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/*
* Copyright 2016 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 "gl/GrGLGpu.h"
#include "GrContext.h"
#include "SkSurface_Gpu.h"
#include "../include/gpu/gl/SkGLContext.h"
#include "../include/gpu/GrTypes.h"
#include "../include/private/SkTemplates.h"
class TestStorageAllocator {
public:
static GrTextureStorageAllocator::Result allocateTextureStorage(void* ctx,
GrBackendObject texture, unsigned width, unsigned height, GrPixelConfig config,
const void* srcData, GrSurfaceOrigin) {
TestStorageAllocator* allocator = static_cast<TestStorageAllocator*>(ctx);
if (!allocator->m_allowAllocation)
return GrTextureStorageAllocator::Result::kFailed;
SkAutoTMalloc<uint8_t> pixels(width * height * 4);
memset(pixels.get(), 0, width * height * 4);
GrGLuint id;
GrGLenum target = GR_GL_TEXTURE_2D;
GR_GL_CALL(allocator->m_gl, GenTextures(1, &id));
GR_GL_CALL(allocator->m_gl, BindTexture(target, id));
GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST));
GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST));
GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(allocator->m_gl, TexParameteri(target, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(allocator->m_gl, TexImage2D(target, 0, GR_GL_RGBA, width, height, 0, GR_GL_RGBA,
GR_GL_UNSIGNED_BYTE, pixels.get()));
GrGLTextureInfo* info = reinterpret_cast<GrGLTextureInfo*>(texture);
info->fID = id;
info->fTarget = target;
allocator->m_mostRecentlyAllocatedStorage = id;
return GrTextureStorageAllocator::Result::kSucceededWithoutUpload;
}
static void deallocateTextureStorage(void* ctx, GrBackendObject texture) {
TestStorageAllocator* allocator = static_cast<TestStorageAllocator*>(ctx);
GrGLTextureInfo* info = reinterpret_cast<GrGLTextureInfo*>(texture);
GR_GL_CALL(allocator->m_gl, DeleteTextures(1, &(info->fID)));
}
GrGLuint m_mostRecentlyAllocatedStorage;
const GrGLInterface* m_gl;
bool m_allowAllocation;
};
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CustomTexture, reporter, context, glContext) {
static const int kWidth = 13;
static const int kHeight = 13;
const GrGLInterface* gl = glContext->gl();
TestStorageAllocator allocator;
allocator.m_allowAllocation = true;
allocator.m_gl = gl;
GrTextureStorageAllocator grAllocator;
grAllocator.fAllocateTextureStorage = &TestStorageAllocator::allocateTextureStorage;
grAllocator.fDeallocateTextureStorage= &TestStorageAllocator::deallocateTextureStorage;
grAllocator.fCtx = &allocator;
SkAutoTUnref<SkSurface> surface(SkSurface_Gpu::NewRenderTarget(
context, SkBudgeted::kNo, SkImageInfo::MakeN32Premul(kWidth, kHeight), 0,
NULL, grAllocator));
REPORTER_ASSERT(reporter, surface);
GrGLuint id = allocator.m_mostRecentlyAllocatedStorage;
SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
REPORTER_ASSERT(reporter, image->isTextureBacked());
SkImageInfo imageInfo = SkImageInfo::MakeN32Premul(1,1);
GrColor dest = 0x11223344;
REPORTER_ASSERT(reporter, image->readPixels(imageInfo, &dest, 4 * kWidth, 0, 0));
REPORTER_ASSERT(reporter, GrColorUnpackG(dest) == 0);
surface->getCanvas()->clear(SK_ColorGREEN);
SkAutoTUnref<SkImage> image2(surface->newImageSnapshot());
REPORTER_ASSERT(reporter, image2->isTextureBacked());
REPORTER_ASSERT(reporter, allocator.m_mostRecentlyAllocatedStorage != id);
REPORTER_ASSERT(reporter, image2->readPixels(imageInfo, &dest, 4 * kWidth, 0, 0));
REPORTER_ASSERT(reporter, GrColorUnpackG(dest) == 255);
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CustomTextureFailure, reporter, context, glContext) {
static const int kWidth = 13;
static const int kHeight = 13;
const GrGLInterface* gl = glContext->gl();
TestStorageAllocator allocator;
allocator.m_allowAllocation = false;
allocator.m_gl = gl;
GrTextureStorageAllocator grAllocator;
grAllocator.fAllocateTextureStorage = &TestStorageAllocator::allocateTextureStorage;
grAllocator.fDeallocateTextureStorage= &TestStorageAllocator::deallocateTextureStorage;
grAllocator.fCtx = &allocator;
SkAutoTUnref<SkSurface> surface(SkSurface_Gpu::NewRenderTarget(
context, SkBudgeted::kNo, SkImageInfo::MakeN32Premul(kWidth, kHeight), 0,
NULL, grAllocator));
REPORTER_ASSERT(reporter, !surface);
}
#endif
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