| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Test.h" |
| #if SK_SUPPORT_GPU |
| #include "GrContext.h" |
| #include "GrDrawContext.h" |
| #include "gl/GrGLGpu.h" |
| #include "gl/GrGLUtil.h" |
| #include "gl/GLTestContext.h" |
| |
| static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) { |
| int pixelCnt = rectangleTexture->width() * rectangleTexture->height(); |
| SkAutoTMalloc<uint32_t> pixels(pixelCnt); |
| memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt); |
| bool read = rectangleTexture->readPixels(0, 0, rectangleTexture->width(), |
| rectangleTexture->height(), kRGBA_8888_GrPixelConfig, |
| pixels.get()); |
| if (!read) { |
| ERRORF(reporter, "Error reading rectangle texture."); |
| } |
| for (int i = 0; i < pixelCnt; ++i) { |
| if (pixels.get()[i] != expectedPixelValues[i]) { |
| ERRORF(reporter, "Error, rectangle texture pixel value %d should be 0x%08x," |
| " got 0x%08x.", i, expectedPixelValues[i], pixels.get()[i]); |
| break; |
| } |
| } |
| } |
| |
| static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* rectangleTexture) { |
| int pixelCnt = rectangleTexture->width() * rectangleTexture->height(); |
| SkAutoTMalloc<uint32_t> pixels(pixelCnt); |
| for (int y = 0; y < rectangleTexture->width(); ++y) { |
| for (int x = 0; x < rectangleTexture->height(); ++x) { |
| pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(x, y, x + y, x * y); |
| } |
| } |
| bool write = rectangleTexture->writePixels(0, 0, rectangleTexture->width(), |
| rectangleTexture->height(), kRGBA_8888_GrPixelConfig, |
| pixels.get()); |
| if (!write) { |
| ERRORF(reporter, "Error writing to rectangle texture."); |
| } |
| test_read_pixels(reporter, context, rectangleTexture, pixels.get()); |
| } |
| |
| static void test_copy_surface_src(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) { |
| GrSurfaceDesc copyDstDesc; |
| copyDstDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| copyDstDesc.fWidth = rectangleTexture->width(); |
| copyDstDesc.fHeight = rectangleTexture->height(); |
| copyDstDesc.fFlags = kRenderTarget_GrSurfaceFlag; |
| SkAutoTUnref<GrTexture> dst(context->textureProvider()->createTexture( |
| copyDstDesc, SkBudgeted::kYes)); |
| context->copySurface(dst, rectangleTexture); |
| test_read_pixels(reporter, context, dst, expectedPixelValues); |
| } |
| |
| static void test_copy_surface_dst(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* rectangleTexture) { |
| int pixelCnt = rectangleTexture->width() * rectangleTexture->height(); |
| SkAutoTMalloc<uint32_t> pixels(pixelCnt); |
| for (int y = 0; y < rectangleTexture->width(); ++y) { |
| for (int x = 0; x < rectangleTexture->height(); ++x) { |
| pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(y, x, x * y, x *+ y); |
| } |
| } |
| |
| GrSurfaceDesc copySrcDesc; |
| copySrcDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| copySrcDesc.fWidth = rectangleTexture->width(); |
| copySrcDesc.fHeight = rectangleTexture->height(); |
| copySrcDesc.fFlags = kRenderTarget_GrSurfaceFlag; |
| SkAutoTUnref<GrTexture> src(context->textureProvider()->createTexture( |
| copySrcDesc, SkBudgeted::kYes, pixels.get(), 0)); |
| |
| context->copySurface(rectangleTexture, src); |
| test_read_pixels(reporter, context, rectangleTexture, pixels.get()); |
| } |
| |
| static void test_clear(skiatest::Reporter* reporter, GrContext* context, |
| GrTexture* rectangleTexture) { |
| if (rectangleTexture->asRenderTarget()) { |
| sk_sp<GrDrawContext> dc( |
| context->makeDrawContext(sk_ref_sp(rectangleTexture->asRenderTarget()), |
| nullptr)); |
| if (!dc) { |
| ERRORF(reporter, "Could not get GrDrawContext for rectangle texture."); |
| return; |
| } |
| |
| // Clear the whole thing. |
| GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD); |
| dc->clear(nullptr, color0, false); |
| |
| int w = rectangleTexture->width(); |
| int h = rectangleTexture->height(); |
| int pixelCnt = w * h; |
| SkAutoTMalloc<uint32_t> expectedPixels(pixelCnt); |
| |
| // The clear color is a GrColor, our readback is to kRGBA_8888, which may be different. |
| uint32_t expectedColor0 = 0; |
| uint8_t* expectedBytes0 = SkTCast<uint8_t*>(&expectedColor0); |
| expectedBytes0[0] = GrColorUnpackR(color0); |
| expectedBytes0[1] = GrColorUnpackG(color0); |
| expectedBytes0[2] = GrColorUnpackB(color0); |
| expectedBytes0[3] = GrColorUnpackA(color0); |
| for (int i = 0; i < rectangleTexture->width() * rectangleTexture->height(); ++i) { |
| expectedPixels.get()[i] = expectedColor0; |
| } |
| |
| // Clear the the top to a different color. |
| GrColor color1 = GrColorPackRGBA(0x1, 0x2, 0x3, 0x4); |
| SkIRect rect = SkIRect::MakeWH(w, h/2); |
| dc->clear(&rect, color1, false); |
| |
| uint32_t expectedColor1 = 0; |
| uint8_t* expectedBytes1 = SkTCast<uint8_t*>(&expectedColor1); |
| expectedBytes1[0] = GrColorUnpackR(color1); |
| expectedBytes1[1] = GrColorUnpackG(color1); |
| expectedBytes1[2] = GrColorUnpackB(color1); |
| expectedBytes1[3] = GrColorUnpackA(color1); |
| |
| for (int y = 0; y < h/2; ++y) { |
| for (int x = 0; x < w; ++x) { |
| expectedPixels.get()[y * h + x] = expectedColor1; |
| } |
| } |
| |
| test_read_pixels(reporter, context, rectangleTexture, expectedPixels.get()); |
| } |
| } |
| |
| DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) { |
| GrContext* context = ctxInfo.grContext(); |
| sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext(); |
| static const int kWidth = 13; |
| static const int kHeight = 13; |
| |
| GrColor pixels[kWidth * kHeight]; |
| for (int y = 0; y < kHeight; ++y) { |
| for (int x = 0; x < kWidth; ++x) { |
| pixels[y * kWidth + x] = y * kWidth + x; |
| } |
| } |
| |
| for (int origin = 0; origin < 2; ++origin) { |
| GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA, |
| GR_GL_RGBA, GR_GL_UNSIGNED_BYTE, |
| pixels); |
| |
| if (!rectTexID) { |
| return; |
| } |
| |
| // Let GrContext know that we messed with the GL context directly. |
| context->resetContext(); |
| |
| // Wrap the rectangle texture ID in a GrTexture |
| GrGLTextureInfo rectangleInfo; |
| rectangleInfo.fID = rectTexID; |
| rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE; |
| |
| GrBackendTextureDesc rectangleDesc; |
| rectangleDesc.fFlags = kRenderTarget_GrBackendTextureFlag; |
| rectangleDesc.fConfig = kRGBA_8888_GrPixelConfig; |
| rectangleDesc.fWidth = kWidth; |
| rectangleDesc.fHeight = kHeight; |
| rectangleDesc.fOrigin = origin ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin; |
| rectangleDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&rectangleInfo); |
| |
| GrColor refPixels[kWidth * kHeight]; |
| bool flipRef = rectangleDesc.fOrigin == kBottomLeft_GrSurfaceOrigin; |
| for (int y = 0; y < kHeight; ++y) { |
| for (int x = 0; x < kWidth; ++x) { |
| int y0 = flipRef ? kHeight - y - 1 : y; |
| refPixels[y * kWidth + x] = pixels[y0 * kWidth + x]; |
| } |
| } |
| |
| SkAutoTUnref<GrTexture> rectangleTexture( |
| context->textureProvider()->wrapBackendTexture(rectangleDesc)); |
| if (!rectangleTexture) { |
| ERRORF(reporter, "Error wrapping rectangle texture in GrTexture."); |
| GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID)); |
| continue; |
| } |
| |
| test_read_pixels(reporter, context, rectangleTexture, refPixels); |
| |
| test_copy_surface_src(reporter, context, rectangleTexture, refPixels); |
| |
| test_copy_surface_dst(reporter, context, rectangleTexture); |
| |
| test_write_pixels(reporter, context, rectangleTexture); |
| |
| test_clear(reporter, context, rectangleTexture); |
| |
| GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID)); |
| } |
| } |
| |
| #endif |
