skia2/tests/GrTestingBackendTextureUploadTest.cpp

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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkTypes.h"
#include "GrGpu.h"
#include "GrContextPriv.h"
#include "GrTexture.h"
#include "SkConvertPixels.h"
#include "Test.h"
#include "TestUtils.h"
void testing_only_texture_test(skiatest::Reporter* reporter, GrContext* context, GrColorType ct,
bool renderTarget, bool doDataUpload, GrMipMapped mipMapped) {
const int kWidth = 16;
const int kHeight = 16;
SkAutoTMalloc<GrColor> srcBuffer;
if (doDataUpload) {
srcBuffer.reset(kWidth * kHeight);
fill_pixel_data(kWidth, kHeight, srcBuffer.get());
}
SkAutoTMalloc<GrColor> dstBuffer(kWidth * kHeight);
GrGpu* gpu = context->contextPriv().getGpu();
GrPixelConfig config = GrColorTypeToPixelConfig(ct, GrSRGBEncoded::kNo);
if (!gpu->caps()->isConfigTexturable(config)) {
return;
}
if (gpu->caps()->supportedReadPixelsColorType(config, ct) != ct) {
return;
}
GrBackendTexture backendTex = gpu->createTestingOnlyBackendTexture(srcBuffer,
kWidth,
kHeight,
ct,
renderTarget,
mipMapped);
if (!backendTex.isValid()) {
return;
}
sk_sp<GrTexture> wrappedTex;
if (renderTarget) {
wrappedTex = gpu->wrapRenderableBackendTexture(backendTex, 1,
GrWrapOwnership::kAdopt_GrWrapOwnership);
} else {
wrappedTex = gpu->wrapBackendTexture(backendTex,
GrWrapOwnership::kAdopt_GrWrapOwnership);
}
REPORTER_ASSERT(reporter, wrappedTex);
int rowBytes = GrColorTypeBytesPerPixel(ct) * kWidth;
bool result = gpu->readPixels(wrappedTex.get(), 0, 0, kWidth,
kHeight, ct, dstBuffer, rowBytes);
if (!doDataUpload) {
// createTestingOnlyBackendTexture will fill the texture with 0's if no data is provided, so
// we set the expected result likewise.
srcBuffer.reset(kWidth * kHeight);
memset(srcBuffer, 0, kWidth * kHeight * sizeof(GrColor));
}
REPORTER_ASSERT(reporter, result);
REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer, dstBuffer,
kWidth, kHeight));
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(GrTestingBackendTextureUploadTest, reporter, ctxInfo) {
for (auto colorType: { GrColorType::kRGBA_8888, GrColorType::kBGRA_8888 }) {
for (bool renderable: {true, false}) {
for (bool doDataUpload: {true, false}) {
testing_only_texture_test(reporter, ctxInfo.grContext(), colorType,
renderable, doDataUpload, GrMipMapped::kNo);
if (!doDataUpload) {
testing_only_texture_test(reporter, ctxInfo.grContext(), colorType,
renderable, doDataUpload, GrMipMapped::kYes);
}
}
}
}
}