9a1ed5d81d
I created a new abstract base class TextureStorageAllocator that consumers of Skia can subclass and pass back to Skia. When a surface is created with a pointer to a TextureStorageAllocator, any textures it creates, or that are derived from the original surface, will allocate and deallocate storage using the methods on TextureStorageAllocator. BUG=https://code.google.com/p/chromium/issues/detail?id=579664 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002 Committed: https://skia.googlesource.com/skia/+/92098e691f10a010e7421125ba4d44c02506bb55 Committed: https://skia.googlesource.com/skia/+/7fec91ce6660190f8d7c5eb6f3061e4550cc672b Committed: https://skia.googlesource.com/skia/+/b8d6e088590160f1198110c2371b802c1d541a36 Review URL: https://codereview.chromium.org/1623653002
110 lines
4.7 KiB
C++
110 lines
4.7 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Test.h"
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#if SK_SUPPORT_GPU
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#include "gl/GrGLGpu.h"
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#include "GrContext.h"
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#include "SkSurface_Gpu.h"
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#include "../include/gpu/gl/SkGLContext.h"
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#include "../include/gpu/GrTypes.h"
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#include "../include/private/SkTemplates.h"
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class TestStorageAllocator {
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public:
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static GrTextureStorageAllocator::Result allocateTextureStorage(void* ctx,
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GrBackendObject texture, unsigned width, unsigned height, GrPixelConfig config,
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const void* srcData, GrSurfaceOrigin) {
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TestStorageAllocator* allocator = static_cast<TestStorageAllocator*>(ctx);
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if (!allocator->m_allowAllocation)
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return GrTextureStorageAllocator::Result::kFailed;
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SkAutoTMalloc<uint8_t> pixels(width * height * 4);
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memset(pixels.get(), 0, width * height * 4);
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GrGLuint id;
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GrGLenum target = GR_GL_TEXTURE_2D;
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GR_GL_CALL(allocator->m_gl, GenTextures(1, &id));
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GR_GL_CALL(allocator->m_gl, BindTexture(target, id));
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GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST));
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GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST));
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GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
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GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
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GR_GL_CALL(allocator->m_gl, TexImage2D(target, 0, GR_GL_RGBA, width, height, 0, GR_GL_RGBA,
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GR_GL_UNSIGNED_BYTE, pixels.get()));
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GrGLTextureInfo* info = reinterpret_cast<GrGLTextureInfo*>(texture);
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info->fID = id;
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info->fTarget = target;
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allocator->m_mostRecentlyAllocatedStorage = id;
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return GrTextureStorageAllocator::Result::kSucceededWithoutUpload;
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}
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static void deallocateTextureStorage(void* ctx, GrBackendObject texture) {
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TestStorageAllocator* allocator = static_cast<TestStorageAllocator*>(ctx);
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GrGLTextureInfo* info = reinterpret_cast<GrGLTextureInfo*>(texture);
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GR_GL_CALL(allocator->m_gl, DeleteTextures(1, &(info->fID)));
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}
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GrGLuint m_mostRecentlyAllocatedStorage;
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const GrGLInterface* m_gl;
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bool m_allowAllocation;
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};
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CustomTexture, reporter, context, glContext) {
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static const int kWidth = 13;
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static const int kHeight = 13;
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const GrGLInterface* gl = glContext->gl();
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TestStorageAllocator allocator;
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allocator.m_allowAllocation = true;
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allocator.m_gl = gl;
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GrTextureStorageAllocator grAllocator;
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grAllocator.fAllocateTextureStorage = &TestStorageAllocator::allocateTextureStorage;
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grAllocator.fDeallocateTextureStorage= &TestStorageAllocator::deallocateTextureStorage;
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grAllocator.fCtx = &allocator;
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SkAutoTUnref<SkSurface> surface(SkSurface_Gpu::NewRenderTarget(
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context, SkSurface_Gpu::kNo_Budgeted, SkImageInfo::MakeN32Premul(kWidth, kHeight), 0,
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NULL, grAllocator));
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REPORTER_ASSERT(reporter, surface);
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GrGLuint id = allocator.m_mostRecentlyAllocatedStorage;
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SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
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REPORTER_ASSERT(reporter, image->isTextureBacked());
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SkImageInfo imageInfo = SkImageInfo::MakeN32Premul(1,1);
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GrColor dest = 0x11223344;
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REPORTER_ASSERT(reporter, image->readPixels(imageInfo, &dest, 4 * kWidth, 0, 0));
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REPORTER_ASSERT(reporter, GrColorUnpackG(dest) == 0);
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surface->getCanvas()->clear(SK_ColorGREEN);
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SkAutoTUnref<SkImage> image2(surface->newImageSnapshot());
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REPORTER_ASSERT(reporter, image2->isTextureBacked());
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REPORTER_ASSERT(reporter, allocator.m_mostRecentlyAllocatedStorage != id);
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REPORTER_ASSERT(reporter, image2->readPixels(imageInfo, &dest, 4 * kWidth, 0, 0));
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REPORTER_ASSERT(reporter, GrColorUnpackG(dest) == 255);
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}
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DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CustomTextureFailure, reporter, context, glContext) {
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static const int kWidth = 13;
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static const int kHeight = 13;
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const GrGLInterface* gl = glContext->gl();
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TestStorageAllocator allocator;
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allocator.m_allowAllocation = false;
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allocator.m_gl = gl;
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GrTextureStorageAllocator grAllocator;
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grAllocator.fAllocateTextureStorage = &TestStorageAllocator::allocateTextureStorage;
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grAllocator.fDeallocateTextureStorage= &TestStorageAllocator::deallocateTextureStorage;
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grAllocator.fCtx = &allocator;
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SkAutoTUnref<SkSurface> surface(SkSurface_Gpu::NewRenderTarget(
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context, SkSurface_Gpu::kNo_Budgeted, SkImageInfo::MakeN32Premul(kWidth, kHeight), 0,
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NULL, grAllocator));
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REPORTER_ASSERT(reporter, !surface);
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}
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#endif
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