return false;
}
} else if (GR_GL_TEXTURE_RECTANGLE == desc->fTarget) {
if (!caps.rectangleTextureSupport() && !skipRectTexSupportCheck) {
return false;
}
} else if (GR_GL_TEXTURE_2D != desc->fTarget) {
return false;
}
return true;
}
static sk_sp<GrGLTextureParameters> get_gl_texture_params(const GrBackendTexture& backendTex) {
const GrBackendTextureData* btd = GrBackendSurfacePriv::GetBackendData(backendTex);
auto glTextureData = static_cast<const GrGLBackendTextureData*>(btd);
SkASSERT(glTextureData);
return glTextureData->info().refParameters();
}
sk_sp<GrTexture> GrGLGpu::onWrapBackendTexture(const GrBackendTexture& backendTex,
GrWrapOwnership ownership,
GrWrapCacheable cacheable,
GrIOType ioType) {
GrGLTexture::Desc desc;
if (!check_backend_texture(backendTex, this->glCaps(), &desc)) {
return nullptr;
}
if (kBorrow_GrWrapOwnership == ownership) {
desc.fOwnership = GrBackendObjectOwnership::kBorrowed;
} else {
desc.fOwnership = GrBackendObjectOwnership::kOwned;
}
GrMipmapStatus mipmapStatus = backendTex.hasMipmaps() ? GrMipmapStatus::kValid
: GrMipmapStatus::kNotAllocated;
auto texture = GrGLTexture::MakeWrapped(this,
mipmapStatus,
desc,
get_gl_texture_params(backendTex),
cacheable,
ioType,
backendTex.getLabel());
if (this->glCaps().isFormatRenderable(backendTex.getBackendFormat(), 1)) {
// Pessimistically assume this external texture may have been bound to a FBO.
texture->baseLevelWasBoundToFBO();
}
return texture;
}
static bool check_compressed_backend_texture(const GrBackendTexture& backendTex,
const GrGLCaps& caps, GrGLTexture::Desc* desc,
bool skipRectTexSupportCheck = false) {
GrGLTextureInfo info;
if (!GrBackendTextures::GetGLTextureInfo(backendTex, &info) || !info.fID || !info.fFormat) {
return false;
}
if (info.fProtected == skgpu::Protected::kYes && !caps.supportsProtectedContent()) {
return false;
}
desc->fSize = {backendTex.width(), backendTex.height()};
desc->fTarget = info.fTarget;
desc->fID = info.fID;
desc->fFormat = GrGLFormatFromGLEnum(info.fFormat);
desc->fIsProtected = skgpu::Protected(info.fProtected == skgpu::Protected::kYes ||
caps.strictProtectedness());
if (desc->fFormat == GrGLFormat::kUnknown) {
return false;
}
if (GR_GL_TEXTURE_2D != desc->fTarget) {
return false;
}
return true;
}
sk_sp<GrTexture> GrGLGpu::onWrapCompressedBackendTexture(const GrBackendTexture& backendTex,
GrWrapOwnership ownership,
GrWrapCacheable cacheable) {
GrGLTexture::Desc desc;
if (!check_compressed_backend_texture(backendTex, this->glCaps(), &desc)) {
return nullptr;
}
if (kBorrow_GrWrapOwnership == ownership) {
desc.fOwnership = GrBackendObjectOwnership::kBorrowed;
} else {
desc.fOwnership = GrBackendObjectOwnership::kOwned;
}
GrMipmapStatus mipmapStatus = backendTex.hasMipmaps() ? GrMipmapStatus::kValid
: GrMipmapStatus::kNotAllocated;
return GrGLTexture::MakeWrapped(this,
mipmapStatus,
desc,
get_gl_texture_params(backendTex),
cacheable,
kRead_GrIOType,
backendTex.getLabel());
}
sk_sp<GrTexture> GrGLGpu::onWrapRenderableBackendTexture(const GrBackendTexture& backendTex,
int sampleCnt,
GrWrapOwnership ownership,
GrWrapCacheable cacheable) {
const GrGLCaps& caps = this->glCaps();
GrGLTexture::Desc desc;
if (!check_backend_texture(backendTex, this->glCaps(), &desc)) {
return nullptr;
}
SkASSERT(caps.isFormatRenderable(desc.fFormat, sampleCnt));
SkASSERT(caps.isFormatTexturable(desc.fFormat));
// We don't support rendering to a EXTERNAL texture.
if (GR_GL_TEXTURE_EXTERNAL == desc.fTarget) {
return nullptr;
}
if (kBorrow_GrWrapOwnership == ownership) {
desc.fOwnership = GrBackendObjectOwnership::kBorrowed;
} else {
desc.fOwnership = GrBackendObjectOwnership::kOwned;
}
sampleCnt = caps.getRenderTargetSampleCount(sampleCnt, desc.fFormat);
SkASSERT(sampleCnt);
GrGLRenderTarget::IDs rtIDs;
if (!this->createRenderTargetObjects(desc, sampleCnt, &rtIDs)) {
return nullptr;
}
GrMipmapStatus mipmapStatus = backendTex.hasMipmaps() ? GrMipmapStatus::kDirty
: GrMipmapStatus::kNotAllocated;
sk_sp<GrGLTextureRenderTarget> texRT(
GrGLTextureRenderTarget::MakeWrapped(this,
sampleCnt,
desc,
get_gl_texture_params(backendTex),
rtIDs,
cacheable,
mipmapStatus,
backendTex.getLabel()));
texRT->baseLevelWasBoundToFBO();
return texRT;
}
sk_sp<GrRenderTarget> GrGLGpu::onWrapBackendRenderTarget(const GrBackendRenderTarget& backendRT) {
GrGLFramebufferInfo info;
if (!GrBackendRenderTargets::GetGLFramebufferInfo(backendRT, &info)) {
return nullptr;
}
if (backendRT.isProtected() && !this->glCaps().supportsProtectedContent()) {
return nullptr;
}
const auto format = GrBackendFormats::AsGLFormat(backendRT.getBackendFormat());
if (!this->glCaps().isFormatRenderable(format, backendRT.sampleCnt())) {
return nullptr;
}
int sampleCount = this->glCaps().getRenderTargetSampleCount(backendRT.sampleCnt(), format);
GrGLRenderTarget::IDs rtIDs;
if (sampleCount <= 1) {
rtIDs.fSingleSampleFBOID = info.fFBOID;
rtIDs.fMultisampleFBOID = GrGLRenderTarget::kUnresolvableFBOID;
} else {
rtIDs.fSingleSampleFBOID = GrGLRenderTarget::kUnresolvableFBOID;
rtIDs.fMultisampleFBOID = info.fFBOID;
}
rtIDs.fMSColorRenderbufferID = 0;
rtIDs.fRTFBOOwnership = GrBackendObjectOwnership::kBorrowed;
rtIDs.fTotalMemorySamplesPerPixel = sampleCount;
return GrGLRenderTarget::MakeWrapped(this,
backendRT.dimensions(),
format,
sampleCount,
rtIDs,
backendRT.stencilBits(),
skgpu::Protected(backendRT.isProtected()),
/*label=*/"GLGpu_WrapBackendRenderTarget");
}
static bool check_write_and_transfer_input(GrGLTexture* glTex) {
if (!glTex) {
return false;
}
// Write or transfer of pixels is not implemented for TEXTURE_EXTERNAL textures
if (GR_GL_TEXTURE_EXTERNAL == glTex->target()) {
return false;
}
return true;
}
bool GrGLGpu::onWritePixels(GrSurface* surface,
SkIRect rect,
GrColorType surfaceColorType,
GrColorType srcColorType,
const GrMipLevel texels[],
int mipLevelCount,
bool prepForTexSampling) {
auto glTex = static_cast<GrGLTexture*>(surface->asTexture());
if (!check_write_and_transfer_input(glTex)) {
return false;
}
this->bindTextureToScratchUnit(glTex->target(), glTex->textureID());
// If we have mips make sure the base/max levels cover the full range so that the uploads go to
// the right levels. We've found some Radeons require this.
if (mipLevelCount && this->glCaps().mipmapLevelControlSupport()) {
auto params = glTex->parameters();
GrGLTextureParameters::NonsamplerState nonsamplerState = params->nonsamplerState();
int maxLevel = glTex->maxMipmapLevel();
if (params->nonsamplerState().fBaseMipMapLevel != 0) {
GL_CALL(TexParameteri(glTex->target(), GR_GL_TEXTURE_BASE_LEVEL, 0));
nonsamplerState.fBaseMipMapLevel = 0;
}
if (params->nonsamplerState().fMaxMipmapLevel != maxLevel) {
GL_CALL(TexParameteri(glTex->target(), GR_GL_TEXTURE_MAX_LEVEL, maxLevel));
nonsamplerState.fBaseMipMapLevel = maxLevel;
}
params->set(nullptr, nonsamplerState, fResetTimestampForTextureParameters);
}
if (this->glCaps().flushBeforeWritePixels()) {
GL_CALL(Flush());
}
SkASSERT(!GrGLFormatIsCompressed(glTex->format()));
return this->uploadColorTypeTexData(glTex->format(),
surfaceColorType,
glTex->dimensions(),
glTex->target(),
rect,
srcColorType,
texels,
mipLevelCount);
}
bool GrGLGpu::onTransferFromBufferToBuffer(sk_sp<GrGpuBuffer> src,
size_t srcOffset,
sk_sp<GrGpuBuffer> dst,
size_t dstOffset,
size_t size) {
SkASSERT(!src->isMapped());
SkASSERT(!dst->isMapped());
auto glSrc = static_cast<const GrGLBuffer*>(src.get());
auto glDst = static_cast<const GrGLBuffer*>(dst.get());
// If we refactored bindBuffer() to use something other than GrGpuBufferType to indicate the
// binding target then we could use the COPY_READ and COPY_WRITE targets here. But
// CopyBufferSubData is documented to work with all the targets so it's not clear it's worth it.
this->bindBuffer(GrGpuBufferType::kXferCpuToGpu, glSrc);
this->bindBuffer(GrGpuBufferType::kXferGpuToCpu, glDst);
GL_CALL(CopyBufferSubData(GR_GL_PIXEL_UNPACK_BUFFER,
GR_GL_PIXEL_PACK_BUFFER,
srcOffset,
dstOffset,
size));
return true;
}
bool GrGLGpu::onTransferPixelsTo(GrTexture* texture,
SkIRect rect,
GrColorType textureColorType,
GrColorType bufferColorType,
sk_sp<GrGpuBuffer> transferBuffer,
size_t offset,
size_t rowBytes) {
GrGLTexture* glTex = static_cast<GrGLTexture*>(texture);
// Can't transfer compressed data
SkASSERT(!GrGLFormatIsCompressed(glTex->format()));
if (!check_write_and_transfer_input(glTex)) {
return false;
}
static_assert(sizeof(int) == sizeof(int32_t), "");
this->bindTextureToScratchUnit(glTex->target(), glTex->textureID());
SkASSERT(!transferBuffer->isMapped());
SkASSERT(!transferBuffer->isCpuBuffer());
const GrGLBuffer* glBuffer = static_cast<const GrGLBuffer*>(transferBuffer.get());
this->bindBuffer(GrGpuBufferType::kXferCpuToGpu, glBuffer);
SkASSERT(SkIRect::MakeSize(texture->dimensions()).contains(rect));
size_t bpp = GrColorTypeBytesPerPixel(bufferColorType);
const size_t trimRowBytes = rect.width() * bpp;
const void* pixels = (void*)offset;
SkASSERT(glBuffer->size() >= offset + rowBytes*(rect.height() - 1) + trimRowBytes);
bool restoreGLRowLength = false;
if (trimRowBytes != rowBytes) {
// we should have checked for this support already
SkASSERT(this->glCaps().transferPixelsToRowBytesSupport());
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, rowBytes / bpp));
restoreGLRowLength = true;
}
GrGLFormat textureFormat = glTex->format();
// External format and type come from the upload data.
GrGLenum externalFormat = 0;
GrGLenum externalType = 0;
this->glCaps().getTexSubImageExternalFormatAndType(
textureFormat, textureColorType, bufferColorType, &externalFormat, &externalType);
if (!externalFormat || !externalType) {
return false;
}
GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, 1));
GL_CALL(TexSubImage2D(glTex->target(),
0,
rect.left(),
rect.top(),
rect.width(),
rect.height(),
externalFormat,
externalType,
pixels));
if (restoreGLRowLength) {
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
}
return true;
}
bool GrGLGpu::onTransferPixelsFrom(GrSurface* surface,
SkIRect rect,
GrColorType surfaceColorType,
GrColorType dstColorType,
sk_sp<GrGpuBuffer> transferBuffer,
size_t offset) {
auto* glBuffer = static_cast<GrGLBuffer*>(transferBuffer.get());
SkASSERT(glBuffer->size() >= offset + (rect.width() *
rect.height()*
GrColorTypeBytesPerPixel(dstColorType)));
this->bindBuffer(GrGpuBufferType::kXferGpuToCpu, glBuffer);
auto offsetAsPtr = reinterpret_cast<void*>(offset);
return this->readOrTransferPixelsFrom(surface,
rect,
surfaceColorType,
dstColorType,
offsetAsPtr,
rect.width());
}
void GrGLGpu::unbindXferBuffer(GrGpuBufferType type) {
if (this->glCaps().transferBufferType() != GrGLCaps::TransferBufferType::kARB_PBO &&
this->glCaps().transferBufferType() != GrGLCaps::TransferBufferType::kNV_PBO) {
return;
}
SkASSERT(type == GrGpuBufferType::kXferCpuToGpu || type == GrGpuBufferType::kXferGpuToCpu);
auto* xferBufferState = this->hwBufferState(type);
if (!xferBufferState->fBufferZeroKnownBound) {
GL_CALL(BindBuffer(xferBufferState->fGLTarget, 0));
xferBufferState->fBoundBufferUniqueID.makeInvalid();
xferBufferState->fBufferZeroKnownBound = true;
}
}
bool GrGLGpu::uploadColorTypeTexData(GrGLFormat textureFormat,
GrColorType textureColorType,
SkISize texDims,
GrGLenum target,
SkIRect dstRect,
GrColorType srcColorType,
const GrMipLevel texels[],
int mipLevelCount) {
// If we're uploading compressed data then we should be using uploadCompressedTexData
SkASSERT(!GrGLFormatIsCompressed(textureFormat));
SkASSERT(this->glCaps().isFormatTexturable(textureFormat));
size_t bpp = GrColorTypeBytesPerPixel(srcColorType);
// External format and type come from the upload data.
GrGLenum externalFormat;
GrGLenum externalType;
this->glCaps().getTexSubImageExternalFormatAndType(
textureFormat, textureColorType, srcColorType, &externalFormat, &externalType);
if (!externalFormat || !externalType) {
return false;
}
this->uploadTexData(texDims, target, dstRect, externalFormat, externalType, bpp, texels,
mipLevelCount);
return true;
}
bool GrGLGpu::uploadColorToTex(GrGLFormat textureFormat,
SkISize texDims,
GrGLenum target,
std::array<float, 4> color,
uint32_t levelMask) {
GrColorType colorType;
GrGLenum externalFormat, externalType;
this->glCaps().getTexSubImageDefaultFormatTypeAndColorType(textureFormat, &externalFormat,
&externalType, &colorType);
if (colorType == GrColorType::kUnknown) {
return false;
}
std::unique_ptr<char[]> pixelStorage;
size_t bpp = 0;
int numLevels = SkMipmap::ComputeLevelCount(texDims) + 1;
STArray<16, GrMipLevel> levels;
levels.resize(numLevels);
SkISize levelDims = texDims;
for (int i = 0; i < numLevels; ++i, levelDims = {std::max(levelDims.width() >> 1, 1),
std::max(levelDims.height() >> 1, 1)}) {
if (levelMask & (1 << i)) {
if (!pixelStorage) {
// Make one tight image at the first size and reuse it for smaller levels.
GrImageInfo ii(colorType, kUnpremul_SkAlphaType, nullptr, levelDims);
size_t rb = ii.minRowBytes();
pixelStorage.reset(new char[rb * levelDims.height()]);
if (!GrClearImage(ii, pixelStorage.get(), ii.minRowBytes(), color)) {
return false;
}
bpp = ii.bpp();
}
levels[i] = {pixelStorage.get(), levelDims.width()*bpp, nullptr};
}
}
this->uploadTexData(texDims, target, SkIRect::MakeSize(texDims), externalFormat, externalType,
bpp, levels.begin(), levels.size());
return true;
}
void GrGLGpu::uploadTexData(SkISize texDims,
GrGLenum target,
SkIRect dstRect,
GrGLenum externalFormat,
GrGLenum externalType,
size_t bpp,
const GrMipLevel texels[],
int mipLevelCount) {
SkASSERT(!texDims.isEmpty());
SkASSERT(!dstRect.isEmpty());
SkASSERT(SkIRect::MakeSize(texDims).contains(dstRect));
SkASSERT(mipLevelCount > 0 && mipLevelCount <= SkMipmap::ComputeLevelCount(texDims) + 1);
SkASSERT(mipLevelCount == 1 || dstRect == SkIRect::MakeSize(texDims));
const GrGLCaps& caps = this->glCaps();
bool restoreGLRowLength = false;
this->unbindXferBuffer(GrGpuBufferType::kXferCpuToGpu);
GL_CALL(PixelStorei(GR_GL_UNPACK_ALIGNMENT, 1));
SkISize dims = dstRect.size();
for (int level = 0; level < mipLevelCount; ++level, dims = {std::max(dims.width() >> 1, 1),
std::max(dims.height() >> 1, 1)}) {
if (!texels[level].fPixels) {
continue;
}
const size_t trimRowBytes = dims.width() * bpp;
const size_t rowBytes = texels[level].fRowBytes;
if (caps.writePixelsRowBytesSupport() && (rowBytes != trimRowBytes || restoreGLRowLength)) {
GrGLint rowLength = static_cast<GrGLint>(rowBytes / bpp);
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, rowLength));
restoreGLRowLength = true;
} else {
SkASSERT(rowBytes == trimRowBytes);
}
GL_CALL(TexSubImage2D(target, level, dstRect.x(), dstRect.y(), dims.width(), dims.height(),
externalFormat, externalType, texels[level].fPixels));
}
if (restoreGLRowLength) {
SkASSERT(caps.writePixelsRowBytesSupport());
GL_CALL(PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
}
}
bool GrGLGpu::uploadCompressedTexData(SkTextureCompressionType compressionType,
GrGLFormat format,
SkISize dimensions,
skgpu::Mipmapped mipmapped,
GrGLenum target,
const void* data,
size_t dataSize) {
SkASSERT(format != GrGLFormat::kUnknown);
const GrGLCaps& caps = this->glCaps();
// We only need the internal format for compressed 2D textures.
GrGLenum internalFormat = caps.getTexImageOrStorageInternalFormat(format);
if (!internalFormat) {
return false;
}
SkASSERT(compressionType != SkTextureCompressionType::kNone);
bool useTexStorage = caps.formatSupportsTexStorage(format);
int numMipLevels = 1;
if (mipmapped == skgpu::Mipmapped::kYes) {
numMipLevels = SkMipmap::ComputeLevelCount(dimensions)+1;
}
this->unbindXferBuffer(GrGpuBufferType::kXferCpuToGpu);
// TODO: Make sure that the width and height that we pass to OpenGL
// is a multiple of the block size.
if (useTexStorage) {
// We never resize or change formats of textures.
GrGLenum error = GL_ALLOC_CALL(TexStorage2D(target, numMipLevels, internalFormat,
dimensions.width(), dimensions.height()));
if (error != GR_GL_NO_ERROR) {
return false;
}
size_t offset = 0;
for (int level = 0; level < numMipLevels; ++level) {
size_t levelDataSize = SkCompressedDataSize(compressionType, dimensions,
nullptr, false);
error = GL_ALLOC_CALL(CompressedTexSubImage2D(target,
level,
0, // left
0, // top
dimensions.width(),
dimensions.height(),
internalFormat,
SkToInt(levelDataSize),
&((const char*)data)[offset]));
if (error != GR_GL_NO_ERROR) {
return false;
}
offset += levelDataSize;
dimensions = {std::max(1, dimensions.width()/2), std::max(1, dimensions.height()/2)};
}
} else {
size_t offset = 0;
for (int level = 0; level < numMipLevels; ++level) {
size_t levelDataSize = SkCompressedDataSize(compressionType, dimensions,
nullptr, false);
const char* rawLevelData = &((const char*)data)[offset];
GrGLenum error = GL_ALLOC_CALL(CompressedTexImage2D(target,
level,
internalFormat,
dimensions.width(),
dimensions.height(),
0, // border
SkToInt(levelDataSize),
rawLevelData));
if (error != GR_GL_NO_ERROR) {
return false;
}
offset += levelDataSize;
dimensions = {std::max(1, dimensions.width()/2), std::max(1, dimensions.height()/2)};
}
}
return true;
}
bool GrGLGpu::renderbufferStorageMSAA(const GrGLContext& ctx, int sampleCount, GrGLenum format,
int width, int height) {
SkASSERT(GrGLCaps::kNone_MSFBOType != ctx.caps()->msFBOType());
GrGLenum error;
switch (ctx.caps()->msFBOType()) {
case GrGLCaps::kStandard_MSFBOType:
error = GL_ALLOC_CALL(RenderbufferStorageMultisample(GR_GL_RENDERBUFFER, sampleCount,
format, width, height));
break;
case GrGLCaps::kES_Apple_MSFBOType:
error = GL_ALLOC_CALL(RenderbufferStorageMultisampleES2APPLE(
GR_GL_RENDERBUFFER, sampleCount, format, width, height));
break;
case GrGLCaps::kES_EXT_MsToTexture_MSFBOType:
case GrGLCaps::kES_IMG_MsToTexture_MSFBOType:
error = GL_ALLOC_CALL(RenderbufferStorageMultisampleES2EXT(
GR_GL_RENDERBUFFER, sampleCount, format, width, height));
break;
case GrGLCaps::kNone_MSFBOType:
SkUNREACHABLE;
}
return error == GR_GL_NO_ERROR;
}
bool GrGLGpu::createRenderTargetObjects(const GrGLTexture::Desc& desc,
int sampleCount,
GrGLRenderTarget::IDs* rtIDs) {
rtIDs->fMSColorRenderbufferID = 0;
rtIDs->fMultisampleFBOID = 0;
rtIDs->fRTFBOOwnership = GrBackendObjectOwnership::kOwned;
rtIDs->fSingleSampleFBOID = 0;
rtIDs->fTotalMemorySamplesPerPixel = 0;
SkScopeExit cleanupOnFail([&] {
if (rtIDs->fMSColorRenderbufferID) {
GL_CALL(DeleteRenderbuffers(1, &rtIDs->fMSColorRenderbufferID));
}
if (rtIDs->fMultisampleFBOID != rtIDs->fSingleSampleFBOID) {
this->deleteFramebuffer(rtIDs->fMultisampleFBOID);
}
if (rtIDs->fSingleSampleFBOID) {
this->deleteFramebuffer(rtIDs->fSingleSampleFBOID);
}
});
GrGLenum colorRenderbufferFormat = 0; // suppress warning
if (desc.fFormat == GrGLFormat::kUnknown) {
return false;
}
if (sampleCount > 1 && GrGLCaps::kNone_MSFBOType == this->glCaps().msFBOType()) {
return false;
}
GL_CALL(GenFramebuffers(1, &rtIDs->fSingleSampleFBOID));
if (!rtIDs->fSingleSampleFBOID) {
RENDERENGINE_ABORTF("%s failed to GenFramebuffers!", __func__);
return false;
}
// If we are using multisampling we will create two FBOS. We render to one and then resolve to
// the texture bound to the other. The exception is the IMG multisample extension. With this
// extension the texture is multisampled when rendered to and then auto-resolves it when it is
// rendered from.
if (sampleCount <= 1) {
rtIDs->fMultisampleFBOID = GrGLRenderTarget::kUnresolvableFBOID;
} else if (this->glCaps().usesImplicitMSAAResolve()) {
// GrGLRenderTarget target will configure the FBO as multisample or not base on need.
rtIDs->fMultisampleFBOID = rtIDs->fSingleSampleFBOID;
} else {
GL_CALL(GenFramebuffers(1, &rtIDs->fMultisampleFBOID));
if (!rtIDs->fMultisampleFBOID) {
return false;
}
GL_CALL(GenRenderbuffers(1, &rtIDs->fMSColorRenderbufferID));
if (!rtIDs->fMSColorRenderbufferID) {
return false;
}
colorRenderbufferFormat = this->glCaps().getRenderbufferInternalFormat(desc.fFormat);
}
#if defined(__has_feature)
#define IS_TSAN __has_feature(thread_sanitizer)
#else
#define IS_TSAN 0
#endif
// below here we may bind the FBO
fHWBoundRenderTargetUniqueID.makeInvalid();
if (rtIDs->fMSColorRenderbufferID) {
SkASSERT(sampleCount > 1);
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, rtIDs->fMSColorRenderbufferID));
if (!this->renderbufferStorageMSAA(*fGLContext, sampleCount, colorRenderbufferFormat,
desc.fSize.width(), desc.fSize.height())) {
return false;
}
this->bindFramebuffer(GR_GL_FRAMEBUFFER, rtIDs->fMultisampleFBOID);
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER,
rtIDs->fMSColorRenderbufferID));
// See skbug.com/40043725
#if !IS_TSAN
if (!this->glCaps().skipErrorChecks()) {
GrGLenum status;
GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (status != GR_GL_FRAMEBUFFER_COMPLETE) {
return false;
}
if (this->glCaps().rebindColorAttachmentAfterCheckFramebufferStatus()) {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER,
0));
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER,
rtIDs->fMSColorRenderbufferID));
}
}
#endif
rtIDs->fTotalMemorySamplesPerPixel += sampleCount;
}
this->bindFramebuffer(GR_GL_FRAMEBUFFER, rtIDs->fSingleSampleFBOID);
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
desc.fTarget,
desc.fID,
0));
// See skbug.com/40043725
#if !IS_TSAN
if (!this->glCaps().skipErrorChecks()) {
GrGLenum status;
GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (status != GR_GL_FRAMEBUFFER_COMPLETE) {
return false;
}
if (this->glCaps().rebindColorAttachmentAfterCheckFramebufferStatus()) {
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
desc.fTarget,
0,
0));
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
desc.fTarget,
desc.fID,
0));
}
}
#endif
#undef IS_TSAN
++rtIDs->fTotalMemorySamplesPerPixel;
// We did it!
cleanupOnFail.clear();
return true;
}
// good to set a break-point here to know when createTexture fails
static sk_sp<GrTexture> return_null_texture() {
// SkDEBUGFAIL("null texture");
return nullptr;
}
static GrGLTextureParameters::SamplerOverriddenState set_initial_texture_params(
const GrGLInterface* interface,
const GrGLCaps& caps,
GrGLenum target) {
// Some drivers like to know filter/wrap before seeing glTexImage2D. Some
// drivers have a bug where an FBO won't be complete if it includes a
// texture that is not mipmap complete (considering the filter in use).
GrGLTextureParameters::SamplerOverriddenState state;
state.fMinFilter = GR_GL_NEAREST;
state.fMagFilter = GR_GL_NEAREST;
state.fWrapS = GR_GL_CLAMP_TO_EDGE;
state.fWrapT = GR_GL_CLAMP_TO_EDGE;
GR_GL_CALL(interface, TexParameteri(target, GR_GL_TEXTURE_MAG_FILTER, state.fMagFilter));
GR_GL_CALL(interface, TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, state.fMinFilter));
GR_GL_CALL(interface, TexParameteri(target, GR_GL_TEXTURE_WRAP_S, state.fWrapS));
GR_GL_CALL(interface, TexParameteri(target, GR_GL_TEXTURE_WRAP_T, state.fWrapT));
return state;
}
sk_sp<GrTexture> GrGLGpu::onCreateTexture(SkISize dimensions,
const GrBackendFormat& format,
GrRenderable renderable,
int renderTargetSampleCnt,
skgpu::Budgeted budgeted,
GrProtected isProtected,
int mipLevelCount,
uint32_t levelClearMask,
std::string_view label) {
if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
return nullptr;
}
SkASSERT(GrGLCaps::kNone_MSFBOType != this->glCaps().msFBOType() || renderTargetSampleCnt == 1);
SkASSERT(mipLevelCount > 0);
GrMipmapStatus mipmapStatus =
mipLevelCount > 1 ? GrMipmapStatus::kDirty : GrMipmapStatus::kNotAllocated;
GrGLTextureParameters::SamplerOverriddenState initialState;
GrGLTexture::Desc texDesc;
texDesc.fSize = dimensions;
switch (format.textureType()) {
case GrTextureType::kExternal:
case GrTextureType::kNone:
return nullptr;
case GrTextureType::k2D:
texDesc.fTarget = GR_GL_TEXTURE_2D;
break;
case GrTextureType::kRectangle:
if (mipLevelCount > 1 || !this->glCaps().rectangleTextureSupport()) {
return nullptr;
}
texDesc.fTarget = GR_GL_TEXTURE_RECTANGLE;
break;
}
texDesc.fFormat = GrBackendFormats::AsGLFormat(format);
texDesc.fOwnership = GrBackendObjectOwnership::kOwned;
SkASSERT(texDesc.fFormat != GrGLFormat::kUnknown);
SkASSERT(!GrGLFormatIsCompressed(texDesc.fFormat));
texDesc.fIsProtected = skgpu::Protected(isProtected == skgpu::Protected::kYes ||
this->glCaps().strictProtectedness());
texDesc.fID = this->createTexture(dimensions, texDesc.fFormat, texDesc.fTarget, renderable,
&initialState, mipLevelCount, texDesc.fIsProtected, label);
if (!texDesc.fID) {
return return_null_texture();
}
sk_sp<GrGLTexture> tex;
if (renderable == GrRenderable::kYes) {
// unbind the texture from the texture unit before binding it to the frame buffer
GL_CALL(BindTexture(texDesc.fTarget, 0));
GrGLRenderTarget::IDs rtIDDesc;
if (!this->createRenderTargetObjects(texDesc, renderTargetSampleCnt, &rtIDDesc)) {
GL_CALL(DeleteTextures(1, &texDesc.fID));
return return_null_texture();
}
tex = sk_make_sp<GrGLTextureRenderTarget>(this,
budgeted,
renderTargetSampleCnt,
texDesc,
rtIDDesc,
mipmapStatus,
label);
tex->baseLevelWasBoundToFBO();
} else {
tex = sk_make_sp<GrGLTexture>(this, budgeted, texDesc, mipmapStatus, label);
}
// The non-sampler params are still at their default values.
tex->parameters()->set(&initialState, GrGLTextureParameters::NonsamplerState(),
fResetTimestampForTextureParameters);
if (levelClearMask) {
if (this->glCaps().clearTextureSupport()) {
GrGLenum externalFormat, externalType;
GrColorType colorType;
this->glCaps().getTexSubImageDefaultFormatTypeAndColorType(
texDesc.fFormat, &externalFormat, &externalType, &colorType);
for (int i = 0; i < mipLevelCount; ++i) {
if (levelClearMask & (1U << i)) {
GL_CALL(ClearTexImage(tex->textureID(), i, externalFormat, externalType,
nullptr));
}
}
} else if (this->glCaps().canFormatBeFBOColorAttachment(
GrBackendFormats::AsGLFormat(format)) &&
!this->glCaps().performColorClearsAsDraws()) {
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
this->flushColorWrite(true);
this->flushClearColor({0, 0, 0, 0});
for (int i = 0; i < mipLevelCount; ++i) {
if (levelClearMask & (1U << i)) {
this->bindSurfaceFBOForPixelOps(tex.get(), i, GR_GL_FRAMEBUFFER,
kDst_TempFBOTarget);
GL_CALL(Clear(GR_GL_COLOR_BUFFER_BIT));
this->unbindSurfaceFBOForPixelOps(tex.get(), i, GR_GL_FRAMEBUFFER);
}
}
fHWBoundRenderTargetUniqueID.makeInvalid();
} else {
this->bindTextureToScratchUnit(texDesc.fTarget, tex->textureID());
std::array<float, 4> zeros = {};
this->uploadColorToTex(texDesc.fFormat,
texDesc.fSize,
texDesc.fTarget,
zeros,
levelClearMask);
}
}
return tex;
}
sk_sp<GrTexture> GrGLGpu::onCreateCompressedTexture(SkISize dimensions,
const GrBackendFormat& format,
skgpu::Budgeted budgeted,
skgpu::Mipmapped mipmapped,
GrProtected isProtected,
const void* data,
size_t dataSize) {
if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
return nullptr;
}
SkTextureCompressionType compression = GrBackendFormatToCompressionType(format);
GrGLTextureParameters::SamplerOverriddenState initialState;
GrGLTexture::Desc desc;
desc.fSize = dimensions;
desc.fTarget = GR_GL_TEXTURE_2D;
desc.fOwnership = GrBackendObjectOwnership::kOwned;
desc.fFormat = GrBackendFormats::AsGLFormat(format);
desc.fIsProtected = skgpu::Protected(isProtected == skgpu::Protected::kYes ||
this->glCaps().strictProtectedness());
desc.fID = this->createCompressedTexture2D(desc.fSize, compression, desc.fFormat,
mipmapped, desc.fIsProtected, &initialState);
if (!desc.fID) {
return nullptr;
}
if (data) {
if (!this->uploadCompressedTexData(compression, desc.fFormat, dimensions, mipmapped,
GR_GL_TEXTURE_2D, data, dataSize)) {
GL_CALL(DeleteTextures(1, &desc.fID));
return nullptr;
}
}
// Unbind this texture from the scratch texture unit.
this->bindTextureToScratchUnit(GR_GL_TEXTURE_2D, 0);
GrMipmapStatus mipmapStatus = mipmapped == skgpu::Mipmapped::kYes
? GrMipmapStatus::kValid
: GrMipmapStatus::kNotAllocated;
auto tex = sk_make_sp<GrGLTexture>(this, budgeted, desc, mipmapStatus,
/*label=*/"GLGpuCreateCompressedTexture");
// The non-sampler params are still at their default values.
tex->parameters()->set(&initialState, GrGLTextureParameters::NonsamplerState(),
fResetTimestampForTextureParameters);
return tex;
}
GrBackendTexture GrGLGpu::onCreateCompressedBackendTexture(SkISize dimensions,
const GrBackendFormat& format,
skgpu::Mipmapped mipmapped,
GrProtected isProtected) {
if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
return {};
}
this->handleDirtyContext();
GrGLFormat glFormat = GrBackendFormats::AsGLFormat(format);
if (glFormat == GrGLFormat::kUnknown) {
return {};
}
SkTextureCompressionType compression = GrBackendFormatToCompressionType(format);
GrGLTextureInfo info;
GrGLTextureParameters::SamplerOverriddenState initialState;
info.fTarget = GR_GL_TEXTURE_2D;
info.fFormat = GrGLFormatToEnum(glFormat);
info.fProtected = skgpu::Protected(isProtected == skgpu::Protected::kYes ||
this->glCaps().strictProtectedness());
info.fID = this->createCompressedTexture2D(dimensions, compression, glFormat,
mipmapped, info.fProtected, &initialState);
if (!info.fID) {
return {};
}
// Unbind this texture from the scratch texture unit.
this->bindTextureToScratchUnit(GR_GL_TEXTURE_2D, 0);
auto parameters = sk_make_sp<GrGLTextureParameters>();
// The non-sampler params are still at their default values.
parameters->set(&initialState, GrGLTextureParameters::NonsamplerState(),
fResetTimestampForTextureParameters);
return GrBackendTextures::MakeGL(
dimensions.width(), dimensions.height(), mipmapped, info, std::move(parameters));
}
bool GrGLGpu::onUpdateCompressedBackendTexture(const GrBackendTexture& backendTexture,
sk_sp<skgpu::RefCntedCallback> finishedCallback,
const void* data,
size_t length) {
GrGLTextureInfo info;
SkAssertResult(GrBackendTextures::GetGLTextureInfo(backendTexture, &info));
GrBackendFormat format = backendTexture.getBackendFormat();
GrGLFormat glFormat = GrBackendFormats::AsGLFormat(format);
if (glFormat == GrGLFormat::kUnknown) {
return false;
}
SkTextureCompressionType compression = GrBackendFormatToCompressionType(format);
skgpu::Mipmapped mipmapped =
backendTexture.hasMipmaps() ? skgpu::Mipmapped::kYes : skgpu::Mipmapped::kNo;
this->bindTextureToScratchUnit(info.fTarget, info.fID);
// If we have mips make sure the base level is set to 0 and the max level set to numMipLevels-1
// so that the uploads go to the right levels.
if (backendTexture.hasMipmaps() && this->glCaps().mipmapLevelControlSupport()) {
auto params = get_gl_texture_params(backendTexture);
GrGLTextureParameters::NonsamplerState nonsamplerState = params->nonsamplerState();
if (params->nonsamplerState().fBaseMipMapLevel != 0) {
GL_CALL(TexParameteri(info.fTarget, GR_GL_TEXTURE_BASE_LEVEL, 0));
nonsamplerState.fBaseMipMapLevel = 0;
}
int numMipLevels =
SkMipmap::ComputeLevelCount(backendTexture.width(), backendTexture.height()) + 1;
if (params->nonsamplerState().fMaxMipmapLevel != (numMipLevels - 1)) {
GL_CALL(TexParameteri(info.fTarget, GR_GL_TEXTURE_MAX_LEVEL, numMipLevels - 1));
nonsamplerState.fBaseMipMapLevel = numMipLevels - 1;
}
params->set(nullptr, nonsamplerState, fResetTimestampForTextureParameters);
}
bool result = this->uploadCompressedTexData(compression,
glFormat,
backendTexture.dimensions(),
mipmapped,
GR_GL_TEXTURE_2D,
data,
length);
// Unbind this texture from the scratch texture unit.
this->bindTextureToScratchUnit(info.fTarget, 0);
return result;
}
int GrGLGpu::getCompatibleStencilIndex(GrGLFormat format) {
if (this->glCaps().avoidStencilBuffers()) {
return -1;
}
static const int kSize = 16;
SkASSERT(this->glCaps().canFormatBeFBOColorAttachment(format));
if (!this->glCaps().hasStencilFormatBeenDeterminedForFormat(format)) {
// Default to unsupported, set this if we find a stencil format that works.
int firstWorkingStencilFormatIndex = -1;
// In the following we're not actually creating the StencilBuffer that will be used but,
// rather, are just determining the correct format to use. We assume that the
// acceptable format will not change between Protected and unProtected stencil buffers and
// that using Protected::kNo here will not cause any issues with strictProtectedness mode
// (since no work is actually submitted to a queue).
const GrProtected kNotProtected = skgpu::Protected::kNo;
GrGLuint colorID = this->createTexture({kSize, kSize}, format, GR_GL_TEXTURE_2D,
GrRenderable::kYes,
nullptr,
1,
kNotProtected,
/*label=*/"Skia");
if (!colorID) {
return -1;
}
// unbind the texture from the texture unit before binding it to the frame buffer
GL_CALL(BindTexture(GR_GL_TEXTURE_2D, 0));
// Create Framebuffer
GrGLuint fb = 0;
GL_CALL(GenFramebuffers(1, &fb));
this->bindFramebuffer(GR_GL_FRAMEBUFFER, fb);
fHWBoundRenderTargetUniqueID.makeInvalid();
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D,
colorID,
0));
GrGLuint sbRBID = 0;
GL_CALL(GenRenderbuffers(1, &sbRBID));
// look over formats till I find a compatible one
int stencilFmtCnt = this->glCaps().stencilFormats().size();
if (sbRBID) {
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, sbRBID));
for (int i = 0; i < stencilFmtCnt && sbRBID; ++i) {
GrGLFormat sFmt = this->glCaps().stencilFormats()[i];
GrGLenum error = GL_ALLOC_CALL(RenderbufferStorage(
GR_GL_RENDERBUFFER, GrGLFormatToEnum(sFmt), kSize, kSize));
if (error == GR_GL_NO_ERROR) {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, sbRBID));
if (GrGLFormatIsPackedDepthStencil(sFmt)) {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, sbRBID));
} else {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
}
GrGLenum status;
GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (status == GR_GL_FRAMEBUFFER_COMPLETE) {
firstWorkingStencilFormatIndex = i;
break;
}
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
if (GrGLFormatIsPackedDepthStencil(sFmt)) {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
}
}
}
GL_CALL(DeleteRenderbuffers(1, &sbRBID));
}
GL_CALL(DeleteTextures(1, &colorID));
this->bindFramebuffer(GR_GL_FRAMEBUFFER, 0);
this->deleteFramebuffer(fb);
fGLContext->caps()->setStencilFormatIndexForFormat(format, firstWorkingStencilFormatIndex);
}
return this->glCaps().getStencilFormatIndexForFormat(format);
}
static void set_khr_debug_label(GrGLGpu* gpu, const GrGLuint id, std::string_view label) {
const std::string khr_debug_label = label.empty() ? "Skia" : std::string(label);
if (gpu->glCaps().debugSupport()) {
GR_GL_CALL(gpu->glInterface(), ObjectLabel(GR_GL_TEXTURE, id, -1, khr_debug_label.c_str()));
}
}
GrGLuint GrGLGpu::createCompressedTexture2D(
SkISize dimensions,
SkTextureCompressionType compression,
GrGLFormat format,
skgpu::Mipmapped mipmapped,
GrProtected isProtected,
GrGLTextureParameters::SamplerOverriddenState* initialState) {
if (format == GrGLFormat::kUnknown) {
return 0;
}
GrGLuint id = 0;
GL_CALL(GenTextures(1, &id));
if (!id) {
return 0;
}
this->bindTextureToScratchUnit(GR_GL_TEXTURE_2D, id);
set_khr_debug_label(this, id, /*label=*/"Skia");
*initialState = set_initial_texture_params(this->glInterface(),
this->glCaps(),
GR_GL_TEXTURE_2D);
SkASSERT(isProtected == skgpu::Protected::kNo || this->glCaps().supportsProtectedContent());
SkASSERT(!this->glCaps().strictProtectedness() || isProtected == skgpu::Protected::kYes);
if (GrProtected::kYes == isProtected) {
if (this->glCaps().supportsProtectedContent()) {
GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_PROTECTED_EXT, GR_GL_TRUE));
} else {
GL_CALL(DeleteTextures(1, &id));
return 0;
}
}
return id;
}
GrGLuint GrGLGpu::createTexture(SkISize dimensions,
GrGLFormat format,
GrGLenum target,
GrRenderable renderable,
GrGLTextureParameters::SamplerOverriddenState* initialState,
int mipLevelCount,
GrProtected isProtected,
std::string_view label) {
SkASSERT(format != GrGLFormat::kUnknown);
SkASSERT(!GrGLFormatIsCompressed(format));
GrGLuint id = 0;
GL_CALL(GenTextures(1, &id));
if (!id) {
return 0;
}
this->bindTextureToScratchUnit(target, id);
set_khr_debug_label(this, id, label);
if (GrRenderable::kYes == renderable && this->glCaps().textureUsageSupport()) {
// provides a hint about how this texture will be used
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_USAGE, GR_GL_FRAMEBUFFER_ATTACHMENT));
}
if (initialState) {
*initialState = set_initial_texture_params(this->glInterface(), this->glCaps(), target);
} else {
set_initial_texture_params(this->glInterface(), this->glCaps(), target);
}
SkASSERT(isProtected == skgpu::Protected::kNo || this->glCaps().supportsProtectedContent());
SkASSERT(!this->glCaps().strictProtectedness() || isProtected == skgpu::Protected::kYes);
if (GrProtected::kYes == isProtected) {
if (this->glCaps().supportsProtectedContent()) {
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_PROTECTED_EXT, GR_GL_TRUE));
} else {
GL_CALL(DeleteTextures(1, &id));
return 0;
}
}
GrGLenum internalFormat = this->glCaps().getTexImageOrStorageInternalFormat(format);
bool success = false;
if (internalFormat) {
if (this->glCaps().formatSupportsTexStorage(format)) {
auto levelCount = std::max(mipLevelCount, 1);
GrGLenum error = GL_ALLOC_CALL(TexStorage2D(target, levelCount, internalFormat,
dimensions.width(), dimensions.height()));
success = (error == GR_GL_NO_ERROR);
} else {
GrGLenum externalFormat, externalType;
this->glCaps().getTexImageExternalFormatAndType(format, &externalFormat, &externalType);
GrGLenum error = GR_GL_NO_ERROR;
if (externalFormat && externalType) {
// If we don't unbind here then nullptr is treated as a zero offset into the bound
// transfer buffer rather than an indication that there is no data to copy.
this->unbindXferBuffer(GrGpuBufferType::kXferCpuToGpu);
for (int level = 0; level < mipLevelCount && error == GR_GL_NO_ERROR; level++) {
const int twoToTheMipLevel = 1 << level;
const int currentWidth = std::max(1, dimensions.width() / twoToTheMipLevel);
const int currentHeight = std::max(1, dimensions.height() / twoToTheMipLevel);
error = GL_ALLOC_CALL(TexImage2D(target, level, internalFormat, currentWidth,
currentHeight, 0, externalFormat, externalType,
nullptr));
}
success = (error == GR_GL_NO_ERROR);
}
}
}
if (success) {
return id;
}
GL_CALL(DeleteTextures(1, &id));
return 0;
}
sk_sp<GrAttachment> GrGLGpu::makeStencilAttachment(const GrBackendFormat& colorFormat,
SkISize dimensions, int numStencilSamples) {
int sIdx = this->getCompatibleStencilIndex(GrBackendFormats::AsGLFormat(colorFormat));
if (sIdx < 0) {
return nullptr;
}
GrGLFormat sFmt = this->glCaps().stencilFormats()[sIdx];
auto stencil = GrGLAttachment::MakeStencil(this, dimensions, numStencilSamples, sFmt);
if (stencil) {
fStats.incStencilAttachmentCreates();
}
return stencil;
}
sk_sp<GrAttachment> GrGLGpu::makeMSAAAttachment(SkISize dimensions, const GrBackendFormat& format,
int numSamples, GrProtected isProtected,
GrMemoryless isMemoryless) {
SkASSERT(isMemoryless == GrMemoryless::kNo);
return GrGLAttachment::MakeMSAA(
this, dimensions, numSamples, GrBackendFormats::AsGLFormat(format));
}
////////////////////////////////////////////////////////////////////////////////
sk_sp<GrGpuBuffer> GrGLGpu::onCreateBuffer(size_t size,
GrGpuBufferType intendedType,
GrAccessPattern accessPattern) {
return GrGLBuffer::Make(this, size, intendedType, accessPattern);
}
void GrGLGpu::flushScissorTest(GrScissorTest scissorTest) {
if (GrScissorTest::kEnabled == scissorTest) {
if (kYes_TriState != fHWScissorSettings.fEnabled) {
GL_CALL(Enable(GR_GL_SCISSOR_TEST));
fHWScissorSettings.fEnabled = kYes_TriState;
}
} else {
if (kNo_TriState != fHWScissorSettings.fEnabled) {
GL_CALL(Disable(GR_GL_SCISSOR_TEST));
fHWScissorSettings.fEnabled = kNo_TriState;
}
}
}
void GrGLGpu::flushScissorRect(const SkIRect& scissor, int rtHeight, GrSurfaceOrigin rtOrigin) {
SkASSERT(fHWScissorSettings.fEnabled == TriState::kYes_TriState);
auto nativeScissor = GrNativeRect::MakeRelativeTo(rtOrigin, rtHeight, scissor);
if (fHWScissorSettings.fRect != nativeScissor) {
GL_CALL(Scissor(nativeScissor.fX, nativeScissor.fY, nativeScissor.fWidth,
nativeScissor.fHeight));
fHWScissorSettings.fRect = nativeScissor;
}
}
void GrGLGpu::flushViewport(const SkIRect& viewport, int rtHeight, GrSurfaceOrigin rtOrigin) {
auto nativeViewport = GrNativeRect::MakeRelativeTo(rtOrigin, rtHeight, viewport);
if (fHWViewport != nativeViewport) {
GL_CALL(Viewport(nativeViewport.fX, nativeViewport.fY,
nativeViewport.fWidth, nativeViewport.fHeight));
fHWViewport = nativeViewport;
}
}
void GrGLGpu::flushWindowRectangles(const GrWindowRectsState& windowState,
const GrGLRenderTarget* rt, GrSurfaceOrigin origin) {
#ifndef USE_NSIGHT
typedef GrWindowRectsState::Mode Mode;
// Window rects can't be used on-screen.
SkASSERT(!windowState.enabled() || !rt->glRTFBOIDis0());
SkASSERT(windowState.numWindows() <= this->caps()->maxWindowRectangles());
if (!this->caps()->maxWindowRectangles() ||
fHWWindowRectsState.knownEqualTo(origin, rt->width(), rt->height(), windowState)) {
return;
}
// This is purely a workaround for a spurious warning generated by gcc. Otherwise the above
// assert would be sufficient. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=5912
int numWindows = std::min(windowState.numWindows(), int(GrWindowRectangles::kMaxWindows));
SkASSERT(windowState.numWindows() == numWindows);
GrNativeRect glwindows[GrWindowRectangles::kMaxWindows];
const SkIRect* skwindows = windowState.windows().data();
for (int i = 0; i < numWindows; ++i) {
glwindows[i].setRelativeTo(origin, rt->height(), skwindows[i]);
}
GrGLenum glmode = (Mode::kExclusive == windowState.mode()) ? GR_GL_EXCLUSIVE : GR_GL_INCLUSIVE;
GL_CALL(WindowRectangles(glmode, numWindows, glwindows->asInts()));
fHWWindowRectsState.set(origin, rt->width(), rt->height(), windowState);
#endif
}
void GrGLGpu::disableWindowRectangles() {
#ifndef USE_NSIGHT
if (!this->caps()->maxWindowRectangles() || fHWWindowRectsState.knownDisabled()) {
return;
}
GL_CALL(WindowRectangles(GR_GL_EXCLUSIVE, 0, nullptr));
fHWWindowRectsState.setDisabled();
#endif
}
bool GrGLGpu::flushGLState(GrRenderTarget* renderTarget, bool useMultisampleFBO,
const GrProgramInfo& programInfo) {
this->handleDirtyContext();
sk_sp<GrGLProgram> program = fProgramCache->findOrCreateProgram(this->getContext(),
programInfo);
if (!program) {
GrCapsDebugf(this->caps(), "Failed to create program!\n");
return false;
}
this->flushProgram(std::move(program));
// Swizzle the blend to match what the shader will output.
this->flushBlendAndColorWrite(programInfo.pipeline().getXferProcessor().getBlendInfo(),
programInfo.pipeline().writeSwizzle());
fHWProgram->updateUniforms(renderTarget, programInfo);
GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(renderTarget);
GrStencilSettings stencil;
if (programInfo.isStencilEnabled()) {
SkASSERT(glRT->getStencilAttachment(useMultisampleFBO));
stencil.reset(*programInfo.userStencilSettings(),
programInfo.pipeline().hasStencilClip(),
glRT->numStencilBits(useMultisampleFBO));
}
this->flushStencil(stencil, programInfo.origin());
this->flushScissorTest(GrScissorTest(programInfo.pipeline().isScissorTestEnabled()));
this->flushWindowRectangles(programInfo.pipeline().getWindowRectsState(),
glRT, programInfo.origin());
this->flushConservativeRasterState(programInfo.pipeline().usesConservativeRaster());
this->flushWireframeState(programInfo.pipeline().isWireframe());
// This must come after textures are flushed because a texture may need
// to be msaa-resolved (which will modify bound FBO state).
this->flushRenderTarget(glRT, useMultisampleFBO);
return true;
}
void GrGLGpu::flushProgram(sk_sp<GrGLProgram> program) {
if (!program) {
fHWProgram.reset();
fHWProgramID = 0;
return;
}
SkASSERT((program == fHWProgram) == (fHWProgramID == program->programID()));
if (program == fHWProgram) {
return;
}
auto id = program->programID();
SkASSERT(id);
GL_CALL(UseProgram(id));
fHWProgram = std::move(program);
fHWProgramID = id;
}
void GrGLGpu::flushProgram(GrGLuint id) {
SkASSERT(id);
if (fHWProgramID == id) {
SkASSERT(!fHWProgram);
return;
}
fHWProgram.reset();
GL_CALL(UseProgram(id));
fHWProgramID = id;
}
void GrGLGpu::didDrawTo(GrRenderTarget* rt) {
SkASSERT(fHWWriteToColor != kUnknown_TriState);
if (fHWWriteToColor == kYes_TriState) {
// The bounds are only used to check for empty and we don't know the bounds. The origin
// is irrelevant if there are no bounds.
this->didWriteToSurface(rt, kTopLeft_GrSurfaceOrigin, /*bounds=*/nullptr);
}
}
GrGLenum GrGLGpu::bindBuffer(GrGpuBufferType type, const GrBuffer* buffer) {
this->handleDirtyContext();
// Index buffer state is tied to the vertex array.
if (GrGpuBufferType::kIndex == type) {
this->bindVertexArray(0);
}
auto* bufferState = this->hwBufferState(type);
if (buffer->isCpuBuffer()) {
if (!bufferState->fBufferZeroKnownBound) {
GL_CALL(BindBuffer(bufferState->fGLTarget, 0));
bufferState->fBufferZeroKnownBound = true;
bufferState->fBoundBufferUniqueID.makeInvalid();
}
} else if (static_cast<const GrGpuBuffer*>(buffer)->uniqueID() !=
bufferState->fBoundBufferUniqueID) {
const GrGLBuffer* glBuffer = static_cast<const GrGLBuffer*>(buffer);
GL_CALL(BindBuffer(bufferState->fGLTarget, glBuffer->bufferID()));
bufferState->fBufferZeroKnownBound = false;
bufferState->fBoundBufferUniqueID = glBuffer->uniqueID();
}
return bufferState->fGLTarget;
}
void GrGLGpu::clear(const GrScissorState& scissor,
std::array<float, 4> color,
GrRenderTarget* target,
bool useMultisampleFBO,
GrSurfaceOrigin origin) {
// parent class should never let us get here with no RT
SkASSERT(target);
SkASSERT(!this->caps()->performColorClearsAsDraws());
SkASSERT(!scissor.enabled() || !this->caps()->performPartialClearsAsDraws());
this->handleDirtyContext();
GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(target);
this->flushRenderTarget(glRT, useMultisampleFBO);
this->flushScissor(scissor, glRT->height(), origin);
this->disableWindowRectangles();
this->flushColorWrite(true);
this->flushClearColor(color);
GL_CALL(Clear(GR_GL_COLOR_BUFFER_BIT));
this->didWriteToSurface(glRT, origin, scissor.enabled() ? &scissor.rect() : nullptr);
}
static bool use_tiled_rendering(const GrGLCaps& glCaps,
const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) {
// Only use the tiled rendering extension if we can explicitly clear and discard the stencil.
// Otherwise it's faster to just not use it.
return glCaps.tiledRenderingSupport() && GrLoadOp::kClear == stencilLoadStore.fLoadOp &&
GrStoreOp::kDiscard == stencilLoadStore.fStoreOp;
}
void GrGLGpu::beginCommandBuffer(GrGLRenderTarget* rt, bool useMultisampleFBO,
const SkIRect& bounds, GrSurfaceOrigin origin,
const GrOpsRenderPass::LoadAndStoreInfo& colorLoadStore,
const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) {
SkASSERT(!fIsExecutingCommandBuffer_DebugOnly);
this->handleDirtyContext();
this->flushRenderTarget(rt, useMultisampleFBO);
SkDEBUGCODE(fIsExecutingCommandBuffer_DebugOnly = true);
if (use_tiled_rendering(this->glCaps(), stencilLoadStore)) {
auto nativeBounds = GrNativeRect::MakeRelativeTo(origin, rt->height(), bounds);
GrGLbitfield preserveMask = (GrLoadOp::kLoad == colorLoadStore.fLoadOp)
? GR_GL_COLOR_BUFFER_BIT0 : GR_GL_NONE;
SkASSERT(GrLoadOp::kLoad != stencilLoadStore.fLoadOp); // Handled by use_tiled_rendering().
GL_CALL(StartTiling(nativeBounds.fX, nativeBounds.fY, nativeBounds.fWidth,
nativeBounds.fHeight, preserveMask));
}
GrGLbitfield clearMask = 0;
if (GrLoadOp::kClear == colorLoadStore.fLoadOp) {
SkASSERT(!this->caps()->performColorClearsAsDraws());
this->flushClearColor(colorLoadStore.fClearColor);
this->flushColorWrite(true);
clearMask |= GR_GL_COLOR_BUFFER_BIT;
}
if (GrLoadOp::kClear == stencilLoadStore.fLoadOp) {
SkASSERT(!this->caps()->performStencilClearsAsDraws());
GL_CALL(StencilMask(0xffffffff));
GL_CALL(ClearStencil(0));
clearMask |= GR_GL_STENCIL_BUFFER_BIT;
}
if (clearMask) {
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
GL_CALL(Clear(clearMask));
if (clearMask & GR_GL_COLOR_BUFFER_BIT) {
this->didWriteToSurface(rt, origin, nullptr);
}
}
}
void GrGLGpu::endCommandBuffer(GrGLRenderTarget* rt, bool useMultisampleFBO,
const GrOpsRenderPass::LoadAndStoreInfo& colorLoadStore,
const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilLoadStore) {
SkASSERT(fIsExecutingCommandBuffer_DebugOnly);
this->handleDirtyContext();
if (rt->uniqueID() != fHWBoundRenderTargetUniqueID ||
useMultisampleFBO != fHWBoundFramebufferIsMSAA) {
// The framebuffer binding changed in the middle of a command buffer. We should have already
// printed a warning during onFBOChanged.
return;
}
if (GrGLCaps::kNone_InvalidateFBType != this->glCaps().invalidateFBType()) {
STArray<2, GrGLenum> discardAttachments;
if (GrStoreOp::kDiscard == colorLoadStore.fStoreOp) {
discardAttachments.push_back(
rt->isFBO0(useMultisampleFBO) ? GR_GL_COLOR : GR_GL_COLOR_ATTACHMENT0);
}
if (GrStoreOp::kDiscard == stencilLoadStore.fStoreOp) {
discardAttachments.push_back(
rt->isFBO0(useMultisampleFBO) ? GR_GL_STENCIL : GR_GL_STENCIL_ATTACHMENT);
}
if (!discardAttachments.empty()) {
if (GrGLCaps::kInvalidate_InvalidateFBType == this->glCaps().invalidateFBType()) {
GL_CALL(InvalidateFramebuffer(GR_GL_FRAMEBUFFER, discardAttachments.size(),
discardAttachments.begin()));
} else {
SkASSERT(GrGLCaps::kDiscard_InvalidateFBType == this->glCaps().invalidateFBType());
GL_CALL(DiscardFramebuffer(GR_GL_FRAMEBUFFER, discardAttachments.size(),
discardAttachments.begin()));
}
}
}
if (use_tiled_rendering(this->glCaps(), stencilLoadStore)) {
GrGLbitfield preserveMask = (GrStoreOp::kStore == colorLoadStore.fStoreOp)
? GR_GL_COLOR_BUFFER_BIT0 : GR_GL_NONE;
// Handled by use_tiled_rendering().
SkASSERT(GrStoreOp::kStore != stencilLoadStore.fStoreOp);
GL_CALL(EndTiling(preserveMask));
}
SkDEBUGCODE(fIsExecutingCommandBuffer_DebugOnly = false);
}
void GrGLGpu::clearStencilClip(const GrScissorState& scissor, bool insideStencilMask,
GrRenderTarget* target, bool useMultisampleFBO,
GrSurfaceOrigin origin) {
SkASSERT(target);
SkASSERT(!this->caps()->performStencilClearsAsDraws());
SkASSERT(!scissor.enabled() || !this->caps()->performPartialClearsAsDraws());
this->handleDirtyContext();
GrAttachment* sb = target->getStencilAttachment(useMultisampleFBO);
if (!sb) {
// We should only get here if we marked a proxy as requiring a SB. However,
// the SB creation could later fail. Likely clipping is going to go awry now.
return;
}
GrGLint stencilBitCount = GrBackendFormatStencilBits(sb->backendFormat());
#if 0
SkASSERT(stencilBitCount > 0);
GrGLint clipStencilMask = (1 << (stencilBitCount - 1));
#else
// we could just clear the clip bit but when we go through
// ANGLE a partial stencil mask will cause clears to be
// turned into draws. Our contract on OpsTask says that
// changing the clip between stencil passes may or may not
// zero the client's clip bits. So we just clear the whole thing.
static const GrGLint clipStencilMask = ~0;
#endif
GrGLint value;
if (insideStencilMask) {
value = (1 << (stencilBitCount - 1));
} else {
value = 0;
}
GrGLRenderTarget* glRT = static_cast<GrGLRenderTarget*>(target);
this->flushRenderTarget(glRT, useMultisampleFBO);
this->flushScissor(scissor, glRT->height(), origin);
this->disableWindowRectangles();
GL_CALL(StencilMask((uint32_t) clipStencilMask));
GL_CALL(ClearStencil(value));
GL_CALL(Clear(GR_GL_STENCIL_BUFFER_BIT));
fHWStencilSettings.invalidate();
}
bool GrGLGpu::readOrTransferPixelsFrom(GrSurface* surface,
SkIRect rect,
GrColorType surfaceColorType,
GrColorType dstColorType,
void* offsetOrPtr,
int rowWidthInPixels) {
SkASSERT(surface);
auto format = GrBackendFormats::AsGLFormat(surface->backendFormat());
GrGLRenderTarget* renderTarget = static_cast<GrGLRenderTarget*>(surface->asRenderTarget());
if (!renderTarget && !this->glCaps().isFormatRenderable(format, 1)) {
return false;
}
GrGLenum externalFormat = 0;
GrGLenum externalType = 0;
this->glCaps().getReadPixelsFormat(
format, surfaceColorType, dstColorType, &externalFormat, &externalType);
if (!externalFormat || !externalType) {
return false;
}
if (renderTarget) {
// Always bind the single sample FBO since we can't read pixels from an MSAA framebuffer.
constexpr bool useMultisampleFBO = false;
if (renderTarget->numSamples() > 1 && renderTarget->isFBO0(useMultisampleFBO)) {
return false;
}
this->flushRenderTarget(renderTarget, useMultisampleFBO);
} else {
// Use a temporary FBO.
this->bindSurfaceFBOForPixelOps(surface, 0, GR_GL_FRAMEBUFFER, kSrc_TempFBOTarget);
fHWBoundRenderTargetUniqueID.makeInvalid();
}
// determine if GL can read using the passed rowBytes or if we need a scratch buffer.
if (rowWidthInPixels != rect.width()) {
SkASSERT(this->glCaps().readPixelsRowBytesSupport());
GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, rowWidthInPixels));
}
GL_CALL(PixelStorei(GR_GL_PACK_ALIGNMENT, 1));
GL_CALL(ReadPixels(rect.left(),
rect.top(),
rect.width(),
rect.height(),
externalFormat,
externalType,
offsetOrPtr));
if (rowWidthInPixels != rect.width()) {
SkASSERT(this->glCaps().readPixelsRowBytesSupport());
GL_CALL(PixelStorei(GR_GL_PACK_ROW_LENGTH, 0));
}
if (!renderTarget) {
this->unbindSurfaceFBOForPixelOps(surface, 0, GR_GL_FRAMEBUFFER);
}
return true;
}
bool GrGLGpu::onReadPixels(GrSurface* surface,
SkIRect rect,
GrColorType surfaceColorType,
GrColorType dstColorType,
void* buffer,
size_t rowBytes) {
SkASSERT(surface);
size_t bytesPerPixel = GrColorTypeBytesPerPixel(dstColorType);
// GL_PACK_ROW_LENGTH is in terms of pixels not bytes.
int rowPixelWidth;
if (rowBytes == SkToSizeT(rect.width()*bytesPerPixel)) {
rowPixelWidth = rect.width();
} else {
SkASSERT(!(rowBytes % bytesPerPixel));
rowPixelWidth = rowBytes / bytesPerPixel;
}
this->unbindXferBuffer(GrGpuBufferType::kXferGpuToCpu);
return this->readOrTransferPixelsFrom(surface,
rect,
surfaceColorType,
dstColorType,
buffer,
rowPixelWidth);
}
GrOpsRenderPass* GrGLGpu::onGetOpsRenderPass(
GrRenderTarget* rt,
bool useMultisampleFBO,
GrAttachment*,
GrSurfaceOrigin origin,
const SkIRect& bounds,
const GrOpsRenderPass::LoadAndStoreInfo& colorInfo,
const GrOpsRenderPass::StencilLoadAndStoreInfo& stencilInfo,
const TArray<GrSurfaceProxy*, true>& sampledProxies,
GrXferBarrierFlags renderPassXferBarriers) {
if (!fCachedOpsRenderPass) {
fCachedOpsRenderPass = std::make_unique<GrGLOpsRenderPass>(this);
}
if (useMultisampleFBO && rt->numSamples() == 1) {
// We will be using dynamic msaa. Ensure there is an attachment.
auto glRT = static_cast<GrGLRenderTarget*>(rt);
if (!glRT->ensureDynamicMSAAAttachment()) {
SkDebugf("WARNING: Failed to make dmsaa attachment. Render pass will be dropped.");
return nullptr;
}
}
fCachedOpsRenderPass->set(rt, useMultisampleFBO, bounds, origin, colorInfo, stencilInfo);
return fCachedOpsRenderPass.get();
}
void GrGLGpu::flushRenderTarget(GrGLRenderTarget* target, bool useMultisampleFBO) {
SkASSERT(target);
GrGpuResource::UniqueID rtID = target->uniqueID();
if (fHWBoundRenderTargetUniqueID != rtID ||
fHWBoundFramebufferIsMSAA != useMultisampleFBO ||
target->mustRebind(useMultisampleFBO)) {
target->bind(useMultisampleFBO);
#ifdef SK_DEBUG
// don't do this check in Chromium -- this is causing
// lots of repeated command buffer flushes when the compositor is
// rendering with Ganesh, which is really slow; even too slow for
// Debug mode.
// Also don't do this when we know glCheckFramebufferStatus() may have side effects.
if (!this->glCaps().skipErrorChecks() &&
!this->glCaps().rebindColorAttachmentAfterCheckFramebufferStatus()) {
GrGLenum status;
GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (status != GR_GL_FRAMEBUFFER_COMPLETE) {
SkDebugf("GrGLGpu::flushRenderTargetNoColorWrites glCheckFramebufferStatus %x\n",
status);
}
}
#endif
fHWBoundRenderTargetUniqueID = rtID;
fHWBoundFramebufferIsMSAA = useMultisampleFBO;
this->flushViewport(SkIRect::MakeSize(target->dimensions()),
target->height(),
kTopLeft_GrSurfaceOrigin); // the origin is irrelevant in this case
}
if (this->caps()->workarounds().force_update_scissor_state_when_binding_fbo0) {
// The driver forgets the correct scissor state when using FBO 0.
if (!fHWScissorSettings.fRect.isInvalid()) {
const GrNativeRect& r = fHWScissorSettings.fRect;
GL_CALL(Scissor(r.fX, r.fY, r.fWidth, r.fHeight));
}
if (fHWScissorSettings.fEnabled == kYes_TriState) {
GL_CALL(Disable(GR_GL_SCISSOR_TEST));
GL_CALL(Enable(GR_GL_SCISSOR_TEST));
} else if (fHWScissorSettings.fEnabled == kNo_TriState) {
GL_CALL(Enable(GR_GL_SCISSOR_TEST));
GL_CALL(Disable(GR_GL_SCISSOR_TEST));
}
}
if (this->glCaps().srgbWriteControl()) {
this->flushFramebufferSRGB(this->caps()->isFormatSRGB(target->backendFormat()));
}
if (this->glCaps().shouldQueryImplementationReadSupport(target->format())) {
GrGLint format;
GrGLint type;
GR_GL_GetIntegerv(this->glInterface(), GR_GL_IMPLEMENTATION_COLOR_READ_FORMAT, &format);
GR_GL_GetIntegerv(this->glInterface(), GR_GL_IMPLEMENTATION_COLOR_READ_TYPE, &type);
this->glCaps().didQueryImplementationReadSupport(target->format(), format, type);
}
}
void GrGLGpu::flushFramebufferSRGB(bool enable) {
if (enable && kYes_TriState != fHWSRGBFramebuffer) {
GL_CALL(Enable(GR_GL_FRAMEBUFFER_SRGB));
fHWSRGBFramebuffer = kYes_TriState;
} else if (!enable && kNo_TriState != fHWSRGBFramebuffer) {
GL_CALL(Disable(GR_GL_FRAMEBUFFER_SRGB));
fHWSRGBFramebuffer = kNo_TriState;
}
}
GrGLenum GrGLGpu::prepareToDraw(GrPrimitiveType primitiveType) {
fStats.incNumDraws();
if (this->glCaps().requiresCullFaceEnableDisableWhenDrawingLinesAfterNonLines() &&
GrIsPrimTypeLines(primitiveType) && !GrIsPrimTypeLines(fLastPrimitiveType)) {
GL_CALL(Enable(GR_GL_CULL_FACE));
GL_CALL(Disable(GR_GL_CULL_FACE));
}
fLastPrimitiveType = primitiveType;
switch (primitiveType) {
case GrPrimitiveType::kTriangles:
return GR_GL_TRIANGLES;
case GrPrimitiveType::kTriangleStrip:
return GR_GL_TRIANGLE_STRIP;
case GrPrimitiveType::kPoints:
return GR_GL_POINTS;
case GrPrimitiveType::kLines:
return GR_GL_LINES;
case GrPrimitiveType::kLineStrip:
return GR_GL_LINE_STRIP;
}
SK_ABORT("invalid GrPrimitiveType");
}
void GrGLGpu::onResolveRenderTarget(GrRenderTarget* target, const SkIRect& resolveRect) {
auto glRT = static_cast<GrGLRenderTarget*>(target);
if (this->glCaps().framebufferResolvesMustBeFullSize()) {
this->resolveRenderFBOs(glRT, SkIRect::MakeSize(glRT->dimensions()),
ResolveDirection::kMSAAToSingle);
} else {
this->resolveRenderFBOs(glRT, resolveRect, ResolveDirection::kMSAAToSingle);
}
}
void GrGLGpu::resolveRenderFBOs(GrGLRenderTarget* rt, const SkIRect& resolveRect,
ResolveDirection resolveDirection,
bool invalidateReadBufferAfterBlit) {
this->handleDirtyContext();
rt->bindForResolve(resolveDirection);
const GrGLCaps& caps = this->glCaps();
// make sure we go through flushRenderTarget() since we've modified
// the bound DRAW FBO ID.
fHWBoundRenderTargetUniqueID.makeInvalid();
if (GrGLCaps::kES_Apple_MSFBOType == caps.msFBOType()) {
// The Apple extension doesn't support blitting from single to multisample.
SkASSERT(resolveDirection != ResolveDirection::kSingleToMSAA);
SkASSERT(resolveRect == SkIRect::MakeSize(rt->dimensions()));
// Apple's extension uses the scissor as the blit bounds.
// Passing in kTopLeft_GrSurfaceOrigin will make sure no transformation of the rect
// happens inside flushScissor since resolveRect is already in native device coordinates.
GrScissorState scissor(rt->dimensions());
SkAssertResult(scissor.set(resolveRect));
this->flushScissor(scissor, rt->height(), kTopLeft_GrSurfaceOrigin);
this->disableWindowRectangles();
GL_CALL(ResolveMultisampleFramebuffer());
} else {
SkASSERT(!caps.framebufferResolvesMustBeFullSize() ||
resolveRect == SkIRect::MakeSize(rt->dimensions()));
int l = resolveRect.x();
int b = resolveRect.y();
int r = resolveRect.x() + resolveRect.width();
int t = resolveRect.y() + resolveRect.height();
// BlitFrameBuffer respects the scissor, so disable it.
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
GL_CALL(BlitFramebuffer(l, b, r, t, l, b, r, t, GR_GL_COLOR_BUFFER_BIT, GR_GL_NEAREST));
}
if (caps.invalidateFBType() != GrGLCaps::kNone_InvalidateFBType &&
invalidateReadBufferAfterBlit) {
// Invalidate the read FBO attachment after the blit, in hopes that this allows the driver
// to perform tiling optimizations.
bool readBufferIsMSAA = resolveDirection == ResolveDirection::kMSAAToSingle;
GrGLenum colorDiscardAttachment = rt->isFBO0(readBufferIsMSAA) ? GR_GL_COLOR
: GR_GL_COLOR_ATTACHMENT0;
if (caps.invalidateFBType() == GrGLCaps::kInvalidate_InvalidateFBType) {
GL_CALL(InvalidateFramebuffer(GR_GL_READ_FRAMEBUFFER, 1, &colorDiscardAttachment));
} else {
SkASSERT(caps.invalidateFBType() == GrGLCaps::kDiscard_InvalidateFBType);
// glDiscardFramebuffer only accepts GL_FRAMEBUFFER.
rt->bind(readBufferIsMSAA);
GL_CALL(DiscardFramebuffer(GR_GL_FRAMEBUFFER, 1, &colorDiscardAttachment));
}
}
}
namespace {
GrGLenum gr_to_gl_stencil_op(GrStencilOp op) {
static const GrGLenum gTable[kGrStencilOpCount] = {
GR_GL_KEEP, // kKeep
GR_GL_ZERO, // kZero
GR_GL_REPLACE, // kReplace
GR_GL_INVERT, // kInvert
GR_GL_INCR_WRAP, // kIncWrap
GR_GL_DECR_WRAP, // kDecWrap
GR_GL_INCR, // kIncClamp
GR_GL_DECR, // kDecClamp
};
static_assert(0 == (int)GrStencilOp::kKeep);
static_assert(1 == (int)GrStencilOp::kZero);
static_assert(2 == (int)GrStencilOp::kReplace);
static_assert(3 == (int)GrStencilOp::kInvert);
static_assert(4 == (int)GrStencilOp::kIncWrap);
static_assert(5 == (int)GrStencilOp::kDecWrap);
static_assert(6 == (int)GrStencilOp::kIncClamp);
static_assert(7 == (int)GrStencilOp::kDecClamp);
SkASSERT(op < (GrStencilOp)kGrStencilOpCount);
return gTable[(int)op];
}
void set_gl_stencil(const GrGLInterface* gl,
const GrStencilSettings::Face& face,
GrGLenum glFace) {
GrGLenum glFunc = GrToGLStencilFunc(face.fTest);
GrGLenum glFailOp = gr_to_gl_stencil_op(face.fFailOp);
GrGLenum glPassOp = gr_to_gl_stencil_op(face.fPassOp);
GrGLint ref = face.fRef;
GrGLint mask = face.fTestMask;
GrGLint writeMask = face.fWriteMask;
if (GR_GL_FRONT_AND_BACK == glFace) {
// we call the combined func just in case separate stencil is not
// supported.
GR_GL_CALL(gl, StencilFunc(glFunc, ref, mask));
GR_GL_CALL(gl, StencilMask(writeMask));
GR_GL_CALL(gl, StencilOp(glFailOp, GR_GL_KEEP, glPassOp));
} else {
GR_GL_CALL(gl, StencilFuncSeparate(glFace, glFunc, ref, mask));
GR_GL_CALL(gl, StencilMaskSeparate(glFace, writeMask));
GR_GL_CALL(gl, StencilOpSeparate(glFace, glFailOp, GR_GL_KEEP, glPassOp));
}
}
} // namespace
void GrGLGpu::flushStencil(const GrStencilSettings& stencilSettings, GrSurfaceOrigin origin) {
if (stencilSettings.isDisabled()) {
this->disableStencil();
} else if (fHWStencilSettings != stencilSettings ||
(stencilSettings.isTwoSided() && fHWStencilOrigin != origin)) {
if (kYes_TriState != fHWStencilTestEnabled) {
GL_CALL(Enable(GR_GL_STENCIL_TEST));
fHWStencilTestEnabled = kYes_TriState;
}
if (!stencilSettings.isTwoSided()) {
set_gl_stencil(this->glInterface(), stencilSettings.singleSidedFace(),
GR_GL_FRONT_AND_BACK);
} else {
set_gl_stencil(this->glInterface(), stencilSettings.postOriginCWFace(origin),
GR_GL_FRONT);
set_gl_stencil(this->glInterface(), stencilSettings.postOriginCCWFace(origin),
GR_GL_BACK);
}
fHWStencilSettings = stencilSettings;
fHWStencilOrigin = origin;
}
}
void GrGLGpu::disableStencil() {
if (kNo_TriState != fHWStencilTestEnabled) {
GL_CALL(Disable(GR_GL_STENCIL_TEST));
fHWStencilTestEnabled = kNo_TriState;
fHWStencilSettings.invalidate();
}
}
void GrGLGpu::flushConservativeRasterState(bool enabled) {
if (this->caps()->conservativeRasterSupport()) {
if (enabled) {
if (kYes_TriState != fHWConservativeRasterEnabled) {
GL_CALL(Enable(GR_GL_CONSERVATIVE_RASTERIZATION));
fHWConservativeRasterEnabled = kYes_TriState;
}
} else {
if (kNo_TriState != fHWConservativeRasterEnabled) {
GL_CALL(Disable(GR_GL_CONSERVATIVE_RASTERIZATION));
fHWConservativeRasterEnabled = kNo_TriState;
}
}
}
}
void GrGLGpu::flushWireframeState(bool enabled) {
if (this->caps()->wireframeSupport()) {
if (this->caps()->wireframeMode() || enabled) {
if (kYes_TriState != fHWWireframeEnabled) {
GL_CALL(PolygonMode(GR_GL_FRONT_AND_BACK, GR_GL_LINE));
fHWWireframeEnabled = kYes_TriState;
}
} else {
if (kNo_TriState != fHWWireframeEnabled) {
GL_CALL(PolygonMode(GR_GL_FRONT_AND_BACK, GR_GL_FILL));
fHWWireframeEnabled = kNo_TriState;
}
}
}
}
void GrGLGpu::flushBlendAndColorWrite(const skgpu::BlendInfo& blendInfo,
const skgpu::Swizzle& swizzle) {
if (this->glCaps().neverDisableColorWrites() && !blendInfo.fWritesColor) {
// We need to work around a driver bug by using a blend state that preserves the dst color,
// rather than disabling color writes.
skgpu::BlendInfo preserveDstBlend;
preserveDstBlend.fSrcBlend = skgpu::BlendCoeff::kZero;
preserveDstBlend.fDstBlend = skgpu::BlendCoeff::kOne;
this->flushBlendAndColorWrite(preserveDstBlend, swizzle);
return;
}
skgpu::BlendEquation equation = blendInfo.fEquation;
skgpu::BlendCoeff srcCoeff = blendInfo.fSrcBlend;
skgpu::BlendCoeff dstCoeff = blendInfo.fDstBlend;
// Any optimization to disable blending should have already been applied and
// tweaked the equation to "add "or "subtract", and the coeffs to (1, 0).
bool blendOff = skgpu::BlendShouldDisable(equation, srcCoeff, dstCoeff) ||
!blendInfo.fWritesColor;
if (blendOff) {
if (kNo_TriState != fHWBlendState.fEnabled) {
GL_CALL(Disable(GR_GL_BLEND));
// Workaround for the ARM KHR_blend_equation_advanced disable flags issue
// https://code.google.com/p/skia/issues/detail?id=3943
if (this->ctxInfo().vendor() == GrGLVendor::kARM &&
skgpu::BlendEquationIsAdvanced(fHWBlendState.fEquation)) {
SkASSERT(this->caps()->advancedBlendEquationSupport());
// Set to any basic blending equation.
skgpu::BlendEquation blendEquation = skgpu::BlendEquation::kAdd;
GL_CALL(BlendEquation(gXfermodeEquation2Blend[(int)blendEquation]));
fHWBlendState.fEquation = blendEquation;
}
// Workaround for Adreno 5xx BlendFunc bug. See crbug.com/1241134.
// We must also check to see if the blend coeffs are invalid because the client may have
// reset our gl state and thus we will have forgotten if the previous use was a coeff
// that referenced src2.
if (this->glCaps().mustResetBlendFuncBetweenDualSourceAndDisable() &&
(skgpu::BlendCoeffRefsSrc2(fHWBlendState.fSrcCoeff) ||
skgpu::BlendCoeffRefsSrc2(fHWBlendState.fDstCoeff) ||
fHWBlendState.fSrcCoeff == skgpu::BlendCoeff::kIllegal ||
fHWBlendState.fDstCoeff == skgpu::BlendCoeff::kIllegal)) {
// We just reset the blend func to anything that doesn't reference src2
GL_CALL(BlendFunc(GR_GL_ONE, GR_GL_ZERO));
fHWBlendState.fSrcCoeff = skgpu::BlendCoeff::kOne;
fHWBlendState.fDstCoeff = skgpu::BlendCoeff::kZero;
}
fHWBlendState.fEnabled = kNo_TriState;
}
} else {
if (kYes_TriState != fHWBlendState.fEnabled) {
GL_CALL(Enable(GR_GL_BLEND));
fHWBlendState.fEnabled = kYes_TriState;
}
if (fHWBlendState.fEquation != equation) {
GL_CALL(BlendEquation(gXfermodeEquation2Blend[(int)equation]));
fHWBlendState.fEquation = equation;
}
if (skgpu::BlendEquationIsAdvanced(equation)) {
SkASSERT(this->caps()->advancedBlendEquationSupport());
this->flushColorWrite(blendInfo.fWritesColor);
// Advanced equations have no other blend state.
return;
}
if (fHWBlendState.fSrcCoeff != srcCoeff || fHWBlendState.fDstCoeff != dstCoeff) {
GL_CALL(BlendFunc(gXfermodeCoeff2Blend[(int)srcCoeff],
gXfermodeCoeff2Blend[(int)dstCoeff]));
fHWBlendState.fSrcCoeff = srcCoeff;
fHWBlendState.fDstCoeff = dstCoeff;
}
if (skgpu::BlendCoeffRefsConstant(srcCoeff) || skgpu::BlendCoeffRefsConstant(dstCoeff)) {
SkPMColor4f blendConst = swizzle.applyTo(blendInfo.fBlendConstant);
if (!fHWBlendState.fConstColorValid || fHWBlendState.fConstColor != blendConst) {
GL_CALL(BlendColor(blendConst.fR, blendConst.fG, blendConst.fB, blendConst.fA));
fHWBlendState.fConstColor = blendConst;
fHWBlendState.fConstColorValid = true;
}
}
}
this->flushColorWrite(blendInfo.fWritesColor);
}
void GrGLGpu::bindTexture(int unitIdx, GrSamplerState samplerState, const skgpu::Swizzle& swizzle,
GrGLTexture* texture) {
SkASSERT(texture);
#ifdef SK_DEBUG
if (!this->caps()->npotTextureTileSupport()) {
if (samplerState.isRepeatedX()) {
const int w = texture->width();
SkASSERT(SkIsPow2(w));
}
if (samplerState.isRepeatedY()) {
const int h = texture->height();
SkASSERT(SkIsPow2(h));
}
}
#endif
GrGpuResource::UniqueID textureID = texture->uniqueID();
GrGLenum target = texture->target();
if (fHWTextureUnitBindings[unitIdx].boundID(target) != textureID) {
this->setTextureUnit(unitIdx);
GL_CALL(BindTexture(target, texture->textureID()));
fHWTextureUnitBindings[unitIdx].setBoundID(target, textureID);
}
if (samplerState.mipmapped() == skgpu::Mipmapped::kYes) {
if (!this->caps()->mipmapSupport() || texture->mipmapped() == skgpu::Mipmapped::kNo) {
// We should have caught this already.
SkASSERT(!samplerState.isAniso());
samplerState = GrSamplerState(samplerState.wrapModeX(),
samplerState.wrapModeY(),
samplerState.filter(),
GrSamplerState::MipmapMode::kNone);
} else {
SkASSERT(!texture->mipmapsAreDirty());
}
}
auto timestamp = texture->parameters()->resetTimestamp();
bool setAll = timestamp < fResetTimestampForTextureParameters;
const GrGLTextureParameters::SamplerOverriddenState* samplerStateToRecord = nullptr;
GrGLTextureParameters::SamplerOverriddenState newSamplerState;
if (this->glCaps().useSamplerObjects()) {
fSamplerObjectCache->bindSampler(unitIdx, samplerState);
if (this->glCaps().mustSetAnyTexParameterToEnableMipmapping()) {
if (samplerState.mipmapped() == skgpu::Mipmapped::kYes) {
GrGLenum minFilter = filter_to_gl_min_filter(samplerState.filter(),
samplerState.mipmapMode());
const GrGLTextureParameters::SamplerOverriddenState& oldSamplerState =
texture->parameters()->samplerOverriddenState();
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, minFilter));
newSamplerState = oldSamplerState;
newSamplerState.fMinFilter = minFilter;
samplerStateToRecord = &newSamplerState;
}
}
} else {
if (fSamplerObjectCache) {
fSamplerObjectCache->unbindSampler(unitIdx);
}
const GrGLTextureParameters::SamplerOverriddenState& oldSamplerState =
texture->parameters()->samplerOverriddenState();
samplerStateToRecord = &newSamplerState;
newSamplerState.fMinFilter = filter_to_gl_min_filter(samplerState.filter(),
samplerState.mipmapMode());
newSamplerState.fMagFilter = filter_to_gl_mag_filter(samplerState.filter());
newSamplerState.fWrapS = wrap_mode_to_gl_wrap(samplerState.wrapModeX(), this->glCaps());
newSamplerState.fWrapT = wrap_mode_to_gl_wrap(samplerState.wrapModeY(), this->glCaps());
newSamplerState.fMaxAniso = std::min(static_cast<GrGLfloat>(samplerState.maxAniso()),
this->glCaps().maxTextureMaxAnisotropy());
// These are the OpenGL default values.
newSamplerState.fMinLOD = -1000.f;
newSamplerState.fMaxLOD = 1000.f;
if (setAll || newSamplerState.fMagFilter != oldSamplerState.fMagFilter) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MAG_FILTER, newSamplerState.fMagFilter));
}
if (setAll || newSamplerState.fMinFilter != oldSamplerState.fMinFilter) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, newSamplerState.fMinFilter));
}
if (this->glCaps().mipmapLodControlSupport()) {
if (setAll || newSamplerState.fMinLOD != oldSamplerState.fMinLOD) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameterf(target, GR_GL_TEXTURE_MIN_LOD, newSamplerState.fMinLOD));
}
if (setAll || newSamplerState.fMaxLOD != oldSamplerState.fMaxLOD) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameterf(target, GR_GL_TEXTURE_MAX_LOD, newSamplerState.fMaxLOD));
}
}
if (setAll || newSamplerState.fWrapS != oldSamplerState.fWrapS) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_WRAP_S, newSamplerState.fWrapS));
}
if (setAll || newSamplerState.fWrapT != oldSamplerState.fWrapT) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_WRAP_T, newSamplerState.fWrapT));
}
if (this->glCaps().clampToBorderSupport()) {
// Make sure the border color is transparent black (the default)
if (setAll || oldSamplerState.fBorderColorInvalid) {
this->setTextureUnit(unitIdx);
static const GrGLfloat kTransparentBlack[4] = {0.f, 0.f, 0.f, 0.f};
GL_CALL(TexParameterfv(target, GR_GL_TEXTURE_BORDER_COLOR, kTransparentBlack));
}
}
if (this->caps()->anisoSupport()) {
if (setAll || oldSamplerState.fMaxAniso != newSamplerState.fMaxAniso) {
GL_CALL(TexParameterf(target,
GR_GL_TEXTURE_MAX_ANISOTROPY,
newSamplerState.fMaxAniso));
}
}
}
GrGLTextureParameters::NonsamplerState newNonsamplerState;
newNonsamplerState.fBaseMipMapLevel = 0;
newNonsamplerState.fMaxMipmapLevel = texture->maxMipmapLevel();
newNonsamplerState.fSwizzleIsRGBA = true;
const GrGLTextureParameters::NonsamplerState& oldNonsamplerState =
texture->parameters()->nonsamplerState();
if (this->glCaps().textureSwizzleSupport()) {
if (setAll || !oldNonsamplerState.fSwizzleIsRGBA) {
static constexpr GrGLenum kRGBA[4] {
GR_GL_RED,
GR_GL_GREEN,
GR_GL_BLUE,
GR_GL_ALPHA
};
this->setTextureUnit(unitIdx);
if (GR_IS_GR_GL(this->glStandard())) {
static_assert(sizeof(kRGBA[0]) == sizeof(GrGLint));
GL_CALL(TexParameteriv(target, GR_GL_TEXTURE_SWIZZLE_RGBA,
reinterpret_cast<const GrGLint*>(kRGBA)));
} else if (GR_IS_GR_GL_ES(this->glStandard())) {
// ES3 added swizzle support but not GL_TEXTURE_SWIZZLE_RGBA.
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_R, kRGBA[0]));
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_G, kRGBA[1]));
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_B, kRGBA[2]));
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_SWIZZLE_A, kRGBA[3]));
}
}
}
// These are not supported in ES2 contexts
if (this->glCaps().mipmapLevelControlSupport() &&
(texture->textureType() != GrTextureType::kExternal ||
!this->glCaps().dontSetBaseOrMaxLevelForExternalTextures())) {
if (newNonsamplerState.fBaseMipMapLevel != oldNonsamplerState.fBaseMipMapLevel) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_BASE_LEVEL,
newNonsamplerState.fBaseMipMapLevel));
}
if (newNonsamplerState.fMaxMipmapLevel != oldNonsamplerState.fMaxMipmapLevel) {
this->setTextureUnit(unitIdx);
GL_CALL(TexParameteri(target, GR_GL_TEXTURE_MAX_LEVEL,
newNonsamplerState.fMaxMipmapLevel));
}
}
texture->parameters()->set(samplerStateToRecord, newNonsamplerState,
fResetTimestampForTextureParameters);
}
void GrGLGpu::onResetTextureBindings() {
static constexpr GrGLenum kTargets[] = {GR_GL_TEXTURE_2D, GR_GL_TEXTURE_RECTANGLE,
GR_GL_TEXTURE_EXTERNAL};
for (int i = 0; i < this->numTextureUnits(); ++i) {
this->setTextureUnit(i);
for (auto target : kTargets) {
if (fHWTextureUnitBindings[i].hasBeenModified(target)) {
GL_CALL(BindTexture(target, 0));
}
}
fHWTextureUnitBindings[i].invalidateAllTargets(true);
}
}
void GrGLGpu::flushColorWrite(bool writeColor) {
if (!writeColor) {
if (kNo_TriState != fHWWriteToColor) {
GL_CALL(ColorMask(GR_GL_FALSE, GR_GL_FALSE,
GR_GL_FALSE, GR_GL_FALSE));
fHWWriteToColor = kNo_TriState;
}
} else {
if (kYes_TriState != fHWWriteToColor) {
GL_CALL(ColorMask(GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE, GR_GL_TRUE));
fHWWriteToColor = kYes_TriState;
}
}
}
void GrGLGpu::flushClearColor(std::array<float, 4> color) {
GrGLfloat r = color[0], g = color[1], b = color[2], a = color[3];
if (this->glCaps().clearToBoundaryValuesIsBroken() &&
(1 == r || 0 == r) && (1 == g || 0 == g) && (1 == b || 0 == b) && (1 == a || 0 == a)) {
static const GrGLfloat safeAlpha1 = nextafter(1.f, 2.f);
static const GrGLfloat safeAlpha0 = nextafter(0.f, -1.f);
a = (1 == a) ? safeAlpha1 : safeAlpha0;
}
if (r != fHWClearColor[0] || g != fHWClearColor[1] ||
b != fHWClearColor[2] || a != fHWClearColor[3]) {
GL_CALL(ClearColor(r, g, b, a));
fHWClearColor[0] = r;
fHWClearColor[1] = g;
fHWClearColor[2] = b;
fHWClearColor[3] = a;
}
}
void GrGLGpu::setTextureUnit(int unit) {
SkASSERT(unit >= 0 && unit < this->numTextureUnits());
if (unit != fHWActiveTextureUnitIdx) {
GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + unit));
fHWActiveTextureUnitIdx = unit;
}
}
void GrGLGpu::bindTextureToScratchUnit(GrGLenum target, GrGLint textureID) {
// Bind the last texture unit since it is the least likely to be used by GrGLProgram.
int lastUnitIdx = this->numTextureUnits() - 1;
if (lastUnitIdx != fHWActiveTextureUnitIdx) {
GL_CALL(ActiveTexture(GR_GL_TEXTURE0 + lastUnitIdx));
fHWActiveTextureUnitIdx = lastUnitIdx;
}
// Clear out the this field so that if a GrGLProgram does use this unit it will rebind the
// correct texture.
fHWTextureUnitBindings[lastUnitIdx].invalidateForScratchUse(target);
GL_CALL(BindTexture(target, textureID));
}
// Determines whether glBlitFramebuffer could be used between src and dst by onCopySurface.
static inline bool can_blit_framebuffer_for_copy_surface(const GrSurface* dst,
const GrSurface* src,
const SkIRect& srcRect,
const SkIRect& dstRect,
const GrGLCaps& caps) {
int dstSampleCnt = 0;
int srcSampleCnt = 0;
if (const GrRenderTarget* rt = dst->asRenderTarget()) {
dstSampleCnt = rt->numSamples();
}
if (const GrRenderTarget* rt = src->asRenderTarget()) {
srcSampleCnt = rt->numSamples();
}
SkASSERT((dstSampleCnt > 0) == SkToBool(dst->asRenderTarget()));
SkASSERT((srcSampleCnt > 0) == SkToBool(src->asRenderTarget()));
GrGLFormat dstFormat = GrBackendFormats::AsGLFormat(dst->backendFormat());
GrGLFormat srcFormat = GrBackendFormats::AsGLFormat(src->backendFormat());
const GrGLTexture* dstTex = static_cast<const GrGLTexture*>(dst->asTexture());
const GrGLTexture* srcTex = static_cast<const GrGLTexture*>(src->asTexture());
GrTextureType dstTexType;
GrTextureType* dstTexTypePtr = nullptr;
GrTextureType srcTexType;
GrTextureType* srcTexTypePtr = nullptr;
if (dstTex) {
dstTexType = dstTex->textureType();
dstTexTypePtr = &dstTexType;
}
if (srcTex) {
srcTexType = srcTex->textureType();
srcTexTypePtr = &srcTexType;
}
return caps.canCopyAsBlit(dstFormat, dstSampleCnt, dstTexTypePtr,
srcFormat, srcSampleCnt, srcTexTypePtr,
src->getBoundsRect(), true, srcRect, dstRect);
}
static bool rt_has_msaa_render_buffer(const GrGLRenderTarget* rt, const GrGLCaps& glCaps) {
// A RT has a separate MSAA renderbuffer if:
// 1) It's multisampled
// 2) We're using an extension with separate MSAA renderbuffers
// 3) It's not FBO 0, which is special and always auto-resolves
return rt->numSamples() > 1 && glCaps.usesMSAARenderBuffers() && !rt->isFBO0(true/*msaa*/);
}
static inline bool can_copy_texsubimage(const GrSurface* dst, const GrSurface* src,
const GrGLCaps& caps) {
const GrGLRenderTarget* dstRT = static_cast<const GrGLRenderTarget*>(dst->asRenderTarget());
const GrGLRenderTarget* srcRT = static_cast<const GrGLRenderTarget*>(src->asRenderTarget());
const GrGLTexture* dstTex = static_cast<const GrGLTexture*>(dst->asTexture());
const GrGLTexture* srcTex = static_cast<const GrGLTexture*>(src->asTexture());
bool dstHasMSAARenderBuffer = dstRT ? rt_has_msaa_render_buffer(dstRT, caps) : false;
bool srcHasMSAARenderBuffer = srcRT ? rt_has_msaa_render_buffer(srcRT, caps) : false;
GrGLFormat dstFormat = GrBackendFormats::AsGLFormat(dst->backendFormat());
GrGLFormat srcFormat = GrBackendFormats::AsGLFormat(src->backendFormat());
GrTextureType dstTexType;
GrTextureType* dstTexTypePtr = nullptr;
GrTextureType srcTexType;
GrTextureType* srcTexTypePtr = nullptr;
if (dstTex) {
dstTexType = dstTex->textureType();
dstTexTypePtr = &dstTexType;
}
if (srcTex) {
srcTexType = srcTex->textureType();
srcTexTypePtr = &srcTexType;
}
return caps.canCopyTexSubImage(dstFormat, dstHasMSAARenderBuffer, dstTexTypePtr,
srcFormat, srcHasMSAARenderBuffer, srcTexTypePtr);
}
void GrGLGpu::bindSurfaceFBOForPixelOps(GrSurface* surface, int mipLevel, GrGLenum fboTarget,
TempFBOTarget tempFBOTarget) {
GrGLRenderTarget* rt = static_cast<GrGLRenderTarget*>(surface->asRenderTarget());
if (!rt || mipLevel > 0) {
SkASSERT(surface->asTexture());
GrGLTexture* texture = static_cast<GrGLTexture*>(surface->asTexture());
GrGLuint texID = texture->textureID();
GrGLenum target = texture->target();
GrGLuint* tempFBOID;
tempFBOID = kSrc_TempFBOTarget == tempFBOTarget ? &fTempSrcFBOID : &fTempDstFBOID;
if (0 == *tempFBOID) {
GR_GL_CALL(this->glInterface(), GenFramebuffers(1, tempFBOID));
}
this->bindFramebuffer(fboTarget, *tempFBOID);
GR_GL_CALL(
this->glInterface(),
FramebufferTexture2D(fboTarget, GR_GL_COLOR_ATTACHMENT0, target, texID, mipLevel));
if (mipLevel == 0) {
texture->baseLevelWasBoundToFBO();
}
} else {
rt->bindForPixelOps(fboTarget);
}
}
void GrGLGpu::unbindSurfaceFBOForPixelOps(GrSurface* surface, int mipLevel, GrGLenum fboTarget) {
// bindSurfaceFBOForPixelOps temporarily binds textures that are not render targets to
if (mipLevel > 0 || !surface->asRenderTarget()) {
SkASSERT(surface->asTexture());
GrGLenum textureTarget = static_cast<GrGLTexture*>(surface->asTexture())->target();
GR_GL_CALL(this->glInterface(), FramebufferTexture2D(fboTarget,
GR_GL_COLOR_ATTACHMENT0,
textureTarget,
0,
0));
}
}
void GrGLGpu::onFBOChanged() {
if (this->caps()->workarounds().flush_on_framebuffer_change) {
this->flush(FlushType::kForce);
}
if (fHasUnflushedQueries &&
this->caps()->workarounds().flush_queries_before_deleting_or_unbinding_fbo) {
this->forcefullyFlushQueries();
}
#ifdef SK_DEBUG
if (fIsExecutingCommandBuffer_DebugOnly) {
SkDebugf("WARNING: GL FBO binding changed while executing a command buffer. "
"This will severely hurt performance.\n");
}
#endif
}
void GrGLGpu::bindFramebuffer(GrGLenum target, GrGLuint fboid) {
GL_CALL(BindFramebuffer(target, fboid));
if (target == GR_GL_FRAMEBUFFER || target == GR_GL_DRAW_FRAMEBUFFER) {
fBoundDrawFramebuffer = fboid;
}
this->onFBOChanged();
}
void GrGLGpu::deleteFramebuffer(GrGLuint fboid) {
// We're relying on the GL state shadowing being correct in the workaround code below so we
// need to handle a dirty context.
this->handleDirtyContext();
if (fHasUnflushedQueries &&
this->caps()->workarounds().flush_queries_before_deleting_or_unbinding_fbo) {
this->forcefullyFlushQueries();
}
if (fboid == fBoundDrawFramebuffer) {
if (this->caps()->workarounds().unbind_attachments_on_bound_render_fbo_delete) {
// This workaround only applies to deleting currently bound framebuffers
// on Adreno 420. Because this is a somewhat rare case, instead of
// tracking all the attachments of every framebuffer instead just always
// unbind all attachments.
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER, 0));
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, 0));
}
if (this->caps()->workarounds().ensure_previous_framebuffer_not_deleted) {
// Some drivers keep an internal reference to the previously bound
// framebuffer, so make sure it isn't the one being deleted.
this->bindFramebuffer(GR_GL_FRAMEBUFFER, 0);
}
}
GL_CALL(DeleteFramebuffers(1, &fboid));
// Deleting the currently bound framebuffer rebinds to 0.
if (fboid == fBoundDrawFramebuffer) {
this->onFBOChanged();
}
}
bool GrGLGpu::onCopySurface(GrSurface* dst, const SkIRect& dstRect,
GrSurface* src, const SkIRect& srcRect,
GrSamplerState::Filter filter) {
// Don't prefer copying as a draw if the dst doesn't already have a FBO object.
// This implicitly handles this->glCaps().useDrawInsteadOfAllRenderTargetWrites().
bool preferCopy = SkToBool(dst->asRenderTarget());
bool scalingCopy = dstRect.size() != srcRect.size();
auto dstFormat = GrBackendFormats::AsGLFormat(dst->backendFormat());
if (preferCopy &&
this->glCaps().canCopyAsDraw(dstFormat, SkToBool(src->asTexture()), scalingCopy)) {
GrRenderTarget* dstRT = dst->asRenderTarget();
bool drawToMultisampleFBO = dstRT && dstRT->numSamples() > 1;
if (this->copySurfaceAsDraw(dst, drawToMultisampleFBO, src, srcRect, dstRect, filter)) {
return true;
}
}
// Prefer copying as with glCopyTexSubImage when the dimensions are the same.
if (!scalingCopy && can_copy_texsubimage(dst, src, this->glCaps())) {
this->copySurfaceAsCopyTexSubImage(dst, src, srcRect, dstRect.topLeft());
return true;
}
if (can_blit_framebuffer_for_copy_surface(dst, src, srcRect, dstRect, this->glCaps())) {
return this->copySurfaceAsBlitFramebuffer(dst, src, srcRect, dstRect, filter);
}
if (!preferCopy &&
this->glCaps().canCopyAsDraw(dstFormat, SkToBool(src->asTexture()), scalingCopy)) {
GrRenderTarget* dstRT = dst->asRenderTarget();
bool drawToMultisampleFBO = dstRT && dstRT->numSamples() > 1;
if (this->copySurfaceAsDraw(dst, drawToMultisampleFBO, src, srcRect, dstRect, filter)) {
return true;
}
}
return false;
}
bool GrGLGpu::createCopyProgram(GrTexture* srcTex) {
TRACE_EVENT0("skia.gpu", TRACE_FUNC);
int progIdx = TextureToCopyProgramIdx(srcTex);
const GrShaderCaps* shaderCaps = this->caps()->shaderCaps();
SkSLType samplerType = SkSLCombinedSamplerTypeForTextureType(srcTex->textureType());
if (!fCopyProgramArrayBuffer) {
static const GrGLfloat vdata[] = {
0, 0,
0, 1,
1, 0,
1, 1
};
fCopyProgramArrayBuffer = GrGLBuffer::Make(this,
sizeof(vdata),
GrGpuBufferType::kVertex,
kStatic_GrAccessPattern);
if (fCopyProgramArrayBuffer) {
fCopyProgramArrayBuffer->updateData(
vdata, /*offset=*/0, sizeof(vdata), /*preserve=*/false);
}
}
if (!fCopyProgramArrayBuffer) {
return false;
}
SkASSERT(!fCopyPrograms[progIdx].fProgram);
GL_CALL_RET(fCopyPrograms[progIdx].fProgram, CreateProgram());
if (!fCopyPrograms[progIdx].fProgram) {
return false;
}
GrShaderVar aVertex("a_vertex", SkSLType::kHalf2, GrShaderVar::TypeModifier::In);
GrShaderVar uTexCoordXform("u_texCoordXform", SkSLType::kHalf4,
GrShaderVar::TypeModifier::Uniform);
GrShaderVar uPosXform("u_posXform", SkSLType::kHalf4, GrShaderVar::TypeModifier::Uniform);
GrShaderVar uTexture("u_texture", samplerType);
GrShaderVar vTexCoord("v_texCoord", SkSLType::kHalf2, GrShaderVar::TypeModifier::Out);
GrShaderVar oFragColor("o_FragColor", SkSLType::kHalf4, GrShaderVar::TypeModifier::Out);
SkString vshaderTxt;
if (shaderCaps->fNoPerspectiveInterpolationSupport) {
if (const char* extension = shaderCaps->noperspectiveInterpolationExtensionString()) {
vshaderTxt.appendf("#extension %s : require\n", extension);
}
vTexCoord.addModifier("noperspective");
}
aVertex.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
uTexCoordXform.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
uPosXform.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
vTexCoord.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
vshaderTxt.append(
// Copy Program VS
"void main() {"
"v_texCoord = half2(a_vertex.xy * u_texCoordXform.xy + u_texCoordXform.zw);"
"sk_Position.xy = a_vertex * u_posXform.xy + u_posXform.zw;"
"sk_Position.zw = half2(0, 1);"
"}"
);
SkString fshaderTxt;
if (shaderCaps->fNoPerspectiveInterpolationSupport) {
if (const char* extension = shaderCaps->noperspectiveInterpolationExtensionString()) {
fshaderTxt.appendf("#extension %s : require\n", extension);
}
}
vTexCoord.setTypeModifier(GrShaderVar::TypeModifier::In);
vTexCoord.appendDecl(shaderCaps, &fshaderTxt);
fshaderTxt.append(";");
uTexture.appendDecl(shaderCaps, &fshaderTxt);
fshaderTxt.append(";");
fshaderTxt.appendf(
// Copy Program FS
"void main() {"
"sk_FragColor = sample(u_texture, v_texCoord);"
"}"
);
std::string vertexSkSL{vshaderTxt.c_str(), vshaderTxt.size()};
std::string fragmentSkSL{fshaderTxt.c_str(), fshaderTxt.size()};
auto errorHandler = this->getContext()->priv().getShaderErrorHandler();
SkSL::NativeShader glsl[kGrShaderTypeCount];
SkSL::ProgramSettings settings;
SkSL::Program::Interface interface;
skgpu::SkSLToGLSL(shaderCaps, vertexSkSL, SkSL::ProgramKind::kVertex, settings,
&glsl[kVertex_GrShaderType], &interface, errorHandler);
GrGLuint vshader = GrGLCompileAndAttachShader(*fGLContext,
fCopyPrograms[progIdx].fProgram,
GR_GL_VERTEX_SHADER,
glsl[kVertex_GrShaderType],
/*shaderWasCached=*/false,
fProgramCache->stats(),
errorHandler);
SkASSERT(interface == SkSL::Program::Interface());
if (!vshader) {
// Just delete the program, no shaders to delete
cleanup_program(this, &fCopyPrograms[progIdx].fProgram, nullptr, nullptr);
return false;
}
skgpu::SkSLToGLSL(shaderCaps, fragmentSkSL, SkSL::ProgramKind::kFragment, settings,
&glsl[kFragment_GrShaderType], &interface, errorHandler);
GrGLuint fshader = GrGLCompileAndAttachShader(*fGLContext,
fCopyPrograms[progIdx].fProgram,
GR_GL_FRAGMENT_SHADER,
glsl[kFragment_GrShaderType],
/*shaderWasCached=*/false,
fProgramCache->stats(),
errorHandler);
SkASSERT(interface == SkSL::Program::Interface());
if (!fshader) {
// Delete the program and previously compiled vertex shader
cleanup_program(this, &fCopyPrograms[progIdx].fProgram, &vshader, nullptr);
return false;
}
const std::string* sksl[kGrShaderTypeCount] = {&vertexSkSL, &fragmentSkSL};
GL_CALL(LinkProgram(fCopyPrograms[progIdx].fProgram));
if (!GrGLCheckLinkStatus(this,
fCopyPrograms[progIdx].fProgram,
/*shaderWasCached=*/false,
errorHandler,
sksl,
glsl)) {
// Failed to link, delete everything
cleanup_program(this, &fCopyPrograms[progIdx].fProgram, &vshader, &fshader);
return false;
}
GL_CALL_RET(fCopyPrograms[progIdx].fTextureUniform,
GetUniformLocation(fCopyPrograms[progIdx].fProgram, "u_texture"));
GL_CALL_RET(fCopyPrograms[progIdx].fPosXformUniform,
GetUniformLocation(fCopyPrograms[progIdx].fProgram, "u_posXform"));
GL_CALL_RET(fCopyPrograms[progIdx].fTexCoordXformUniform,
GetUniformLocation(fCopyPrograms[progIdx].fProgram, "u_texCoordXform"));
GL_CALL(BindAttribLocation(fCopyPrograms[progIdx].fProgram, 0, "a_vertex"));
// Cleanup the shaders, but not the program
cleanup_program(this, nullptr, &vshader, &fshader);
return true;
}
bool GrGLGpu::createMipmapProgram(int progIdx) {
const bool oddWidth = SkToBool(progIdx & 0x2);
const bool oddHeight = SkToBool(progIdx & 0x1);
const int numTaps = (oddWidth ? 2 : 1) * (oddHeight ? 2 : 1);
const GrShaderCaps* shaderCaps = this->caps()->shaderCaps();
SkASSERT(!fMipmapPrograms[progIdx].fProgram);
GL_CALL_RET(fMipmapPrograms[progIdx].fProgram, CreateProgram());
if (!fMipmapPrograms[progIdx].fProgram) {
return false;
}
GrShaderVar aVertex("a_vertex", SkSLType::kHalf2, GrShaderVar::TypeModifier::In);
GrShaderVar uTexCoordXform("u_texCoordXform", SkSLType::kHalf4,
GrShaderVar::TypeModifier::Uniform);
GrShaderVar uTexture("u_texture", SkSLType::kTexture2DSampler);
// We need 1, 2, or 4 texture coordinates (depending on parity of each dimension):
GrShaderVar vTexCoords[] = {
GrShaderVar("v_texCoord0", SkSLType::kHalf2, GrShaderVar::TypeModifier::Out),
GrShaderVar("v_texCoord1", SkSLType::kHalf2, GrShaderVar::TypeModifier::Out),
GrShaderVar("v_texCoord2", SkSLType::kHalf2, GrShaderVar::TypeModifier::Out),
GrShaderVar("v_texCoord3", SkSLType::kHalf2, GrShaderVar::TypeModifier::Out),
};
GrShaderVar oFragColor("o_FragColor", SkSLType::kHalf4,GrShaderVar::TypeModifier::Out);
SkString vshaderTxt;
if (shaderCaps->fNoPerspectiveInterpolationSupport) {
if (const char* extension = shaderCaps->noperspectiveInterpolationExtensionString()) {
vshaderTxt.appendf("#extension %s : require\n", extension);
}
vTexCoords[0].addModifier("noperspective");
vTexCoords[1].addModifier("noperspective");
vTexCoords[2].addModifier("noperspective");
vTexCoords[3].addModifier("noperspective");
}
aVertex.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
uTexCoordXform.appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
for (int i = 0; i < numTaps; ++i) {
vTexCoords[i].appendDecl(shaderCaps, &vshaderTxt);
vshaderTxt.append(";");
}
vshaderTxt.append(
// Mipmap Program VS
"void main() {"
"sk_Position.xy = a_vertex * half2(2) - half2(1);"
"sk_Position.zw = half2(0, 1);"
);
// Insert texture coordinate computation:
if (oddWidth && oddHeight) {
vshaderTxt.append(
"v_texCoord0 = a_vertex.xy * u_texCoordXform.yw;"
"v_texCoord1 = a_vertex.xy * u_texCoordXform.yw + half2(u_texCoordXform.x, 0);"
"v_texCoord2 = a_vertex.xy * u_texCoordXform.yw + half2(0, u_texCoordXform.z);"
"v_texCoord3 = a_vertex.xy * u_texCoordXform.yw + u_texCoordXform.xz;"
);
} else if (oddWidth) {
vshaderTxt.append(
"v_texCoord0 = a_vertex.xy * half2(u_texCoordXform.y, 1);"
"v_texCoord1 = a_vertex.xy * half2(u_texCoordXform.y, 1) + half2(u_texCoordXform.x, 0);"
);
} else if (oddHeight) {
vshaderTxt.append(
"v_texCoord0 = a_vertex.xy * half2(1, u_texCoordXform.w);"
"v_texCoord1 = a_vertex.xy * half2(1, u_texCoordXform.w) + half2(0, u_texCoordXform.z);"
);
} else {
vshaderTxt.append(
"v_texCoord0 = a_vertex.xy;"
);
}
vshaderTxt.append("}");
SkString fshaderTxt;
if (shaderCaps->fNoPerspectiveInterpolationSupport) {
if (const char* extension = shaderCaps->noperspectiveInterpolationExtensionString()) {
fshaderTxt.appendf("#extension %s : require\n", extension);
}
}
for (int i = 0; i < numTaps; ++i) {
vTexCoords[i].setTypeModifier(GrShaderVar::TypeModifier::In);
vTexCoords[i].appendDecl(shaderCaps, &fshaderTxt);
fshaderTxt.append(";");
}
uTexture.appendDecl(shaderCaps, &fshaderTxt);
fshaderTxt.append(";");
fshaderTxt.append(
// Mipmap Program FS
"void main() {"
);
if (oddWidth && oddHeight) {
fshaderTxt.append(
"sk_FragColor = (sample(u_texture, v_texCoord0) + "
"sample(u_texture, v_texCoord1) + "
"sample(u_texture, v_texCoord2) + "
"sample(u_texture, v_texCoord3)) * 0.25;"
);
} else if (oddWidth || oddHeight) {
fshaderTxt.append(
"sk_FragColor = (sample(u_texture, v_texCoord0) + "
"sample(u_texture, v_texCoord1)) * 0.5;"
);
} else {
fshaderTxt.append(
"sk_FragColor = sample(u_texture, v_texCoord0);"
);
}
fshaderTxt.append("}");
std::string vertexSkSL{vshaderTxt.c_str(), vshaderTxt.size()};
std::string fragmentSkSL{fshaderTxt.c_str(), fshaderTxt.size()};
auto errorHandler = this->getContext()->priv().getShaderErrorHandler();
SkSL::NativeShader glsl[kGrShaderTypeCount];
SkSL::ProgramSettings settings;
SkSL::Program::Interface interface;
skgpu::SkSLToGLSL(shaderCaps, vertexSkSL, SkSL::ProgramKind::kVertex, settings,
&glsl[kVertex_GrShaderType], &interface, errorHandler);
GrGLuint vshader = GrGLCompileAndAttachShader(*fGLContext,
fMipmapPrograms[progIdx].fProgram,
GR_GL_VERTEX_SHADER,
glsl[kVertex_GrShaderType],
/*shaderWasCached=*/false,
fProgramCache->stats(),
errorHandler);
SkASSERT(interface == SkSL::Program::Interface());
if (!vshader) {
cleanup_program(this, &fMipmapPrograms[progIdx].fProgram, nullptr, nullptr);
return false;
}
skgpu::SkSLToGLSL(shaderCaps, fragmentSkSL, SkSL::ProgramKind::kFragment, settings,
&glsl[kFragment_GrShaderType], &interface, errorHandler);
GrGLuint fshader = GrGLCompileAndAttachShader(*fGLContext,
fMipmapPrograms[progIdx].fProgram,
GR_GL_FRAGMENT_SHADER,
glsl[kFragment_GrShaderType],
/*shaderWasCached=*/false,
fProgramCache->stats(),
errorHandler);
SkASSERT(interface == SkSL::Program::Interface());
if (!fshader) {
cleanup_program(this, &fMipmapPrograms[progIdx].fProgram, &vshader, nullptr);
return false;
}
const std::string* sksl[kGrShaderTypeCount] = {&vertexSkSL, &fragmentSkSL};
GL_CALL(LinkProgram(fMipmapPrograms[progIdx].fProgram));
if (!GrGLCheckLinkStatus(this,
fMipmapPrograms[progIdx].fProgram,
/*shaderWasCached=*/false,
errorHandler,
sksl,
glsl)) {
// Program linking failed, clean up
cleanup_program(this, &fMipmapPrograms[progIdx].fProgram, &vshader, &fshader);
return false;
}
GL_CALL_RET(fMipmapPrograms[progIdx].fTextureUniform,
GetUniformLocation(fMipmapPrograms[progIdx].fProgram, "u_texture"));
GL_CALL_RET(fMipmapPrograms[progIdx].fTexCoordXformUniform,
GetUniformLocation(fMipmapPrograms[progIdx].fProgram, "u_texCoordXform"));
GL_CALL(BindAttribLocation(fMipmapPrograms[progIdx].fProgram, 0, "a_vertex"));
// Clean up the shaders
cleanup_program(this, nullptr, &vshader, &fshader);
return true;
}
bool GrGLGpu::copySurfaceAsDraw(GrSurface* dst, bool drawToMultisampleFBO, GrSurface* src,
const SkIRect& srcRect, const SkIRect& dstRect,
GrSamplerState::Filter filter) {
auto* srcTex = static_cast<GrGLTexture*>(src->asTexture());
if (!srcTex) {
return false;
}
// We don't swizzle at all in our copies.
this->bindTexture(0, filter, skgpu::Swizzle::RGBA(), srcTex);
if (auto* dstRT = static_cast<GrGLRenderTarget*>(dst->asRenderTarget())) {
this->flushRenderTarget(dstRT, drawToMultisampleFBO);
} else {
auto* dstTex = static_cast<GrGLTexture*>(src->asTexture());
SkASSERT(dstTex);
SkASSERT(!drawToMultisampleFBO);
if (!this->glCaps().isFormatRenderable(dstTex->format(), 1)) {
return false;
}
this->bindSurfaceFBOForPixelOps(dst, 0, GR_GL_FRAMEBUFFER, kDst_TempFBOTarget);
fHWBoundRenderTargetUniqueID.makeInvalid();
}
int progIdx = TextureToCopyProgramIdx(srcTex);
if (!fCopyPrograms[progIdx].fProgram) {
if (!this->createCopyProgram(srcTex)) {
SkDebugf("Failed to create copy program.\n");
return false;
}
}
this->flushViewport(SkIRect::MakeSize(dst->dimensions()),
dst->height(),
kTopLeft_GrSurfaceOrigin); // the origin is irrelevant in this case
this->flushProgram(fCopyPrograms[progIdx].fProgram);
fHWVertexArrayState.setVertexArrayID(this, 0);
GrGLAttribArrayState* attribs = fHWVertexArrayState.bindInternalVertexArray(this);
attribs->enableVertexArrays(this, 1);
attribs->set(this, 0, fCopyProgramArrayBuffer.get(), kFloat2_GrVertexAttribType,
SkSLType::kFloat2, 2 * sizeof(GrGLfloat), 0);
// dst rect edges in NDC (-1 to 1)
int dw = dst->width();
int dh = dst->height();
GrGLfloat dx0 = 2.f * dstRect.fLeft / dw - 1.f;
GrGLfloat dx1 = 2.f * dstRect.fRight / dw - 1.f;
GrGLfloat dy0 = 2.f * dstRect.fTop / dh - 1.f;
GrGLfloat dy1 = 2.f * dstRect.fBottom / dh - 1.f;
GrGLfloat sx0 = (GrGLfloat)srcRect.fLeft;
GrGLfloat sx1 = (GrGLfloat)(srcRect.fRight);
GrGLfloat sy0 = (GrGLfloat)srcRect.fTop;
GrGLfloat sy1 = (GrGLfloat)(srcRect.fBottom);
int sw = src->width();
int sh = src->height();
if (srcTex->textureType() != GrTextureType::kRectangle) {
// src rect edges in normalized texture space (0 to 1)
sx0 /= sw;
sx1 /= sw;
sy0 /= sh;
sy1 /= sh;
}
GL_CALL(Uniform4f(fCopyPrograms[progIdx].fPosXformUniform, dx1 - dx0, dy1 - dy0, dx0, dy0));
GL_CALL(Uniform4f(fCopyPrograms[progIdx].fTexCoordXformUniform,
sx1 - sx0, sy1 - sy0, sx0, sy0));
GL_CALL(Uniform1i(fCopyPrograms[progIdx].fTextureUniform, 0));
this->flushBlendAndColorWrite(skgpu::BlendInfo(), skgpu::Swizzle::RGBA());
this->flushConservativeRasterState(false);
this->flushWireframeState(false);
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
this->disableStencil();
if (this->glCaps().srgbWriteControl()) {
this->flushFramebufferSRGB(true);
}
GL_CALL(DrawArrays(GR_GL_TRIANGLE_STRIP, 0, 4));
this->unbindSurfaceFBOForPixelOps(dst, 0, GR_GL_FRAMEBUFFER);
// The rect is already in device space so we pass in kTopLeft so no flip is done.
this->didWriteToSurface(dst, kTopLeft_GrSurfaceOrigin, &dstRect);
return true;
}
void GrGLGpu::copySurfaceAsCopyTexSubImage(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
const SkIPoint& dstPoint) {
SkASSERT(can_copy_texsubimage(dst, src, this->glCaps()));
this->bindSurfaceFBOForPixelOps(src, 0, GR_GL_FRAMEBUFFER, kSrc_TempFBOTarget);
GrGLTexture* dstTex = static_cast<GrGLTexture *>(dst->asTexture());
SkASSERT(dstTex);
// We modified the bound FBO
fHWBoundRenderTargetUniqueID.makeInvalid();
this->bindTextureToScratchUnit(dstTex->target(), dstTex->textureID());
GL_CALL(CopyTexSubImage2D(dstTex->target(), 0,
dstPoint.fX, dstPoint.fY,
srcRect.fLeft, srcRect.fTop,
srcRect.width(), srcRect.height()));
this->unbindSurfaceFBOForPixelOps(src, 0, GR_GL_FRAMEBUFFER);
SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.fX, dstPoint.fY,
srcRect.width(), srcRect.height());
// The rect is already in device space so we pass in kTopLeft so no flip is done.
this->didWriteToSurface(dst, kTopLeft_GrSurfaceOrigin, &dstRect);
}
bool GrGLGpu::copySurfaceAsBlitFramebuffer(GrSurface* dst, GrSurface* src, const SkIRect& srcRect,
const SkIRect& dstRect, GrSamplerState::Filter filter) {
SkASSERT(can_blit_framebuffer_for_copy_surface(dst, src, srcRect, dstRect, this->glCaps()));
if (dst == src) {
if (SkIRect::Intersects(dstRect, srcRect)) {
return false;
}
}
this->bindSurfaceFBOForPixelOps(dst, 0, GR_GL_DRAW_FRAMEBUFFER, kDst_TempFBOTarget);
this->bindSurfaceFBOForPixelOps(src, 0, GR_GL_READ_FRAMEBUFFER, kSrc_TempFBOTarget);
// We modified the bound FBO
fHWBoundRenderTargetUniqueID.makeInvalid();
// BlitFrameBuffer respects the scissor, so disable it.
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
GL_CALL(BlitFramebuffer(srcRect.fLeft,
srcRect.fTop,
srcRect.fRight,
srcRect.fBottom,
dstRect.fLeft,
dstRect.fTop,
dstRect.fRight,
dstRect.fBottom,
GR_GL_COLOR_BUFFER_BIT,
filter_to_gl_mag_filter(filter)));
this->unbindSurfaceFBOForPixelOps(dst, 0, GR_GL_DRAW_FRAMEBUFFER);
this->unbindSurfaceFBOForPixelOps(src, 0, GR_GL_READ_FRAMEBUFFER);
// The rect is already in device space so we pass in kTopLeft so no flip is done.
this->didWriteToSurface(dst, kTopLeft_GrSurfaceOrigin, &dstRect);
return true;
}
bool GrGLGpu::onRegenerateMipMapLevels(GrTexture* texture) {
using RegenerateMipmapType = GrGLCaps::RegenerateMipmapType;
auto glTex = static_cast<GrGLTexture*>(texture);
// Mipmaps are only supported on 2D textures:
if (GR_GL_TEXTURE_2D != glTex->target()) {
return false;
}
GrGLFormat format = glTex->format();
// Manual implementation of mipmap generation, to work around driver bugs w/sRGB.
// Uses draw calls to do a series of downsample operations to successive mips.
// The manual approach requires the ability to limit which level we're sampling and that the
// destination can be bound to a FBO:
if (!this->glCaps().doManualMipmapping() || !this->glCaps().isFormatRenderable(format, 1)) {
GrGLenum target = glTex->target();
this->bindTextureToScratchUnit(target, glTex->textureID());
GL_CALL(GenerateMipmap(glTex->target()));
return true;
}
int width = texture->width();
int height = texture->height();
int levelCount = SkMipmap::ComputeLevelCount(width, height) + 1;
SkASSERT(levelCount == texture->maxMipmapLevel() + 1);
// Create (if necessary), then bind temporary FBO:
if (0 == fTempDstFBOID) {
GL_CALL(GenFramebuffers(1, &fTempDstFBOID));
}
this->bindFramebuffer(GR_GL_FRAMEBUFFER, fTempDstFBOID);
fHWBoundRenderTargetUniqueID.makeInvalid();
// Bind the texture, to get things configured for filtering.
// We'll be changing our base level and max level further below:
this->setTextureUnit(0);
// The mipmap program does not do any swizzling.
this->bindTexture(0, GrSamplerState::Filter::kLinear, skgpu::Swizzle::RGBA(), glTex);
// Vertex data:
if (!fMipmapProgramArrayBuffer) {
static const GrGLfloat vdata[] = {
0, 0,
0, 1,
1, 0,
1, 1
};
fMipmapProgramArrayBuffer = GrGLBuffer::Make(this,
sizeof(vdata),
GrGpuBufferType::kVertex,
kStatic_GrAccessPattern);
fMipmapProgramArrayBuffer->updateData(vdata, /*offset=*/0,
sizeof(vdata),
/*preserve=*/false);
}
if (!fMipmapProgramArrayBuffer) {
return false;
}
fHWVertexArrayState.setVertexArrayID(this, 0);
GrGLAttribArrayState* attribs = fHWVertexArrayState.bindInternalVertexArray(this);
attribs->enableVertexArrays(this, 1);
attribs->set(this, 0, fMipmapProgramArrayBuffer.get(), kFloat2_GrVertexAttribType,
SkSLType::kFloat2, 2 * sizeof(GrGLfloat), 0);
// Set "simple" state once:
this->flushBlendAndColorWrite(skgpu::BlendInfo(), skgpu::Swizzle::RGBA());
this->flushScissorTest(GrScissorTest::kDisabled);
this->disableWindowRectangles();
this->disableStencil();
// Do all the blits:
width = texture->width();
height = texture->height();
std::unique_ptr<GrSemaphore> semaphore;
for (GrGLint level = 1; level < levelCount; ++level) {
// Get and bind the program for this particular downsample (filter shape can vary):
int progIdx = TextureSizeToMipmapProgramIdx(width, height);
if (!fMipmapPrograms[progIdx].fProgram) {
if (!this->createMipmapProgram(progIdx)) {
SkDebugf("Failed to create mipmap program.\n");
// Invalidate all params to cover base and max level change in a previous iteration.
glTex->textureParamsModified();
return false;
}
}
this->flushProgram(fMipmapPrograms[progIdx].fProgram);
if (this->glCaps().regenerateMipmapType() == RegenerateMipmapType::kBasePlusSync &&
level > 1) {
this->waitSemaphore(semaphore.get());
semaphore.reset();
}
// Texcoord uniform is expected to contain (1/w, (w-1)/w, 1/h, (h-1)/h)
const float invWidth = 1.0f / width;
const float invHeight = 1.0f / height;
GL_CALL(Uniform4f(fMipmapPrograms[progIdx].fTexCoordXformUniform,
invWidth, (width - 1) * invWidth, invHeight, (height - 1) * invHeight));
GL_CALL(Uniform1i(fMipmapPrograms[progIdx].fTextureUniform, 0));
// Set the base level so that we only sample from the previous mip.
SkASSERT(this->glCaps().mipmapLevelControlSupport());
GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_BASE_LEVEL, level - 1));
// Setting the max level is technically unnecessary and can affect
// validation for the framebuffer. However, by making it clear that a
// rendering feedback loop is not occurring, we avoid hitting a slow
// path on some drivers.
if (this->glCaps().regenerateMipmapType() == RegenerateMipmapType::kBasePlusMaxLevel) {
GL_CALL(TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MAX_LEVEL, level - 1));
}
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0, GR_GL_TEXTURE_2D,
glTex->textureID(), level));
width = std::max(1, width / 2);
height = std::max(1, height / 2);
this->flushViewport(SkIRect::MakeWH(width, height), height, kTopLeft_GrSurfaceOrigin);
GL_CALL(DrawArrays(GR_GL_TRIANGLE_STRIP, 0, 4));
if (this->glCaps().regenerateMipmapType() == RegenerateMipmapType::kBasePlusSync &&
level < levelCount-1) {
semaphore = this->makeSemaphore(true);
this->insertSemaphore(semaphore.get());
}
}
// Unbind:
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D, 0, 0));
// We modified the base level and max level params.
GrGLTextureParameters::NonsamplerState nonsamplerState = glTex->parameters()->nonsamplerState();
// We drew the 2nd to last level into the last level.
nonsamplerState.fBaseMipMapLevel = levelCount - 2;
if (this->glCaps().regenerateMipmapType() == RegenerateMipmapType::kBasePlusMaxLevel) {
nonsamplerState.fMaxMipmapLevel = levelCount - 2;
}
glTex->parameters()->set(nullptr, nonsamplerState, fResetTimestampForTextureParameters);
return true;
}
void GrGLGpu::xferBarrier(GrRenderTarget* rt, GrXferBarrierType type) {
SkASSERT(type);
switch (type) {
case kTexture_GrXferBarrierType: {
GrGLRenderTarget* glrt = static_cast<GrGLRenderTarget*>(rt);
SkASSERT(glrt->asTexture());
SkASSERT(!glrt->isFBO0(false/*multisample*/));
if (glrt->requiresManualMSAAResolve()) {
// The render target uses separate storage so no need for glTextureBarrier.
// FIXME: The render target will resolve automatically when its texture is bound,
// but we could resolve only the bounds that will be read if we do it here instead.
return;
}
SkASSERT(this->caps()->textureBarrierSupport());
GL_CALL(TextureBarrier());
return;
}
case kBlend_GrXferBarrierType:
SkASSERT(GrCaps::kAdvanced_BlendEquationSupport ==
this->caps()->blendEquationSupport());
GL_CALL(BlendBarrier());
return;
default: break; // placate compiler warnings that kNone not handled
}
}
GrBackendTexture GrGLGpu::onCreateBackendTexture(SkISize dimensions,
const GrBackendFormat& format,
GrRenderable renderable,
skgpu::Mipmapped mipmapped,
GrProtected isProtected,
std::string_view label) {
this->handleDirtyContext();
if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
return {};
}
GrGLFormat glFormat = GrBackendFormats::AsGLFormat(format);
if (glFormat == GrGLFormat::kUnknown) {
return {};
}
int numMipLevels = 1;
if (mipmapped == skgpu::Mipmapped::kYes) {
numMipLevels = SkMipmap::ComputeLevelCount(dimensions) + 1;
}
// Compressed formats go through onCreateCompressedBackendTexture
SkASSERT(!GrGLFormatIsCompressed(glFormat));
GrGLTextureInfo info;
GrGLTextureParameters::SamplerOverriddenState initialState;
if (glFormat == GrGLFormat::kUnknown) {
return {};
}
switch (format.textureType()) {
case GrTextureType::kNone:
case GrTextureType::kExternal:
return {};
case GrTextureType::k2D:
info.fTarget = GR_GL_TEXTURE_2D;
break;
case GrTextureType::kRectangle:
if (!this->glCaps().rectangleTextureSupport() || mipmapped == skgpu::Mipmapped::kYes) {
return {};
}
info.fTarget = GR_GL_TEXTURE_RECTANGLE;
break;
}
info.fProtected = skgpu::Protected(isProtected == skgpu::Protected::kYes ||
this->glCaps().strictProtectedness());
info.fFormat = GrGLFormatToEnum(glFormat);
info.fID = this->createTexture(dimensions, glFormat, info.fTarget, renderable, &initialState,
numMipLevels, info.fProtected, label);
if (!info.fID) {
return {};
}
// Unbind this texture from the scratch texture unit.
this->bindTextureToScratchUnit(info.fTarget, 0);
auto parameters = sk_make_sp<GrGLTextureParameters>();
// The non-sampler params are still at their default values.
parameters->set(&initialState, GrGLTextureParameters::NonsamplerState(),
fResetTimestampForTextureParameters);
return GrBackendTextures::MakeGL(
dimensions.width(), dimensions.height(), mipmapped, info, std::move(parameters), label);
}
bool GrGLGpu::onClearBackendTexture(const GrBackendTexture& backendTexture,
sk_sp<skgpu::RefCntedCallback> finishedCallback,
std::array<float, 4> color) {
this->handleDirtyContext();
GrGLTextureInfo info;
SkAssertResult(GrBackendTextures::GetGLTextureInfo(backendTexture, &info));
int numMipLevels = 1;
if (backendTexture.hasMipmaps()) {
numMipLevels =
SkMipmap::ComputeLevelCount(backendTexture.width(), backendTexture.height()) + 1;
}
GrGLFormat glFormat = GrGLFormatFromGLEnum(info.fFormat);
this->bindTextureToScratchUnit(info.fTarget, info.fID);
// If we have mips make sure the base level is set to 0 and the max level set to numMipLevels-1
// so that the uploads go to the right levels.
if (numMipLevels && this->glCaps().mipmapLevelControlSupport()) {
auto params = get_gl_texture_params(backendTexture);
GrGLTextureParameters::NonsamplerState nonsamplerState = params->nonsamplerState();
if (params->nonsamplerState().fBaseMipMapLevel != 0) {
GL_CALL(TexParameteri(info.fTarget, GR_GL_TEXTURE_BASE_LEVEL, 0));
nonsamplerState.fBaseMipMapLevel = 0;
}
if (params->nonsamplerState().fMaxMipmapLevel != (numMipLevels - 1)) {
GL_CALL(TexParameteri(info.fTarget, GR_GL_TEXTURE_MAX_LEVEL, numMipLevels - 1));
nonsamplerState.fBaseMipMapLevel = numMipLevels - 1;
}
params->set(nullptr, nonsamplerState, fResetTimestampForTextureParameters);
}
uint32_t levelMask = (1 << numMipLevels) - 1;
bool result = this->uploadColorToTex(glFormat,
backendTexture.dimensions(),
info.fTarget,
color,
levelMask);
// Unbind this texture from the scratch texture unit.
this->bindTextureToScratchUnit(info.fTarget, 0);
return result;
}
void GrGLGpu::onDeleteBackendTexture(const GrBackendTexture& tex) {
SkASSERT(GrBackendApi::kOpenGL == tex.backend());
GrGLTextureInfo info;
if (GrBackendTextures::GetGLTextureInfo(tex, &info)) {
GL_CALL(DeleteTextures(1, &info.fID));
}
}
bool GrGLGpu::compile(const GrProgramDesc& desc, const GrProgramInfo& programInfo) {
GrThreadSafePipelineBuilder::Stats::ProgramCacheResult stat;
sk_sp<GrGLProgram> tmp = fProgramCache->findOrCreateProgram(this->getContext(),
desc, programInfo, &stat);
if (!tmp) {
return false;
}
return stat != GrThreadSafePipelineBuilder::Stats::ProgramCacheResult::kHit;
}
#if defined(GPU_TEST_UTILS)
bool GrGLGpu::isTestingOnlyBackendTexture(const GrBackendTexture& tex) const {
SkASSERT(GrBackendApi::kOpenGL == tex.backend());
GrGLTextureInfo info;
if (!GrBackendTextures::GetGLTextureInfo(tex, &info)) {
return false;
}
GrGLboolean result;
GL_CALL_RET(result, IsTexture(info.fID));
return (GR_GL_TRUE == result);
}
GrBackendRenderTarget GrGLGpu::createTestingOnlyBackendRenderTarget(SkISize dimensions,
GrColorType colorType,
int sampleCnt,
GrProtected isProtected) {
if (dimensions.width() > this->caps()->maxRenderTargetSize() ||
dimensions.height() > this->caps()->maxRenderTargetSize()) {
return {};
}
if (isProtected == GrProtected::kYes && !this->glCaps().supportsProtectedContent()) {
return {};
}
this->handleDirtyContext();
auto format = this->glCaps().getFormatFromColorType(colorType);
sampleCnt = this->glCaps().getRenderTargetSampleCount(sampleCnt, format);
if (!sampleCnt) {
return {};
}
// We make a texture instead of a render target if we're using a
// "multisampled_render_to_texture" style extension or have a BGRA format that
// is allowed for textures but not render buffer internal formats.
bool useTexture = false;
if (sampleCnt > 1 && !this->glCaps().usesMSAARenderBuffers()) {
useTexture = true;
} else if (format == GrGLFormat::kBGRA8 &&
this->glCaps().getRenderbufferInternalFormat(GrGLFormat::kBGRA8) != GR_GL_BGRA8) {
// We have a BGRA extension that doesn't support BGRA render buffers. We can use a texture
// unless we've been asked for MSAA. Note we already checked above for render-to-
// multisampled-texture style extensions.
if (sampleCnt > 1) {
return {};
}
useTexture = true;
}
bool avoidStencil = this->glCaps().avoidStencilBuffers();
int sFormatIdx = -1;
if (!avoidStencil) {
sFormatIdx = this->getCompatibleStencilIndex(format);
if (sFormatIdx < 0) {
return {};
}
}
GrGLuint colorID = 0;
GrGLuint stencilID = 0;
GrGLFramebufferInfo info;
info.fFBOID = 0;
info.fFormat = GrGLFormatToEnum(format);
info.fProtected = skgpu::Protected(isProtected == skgpu::Protected::kYes ||
this->glCaps().strictProtectedness());
auto deleteIDs = [&](bool saveFBO = false) {
if (colorID) {
if (useTexture) {
GL_CALL(DeleteTextures(1, &colorID));
} else {
GL_CALL(DeleteRenderbuffers(1, &colorID));
}
}
if (stencilID) {
GL_CALL(DeleteRenderbuffers(1, &stencilID));
}
if (!saveFBO && info.fFBOID) {
this->deleteFramebuffer(info.fFBOID);
}
};
if (useTexture) {
GL_CALL(GenTextures(1, &colorID));
} else {
GL_CALL(GenRenderbuffers(1, &colorID));
}
if (!colorID) {
deleteIDs();
return {};
}
if (!avoidStencil) {
GL_CALL(GenRenderbuffers(1, &stencilID));
if (!stencilID) {
deleteIDs();
return {};
}
}
GL_CALL(GenFramebuffers(1, &info.fFBOID));
if (!info.fFBOID) {
deleteIDs();
return {};
}
this->invalidateBoundRenderTarget();
this->bindFramebuffer(GR_GL_FRAMEBUFFER, info.fFBOID);
if (useTexture) {
GrGLTextureParameters::SamplerOverriddenState initialState;
colorID = this->createTexture(dimensions, format, GR_GL_TEXTURE_2D, GrRenderable::kYes,
&initialState,
1,
info.fProtected,
/*label=*/"Skia");
if (!colorID) {
deleteIDs();
return {};
}
if (sampleCnt == 1) {
GL_CALL(FramebufferTexture2D(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D, colorID, 0));
} else {
GL_CALL(FramebufferTexture2DMultisample(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D, colorID, 0, sampleCnt));
}
} else {
GrGLenum renderBufferFormat = this->glCaps().getRenderbufferInternalFormat(format);
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, colorID));
if (sampleCnt == 1) {
GL_CALL(RenderbufferStorage(GR_GL_RENDERBUFFER, renderBufferFormat, dimensions.width(),
dimensions.height()));
} else {
if (!this->renderbufferStorageMSAA(this->glContext(), sampleCnt, renderBufferFormat,
dimensions.width(), dimensions.height())) {
deleteIDs();
return {};
}
}
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_COLOR_ATTACHMENT0,
GR_GL_RENDERBUFFER, colorID));
}
if (!avoidStencil) {
GL_CALL(BindRenderbuffer(GR_GL_RENDERBUFFER, stencilID));
auto stencilBufferFormat = this->glCaps().stencilFormats()[sFormatIdx];
if (sampleCnt == 1) {
GL_CALL(RenderbufferStorage(GR_GL_RENDERBUFFER, GrGLFormatToEnum(stencilBufferFormat),
dimensions.width(), dimensions.height()));
} else {
if (!this->renderbufferStorageMSAA(this->glContext(), sampleCnt,
GrGLFormatToEnum(stencilBufferFormat),
dimensions.width(), dimensions.height())) {
deleteIDs();
return {};
}
}
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER,
stencilID));
if (GrGLFormatIsPackedDepthStencil(this->glCaps().stencilFormats()[sFormatIdx])) {
GL_CALL(FramebufferRenderbuffer(GR_GL_FRAMEBUFFER, GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER, stencilID));
}
}
// We don't want to have to recover the renderbuffer/texture IDs later to delete them. OpenGL
// has this rule that if a renderbuffer/texture is deleted and a FBO other than the current FBO
// has the RB attached then deletion is delayed. So we unbind the FBO here and delete the
// renderbuffers/texture.
this->bindFramebuffer(GR_GL_FRAMEBUFFER, 0);
deleteIDs(/* saveFBO = */ true);
this->bindFramebuffer(GR_GL_FRAMEBUFFER, info.fFBOID);
GrGLenum status;
GL_CALL_RET(status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (GR_GL_FRAMEBUFFER_COMPLETE != status) {
this->deleteFramebuffer(info.fFBOID);
return {};
}
int stencilBits = 0;
if (!avoidStencil) {
stencilBits = SkToInt(GrGLFormatStencilBits(this->glCaps().stencilFormats()[sFormatIdx]));
}
GrBackendRenderTarget beRT = GrBackendRenderTargets::MakeGL(
dimensions.width(), dimensions.height(), sampleCnt, stencilBits, info);
SkASSERT(this->caps()->areColorTypeAndFormatCompatible(colorType, beRT.getBackendFormat()));
return beRT;
}
void GrGLGpu::deleteTestingOnlyBackendRenderTarget(const GrBackendRenderTarget& backendRT) {
SkASSERT(GrBackendApi::kOpenGL == backendRT.backend());
GrGLFramebufferInfo info;
if (GrBackendRenderTargets::GetGLFramebufferInfo(backendRT, &info)) {
if (info.fFBOID) {
this->deleteFramebuffer(info.fFBOID);
}
}
}
#endif
///////////////////////////////////////////////////////////////////////////////
GrGLAttribArrayState* GrGLGpu::HWVertexArrayState::bindInternalVertexArray(GrGLGpu* gpu,
const GrBuffer* ibuf) {
SkASSERT(!ibuf || ibuf->isCpuBuffer() || !static_cast<const GrGpuBuffer*>(ibuf)->isMapped());
GrGLAttribArrayState* attribState;
if (gpu->glCaps().isCoreProfile()) {
if (!fCoreProfileVertexArray) {
GrGLuint arrayID;
GR_GL_CALL(gpu->glInterface(), GenVertexArrays(1, &arrayID));
int attrCount = gpu->glCaps().maxVertexAttributes();
fCoreProfileVertexArray = new GrGLVertexArray(arrayID, attrCount);
}
if (ibuf) {
attribState = fCoreProfileVertexArray->bindWithIndexBuffer(gpu, ibuf);
} else {
attribState = fCoreProfileVertexArray->bind(gpu);
}
} else {
if (ibuf) {
// bindBuffer implicitly binds VAO 0 when binding an index buffer.
gpu->bindBuffer(GrGpuBufferType::kIndex, ibuf);
} else {
this->setVertexArrayID(gpu, 0);
}
int attrCount = gpu->glCaps().maxVertexAttributes();
if (fDefaultVertexArrayAttribState.count() != attrCount) {
fDefaultVertexArrayAttribState.resize(attrCount);
}
attribState = &fDefaultVertexArrayAttribState;
}
return attribState;
}
void GrGLGpu::addFinishedCallback(skgpu::AutoCallback callback,
std::optional<GrTimerQuery> timerQuery) {
GrGLint glQuery = timerQuery ? static_cast<GrGLint>(timerQuery->query) : 0;
fFinishCallbacks.add(std::move(callback), glQuery);
}
void GrGLGpu::flush(FlushType flushType) {
if (fNeedsGLFlush || flushType == FlushType::kForce) {
GL_CALL(Flush());
fNeedsGLFlush = false;
}
}
void GrGLGpu::prepareSurfacesForBackendAccessAndStateUpdates(
SkSpan<GrSurfaceProxy*> proxies,
SkSurfaces::BackendSurfaceAccess access,
const skgpu::MutableTextureState* newState) {
// For reasons not fully understood, some platforms require binding to framebuffer 0 when
// presenting to a display; see skbug.com/398631003.
SkASSERT(!newState);
if (proxies.size() == 1 && proxies[0]->asRenderTargetProxy() &&
proxies[0]->asRenderTargetProxy()->glRTFBOIDIs0() &&
access == SkSurfaces::BackendSurfaceAccess::kPresent &&
this->glCaps().bindDefaultFramebufferOnPresent()) {
this->bindFramebuffer(GR_GL_DRAW_FRAMEBUFFER, 0);
}
}
bool GrGLGpu::onSubmitToGpu(const GrSubmitInfo& info) {
if (info.fSync == GrSyncCpu::kYes ||
(!fFinishCallbacks.empty() && !this->glCaps().fenceSyncSupport())) {
this->finishOutstandingGpuWork();
fFinishCallbacks.callAll(true);
} else {
this->flush();
// See if any previously inserted finish procs are good to go.
fFinishCallbacks.check();
}
if (!this->glCaps().skipErrorChecks()) {
this->clearErrorsAndCheckForOOM();
}
return true;
}
void GrGLGpu::willExecute() {
// Because our transfers will be submitted to GL to perfom immediately (no command buffer to
// submit), we must unmap any staging buffers.
if (fStagingBufferManager) {
fStagingBufferManager->detachBuffers();
}
}
void GrGLGpu::submit(GrOpsRenderPass* renderPass) {
// The GrGLOpsRenderPass doesn't buffer ops so there is nothing to do here
SkASSERT(fCachedOpsRenderPass.get() == renderPass);
fCachedOpsRenderPass->reset();
}
[[nodiscard]] GrGLsync GrGLGpu::insertSync() {
GrGLsync sync = nullptr;
switch (this->glCaps().fenceType()) {
case GrGLCaps::FenceType::kNone:
return nullptr;
case GrGLCaps::FenceType::kNVFence: {
static_assert(sizeof(GrGLsync) >= sizeof(GrGLuint));
GrGLuint fence = 0;
GL_CALL(GenFences(1, &fence));
GL_CALL(SetFence(fence, GR_GL_ALL_COMPLETED));
sync = reinterpret_cast<GrGLsync>(static_cast<intptr_t>(fence));
break;
}
case GrGLCaps::FenceType::kSyncObject: {
GL_CALL_RET(sync, FenceSync(GR_GL_SYNC_GPU_COMMANDS_COMPLETE, 0));
break;
}
}
this->setNeedsFlush();
return sync;
}
bool GrGLGpu::testSync(GrGLsync sync) {
switch (this->glCaps().fenceType()) {
case GrGLCaps::FenceType::kNone:
SK_ABORT("Testing sync without sync support.");
return false;
case GrGLCaps::FenceType::kNVFence: {
GrGLuint nvFence = static_cast<GrGLuint>(reinterpret_cast<intptr_t>(sync));
GrGLboolean result;
GL_CALL_RET(result, TestFence(nvFence));
return result == GR_GL_TRUE;
}
case GrGLCaps::FenceType::kSyncObject: {
constexpr GrGLbitfield kFlags = 0;
GrGLenum result;
#if defined(__EMSCRIPTEN__) && __EMSCRIPTEN_major__ < 5
GL_CALL_RET(result, ClientWaitSync(sync, kFlags, 0, 0));
#else
GL_CALL_RET(result, ClientWaitSync(sync, kFlags, 0));
#endif
return (GR_GL_CONDITION_SATISFIED == result || GR_GL_ALREADY_SIGNALED == result);
}
}
SkUNREACHABLE;
}
void GrGLGpu::deleteSync(GrGLsync sync) {
switch (this->glCaps().fenceType()) {
case GrGLCaps::FenceType::kNone:
SK_ABORT("Deleting sync without sync support.");
break;
case GrGLCaps::FenceType::kNVFence: {
GrGLuint nvFence = SkToUInt(reinterpret_cast<intptr_t>(sync));
GL_CALL(DeleteFences(1, &nvFence));
break;
}
case GrGLCaps::FenceType::kSyncObject:
GL_CALL(DeleteSync(sync));
break;
}
}
[[nodiscard]] std::unique_ptr<GrSemaphore> GrGLGpu::makeSemaphore(bool isOwned) {
SkASSERT(this->caps()->semaphoreSupport());
return GrGLSemaphore::Make(this, isOwned);
}
std::unique_ptr<GrSemaphore> GrGLGpu::wrapBackendSemaphore(const GrBackendSemaphore&,
GrSemaphoreWrapType,
GrWrapOwnership) {
SK_ABORT("Unsupported");
}
void GrGLGpu::insertSemaphore(GrSemaphore* semaphore) {
SkASSERT(semaphore);
GrGLSemaphore* glSem = static_cast<GrGLSemaphore*>(semaphore);
GrGLsync sync;
GL_CALL_RET(sync, FenceSync(GR_GL_SYNC_GPU_COMMANDS_COMPLETE, 0));
glSem->setSync(sync);
this->setNeedsFlush();
}
void GrGLGpu::waitSemaphore(GrSemaphore* semaphore) {
SkASSERT(semaphore);
GrGLSemaphore* glSem = static_cast<GrGLSemaphore*>(semaphore);
#if defined(__EMSCRIPTEN__) && __EMSCRIPTEN_major__ < 5
constexpr auto kLo = SkTo<GrGLuint>(GR_GL_TIMEOUT_IGNORED & 0xFFFFFFFFull);
constexpr auto kHi = SkTo<GrGLuint>(GR_GL_TIMEOUT_IGNORED >> 32);
GL_CALL(WaitSync(glSem->sync(), 0, kLo, kHi));
#else
GL_CALL(WaitSync(glSem->sync(), 0, GR_GL_TIMEOUT_IGNORED));
#endif
}
void GrGLGpu::forcefullyFlushQueries() {
if (!fHasUnflushedQueries) {
return;
}
if (this->glCaps().fenceType() == GrGLCaps::FenceType::kSyncObject) {
GrGLsync sync;
GL_CALL_RET(sync, FenceSync(GR_GL_SYNC_GPU_COMMANDS_COMPLETE, 0));
if (sync) {
#if defined(__EMSCRIPTEN__) && __EMSCRIPTEN_major__ < 5
GL_CALL(ClientWaitSync(sync, GR_GL_SYNC_FLUSH_COMMANDS_BIT, 0, 0));
#else
GL_CALL(ClientWaitSync(sync, GR_GL_SYNC_FLUSH_COMMANDS_BIT, 0));
#endif
GL_CALL(DeleteSync(sync));
fHasUnflushedQueries = false;
return;
}
}
GL_CALL(Finish());
fHasUnflushedQueries = false;
}
std::optional<GrTimerQuery> GrGLGpu::startTimerQuery() {
if (glCaps().timerQueryType() == GrGLCaps::TimerQueryType::kNone) {
return {};
}
GrGLuint glQuery;
GL_CALL(GenQueries(1, &glQuery));
if (!glQuery) {
return {};
}
if (glCaps().timerQueryType() == GrGLCaps::TimerQueryType::kDisjoint) {
// Clear the disjoint state
GrGLint _;
GR_GL_GetIntegerv(this->glInterface(), GR_GL_GPU_DISJOINT, &_);
}
GL_CALL(BeginQuery(GR_GL_TIME_ELAPSED, glQuery));
fHasUnflushedQueries = true;
return GrTimerQuery{glQuery};
}
void GrGLGpu::endTimerQuery(const GrTimerQuery& timerQuery) {
SkASSERT(glCaps().timerQueryType() != GrGLCaps::TimerQueryType::kNone);
SkASSERT(SkToUInt(timerQuery.query));
// Since only one query of a particular type can be active at once, glEndQuery doesn't take a
// query parameter.
GL_CALL(EndQuery(GR_GL_TIME_ELAPSED));
fHasUnflushedQueries = true;
}
uint64_t GrGLGpu::getTimerQueryResult(GrGLuint query) {
SkASSERT(glCaps().timerQueryType() != GrGLCaps::TimerQueryType::kNone);
SkASSERT(query);
// Because we only call this after a sync completes the query *should* be available.
GrGLuint available;
GL_CALL(GetQueryObjectuiv(query, GR_GL_QUERY_RESULT_AVAILABLE, &available));
bool getResult = true;
if (!available) {
SkDebugf("GL timer query is not available.\n");
getResult = false;
}
if (glCaps().timerQueryType() == GrGLCaps::TimerQueryType::kDisjoint) {
// Clear the disjoint state
GrGLint disjoint;
GR_GL_GetIntegerv(this->glInterface(), GR_GL_GPU_DISJOINT, &disjoint);
if (disjoint) {
SkDebugf("GL timer query ignored because of disjoint event.\n");
getResult = false;
}
}
uint64_t result = 0;
if (getResult) {
GR_GL_GetQueryObjectui64v(this->glInterface(), query, GR_GL_QUERY_RESULT, &result);
}
GL_CALL(DeleteQueries(1, &query));
return result;
}
void GrGLGpu::checkFinishedCallbacks() {
fFinishCallbacks.check();
}
void GrGLGpu::finishOutstandingGpuWork() {
GL_CALL(Finish());
}
void GrGLGpu::clearErrorsAndCheckForOOM() {
while (this->getErrorAndCheckForOOM() != GR_GL_NO_ERROR) {}
}
GrGLenum GrGLGpu::getErrorAndCheckForOOM() {
#if GR_GL_CHECK_ERROR
if (this->glInterface()->checkAndResetOOMed()) {
this->setOOMed();
}
#endif
GrGLenum error = this->fGLContext->glInterface()->fFunctions.fGetError();
if (error == GR_GL_OUT_OF_MEMORY) {
this->setOOMed();
}
return error;
}
std::unique_ptr<GrSemaphore> GrGLGpu::prepareTextureForCrossContextUsage(GrTexture* texture) {
// Set up a semaphore to be signaled once the data is ready, and flush GL
std::unique_ptr<GrSemaphore> semaphore = this->makeSemaphore(true);
SkASSERT(semaphore);
this->insertSemaphore(semaphore.get());
// We must call flush here to make sure the GrGLsync object gets created and sent to the gpu.
this->flush(FlushType::kForce);
return semaphore;
}
int GrGLGpu::TextureToCopyProgramIdx(GrTexture* texture) {
switch (SkSLCombinedSamplerTypeForTextureType(texture->textureType())) {
case SkSLType::kTexture2DSampler:
return 0;
case SkSLType::kTexture2DRectSampler:
return 1;
case SkSLType::kTextureExternalSampler:
return 2;
default:
SK_ABORT("Unexpected samper type");
}
}
#ifdef SK_ENABLE_DUMP_GPU
#include "src/utils/SkJSONWriter.h"
void GrGLGpu::onDumpJSON(SkJSONWriter* writer) const {
// We are called by the base class, which has already called beginObject(). We choose to nest
// all of our caps information in a named sub-object.
writer->beginObject("GL GPU");
const GrGLubyte* str;
GL_CALL_RET(str, GetString(GR_GL_VERSION));
writer->appendCString("GL_VERSION", (const char*)(str));
GL_CALL_RET(str, GetString(GR_GL_RENDERER));
writer->appendCString("GL_RENDERER", (const char*)(str));
GL_CALL_RET(str, GetString(GR_GL_VENDOR));
writer->appendCString("GL_VENDOR", (const char*)(str));
GL_CALL_RET(str, GetString(GR_GL_SHADING_LANGUAGE_VERSION));
writer->appendCString("GL_SHADING_LANGUAGE_VERSION", (const char*)(str));
writer->appendName("extensions");
glInterface()->fExtensions.dumpJSON(writer);
writer->endObject();
}
#endif