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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.
*/
#include "Test.h"
#include "TestUtils.h"
#if SK_SUPPORT_GPU
#include "GrClip.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrProxyProvider.h"
#include "GrRenderTargetContext.h"
#include "GrTest.h"
#include "gl/GLTestContext.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLUtil.h"
// skbug.com/5932
static void test_basic_draw_as_src(skiatest::Reporter* reporter, GrContext* context,
sk_sp<GrTextureProxy> rectProxy, uint32_t expectedPixelValues[]) {
sk_sp<GrRenderTargetContext> rtContext(
context->makeDeferredRenderTargetContext(SkBackingFit::kExact, rectProxy->width(),
rectProxy->height(), rectProxy->config(),
nullptr));
for (auto filter : {GrSamplerState::Filter::kNearest,
GrSamplerState::Filter::kBilerp,
GrSamplerState::Filter::kMipMap}) {
rtContext->clear(nullptr, 0xDDCCBBAA, GrRenderTargetContext::CanClearFullscreen::kYes);
auto fp = GrSimpleTextureEffect::Make(rectProxy, SkMatrix::I(), filter);
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(std::move(fp));
rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
test_read_pixels(reporter, rtContext.get(), expectedPixelValues,
"RectangleTexture-basic-draw");
}
}
static void test_clear(skiatest::Reporter* reporter, GrSurfaceContext* rectContext) {
if (GrRenderTargetContext* rtc = rectContext->asRenderTargetContext()) {
// Clear the whole thing.
GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD);
rtc->clear(nullptr, color0, GrRenderTargetContext::CanClearFullscreen::kNo);
int w = rtc->width();
int h = rtc->height();
int pixelCnt = w * h;
SkAutoTMalloc<uint32_t> expectedPixels(pixelCnt);
// The clear color is a GrColor, our readback is to kRGBA_8888, which may be different.
uint32_t expectedColor0 = 0;
uint8_t* expectedBytes0 = SkTCast<uint8_t*>(&expectedColor0);
expectedBytes0[0] = GrColorUnpackR(color0);
expectedBytes0[1] = GrColorUnpackG(color0);
expectedBytes0[2] = GrColorUnpackB(color0);
expectedBytes0[3] = GrColorUnpackA(color0);
for (int i = 0; i < rtc->width() * rtc->height(); ++i) {
expectedPixels.get()[i] = expectedColor0;
}
// Clear the the top to a different color.
GrColor color1 = GrColorPackRGBA(0x1, 0x2, 0x3, 0x4);
SkIRect rect = SkIRect::MakeWH(w, h/2);
rtc->clear(&rect, color1, GrRenderTargetContext::CanClearFullscreen::kNo);
uint32_t expectedColor1 = 0;
uint8_t* expectedBytes1 = SkTCast<uint8_t*>(&expectedColor1);
expectedBytes1[0] = GrColorUnpackR(color1);
expectedBytes1[1] = GrColorUnpackG(color1);
expectedBytes1[2] = GrColorUnpackB(color1);
expectedBytes1[3] = GrColorUnpackA(color1);
for (int y = 0; y < h/2; ++y) {
for (int x = 0; x < w; ++x) {
expectedPixels.get()[y * h + x] = expectedColor1;
}
}
test_read_pixels(reporter, rtc, expectedPixels.get(), "RectangleTexture-clear");
}
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext();
static const int kWidth = 13;
static const int kHeight = 13;
GrColor pixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
pixels[y * kWidth + x] = y * kWidth + x;
}
}
for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
bool useBLOrigin = kBottomLeft_GrSurfaceOrigin == origin;
GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
pixels);
if (!rectTexID) {
return;
}
// Let GrContext know that we messed with the GL context directly.
context->resetContext();
// Wrap the rectangle texture ID in a GrTexture
GrGLTextureInfo rectangleInfo;
rectangleInfo.fID = rectTexID;
rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
GrBackendTexture rectangleTex(kWidth, kHeight, kRGBA_8888_GrPixelConfig, rectangleInfo);
GrColor refPixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
int y0 = useBLOrigin ? kHeight - y - 1 : y;
refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
}
}
sk_sp<GrTextureProxy> rectProxy = proxyProvider->createWrappedTextureProxy(
rectangleTex, origin);
if (!rectProxy) {
ERRORF(reporter, "Error creating proxy for rectangle texture.");
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
continue;
}
test_basic_draw_as_src(reporter, context, rectProxy, refPixels);
// Test copy to both a texture and RT
test_copy_from_surface(reporter, context, rectProxy.get(), refPixels,
false, "RectangleTexture-copy-from");
sk_sp<GrSurfaceContext> rectContext = context->contextPriv().makeWrappedSurfaceContext(
std::move(rectProxy));
SkASSERT(rectContext);
test_read_pixels(reporter, rectContext.get(), refPixels, "RectangleTexture-read");
test_copy_to_surface(reporter, context->contextPriv().proxyProvider(),
rectContext.get(), "RectangleTexture-copy-to");
test_write_pixels(reporter, rectContext.get(), true, "RectangleTexture-write");
test_clear(reporter, rectContext.get());
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
}
}
#endif
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