7fde8e1728
This almost gets gms to be iwyu clean. The last bit is around gm.cpp and the tracing framework and its use of atomic. Will also need a way of keeping things from regressing, which is difficult due to needing to do this outside-in. Change-Id: I1393531e99da8b0f1a29f55c53c86d53f459af7d Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211593 Reviewed-by: Herb Derby <herb@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
244 lines
9.5 KiB
C++
244 lines
9.5 KiB
C++
/*
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* Copyright 2015 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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// This test only works with the GPU backend.
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#include "gm/gm.h"
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#include "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkColorFilter.h"
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#include "include/core/SkColorPriv.h"
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#include "include/core/SkImage.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPixmap.h"
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#include "include/core/SkPoint.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkShader.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTileMode.h"
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#include "include/core/SkTypes.h"
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#include "include/effects/SkGradientShader.h"
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#include "include/gpu/GrBackendSurface.h"
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#include "include/gpu/GrContext.h"
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#include "include/gpu/GrTypes.h"
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#include "include/private/GrTypesPriv.h"
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#include "include/private/SkTo.h"
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#include "src/gpu/GrContextPriv.h"
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#include "src/gpu/GrGpu.h"
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class GrRenderTargetContext;
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static sk_sp<SkColorFilter> yuv_to_rgb_colorfilter() {
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static const float kJPEGConversionMatrix[20] = {
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1.0f, 0.0f, 1.402f, 0.0f, -180.0f/255,
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1.0f, -0.344136f, -0.714136f, 0.0f, 136.0f/255,
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1.0f, 1.772f, 0.0f, 0.0f, -227.6f/255,
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0.0f, 0.0f, 0.0f, 1.0f, 0.0f
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};
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return SkColorFilters::Matrix(kJPEGConversionMatrix);
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}
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namespace skiagm {
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class ImageFromYUVTextures : public GpuGM {
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public:
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ImageFromYUVTextures() {
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this->setBGColor(0xFFFFFFFF);
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}
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protected:
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SkString onShortName() override {
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return SkString("image_from_yuv_textures");
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}
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SkISize onISize() override {
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return SkISize::Make(kBmpSize + 2 * kPad, 390);
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}
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void onOnceBeforeDraw() override {
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// We create an RGB bitmap and then extract YUV bmps where the U and V bitmaps are
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// subsampled by 2 in both dimensions.
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SkPaint paint;
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constexpr SkColor kColors[] =
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{ SK_ColorBLUE, SK_ColorYELLOW, SK_ColorGREEN, SK_ColorWHITE };
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paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(0,0), kBmpSize / 2.f, kColors,
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nullptr, SK_ARRAY_COUNT(kColors),
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SkTileMode::kMirror));
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SkBitmap rgbBmp;
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rgbBmp.allocN32Pixels(kBmpSize, kBmpSize, true);
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SkCanvas canvas(rgbBmp);
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canvas.drawPaint(paint);
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SkPMColor* rgbColors = static_cast<SkPMColor*>(rgbBmp.getPixels());
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SkImageInfo yinfo = SkImageInfo::MakeA8(kBmpSize, kBmpSize);
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fYUVBmps[0].allocPixels(yinfo);
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SkImageInfo uinfo = SkImageInfo::MakeA8(kBmpSize / 2, kBmpSize / 2);
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fYUVBmps[1].allocPixels(uinfo);
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SkImageInfo vinfo = SkImageInfo::MakeA8(kBmpSize / 2, kBmpSize / 2);
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fYUVBmps[2].allocPixels(vinfo);
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unsigned char* yPixels;
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signed char* uvPixels[2];
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yPixels = static_cast<unsigned char*>(fYUVBmps[0].getPixels());
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uvPixels[0] = static_cast<signed char*>(fYUVBmps[1].getPixels());
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uvPixels[1] = static_cast<signed char*>(fYUVBmps[2].getPixels());
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// Here we encode using the kJPEG_SkYUVColorSpace (i.e., full-swing Rec 601) even though
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// we will draw it with all the supported yuv color spaces when converted back to RGB
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for (int i = 0; i < kBmpSize * kBmpSize; ++i) {
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yPixels[i] = static_cast<unsigned char>(0.299f * SkGetPackedR32(rgbColors[i]) +
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0.587f * SkGetPackedG32(rgbColors[i]) +
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0.114f * SkGetPackedB32(rgbColors[i]));
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}
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for (int j = 0; j < kBmpSize / 2; ++j) {
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for (int i = 0; i < kBmpSize / 2; ++i) {
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// Average together 4 pixels of RGB.
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int rgb[] = { 0, 0, 0 };
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for (int y = 0; y < 2; ++y) {
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for (int x = 0; x < 2; ++x) {
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int rgbIndex = (2 * j + y) * kBmpSize + 2 * i + x;
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rgb[0] += SkGetPackedR32(rgbColors[rgbIndex]);
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rgb[1] += SkGetPackedG32(rgbColors[rgbIndex]);
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rgb[2] += SkGetPackedB32(rgbColors[rgbIndex]);
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}
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}
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for (int c = 0; c < 3; ++c) {
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rgb[c] /= 4;
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}
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int uvIndex = j * kBmpSize / 2 + i;
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uvPixels[0][uvIndex] = static_cast<signed char>(
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((-38 * rgb[0] - 74 * rgb[1] + 112 * rgb[2] + 128) >> 8) + 128);
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uvPixels[1][uvIndex] = static_cast<signed char>(
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((112 * rgb[0] - 94 * rgb[1] - 18 * rgb[2] + 128) >> 8) + 128);
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}
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}
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fRGBImage = SkImage::MakeRasterCopy(SkPixmap(rgbBmp.info(), rgbColors, rgbBmp.rowBytes()));
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}
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void createYUVTextures(GrContext* context, GrBackendTexture yuvTextures[3]) {
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GrGpu* gpu = context->priv().getGpu();
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if (!gpu) {
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return;
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}
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for (int i = 0; i < 3; ++i) {
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SkASSERT(fYUVBmps[i].width() == SkToInt(fYUVBmps[i].rowBytes()));
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yuvTextures[i] = gpu->createTestingOnlyBackendTexture(fYUVBmps[i].getPixels(),
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fYUVBmps[i].width(),
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fYUVBmps[i].height(),
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GrColorType::kAlpha_8,
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false, GrMipMapped::kNo);
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}
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context->resetContext();
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}
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void createResultTexture(GrContext* context, int width, int height,
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GrBackendTexture* resultTexture) {
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GrGpu* gpu = context->priv().getGpu();
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if (!gpu) {
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return;
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}
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*resultTexture = gpu->createTestingOnlyBackendTexture(
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nullptr, width, height, GrColorType::kRGBA_8888, true, GrMipMapped::kNo);
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context->resetContext();
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}
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void deleteBackendTextures(GrContext* context, GrBackendTexture textures[], int n) {
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if (context->abandoned()) {
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return;
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}
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GrGpu* gpu = context->priv().getGpu();
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if (!gpu) {
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return;
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}
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context->flush();
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gpu->testingOnly_flushGpuAndSync();
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for (int i = 0; i < n; ++i) {
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if (textures[i].isValid()) {
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gpu->deleteTestingOnlyBackendTexture(textures[i]);
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}
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}
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context->resetContext();
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}
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void onDraw(GrContext* context, GrRenderTargetContext*, SkCanvas* canvas) override {
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// draw the original
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SkScalar yOffset = kPad;
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canvas->drawImage(fRGBImage.get(), kPad, yOffset);
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yOffset += kBmpSize + kPad;
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for (int space = kJPEG_SkYUVColorSpace; space <= kLastEnum_SkYUVColorSpace; ++space) {
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GrBackendTexture yuvTextures[3];
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this->createYUVTextures(context, yuvTextures);
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auto image = SkImage::MakeFromYUVTexturesCopy(context,
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static_cast<SkYUVColorSpace>(space),
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yuvTextures,
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kTopLeft_GrSurfaceOrigin);
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this->deleteBackendTextures(context, yuvTextures, 3);
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SkPaint paint;
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if (kIdentity_SkYUVColorSpace == space) {
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// The identity color space needs post-processing to appear correct
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paint.setColorFilter(yuv_to_rgb_colorfilter());
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}
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canvas->drawImage(image.get(), kPad, yOffset, &paint);
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yOffset += kBmpSize + kPad;
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}
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for (int space = kJPEG_SkYUVColorSpace; space <= kLastEnum_SkYUVColorSpace; ++space) {
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GrBackendTexture yuvTextures[3];
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GrBackendTexture resultTexture;
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this->createYUVTextures(context, yuvTextures);
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this->createResultTexture(
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context, yuvTextures[0].width(), yuvTextures[0].height(), &resultTexture);
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auto image = SkImage::MakeFromYUVTexturesCopyWithExternalBackend(
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context,
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static_cast<SkYUVColorSpace>(space),
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yuvTextures,
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kTopLeft_GrSurfaceOrigin,
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resultTexture);
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SkPaint paint;
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if (kIdentity_SkYUVColorSpace == space) {
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// The identity color space needs post-processing to appear correct
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paint.setColorFilter(yuv_to_rgb_colorfilter());
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}
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canvas->drawImage(image.get(), kPad, yOffset, &paint);
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yOffset += kBmpSize + kPad;
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GrBackendTexture texturesToDelete[4]{
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yuvTextures[0],
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yuvTextures[1],
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yuvTextures[2],
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resultTexture,
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};
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this->deleteBackendTextures(context, texturesToDelete, 4);
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}
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}
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private:
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sk_sp<SkImage> fRGBImage;
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SkBitmap fYUVBmps[3];
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static constexpr SkScalar kPad = 10.0f;
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static constexpr int kBmpSize = 32;
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typedef GM INHERITED;
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};
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DEF_GM(return new ImageFromYUVTextures;)
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}
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