blob: 8c53585da0c52d960e2f5006bf33b39942a74c25 [file] [log] [blame]
/*
* Copyright 2019 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkRefCnt.h"
#include "include/gpu/gl/GrGLTypes.h"
#ifndef GrGLTypesPriv_DEFINED
#define GrGLTypesPriv_DEFINED
static constexpr int kGrGLColorFormatCount = static_cast<int>(GrGLFormat::kLastColorFormat) + 1;
class GrGLTextureParameters : public SkNVRefCnt<GrGLTextureParameters> {
public:
// We currently consider texture parameters invalid on all textures
// GrContext::resetContext(). We use this type to track whether instances of
// GrGLTextureParameters were updated before or after the most recent resetContext(). At 10
// resets / frame and 60fps a 64bit timestamp will overflow in about a billion years.
// TODO: Require clients to use GrBackendTexture::glTextureParametersModified() to invalidate
// texture parameters and get rid of timestamp checking.
using ResetTimestamp = uint64_t;
// This initializes the params to have an expired timestamp. They'll be considered invalid the
// first time the texture is used unless set() is called.
GrGLTextureParameters() = default;
// This is texture parameter state that is overridden when a non-zero sampler object is bound.
struct SamplerOverriddenState {
SamplerOverriddenState();
void invalidate();
GrGLenum fMinFilter;
GrGLenum fMagFilter;
GrGLenum fWrapS;
GrGLenum fWrapT;
GrGLfloat fMinLOD;
GrGLfloat fMaxLOD;
GrGLfloat fMaxAniso;
// We always want the border color to be transparent black, so no need to store 4 floats.
// Just track if it's been invalidated and no longer the default
bool fBorderColorInvalid;
};
// Texture parameter state that is not overridden by a bound sampler object.
struct NonsamplerState {
NonsamplerState();
void invalidate();
GrGLint fBaseMipMapLevel;
GrGLint fMaxMipmapLevel;
bool fSwizzleIsRGBA;
};
void invalidate();
ResetTimestamp resetTimestamp() const { return fResetTimestamp; }
const SamplerOverriddenState& samplerOverriddenState() const { return fSamplerOverriddenState; }
const NonsamplerState& nonsamplerState() const { return fNonsamplerState; }
// SamplerOverriddenState is optional because we don't track it when we're using sampler
// objects.
void set(const SamplerOverriddenState* samplerState,
const NonsamplerState& nonsamplerState,
ResetTimestamp currTimestamp);
private:
static constexpr ResetTimestamp kExpiredTimestamp = 0;
SamplerOverriddenState fSamplerOverriddenState;
NonsamplerState fNonsamplerState;
ResetTimestamp fResetTimestamp = kExpiredTimestamp;
};
class GrGLBackendTextureInfo {
public:
GrGLBackendTextureInfo(const GrGLTextureInfo& info, sk_sp<GrGLTextureParameters> params)
: fInfo(info), fParams(std::move(params)) {}
const GrGLTextureInfo& info() const { return fInfo; }
GrGLTextureParameters* parameters() const { return fParams.get(); }
sk_sp<GrGLTextureParameters> refParameters() const { return fParams; }
bool isProtected() const { return fInfo.isProtected(); }
private:
GrGLTextureInfo fInfo;
sk_sp<GrGLTextureParameters> fParams; // not const because we might call invalidate() on it.
};
struct GrGLTextureSpec {
GrGLTextureSpec() : fTarget(0), fFormat(0) {}
GrGLTextureSpec(const GrGLSurfaceInfo& info) : fTarget(info.fTarget), fFormat(info.fFormat) {}
GrGLenum fTarget;
GrGLenum fFormat;
};
GrGLSurfaceInfo GrGLTextureSpecToSurfaceInfo(const GrGLTextureSpec& glSpec,
uint32_t sampleCount,
uint32_t levelCount,
skgpu::Protected isProtected);
#endif