58389b90cd
The first bytes of the data always refer to the pixel accessed by texture coord (0, 0). Change-Id: I708702d90f35b3bc896a48c3c3fd6a0be73f505a Reviewed-on: https://skia-review.googlesource.com/112261 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
120 lines
4.4 KiB
C++
120 lines
4.4 KiB
C++
/*
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* Copyright 2017 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 "TestUtils.h"
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#if SK_SUPPORT_GPU
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#include "GrProxyProvider.h"
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#include "GrSurfaceContext.h"
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#include "GrSurfaceContextPriv.h"
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#include "GrSurfaceProxy.h"
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#include "GrTextureProxy.h"
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#include "ProxyUtils.h"
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void test_read_pixels(skiatest::Reporter* reporter,
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GrSurfaceContext* srcContext, uint32_t expectedPixelValues[],
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const char* testName) {
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int pixelCnt = srcContext->width() * srcContext->height();
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SkAutoTMalloc<uint32_t> pixels(pixelCnt);
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memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt);
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SkImageInfo ii = SkImageInfo::Make(srcContext->width(), srcContext->height(),
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kRGBA_8888_SkColorType, kPremul_SkAlphaType);
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bool read = srcContext->readPixels(ii, pixels.get(), 0, 0, 0);
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if (!read) {
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ERRORF(reporter, "%s: Error reading from texture.", testName);
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}
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for (int i = 0; i < pixelCnt; ++i) {
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if (pixels.get()[i] != expectedPixelValues[i]) {
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ERRORF(reporter, "%s: Error, pixel value %d should be 0x%08x, got 0x%08x.",
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testName, i, expectedPixelValues[i], pixels.get()[i]);
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break;
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}
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}
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}
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void test_write_pixels(skiatest::Reporter* reporter,
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GrSurfaceContext* dstContext, bool expectedToWork,
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const char* testName) {
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int pixelCnt = dstContext->width() * dstContext->height();
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SkAutoTMalloc<uint32_t> pixels(pixelCnt);
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for (int y = 0; y < dstContext->width(); ++y) {
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for (int x = 0; x < dstContext->height(); ++x) {
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pixels.get()[y * dstContext->width() + x] =
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GrPremulColor(GrColorPackRGBA(x, y, x + y, 2*y));
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}
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}
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SkImageInfo ii = SkImageInfo::Make(dstContext->width(), dstContext->height(),
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kRGBA_8888_SkColorType, kPremul_SkAlphaType);
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bool write = dstContext->writePixels(ii, pixels.get(), 0, 0, 0);
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if (!write) {
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if (expectedToWork) {
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ERRORF(reporter, "%s: Error writing to texture.", testName);
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}
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return;
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}
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if (write && !expectedToWork) {
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ERRORF(reporter, "%s: writePixels succeeded when it wasn't supposed to.", testName);
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return;
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}
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test_read_pixels(reporter, dstContext, pixels.get(), testName);
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}
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void test_copy_from_surface(skiatest::Reporter* reporter, GrContext* context,
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GrSurfaceProxy* proxy, uint32_t expectedPixelValues[],
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bool onlyTestRTConfig, const char* testName) {
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GrSurfaceDesc copyDstDesc;
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copyDstDesc.fWidth = proxy->width();
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copyDstDesc.fHeight = proxy->height();
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copyDstDesc.fConfig = kRGBA_8888_GrPixelConfig;
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for (auto flags : { kNone_GrSurfaceFlags, kRenderTarget_GrSurfaceFlag }) {
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if (kNone_GrSurfaceFlags == flags && onlyTestRTConfig) {
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continue;
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}
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copyDstDesc.fFlags = flags;
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auto origin = (kNone_GrSurfaceFlags == flags) ? kTopLeft_GrSurfaceOrigin
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: kBottomLeft_GrSurfaceOrigin;
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sk_sp<GrSurfaceContext> dstContext(
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GrSurfaceProxy::TestCopy(context, copyDstDesc, origin, proxy));
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test_read_pixels(reporter, dstContext.get(), expectedPixelValues, testName);
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}
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}
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void test_copy_to_surface(skiatest::Reporter* reporter, GrProxyProvider* proxyProvider,
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GrSurfaceContext* dstContext, const char* testName) {
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int pixelCnt = dstContext->width() * dstContext->height();
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SkAutoTMalloc<uint32_t> pixels(pixelCnt);
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for (int y = 0; y < dstContext->width(); ++y) {
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for (int x = 0; x < dstContext->height(); ++x) {
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pixels.get()[y * dstContext->width() + x] =
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GrPremulColor(GrColorPackRGBA(y, x, x * y, 2*y));
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}
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}
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for (auto isRT : {false, true}) {
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for (auto origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
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auto src = sk_gpu_test::MakeTextureProxyFromData(
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dstContext->surfPriv().getContext(), isRT, dstContext->width(),
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dstContext->height(), GrColorType::kRGBA_8888, origin, pixels.get(), 0);
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dstContext->copy(src.get());
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test_read_pixels(reporter, dstContext, pixels.get(), testName);
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}
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}
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}
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#endif
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