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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 && defined(SK_VULKAN)
#include "GrContextFactory.h"
#include "GrContextPriv.h"
#include "GrSurfaceProxy.h"
#include "GrTest.h"
#include "ProxyUtils.h"
#include "SkGr.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,
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, SkColorType ct,
bool renderTarget) {
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());
auto proxy = sk_gpu_test::MakeTextureProxyFromData(context, renderTarget, kWidth, kHeight, ct,
kTopLeft_GrSurfaceOrigin, srcBuffer, 0);
REPORTER_ASSERT(reporter, proxy);
if (proxy) {
sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(proxy);
SkImageInfo dstInfo = SkImageInfo::Make(kWidth, kHeight, ct, kOpaque_SkAlphaType);
bool result = sContext->readPixels(dstInfo, dstBuffer, 0, 0, 0);
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
kWidth,
kHeight));
dstInfo = SkImageInfo::Make(10, 2, ct, kOpaque_SkAlphaType);
result = sContext->writePixels(dstInfo, srcBuffer, 0, 2, 10);
REPORTER_ASSERT(reporter, result);
memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
result = sContext->readPixels(dstInfo, dstBuffer, 0, 2, 10);
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
10,
2));
}
proxy = sk_gpu_test::MakeTextureProxyFromData(context, renderTarget, kWidth, kHeight, ct,
kBottomLeft_GrSurfaceOrigin, srcBuffer, 0);
REPORTER_ASSERT(reporter, proxy);
if (proxy) {
sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(proxy);
SkImageInfo dstInfo = SkImageInfo::Make(kWidth, kHeight, ct, kOpaque_SkAlphaType);
bool result = sContext->readPixels(dstInfo, dstBuffer, 0, 0, 0);
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
kWidth,
kHeight));
dstInfo = SkImageInfo::Make(4, 5, ct, kOpaque_SkAlphaType);
result = sContext->writePixels(dstInfo, srcBuffer, 0, 5, 4);
REPORTER_ASSERT(reporter, result);
memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
result = sContext->readPixels(dstInfo, dstBuffer, 0, 5, 4);
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
dstBuffer,
4,
5));
}
}
DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests, reporter, ctxInfo) {
// RGBA
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_SkColorType, false);
basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_SkColorType, true);
// BGRA
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_SkColorType, false);
basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_SkColorType, true);
}
#endif
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