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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"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrRenderTargetContext.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLUtil.h"
#include "gl/GLTestContext.h"
static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context,
GrSurface* texture, uint32_t expectedPixelValues[]) {
int pixelCnt = texture->width() * texture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt);
bool read = texture->readPixels(0, 0, texture->width(), texture->height(),
kRGBA_8888_GrPixelConfig, pixels.get());
if (!read) {
ERRORF(reporter, "Error reading rectangle texture.");
}
for (int i = 0; i < pixelCnt; ++i) {
if (pixels.get()[i] != expectedPixelValues[i]) {
ERRORF(reporter, "Error, pixel value %d should be 0x%08x, got 0x%08x.", i,
expectedPixelValues[i], pixels.get()[i]);
break;
}
}
}
static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < rectangleTexture->width(); ++y) {
for (int x = 0; x < rectangleTexture->height(); ++x) {
pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(x, y, x + y, x * y);
}
}
bool write = rectangleTexture->writePixels(0, 0, rectangleTexture->width(),
rectangleTexture->height(), kRGBA_8888_GrPixelConfig,
pixels.get());
if (!write) {
ERRORF(reporter, "Error writing to rectangle texture.");
}
test_read_pixels(reporter, context, rectangleTexture, pixels.get());
}
static void test_copy_surface_src(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectTexture, uint32_t expectedPixelValues[]) {
GrSurfaceDesc copyDstDesc;
copyDstDesc.fConfig = kRGBA_8888_GrPixelConfig;
copyDstDesc.fWidth = rectTexture->width();
copyDstDesc.fHeight = rectTexture->height();
for (auto flags : {kNone_GrSurfaceFlags, kRenderTarget_GrSurfaceFlag}) {
copyDstDesc.fFlags = flags;
sk_sp<GrSurfaceProxy> dst(GrSurfaceProxy::TestCopy(context, copyDstDesc,
rectTexture, SkBudgeted::kYes));
GrSurface* dstSurf = dst->instantiate(context->textureProvider());
test_read_pixels(reporter, context, dstSurf, expectedPixelValues);
}
}
static void test_copy_surface_dst(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
sk_sp<GrSurfaceContext> sContext(context->contextPriv().makeWrappedSurfaceContext(
sk_ref_sp(rectangleTexture)));
int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < rectangleTexture->width(); ++y) {
for (int x = 0; x < rectangleTexture->height(); ++x) {
pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(y, x, x * y, x *+ y);
}
}
for (auto flags : {kNone_GrSurfaceFlags, kRenderTarget_GrSurfaceFlag}) {
GrSurfaceDesc copySrcDesc;
copySrcDesc.fConfig = kRGBA_8888_GrPixelConfig;
copySrcDesc.fWidth = rectangleTexture->width();
copySrcDesc.fHeight = rectangleTexture->height();
copySrcDesc.fFlags = flags;
sk_sp<GrSurfaceProxy> src(GrSurfaceProxy::MakeDeferred(*context->caps(),
context->textureProvider(),
copySrcDesc,
SkBudgeted::kYes, pixels.get(), 0));
sContext->copy(src.get());
test_read_pixels(reporter, context, rectangleTexture, pixels.get());
}
}
// skbug.com/5932
static void test_basic_draw(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {
sk_sp<GrRenderTargetContext> rtContext(
context->makeRenderTargetContext(SkBackingFit::kExact, rectangleTexture->width(),
rectangleTexture->height(), rectangleTexture->config(),
nullptr));
SkMatrix m;
m.setIDiv(rectangleTexture->width(), rectangleTexture->height());
for (auto filter : {GrSamplerParams::kNone_FilterMode,
GrSamplerParams::kBilerp_FilterMode,
GrSamplerParams::kMipMap_FilterMode}) {
rtContext->clear(nullptr, 0xDDCCBBAA, true);
sk_sp<GrFragmentProcessor> fp(GrSimpleTextureEffect::Make(rectangleTexture,
nullptr, m, filter));
GrPaint paint;
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.addColorFragmentProcessor(std::move(fp));
rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
test_read_pixels(reporter, context, rtContext->asTexture().get(), expectedPixelValues);
}
}
static void test_clear(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
if (rectangleTexture->asRenderTarget()) {
sk_sp<GrRenderTargetContext> rtc(context->contextPriv().makeWrappedRenderTargetContext(
sk_ref_sp(rectangleTexture->asRenderTarget()),
nullptr));
if (!rtc) {
ERRORF(reporter, "Could not get GrRenderTargetContext for rectangle texture.");
return;
}
// Clear the whole thing.
GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD);
rtc->clear(nullptr, color0, false);
int w = rectangleTexture->width();
int h = rectangleTexture->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 < rectangleTexture->width() * rectangleTexture->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, false);
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, context, rectangleTexture, expectedPixels.get());
}
}
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
GrContext* context = ctxInfo.grContext();
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 (int origin = 0; origin < 2; ++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;
GrBackendTextureDesc rectangleDesc;
rectangleDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
rectangleDesc.fConfig = kRGBA_8888_GrPixelConfig;
rectangleDesc.fWidth = kWidth;
rectangleDesc.fHeight = kHeight;
rectangleDesc.fOrigin = origin ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin;
rectangleDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&rectangleInfo);
GrColor refPixels[kWidth * kHeight];
bool flipRef = rectangleDesc.fOrigin == kBottomLeft_GrSurfaceOrigin;
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
int y0 = flipRef ? kHeight - y - 1 : y;
refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
}
}
sk_sp<GrTexture> rectangleTexture(
context->textureProvider()->wrapBackendTexture(rectangleDesc));
if (!rectangleTexture) {
ERRORF(reporter, "Error wrapping rectangle texture in GrTexture.");
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
continue;
}
test_read_pixels(reporter, context, rectangleTexture.get(), refPixels);
test_basic_draw(reporter, context, rectangleTexture.get(), refPixels);
test_copy_surface_src(reporter, context, rectangleTexture.get(), refPixels);
test_copy_surface_dst(reporter, context, rectangleTexture.get());
test_write_pixels(reporter, context, rectangleTexture.get());
test_clear(reporter, context, rectangleTexture.get());
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
}
}
#endif
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