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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// This is a GPU-backend specific test. It relies on static intializers to work
#include "SkTypes.h"
#if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS && defined(SK_VULKAN)
#include "GrContextFactory.h"
#include "GrTest.h"
#include "Test.h"
#include "vk/GrVkGpu.h"
using sk_gpu_test::GrContextFactory;
void fill_pixel_data(int width, int height, GrColor* data) {
// build red-green gradient
for (int j = 0; j < height; ++j) {
for (int i = 0; i < width; ++i) {
unsigned int red = (unsigned int)(256.f*(i / (float)width));
unsigned int green = (unsigned int)(256.f*(j / (float)height));
data[i + j*width] = GrColorPackRGBA(red - (red>>8), green - (green>>8), 0xff, 0xff);
}
}
}
bool does_full_buffer_contain_correct_color(GrColor* srcBuffer,
GrColor* dstBuffer,
GrPixelConfig config,
int width,
int height) {
GrColor* srcPtr = srcBuffer;
GrColor* dstPtr = dstBuffer;
for (int j = 0; j < height; ++j) {
for (int i = 0; i < width; ++i) {
if (srcPtr[i] != dstPtr[i]) {
return false;
}
}
srcPtr += width;
dstPtr += width;
}
return true;
}
void basic_texture_test(skiatest::Reporter* reporter, GrContext* context, GrPixelConfig config,
bool renderTarget, bool linearTiling) {
GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
const int kWidth = 16;
const int kHeight = 16;
SkAutoTMalloc<GrColor> srcBuffer(kWidth*kHeight);
SkAutoTMalloc<GrColor> dstBuffer(kWidth*kHeight);
fill_pixel_data(kWidth, kHeight, srcBuffer.get());
const GrVkCaps* caps = reinterpret_cast<const GrVkCaps*>(context->caps());
bool canCreate = true;
// the expectation is that the given config is texturable/renderable with optimal tiling
// but may not be with linear tiling
if (linearTiling) {
if (!caps->isConfigTexturableLinearly(config) ||
(renderTarget && !caps->isConfigRenderableLinearly(config, false))) {
canCreate = false;
}
}
GrSurfaceDesc surfDesc;
surfDesc.fFlags = renderTarget ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
if (linearTiling) {
surfDesc.fFlags |= kZeroCopy_GrSurfaceFlag;
}
surfDesc.fOrigin = kTopLeft_GrSurfaceOrigin;
surfDesc.fWidth = kWidth;
surfDesc.fHeight = kHeight;
surfDesc.fConfig = config;
surfDesc.fSampleCnt = 0;
GrTexture* tex0 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
if (tex0) {
REPORTER_ASSERT(reporter, canCreate);
gpu->readPixels(tex0, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
config,
kWidth,
kHeight));
tex0->writePixels(2, 10, 10, 2, config, srcBuffer);
memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
gpu->readPixels(tex0, 2, 10, 10, 2, config, dstBuffer, 0);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
config,
10,
2));
tex0->unref();
} else {
REPORTER_ASSERT(reporter, !canCreate);
}
surfDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
GrTexture* tex1 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
if (tex1) {
REPORTER_ASSERT(reporter, canCreate);
gpu->readPixels(tex1, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
config,
kWidth,
kHeight));
tex1->writePixels(5, 4, 4, 5, config, srcBuffer);
memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
gpu->readPixels(tex1, 5, 4, 4, 5, config, dstBuffer, 0);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
config,
4,
5));
tex1->unref();
} else {
REPORTER_ASSERT(reporter, !canCreate);
}
}
DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests, reporter, ctxInfo) {
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, false, false);
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, true, false);
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, false, true);
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, true, true);
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, false, false);
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, true, false);
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, false, true);
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, true, true);
}
#endif
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