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- // Copyright 2016 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "gpu/command_buffer/client/gl_helper.h"
- #include <GLES2/gl2.h>
- #include <GLES2/gl2ext.h>
- #include <GLES2/gl2extchromium.h>
- #include <algorithm>
- #include <cmath>
- #include <memory>
- #include <string>
- #include <tuple>
- #include <utility>
- #include <vector>
- #include "base/bind.h"
- #include "base/cxx17_backports.h"
- #include "base/memory/raw_ptr.h"
- #include "base/memory/ref_counted_memory.h"
- #include "base/run_loop.h"
- #include "base/strings/stringprintf.h"
- #include "base/synchronization/waitable_event.h"
- #include "base/test/scoped_feature_list.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "build/build_config.h"
- #include "components/viz/test/test_gpu_service_holder.h"
- #include "gpu/command_buffer/client/gl_helper_scaling.h"
- #include "gpu/command_buffer/client/gles2_implementation.h"
- #include "gpu/command_buffer/client/shared_memory_limits.h"
- #include "gpu/ipc/gl_in_process_context.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "third_party/skia/include/core/SkBitmap.h"
- #if !BUILDFLAG(IS_ANDROID)
- namespace gpu {
- namespace {
- GLHelper::ScalerQuality kQualities[] = {
- GLHelper::SCALER_QUALITY_BEST,
- GLHelper::SCALER_QUALITY_GOOD,
- GLHelper::SCALER_QUALITY_FAST,
- };
- const char* kQualityNames[] = {
- "best",
- "good",
- "fast",
- };
- } // namespace
- class GLHelperTest : public testing::Test {
- protected:
- void SetUp() override {
- feature_list_.Init();
- ContextCreationAttribs attributes;
- attributes.alpha_size = 8;
- attributes.depth_size = 24;
- attributes.red_size = 8;
- attributes.green_size = 8;
- attributes.blue_size = 8;
- attributes.stencil_size = 8;
- attributes.samples = 4;
- attributes.sample_buffers = 1;
- attributes.bind_generates_resource = false;
- context_ = std::make_unique<GLInProcessContext>();
- auto result = context_->Initialize(
- viz::TestGpuServiceHolder::GetInstance()->task_executor(), attributes,
- SharedMemoryLimits(), /*image_factory=*/nullptr);
- DCHECK_EQ(result, ContextResult::kSuccess);
- gl_ = context_->GetImplementation();
- ContextSupport* support = context_->GetImplementation();
- helper_ = std::make_unique<GLHelper>(gl_, support);
- helper_scaling_ = std::make_unique<GLHelperScaling>(gl_, helper_.get());
- }
- void TearDown() override {
- helper_scaling_.reset(nullptr);
- helper_.reset(nullptr);
- context_.reset(nullptr);
- }
- // Bicubic filter kernel function.
- static float Bicubic(float x) {
- const float a = -0.5;
- x = std::abs(x);
- float x2 = x * x;
- float x3 = x2 * x;
- if (x <= 1) {
- return (a + 2) * x3 - (a + 3) * x2 + 1;
- } else if (x < 2) {
- return a * x3 - 5 * a * x2 + 8 * a * x - 4 * a;
- } else {
- return 0.0f;
- }
- }
- // Look up a single channel value. Works for 4-channel and single channel
- // bitmaps. Clamp x/y.
- int Channel(SkBitmap* pixels, int x, int y, int c) {
- if (pixels->bytesPerPixel() == 4) {
- uint32_t* data =
- pixels->getAddr32(base::clamp(x, 0, pixels->width() - 1),
- base::clamp(y, 0, pixels->height() - 1));
- return (*data) >> (c * 8) & 0xff;
- } else {
- DCHECK_EQ(pixels->bytesPerPixel(), 1);
- DCHECK_EQ(c, 0);
- return *pixels->getAddr8(base::clamp(x, 0, pixels->width() - 1),
- base::clamp(y, 0, pixels->height() - 1));
- }
- }
- // Set a single channel value. Works for 4-channel and single channel
- // bitmaps. Clamp x/y.
- void SetChannel(SkBitmap* pixels, int x, int y, int c, int v) {
- DCHECK_GE(x, 0);
- DCHECK_GE(y, 0);
- DCHECK_LT(x, pixels->width());
- DCHECK_LT(y, pixels->height());
- if (pixels->bytesPerPixel() == 4) {
- uint32_t* data = pixels->getAddr32(x, y);
- v = base::clamp(v, 0, 255);
- *data = (*data & ~(0xffu << (c * 8))) | (v << (c * 8));
- } else {
- DCHECK_EQ(pixels->bytesPerPixel(), 1);
- DCHECK_EQ(c, 0);
- uint8_t* data = pixels->getAddr8(x, y);
- v = base::clamp(v, 0, 255);
- *data = v;
- }
- }
- // Print all the R, G, B or A values from an SkBitmap in a
- // human-readable format.
- void PrintChannel(SkBitmap* pixels, int c) {
- for (int y = 0; y < pixels->height(); y++) {
- std::string formatted;
- for (int x = 0; x < pixels->width(); x++) {
- formatted.append(base::StringPrintf("%3d, ", Channel(pixels, x, y, c)));
- }
- LOG(ERROR) << formatted;
- }
- }
- // Print out the individual steps of a scaler pipeline.
- std::string PrintStages(
- const std::vector<GLHelperScaling::ScalerStage>& scaler_stages) {
- std::string ret;
- for (size_t i = 0; i < scaler_stages.size(); i++) {
- ret.append(base::StringPrintf(
- "%dx%d -> %dx%d ", scaler_stages[i].scale_from.x(),
- scaler_stages[i].scale_from.y(), scaler_stages[i].scale_to.x(),
- scaler_stages[i].scale_to.y()));
- bool xy_matters = false;
- switch (scaler_stages[i].shader) {
- case GLHelperScaling::SHADER_BILINEAR:
- ret.append("bilinear");
- break;
- case GLHelperScaling::SHADER_BILINEAR2:
- ret.append("bilinear2");
- xy_matters = true;
- break;
- case GLHelperScaling::SHADER_BILINEAR3:
- ret.append("bilinear3");
- xy_matters = true;
- break;
- case GLHelperScaling::SHADER_BILINEAR4:
- ret.append("bilinear4");
- xy_matters = true;
- break;
- case GLHelperScaling::SHADER_BILINEAR2X2:
- ret.append("bilinear2x2");
- break;
- case GLHelperScaling::SHADER_BICUBIC_UPSCALE:
- ret.append("bicubic upscale");
- xy_matters = true;
- break;
- case GLHelperScaling::SHADER_BICUBIC_HALF_1D:
- ret.append("bicubic 1/2");
- xy_matters = true;
- break;
- case GLHelperScaling::SHADER_PLANAR:
- ret.append("planar");
- break;
- case GLHelperScaling::SHADER_YUV_MRT_PASS1:
- ret.append("rgb2yuv pass 1");
- break;
- case GLHelperScaling::SHADER_YUV_MRT_PASS2:
- ret.append("rgb2yuv pass 2");
- break;
- }
- if (xy_matters) {
- if (scaler_stages[i].scale_x) {
- ret.append(" X");
- } else {
- ret.append(" Y");
- }
- }
- ret.append("\n");
- }
- return ret;
- }
- bool CheckScale(double scale, int samples, bool already_scaled) {
- // 1:1 is valid if there is one sample.
- if (samples == 1 && scale == 1.0) {
- return true;
- }
- // Is it an exact down-scale (50%, 25%, etc.?)
- if (scale == 2.0 * samples) {
- return true;
- }
- // Upscales, only valid if we haven't already scaled in this dimension.
- if (!already_scaled) {
- // Is it a valid bilinear upscale?
- if (samples == 1 && scale <= 1.0) {
- return true;
- }
- // Multi-sample upscale-downscale combination?
- if (scale > samples / 2.0 && scale < samples) {
- return true;
- }
- }
- return false;
- }
- // Make sure that the stages of the scaler pipeline are sane.
- void ValidateScalerStages(
- GLHelper::ScalerQuality quality,
- const std::vector<GLHelperScaling::ScalerStage>& scaler_stages,
- const gfx::Vector2d& overall_scale_from,
- const gfx::Vector2d& overall_scale_to,
- const std::string& message) {
- bool previous_error = HasFailure();
- // Used to verify that up-scales are not attempted after some
- // other scale.
- bool scaled_x = false;
- bool scaled_y = false;
- double combined_x_scale = 1.0;
- double combined_y_scale = 1.0;
- for (size_t i = 0; i < scaler_stages.size(); i++) {
- // Note: 2.0 means scaling down by 50%
- double x_scale = static_cast<double>(scaler_stages[i].scale_from.x()) /
- static_cast<double>(scaler_stages[i].scale_to.x());
- combined_x_scale *= x_scale;
- double y_scale = static_cast<double>(scaler_stages[i].scale_from.y()) /
- static_cast<double>(scaler_stages[i].scale_to.y());
- combined_y_scale *= y_scale;
- int x_samples = 0;
- int y_samples = 0;
- // Codify valid scale operations.
- switch (scaler_stages[i].shader) {
- case GLHelperScaling::SHADER_PLANAR:
- case GLHelperScaling::SHADER_YUV_MRT_PASS1:
- case GLHelperScaling::SHADER_YUV_MRT_PASS2:
- EXPECT_TRUE(false) << "Invalid shader.";
- break;
- case GLHelperScaling::SHADER_BILINEAR:
- if (quality != GLHelper::SCALER_QUALITY_FAST) {
- x_samples = 1;
- y_samples = 1;
- }
- break;
- case GLHelperScaling::SHADER_BILINEAR2:
- x_samples = 2;
- y_samples = 1;
- break;
- case GLHelperScaling::SHADER_BILINEAR3:
- x_samples = 3;
- y_samples = 1;
- break;
- case GLHelperScaling::SHADER_BILINEAR4:
- x_samples = 4;
- y_samples = 1;
- break;
- case GLHelperScaling::SHADER_BILINEAR2X2:
- x_samples = 2;
- y_samples = 2;
- break;
- case GLHelperScaling::SHADER_BICUBIC_UPSCALE:
- if (scaler_stages[i].scale_x) {
- EXPECT_LT(x_scale, 1.0);
- EXPECT_EQ(y_scale, 1.0);
- } else {
- EXPECT_EQ(x_scale, 1.0);
- EXPECT_LT(y_scale, 1.0);
- }
- break;
- case GLHelperScaling::SHADER_BICUBIC_HALF_1D:
- if (scaler_stages[i].scale_x) {
- EXPECT_EQ(x_scale, 2.0);
- EXPECT_EQ(y_scale, 1.0);
- } else {
- EXPECT_EQ(x_scale, 1.0);
- EXPECT_EQ(y_scale, 2.0);
- }
- break;
- }
- if (!scaler_stages[i].scale_x) {
- std::swap(x_samples, y_samples);
- }
- if (x_samples) {
- EXPECT_TRUE(CheckScale(x_scale, x_samples, scaled_x))
- << "x_scale = " << x_scale;
- }
- if (y_samples) {
- EXPECT_TRUE(CheckScale(y_scale, y_samples, scaled_y))
- << "y_scale = " << y_scale;
- }
- if (x_scale != 1.0) {
- scaled_x = true;
- }
- if (y_scale != 1.0) {
- scaled_y = true;
- }
- }
- const double expected_x_scale =
- static_cast<double>(overall_scale_from.x()) /
- static_cast<double>(overall_scale_to.x());
- const double expected_y_scale =
- static_cast<double>(overall_scale_from.y()) /
- static_cast<double>(overall_scale_to.y());
- EXPECT_NEAR(expected_x_scale, combined_x_scale, 1e-9);
- EXPECT_NEAR(expected_y_scale, combined_y_scale, 1e-9);
- if (HasFailure() && !previous_error) {
- LOG(ERROR) << "Invalid scaler stages: " << message;
- LOG(ERROR) << "Scaler stages:";
- LOG(ERROR) << PrintStages(scaler_stages);
- }
- }
- // Compares two bitmaps taking color types into account. Checks whether each
- // component of each pixel is no more than |maxdiff| apart. If bitmaps are not
- // similar enough, prints out |truth|, |other|, |source|, |scaler_stages|
- // and |message|.
- void Compare(SkBitmap* truth,
- SkBitmap* other,
- int maxdiff,
- SkBitmap* source,
- const std::vector<GLHelperScaling::ScalerStage>& scaler_stages,
- std::string message) {
- EXPECT_EQ(truth->width(), other->width());
- EXPECT_EQ(truth->height(), other->height());
- bool swizzle = (truth->colorType() == kRGBA_8888_SkColorType &&
- other->colorType() == kBGRA_8888_SkColorType) ||
- (truth->colorType() == kBGRA_8888_SkColorType &&
- other->colorType() == kRGBA_8888_SkColorType);
- EXPECT_TRUE(swizzle || truth->colorType() == other->colorType());
- int bpp = truth->bytesPerPixel();
- for (int x = 0; x < truth->width(); x++) {
- for (int y = 0; y < truth->height(); y++) {
- for (int c = 0; c < bpp; c++) {
- int a = Channel(truth, x, y, c);
- // swizzle when comparing if needed
- int b = swizzle && (c == 0 || c == 2)
- ? Channel(other, x, y, (c + 2) & 2)
- : Channel(other, x, y, c);
- EXPECT_NEAR(a, b, maxdiff)
- << " x=" << x << " y=" << y << " c=" << c << " " << message;
- if (std::abs(a - b) > maxdiff) {
- LOG(ERROR) << "-------expected--------";
- for (int i = 0; i < bpp; i++) {
- LOG(ERROR) << "Channel " << i << ":";
- PrintChannel(truth, i);
- }
- LOG(ERROR) << "-------actual--------";
- for (int i = 0; i < bpp; i++) {
- LOG(ERROR) << "Channel " << i << ":";
- PrintChannel(other, i);
- }
- if (source) {
- LOG(ERROR) << "-------original--------";
- for (int i = 0; i < source->bytesPerPixel(); i++) {
- LOG(ERROR) << "Channel " << i << ":";
- PrintChannel(source, i);
- }
- }
- LOG(ERROR) << "-----Scaler stages------";
- LOG(ERROR) << PrintStages(scaler_stages);
- return;
- }
- }
- }
- }
- }
- // Get a single R, G, B or A value as a float.
- float ChannelAsFloat(SkBitmap* pixels, int x, int y, int c) {
- return Channel(pixels, x, y, c) / 255.0;
- }
- // Works like a GL_LINEAR lookup on an SkBitmap.
- float Bilinear(SkBitmap* pixels, float x, float y, int c) {
- x -= 0.5;
- y -= 0.5;
- int base_x = static_cast<int>(floorf(x));
- int base_y = static_cast<int>(floorf(y));
- x -= base_x;
- y -= base_y;
- return (ChannelAsFloat(pixels, base_x, base_y, c) * (1 - x) * (1 - y) +
- ChannelAsFloat(pixels, base_x + 1, base_y, c) * x * (1 - y) +
- ChannelAsFloat(pixels, base_x, base_y + 1, c) * (1 - x) * y +
- ChannelAsFloat(pixels, base_x + 1, base_y + 1, c) * x * y);
- }
- // Very slow bicubic / bilinear scaler for reference.
- void ScaleSlow(SkBitmap* input,
- const gfx::Rect& source_rect,
- GLHelper::ScalerQuality quality,
- SkBitmap* output) {
- float xscale = static_cast<float>(source_rect.width()) / output->width();
- float yscale = static_cast<float>(source_rect.height()) / output->height();
- float clamped_xscale = xscale < 1.0 ? 1.0 : 1.0 / xscale;
- float clamped_yscale = yscale < 1.0 ? 1.0 : 1.0 / yscale;
- for (int dst_y = 0; dst_y < output->height(); dst_y++) {
- for (int dst_x = 0; dst_x < output->width(); dst_x++) {
- for (int channel = 0; channel < 4; channel++) {
- float dst_x_in_src = source_rect.x() + (dst_x + 0.5f) * xscale;
- float dst_y_in_src = source_rect.y() + (dst_y + 0.5f) * yscale;
- float value = 0.0f;
- float sum = 0.0f;
- switch (quality) {
- case GLHelper::SCALER_QUALITY_BEST:
- for (int src_y = source_rect.y() - 10;
- src_y < source_rect.bottom() + 10; ++src_y) {
- float coeff_y =
- Bicubic((src_y + 0.5f - dst_y_in_src) * clamped_yscale);
- if (coeff_y == 0.0f) {
- continue;
- }
- for (int src_x = source_rect.x() - 10;
- src_x < source_rect.right() + 10; ++src_x) {
- float coeff =
- coeff_y *
- Bicubic((src_x + 0.5f - dst_x_in_src) * clamped_xscale);
- if (coeff == 0.0f) {
- continue;
- }
- sum += coeff;
- float c = ChannelAsFloat(input, src_x, src_y, channel);
- value += c * coeff;
- }
- }
- break;
- case GLHelper::SCALER_QUALITY_GOOD: {
- int xshift = 0, yshift = 0;
- while ((output->width() << xshift) < source_rect.width()) {
- xshift++;
- }
- while ((output->height() << yshift) < source_rect.height()) {
- yshift++;
- }
- int xmag = 1 << xshift;
- int ymag = 1 << yshift;
- if (xmag == 4 && output->width() * 3 >= source_rect.width()) {
- xmag = 3;
- }
- if (ymag == 4 && output->height() * 3 >= source_rect.height()) {
- ymag = 3;
- }
- for (int x = 0; x < xmag; x++) {
- for (int y = 0; y < ymag; y++) {
- value += Bilinear(input,
- source_rect.x() + (dst_x * xmag + x + 0.5) *
- xscale / xmag,
- source_rect.y() + (dst_y * ymag + y + 0.5) *
- yscale / ymag,
- channel);
- sum += 1.0;
- }
- }
- break;
- }
- case GLHelper::SCALER_QUALITY_FAST:
- value = Bilinear(input, dst_x_in_src, dst_y_in_src, channel);
- sum = 1.0;
- }
- value /= sum;
- SetChannel(output, dst_x, dst_y, channel,
- static_cast<int>(value * 255.0f + 0.5f));
- }
- }
- }
- }
- void FlipSKBitmap(SkBitmap* bitmap) {
- int bpp = bitmap->bytesPerPixel();
- DCHECK(bpp == 4 || bpp == 1);
- int top_line = 0;
- int bottom_line = bitmap->height() - 1;
- while (top_line < bottom_line) {
- for (int x = 0; x < bitmap->width(); x++) {
- bpp == 4 ? std::swap(*bitmap->getAddr32(x, top_line),
- *bitmap->getAddr32(x, bottom_line))
- : std::swap(*bitmap->getAddr8(x, top_line),
- *bitmap->getAddr8(x, bottom_line));
- }
- top_line++;
- bottom_line--;
- }
- }
- // gl_helper scales recursively, so we'll need to do that
- // in the reference implementation too.
- void ScaleSlowRecursive(SkBitmap* input,
- const gfx::Rect& source_rect,
- GLHelper::ScalerQuality quality,
- SkBitmap* output) {
- if (quality == GLHelper::SCALER_QUALITY_FAST ||
- quality == GLHelper::SCALER_QUALITY_GOOD) {
- ScaleSlow(input, source_rect, quality, output);
- return;
- }
- float xscale = static_cast<float>(output->width()) / source_rect.width();
- // This corresponds to all the operations we can do directly.
- float yscale = static_cast<float>(output->height()) / source_rect.height();
- if ((xscale == 1.0f && yscale == 1.0f) ||
- (xscale == 0.5f && yscale == 1.0f) ||
- (xscale == 1.0f && yscale == 0.5f) ||
- (xscale >= 1.0f && yscale == 1.0f) ||
- (xscale == 1.0f && yscale >= 1.0f)) {
- ScaleSlow(input, source_rect, quality, output);
- return;
- }
- // Now we break the problem down into smaller pieces, using the
- // operations available.
- int xtmp = source_rect.width();
- int ytmp = source_rect.height();
- if (output->height() != source_rect.height()) {
- ytmp = output->height();
- while (ytmp < source_rect.height() && ytmp * 2 != source_rect.height()) {
- ytmp += ytmp;
- }
- } else {
- xtmp = output->width();
- while (xtmp < source_rect.width() && xtmp * 2 != source_rect.width()) {
- xtmp += xtmp;
- }
- }
- // Note: The following does not account for scaler overscan. This was
- // attempted, but then unit test run time increased by a factor of 30!
- SkBitmap tmp;
- tmp.allocN32Pixels(xtmp, ytmp);
- ScaleSlowRecursive(input, source_rect, quality, &tmp);
- ScaleSlowRecursive(&tmp, gfx::Rect(0, 0, xtmp, ytmp), quality, output);
- }
- // Creates an RGBA SkBitmap with one of the pre-programmed test patterns. The
- // pattern starts at the given |origin|. For positions to the left or above
- // that point, values are filled-in corresponding to GL_CLAMP_TO_EDGE
- // behavior. This is because the reference scaler does not properly account
- // for overscan.
- std::unique_ptr<SkBitmap> CreateTestBitmap(const gfx::Size& size,
- const gfx::Point& origin,
- int test_pattern) {
- std::unique_ptr<SkBitmap> bitmap(new SkBitmap);
- bitmap->allocPixels(SkImageInfo::Make(size.width(), size.height(),
- kRGBA_8888_SkColorType,
- kPremul_SkAlphaType));
- for (int x = 0; x < size.width(); ++x) {
- for (int y = 0; y < size.height(); ++y) {
- const int s = std::max(0, x - origin.x());
- const int t = std::max(0, y - origin.y());
- switch (test_pattern) {
- case 0: // Smooth test pattern
- SetChannel(bitmap.get(), x, y, 0, s * 10);
- SetChannel(bitmap.get(), x, y, 0, t == 0 ? s * 50 : s * 10);
- SetChannel(bitmap.get(), x, y, 1, t * 10);
- SetChannel(bitmap.get(), x, y, 2, (s + t) * 10);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- case 1: // Small blocks
- SetChannel(bitmap.get(), x, y, 0, s & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 1, t & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 2, (s + t) & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- case 2: // Medium blocks
- SetChannel(bitmap.get(), x, y, 0, 10 + s / 2 * 50);
- SetChannel(bitmap.get(), x, y, 1, 10 + t / 3 * 50);
- SetChannel(bitmap.get(), x, y, 2, (s + t) / 5 * 50 + 5);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- }
- }
- }
- return bitmap;
- }
- // Scaling test: Create a test image, scale it using GLHelperScaling
- // and a reference implementation and compare the results.
- void TestScale(const gfx::Rect& source_rect,
- const gfx::Size& scaled_size,
- int test_pattern,
- size_t quality_index,
- bool flip_output) {
- // The source texture is meant to be the contents of a framebuffer. Thus, it
- // includes (0,0), and all the way out to the lower-right corner of the
- // |source_rect|.
- const gfx::Size framebuffer_size(source_rect.right(), source_rect.bottom());
- std::unique_ptr<SkBitmap> input_pixels =
- CreateTestBitmap(framebuffer_size, source_rect.origin(), test_pattern);
- GLuint src_texture;
- gl_->GenTextures(1, &src_texture);
- gl_->BindTexture(GL_TEXTURE_2D, src_texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, framebuffer_size.width(),
- framebuffer_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE,
- input_pixels->getPixels());
- std::string message = base::StringPrintf(
- "source rect: %s "
- "output size: %s "
- "pattern: %d quality: %s %s",
- source_rect.ToString().c_str(), scaled_size.ToString().c_str(),
- test_pattern, kQualityNames[quality_index],
- flip_output ? "flipout" : "noflipout");
- std::vector<GLHelperScaling::ScalerStage> stages;
- const auto scale_from =
- gfx::Vector2d(source_rect.width(), source_rect.height());
- const auto scale_to =
- gfx::Vector2d(scaled_size.width(), scaled_size.height());
- helper_scaling_->ComputeScalerStages(kQualities[quality_index], scale_from,
- scale_to, false, flip_output, false,
- &stages);
- ValidateScalerStages(kQualities[quality_index], stages, scale_from,
- scale_to, message);
- // Scale the source texture, producing the results in a new output
- // texture.
- std::unique_ptr<GLHelper::ScalerInterface> scaler =
- helper_->CreateScaler(kQualities[quality_index], scale_from, scale_to,
- false, flip_output, false);
- ASSERT_FALSE(scaler->IsSamplingFlippedSource());
- ASSERT_EQ(flip_output, scaler->IsFlippingOutput());
- GLuint dst_texture = 0;
- gl_->GenTextures(1, &dst_texture);
- gl_->BindTexture(GL_TEXTURE_2D, dst_texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, scaled_size.width(),
- scaled_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE,
- nullptr);
- scaler->Scale(src_texture, framebuffer_size, source_rect.OffsetFromOrigin(),
- dst_texture, gfx::Rect(scaled_size));
- SkBitmap output_pixels;
- output_pixels.allocPixels(
- SkImageInfo::Make(scaled_size.width(), scaled_size.height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType));
- EXPECT_TRUE(
- ReadBackTexture(dst_texture, scaled_size,
- static_cast<unsigned char*>(output_pixels.getPixels()),
- kRGBA_8888_SkColorType));
- if (flip_output) {
- // Flip the pixels back.
- FlipSKBitmap(&output_pixels);
- }
- // If the bitmap shouldn't have changed - compare against input.
- if (source_rect == gfx::Rect(scaled_size)) {
- Compare(input_pixels.get(), &output_pixels, 0, nullptr, stages,
- message + " comparing against input");
- return;
- }
- // Now scale the bitmap using the reference implementation.
- SkBitmap truth_pixels;
- truth_pixels.allocPixels(
- SkImageInfo::Make(scaled_size.width(), scaled_size.height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType));
- ScaleSlowRecursive(input_pixels.get(), source_rect,
- kQualities[quality_index], &truth_pixels);
- // Compare the results produced by the two implementations. Note that the
- // reference implementation does not fully account for overscan (see
- // comment in ScaleSlowRecursive()), and so the the maxdiff must be
- // increased when the bicubic scaler is being used.
- const int maxdiff = 2 + (quality_index == 0 ? (2 * stages.size()) : 0);
- Compare(&truth_pixels, &output_pixels, maxdiff, input_pixels.get(), stages,
- message + " comparing against scaled");
- gl_->DeleteTextures(1, &src_texture);
- gl_->DeleteTextures(1, &dst_texture);
- }
- // Scaling patching test: Scale an entire source image, and then scale various
- // subsets of the source image; and then confirm that the pixels in the
- // subsets exactly match their corresponding ones in the whole. This is
- // critical for use cases where the scaler only needs to render the changed
- // region of a source image.
- void TestScalePatching(const gfx::Vector2d& scale_from,
- const gfx::Vector2d& scale_to,
- int test_pattern,
- size_t quality_index,
- bool flipped_source) {
- // Generate a source texture representing copied-from-framebuffer content
- // with a test pattern that is twice the size of the "from" vector.
- const gfx::Size framebuffer_size(scale_from.x() * 2, scale_from.y() * 2);
- std::unique_ptr<SkBitmap> test_bitmap =
- CreateTestBitmap(framebuffer_size, gfx::Point(), test_pattern);
- if (flipped_source)
- FlipSKBitmap(test_bitmap.get());
- GLuint src_texture;
- gl_->GenTextures(1, &src_texture);
- gl_->BindTexture(GL_TEXTURE_2D, src_texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, framebuffer_size.width(),
- framebuffer_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE,
- test_bitmap->getPixels());
- const std::unique_ptr<GLHelper::ScalerInterface> scaler =
- helper_->CreateScaler(kQualities[quality_index], scale_from, scale_to,
- flipped_source, false, false);
- ASSERT_EQ(flipped_source, scaler->IsSamplingFlippedSource());
- ASSERT_FALSE(scaler->IsFlippingOutput());
- // Note: These scaler stages are only being computed here for the benefit
- // Compare()'s error output messaging, below.
- std::vector<GLHelperScaling::ScalerStage> stages;
- helper_scaling_->ComputeScalerStages(kQualities[quality_index], scale_from,
- scale_to, flipped_source, false, false,
- &stages);
- // First, produce the entire output image, a full scan of the source to
- // produce all the output pixels. The output image is twice the size of the
- // "to" vector.
- GLuint dst_texture;
- gl_->GenTextures(1, &dst_texture);
- gl_->BindTexture(GL_TEXTURE_2D, dst_texture);
- const gfx::Size entire_output_size(scale_to.x() * 2, scale_to.y() * 2);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, entire_output_size.width(),
- entire_output_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE,
- nullptr);
- scaler->Scale(src_texture, framebuffer_size, gfx::Vector2dF(), dst_texture,
- gfx::Rect(entire_output_size));
- SkBitmap entire_output;
- entire_output.allocPixels(SkImageInfo::Make(
- entire_output_size.width(), entire_output_size.height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType));
- EXPECT_TRUE(
- ReadBackTexture(dst_texture, entire_output_size,
- static_cast<unsigned char*>(entire_output.getPixels()),
- kRGBA_8888_SkColorType));
- const std::string human_readable_test_params = base::StringPrintf(
- "scale from: %s "
- "scale to: %s "
- "pattern: %d quality: %s %s",
- scale_from.ToString().c_str(), scale_to.ToString().c_str(),
- test_pattern, kQualityNames[quality_index],
- flipped_source ? "flippedsource" : "");
- // Check the entire output image against the reference implementation.
- SkBitmap entire_output_ref;
- entire_output_ref.allocPixels(SkImageInfo::Make(
- entire_output_size.width(), entire_output_size.height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType));
- ScaleSlowRecursive(test_bitmap.get(), gfx::Rect(framebuffer_size),
- kQualities[quality_index], &entire_output_ref);
- Compare(&entire_output_ref, &entire_output, 2, test_bitmap.get(), stages,
- human_readable_test_params + " ENTIRE OUTPUT");
- if (HasFailure())
- return;
- // Now, produce patches at various offsets and compare to the pixels in
- // |entire_output|.
- const gfx::Size patch_size(scale_to.x(), scale_to.y());
- gl_->BindTexture(GL_TEXTURE_2D, dst_texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, patch_size.width(),
- patch_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
- for (int xoffset = 0; xoffset < scale_to.x(); ++xoffset) {
- for (int yoffset = 0; yoffset < scale_to.y(); ++yoffset) {
- const gfx::Rect patch_rect(gfx::Point(xoffset, yoffset), patch_size);
- // First method of producing a patch: Scale from the same source texture
- // and just provide an offset output Rect.
- scaler->Scale(src_texture, framebuffer_size, gfx::Vector2dF(),
- dst_texture, patch_rect);
- SkBitmap patch_output;
- patch_output.allocPixels(
- SkImageInfo::Make(patch_size.width(), patch_size.height(),
- kRGBA_8888_SkColorType, kPremul_SkAlphaType));
- EXPECT_TRUE(ReadBackTexture(
- dst_texture, patch_size,
- static_cast<unsigned char*>(patch_output.getPixels()),
- kRGBA_8888_SkColorType));
- SkBitmap expected;
- SkIRect expected_subrect{patch_rect.x(), patch_rect.y(),
- patch_rect.right(), patch_rect.bottom()};
- if (flipped_source) {
- expected_subrect.fTop = entire_output.height() - patch_rect.bottom();
- expected_subrect.fBottom = entire_output.height() - patch_rect.y();
- }
- ASSERT_TRUE(entire_output.extractSubset(&expected, expected_subrect));
- Compare(&expected, &patch_output, 2, test_bitmap.get(), stages,
- "METHOD1 " + human_readable_test_params +
- " patch rect: " + patch_rect.ToString());
- if (HasFailure())
- return;
- // Second method of producing a patch: First copy just the "region of
- // influence" of the source texture, then produced a scaled image from
- // that.
- gfx::Rect sampling_rect;
- gfx::Vector2dF offset;
- scaler->ComputeRegionOfInfluence(framebuffer_size, gfx::Vector2dF(),
- patch_rect, &sampling_rect, &offset);
- // TODO(crbug.com/775740): Only test offsets having whole-numbered
- // coordinates until the scalers can account for the other case.
- if (offset.x() == std::floor(offset.x()) &&
- offset.y() == std::floor(offset.y())) {
- GLuint src_subset_texture;
- gl_->GenTextures(1, &src_subset_texture);
- gl_->BindTexture(GL_TEXTURE_2D, src_subset_texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, sampling_rect.width(),
- sampling_rect.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE,
- nullptr);
- gl_->CopySubTextureCHROMIUM(
- src_texture, 0 /* source_level */, GL_TEXTURE_2D,
- src_subset_texture, 0 /* dest_level */, 0 /* xoffset */,
- 0 /* yoffset */, sampling_rect.x(), sampling_rect.y(),
- sampling_rect.width(), sampling_rect.height(), false, false,
- false);
- scaler->Scale(src_subset_texture, sampling_rect.size(), offset,
- dst_texture, gfx::Rect(patch_size));
- gl_->DeleteTextures(1, &src_subset_texture);
- EXPECT_TRUE(ReadBackTexture(
- dst_texture, patch_size,
- static_cast<unsigned char*>(patch_output.getPixels()),
- kRGBA_8888_SkColorType));
- Compare(&expected, &patch_output, 2, test_bitmap.get(), stages,
- "METHOD2 " + human_readable_test_params +
- " patch rect: " + patch_rect.ToString());
- if (HasFailure())
- return;
- }
- }
- }
- gl_->DeleteTextures(1, &src_texture);
- gl_->DeleteTextures(1, &dst_texture);
- }
- // Create a scaling pipeline and check that it is made up of
- // valid scaling operations.
- void TestScalerPipeline(size_t quality,
- int xsize,
- int ysize,
- int dst_xsize,
- int dst_ysize) {
- std::vector<GLHelperScaling::ScalerStage> stages;
- helper_scaling_->ComputeScalerStages(
- kQualities[quality], gfx::Vector2d(xsize, ysize),
- gfx::Vector2d(dst_xsize, dst_ysize), false, false, false, &stages);
- ValidateScalerStages(kQualities[quality], stages,
- gfx::Vector2d(xsize, ysize),
- gfx::Vector2d(dst_xsize, dst_ysize),
- base::StringPrintf("input size: %dx%d "
- "output size: %dx%d "
- "quality: %s",
- xsize, ysize, dst_xsize, dst_ysize,
- kQualityNames[quality]));
- }
- // Create a scaling pipeline and make sure that the steps
- // are exactly the steps we expect.
- void CheckPipeline(GLHelper::ScalerQuality quality,
- int xsize,
- int ysize,
- int dst_xsize,
- int dst_ysize,
- const std::string& description) {
- std::vector<GLHelperScaling::ScalerStage> stages;
- helper_scaling_->ComputeScalerStages(quality, gfx::Vector2d(xsize, ysize),
- gfx::Vector2d(dst_xsize, dst_ysize),
- false, false, false, &stages);
- ValidateScalerStages(GLHelper::SCALER_QUALITY_GOOD, stages,
- gfx::Vector2d(xsize, ysize),
- gfx::Vector2d(dst_xsize, dst_ysize), "");
- EXPECT_EQ(PrintStages(stages), description);
- }
- void DrawGridToBitmap(int w,
- int h,
- SkColor background_color,
- SkColor grid_color,
- int grid_pitch,
- int grid_width,
- const SkBitmap& bmp) {
- ASSERT_GT(grid_pitch, 0);
- ASSERT_GT(grid_width, 0);
- ASSERT_NE(background_color, grid_color);
- for (int y = 0; y < h; ++y) {
- bool y_on_grid = ((y % grid_pitch) < grid_width);
- for (int x = 0; x < w; ++x) {
- bool on_grid = (y_on_grid || ((x % grid_pitch) < grid_width));
- *bmp.getAddr32(x, y) = (on_grid ? grid_color : background_color);
- }
- }
- }
- void DrawCheckerToBitmap(int w,
- int h,
- SkColor color1,
- SkColor color2,
- int rect_w,
- int rect_h,
- const SkBitmap& bmp) {
- ASSERT_GT(rect_w, 0);
- ASSERT_GT(rect_h, 0);
- ASSERT_NE(color1, color2);
- for (int y = 0; y < h; ++y) {
- bool y_bit = (((y / rect_h) & 0x1) == 0);
- for (int x = 0; x < w; ++x) {
- bool x_bit = (((x / rect_w) & 0x1) == 0);
- bool use_color2 = (x_bit != y_bit); // xor
- *bmp.getAddr32(x, y) = (use_color2 ? color2 : color1);
- }
- }
- }
- bool ColorComponentsClose(SkColor component1, SkColor component2) {
- int c1 = static_cast<int>(component1);
- int c2 = static_cast<int>(component2);
- return (std::abs(c1 - c2) == 0);
- }
- bool ColorsClose(SkColor color1, SkColor color2) {
- bool red = ColorComponentsClose(SkColorGetR(color1), SkColorGetR(color2));
- bool green = ColorComponentsClose(SkColorGetG(color1), SkColorGetG(color2));
- bool blue = ColorComponentsClose(SkColorGetB(color1), SkColorGetB(color2));
- bool alpha = ColorComponentsClose(SkColorGetA(color1), SkColorGetA(color2));
- return red && blue && green && alpha;
- }
- bool IsEqual(const SkBitmap& bmp1, const SkBitmap& bmp2) {
- if (bmp1.isNull() && bmp2.isNull())
- return true;
- if (bmp1.width() != bmp2.width() || bmp1.height() != bmp2.height()) {
- LOG(ERROR) << "Bitmap geometry check failure";
- return false;
- }
- if (bmp1.colorType() != bmp2.colorType())
- return false;
- if (!bmp1.getPixels() || !bmp2.getPixels()) {
- LOG(ERROR) << "Empty Bitmap!";
- return false;
- }
- for (int y = 0; y < bmp1.height(); ++y) {
- for (int x = 0; x < bmp1.width(); ++x) {
- if (!ColorsClose(bmp1.getColor(x, y), bmp2.getColor(x, y))) {
- LOG(ERROR) << "Bitmap color comparison failure";
- return false;
- }
- }
- }
- return true;
- }
- void BindAndAttachTextureWithPixels(GLuint src_texture,
- SkColorType color_type,
- const gfx::Size& src_size,
- const SkBitmap& input_pixels) {
- gl_->BindTexture(GL_TEXTURE_2D, src_texture);
- const GLenum format =
- (color_type == kBGRA_8888_SkColorType) ? GL_BGRA_EXT : GL_RGBA;
- gl_->TexImage2D(GL_TEXTURE_2D, 0, format, src_size.width(),
- src_size.height(), 0, format, GL_UNSIGNED_BYTE,
- input_pixels.getPixels());
- }
- bool ReadBackTexture(GLuint src_texture,
- const gfx::Size& src_size,
- unsigned char* pixels,
- SkColorType color_type) {
- DCHECK(color_type == kRGBA_8888_SkColorType ||
- color_type == kBGRA_8888_SkColorType);
- base::RunLoop run_loop;
- bool success = false;
- GLenum format;
- if (color_type == kRGBA_8888_SkColorType)
- format = GL_RGBA;
- else
- format = GL_BGRA_EXT;
- helper_->ReadbackTextureAsync(
- src_texture, GL_TEXTURE_2D, src_size, pixels, format,
- base::BindOnce(
- [](bool* success, base::OnceClosure callback, bool result) {
- *success = result;
- std::move(callback).Run();
- },
- &success, run_loop.QuitClosure()));
- run_loop.Run();
- return success;
- }
- // Test basic format readback.
- bool TestTextureFormatReadback(const gfx::Size& src_size,
- SkColorType color_type) {
- SkImageInfo info = SkImageInfo::Make(src_size.width(), src_size.height(),
- color_type, kPremul_SkAlphaType);
- GLuint src_texture;
- gl_->GenTextures(1, &src_texture);
- SkBitmap input_pixels;
- input_pixels.allocPixels(info);
- // Test Pattern-1, Fill with Plain color pattern.
- // Erase the input bitmap with red color.
- input_pixels.eraseColor(SK_ColorRED);
- BindAndAttachTextureWithPixels(src_texture, color_type, src_size,
- input_pixels);
- SkBitmap output_pixels;
- output_pixels.allocPixels(info);
- // Initialize the output bitmap with Green color.
- // When the readback is over output bitmap should have the red color.
- output_pixels.eraseColor(SK_ColorGREEN);
- uint8_t* pixels = static_cast<uint8_t*>(output_pixels.getPixels());
- if (!ReadBackTexture(src_texture, src_size, pixels, color_type) ||
- !IsEqual(input_pixels, output_pixels)) {
- LOG(ERROR) << "Bitmap comparison failure Pattern-1";
- return false;
- }
- const int rect_w = 10, rect_h = 4, src_grid_pitch = 10, src_grid_width = 4;
- const SkColor color1 = SK_ColorRED, color2 = SK_ColorBLUE;
- // Test Pattern-2, Fill with Grid Pattern.
- DrawGridToBitmap(src_size.width(), src_size.height(), color2, color1,
- src_grid_pitch, src_grid_width, input_pixels);
- BindAndAttachTextureWithPixels(src_texture, color_type, src_size,
- input_pixels);
- if (!ReadBackTexture(src_texture, src_size, pixels, color_type) ||
- !IsEqual(input_pixels, output_pixels)) {
- LOG(ERROR) << "Bitmap comparison failure Pattern-2";
- return false;
- }
- // Test Pattern-3, Fill with CheckerBoard Pattern.
- DrawCheckerToBitmap(src_size.width(), src_size.height(), color1, color2,
- rect_w, rect_h, input_pixels);
- BindAndAttachTextureWithPixels(src_texture, color_type, src_size,
- input_pixels);
- if (!ReadBackTexture(src_texture, src_size, pixels, color_type) ||
- !IsEqual(input_pixels, output_pixels)) {
- LOG(ERROR) << "Bitmap comparison failure Pattern-3";
- return false;
- }
- gl_->DeleteTextures(1, &src_texture);
- if (HasFailure()) {
- return false;
- }
- return true;
- }
- void TestAddOps(int src, int dst, bool scale_x, bool allow3) {
- base::circular_deque<GLHelperScaling::ScaleOp> ops;
- GLHelperScaling::ScaleOp::AddOps(src, dst, scale_x, allow3, &ops);
- // Scale factor 3 is a special case.
- // It is currently only allowed by itself.
- if (allow3 && dst * 3 >= src && dst * 2 < src) {
- EXPECT_EQ(ops[0].scale_factor, 3);
- EXPECT_EQ(ops.size(), 1U);
- EXPECT_EQ(ops[0].scale_x, scale_x);
- EXPECT_EQ(ops[0].scale_size, dst);
- return;
- }
- for (size_t i = 0; i < ops.size(); i++) {
- EXPECT_EQ(ops[i].scale_x, scale_x);
- if (i == 0) {
- // Only the first op is allowed to be a scale up.
- // (Scaling up *after* scaling down would make it fuzzy.)
- EXPECT_TRUE(ops[0].scale_factor == 0 || ops[0].scale_factor == 2);
- } else {
- // All other operations must be 50% downscales.
- EXPECT_EQ(ops[i].scale_factor, 2);
- }
- }
- // Check that the scale factors make sense and add up.
- int tmp = dst;
- for (int i = static_cast<int>(ops.size() - 1); i >= 0; i--) {
- EXPECT_EQ(tmp, ops[i].scale_size);
- if (ops[i].scale_factor == 0) {
- EXPECT_EQ(i, 0);
- EXPECT_GT(tmp, src);
- tmp = src;
- } else {
- tmp *= ops[i].scale_factor;
- }
- }
- EXPECT_EQ(tmp, src);
- }
- void CheckPipeline2(int xsize,
- int ysize,
- int dst_xsize,
- int dst_ysize,
- const std::string& description) {
- std::vector<GLHelperScaling::ScalerStage> stages;
- helper_scaling_->ConvertScalerOpsToScalerStages(
- GLHelper::SCALER_QUALITY_GOOD, gfx::Vector2d(xsize, ysize), &x_ops_,
- &y_ops_, &stages);
- EXPECT_EQ(x_ops_.size(), 0U);
- EXPECT_EQ(y_ops_.size(), 0U);
- ValidateScalerStages(GLHelper::SCALER_QUALITY_GOOD, stages,
- gfx::Vector2d(xsize, ysize),
- gfx::Vector2d(dst_xsize, dst_ysize), "");
- EXPECT_EQ(PrintStages(stages), description);
- }
- void CheckOptimizationsTest() {
- // Basic upscale. X and Y should be combined into one pass.
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 2000));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 2000));
- CheckPipeline2(1024, 768, 2000, 2000, "1024x768 -> 2000x2000 bilinear\n");
- // X scaled 1/2, Y upscaled, should still be one pass.
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 512));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 2000));
- CheckPipeline2(1024, 768, 512, 2000, "1024x768 -> 512x2000 bilinear\n");
- // X upscaled, Y scaled 1/2, one bilinear pass
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 2000));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 384));
- CheckPipeline2(1024, 768, 2000, 384, "1024x768 -> 2000x384 bilinear\n");
- // X scaled 1/2, Y scaled 1/2, one bilinear pass
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 512));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 384));
- CheckPipeline2(1024, 768, 512, 384, "1024x768 -> 512x384 bilinear\n");
- // X scaled 1/2, Y scaled to 60%, one bilinear2 pass.
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 50));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- CheckPipeline2(100, 100, 50, 60, "100x100 -> 50x60 bilinear2 Y\n");
- // X scaled to 60%, Y scaled 1/2, one bilinear2 pass.
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 120));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 50));
- CheckPipeline2(100, 100, 60, 50, "100x100 -> 60x50 bilinear2 X\n");
- // X scaled to 60%, Y scaled 60%, one bilinear2x2 pass.
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 120));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- CheckPipeline2(100, 100, 60, 60, "100x100 -> 60x60 bilinear2x2\n");
- // X scaled to 40%, Y scaled 40%, two bilinear3 passes.
- x_ops_.push_back(GLHelperScaling::ScaleOp(3, true, 40));
- y_ops_.push_back(GLHelperScaling::ScaleOp(3, false, 40));
- CheckPipeline2(100, 100, 40, 40,
- "100x100 -> 100x40 bilinear3 Y\n"
- "100x40 -> 40x40 bilinear3 X\n");
- // X scaled to 60%, Y scaled 40%
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 120));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(3, false, 40));
- CheckPipeline2(100, 100, 60, 40,
- "100x100 -> 100x40 bilinear3 Y\n"
- "100x40 -> 60x40 bilinear2 X\n");
- // X scaled to 40%, Y scaled 60%
- x_ops_.push_back(GLHelperScaling::ScaleOp(3, true, 40));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- CheckPipeline2(100, 100, 40, 60,
- "100x100 -> 100x60 bilinear2 Y\n"
- "100x60 -> 40x60 bilinear3 X\n");
- // X scaled to 30%, Y scaled 30%
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 120));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 60));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 30));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 30));
- CheckPipeline2(100, 100, 30, 30,
- "100x100 -> 100x30 bilinear4 Y\n"
- "100x30 -> 30x30 bilinear4 X\n");
- // X scaled to 50%, Y scaled 30%
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 50));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 30));
- CheckPipeline2(100, 100, 50, 30, "100x100 -> 50x30 bilinear4 Y\n");
- // X scaled to 150%, Y scaled 30%
- // Note that we avoid combinding X and Y passes
- // as that would probably be LESS efficient here.
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 150));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 120));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 60));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 30));
- CheckPipeline2(100, 100, 150, 30,
- "100x100 -> 100x30 bilinear4 Y\n"
- "100x30 -> 150x30 bilinear\n");
- // X scaled to 1%, Y scaled 1%
- x_ops_.push_back(GLHelperScaling::ScaleOp(0, true, 128));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 64));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 32));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 16));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 8));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 4));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 2));
- x_ops_.push_back(GLHelperScaling::ScaleOp(2, true, 1));
- y_ops_.push_back(GLHelperScaling::ScaleOp(0, false, 128));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 64));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 32));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 16));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 8));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 4));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 2));
- y_ops_.push_back(GLHelperScaling::ScaleOp(2, false, 1));
- CheckPipeline2(100, 100, 1, 1,
- "100x100 -> 100x32 bilinear4 Y\n"
- "100x32 -> 100x4 bilinear4 Y\n"
- "100x4 -> 64x1 bilinear2x2\n"
- "64x1 -> 8x1 bilinear4 X\n"
- "8x1 -> 1x1 bilinear4 X\n");
- }
- base::test::ScopedFeatureList feature_list_;
- std::unique_ptr<GLInProcessContext> context_;
- raw_ptr<gles2::GLES2Interface> gl_;
- std::unique_ptr<GLHelper> helper_;
- std::unique_ptr<GLHelperScaling> helper_scaling_;
- base::circular_deque<GLHelperScaling::ScaleOp> x_ops_, y_ops_;
- };
- class GLHelperPixelTest : public GLHelperTest {
- private:
- gl::DisableNullDrawGLBindings enable_pixel_output_;
- };
- TEST_F(GLHelperTest, RGBAASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kRGBA_8888_SkColorType);
- EXPECT_EQ(result, true);
- }
- TEST_F(GLHelperTest, BGRAASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kBGRA_8888_SkColorType);
- EXPECT_EQ(result, true);
- }
- int kRGBReadBackSizes[] = {3, 6, 16};
- class GLHelperPixelReadbackTest
- : public GLHelperPixelTest,
- public ::testing::WithParamInterface<std::tuple<unsigned int,
- unsigned int,
- unsigned int,
- unsigned int,
- unsigned int>> {};
- // Per pixel tests, all sizes are small so that we can print
- // out the generated bitmaps.
- TEST_P(GLHelperPixelReadbackTest, ScaleTest) {
- unsigned int q_index = std::get<0>(GetParam());
- unsigned int x = std::get<1>(GetParam());
- unsigned int y = std::get<2>(GetParam());
- unsigned int dst_x = std::get<3>(GetParam());
- unsigned int dst_y = std::get<4>(GetParam());
- for (int flip_output = 0; flip_output <= 1; ++flip_output) {
- for (int pattern = 0; pattern < 3; ++pattern) {
- for (int xoffset = 0; xoffset < 4; ++xoffset) {
- for (int yoffset = 0; yoffset < 4; ++yoffset) {
- TestScale(
- gfx::Rect(xoffset, yoffset, kRGBReadBackSizes[x],
- kRGBReadBackSizes[y]),
- gfx::Size(kRGBReadBackSizes[dst_x], kRGBReadBackSizes[dst_y]),
- pattern, q_index, !!flip_output);
- if (HasFailure()) {
- return;
- }
- }
- }
- }
- }
- }
- // FLAKY: https://crbug.com/871799
- TEST_P(GLHelperPixelReadbackTest, DISABLED_ScalePatching) {
- for (int flipped_source = 0; flipped_source <= 1; ++flipped_source) {
- for (int pattern = 0; pattern < 3; ++pattern) {
- TestScalePatching(
- gfx::Vector2d(kRGBReadBackSizes[std::get<1>(GetParam())],
- kRGBReadBackSizes[std::get<2>(GetParam())]),
- gfx::Vector2d(kRGBReadBackSizes[std::get<3>(GetParam())],
- kRGBReadBackSizes[std::get<4>(GetParam())]),
- pattern, std::get<0>(GetParam()), !!flipped_source);
- if (HasFailure()) {
- return;
- }
- }
- }
- }
- INSTANTIATE_TEST_SUITE_P(
- All,
- GLHelperPixelReadbackTest,
- ::testing::Combine(
- ::testing::Range<unsigned int>(0, std::size(kQualities)),
- ::testing::Range<unsigned int>(0, std::size(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, std::size(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, std::size(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, std::size(kRGBReadBackSizes))));
- // Validate that all scaling generates valid pipelines.
- TEST_F(GLHelperTest, ValidateScalerPipelines) {
- int sizes[] = {7, 99, 128, 256, 512, 719, 720, 721, 1920, 2011, 3217, 4096};
- for (size_t q = 0; q < std::size(kQualities); q++) {
- for (size_t x = 0; x < std::size(sizes); x++) {
- for (size_t y = 0; y < std::size(sizes); y++) {
- for (size_t dst_x = 0; dst_x < std::size(sizes); dst_x++) {
- for (size_t dst_y = 0; dst_y < std::size(sizes); dst_y++) {
- TestScalerPipeline(q, sizes[x], sizes[y], sizes[dst_x],
- sizes[dst_y]);
- if (HasFailure()) {
- return;
- }
- }
- }
- }
- }
- }
- }
- // Make sure we don't create overly complicated pipelines
- // for a few common use cases.
- TEST_F(GLHelperTest, CheckSpecificPipelines) {
- // Upscale should be single pass.
- CheckPipeline(GLHelper::SCALER_QUALITY_GOOD, 1024, 700, 1280, 720,
- "1024x700 -> 1280x720 bilinear\n");
- // Slight downscale should use BILINEAR2X2.
- CheckPipeline(GLHelper::SCALER_QUALITY_GOOD, 1280, 720, 1024, 700,
- "1280x720 -> 1024x700 bilinear2x2\n");
- // Most common tab capture pipeline on the Pixel.
- // Should be using two BILINEAR3 passes.
- CheckPipeline(GLHelper::SCALER_QUALITY_GOOD, 2560, 1476, 1249, 720,
- "2560x1476 -> 2560x720 bilinear3 Y\n"
- "2560x720 -> 1249x720 bilinear3 X\n");
- }
- TEST_F(GLHelperTest, ScalerOpTest) {
- for (int allow3 = 0; allow3 <= 1; allow3++) {
- for (int dst = 1; dst < 2049; dst += 1 + (dst >> 3)) {
- for (int src = 1; src < 2049; src++) {
- TestAddOps(src, dst, allow3 == 1, (src & 1) == 1);
- if (HasFailure()) {
- LOG(ERROR) << "Failed for src=" << src << " dst=" << dst
- << " allow3=" << allow3;
- return;
- }
- }
- }
- }
- }
- TEST_F(GLHelperTest, CheckOptimizations) {
- // Test in baseclass since it is friends with GLHelperScaling
- CheckOptimizationsTest();
- }
- } // namespace gpu
- #endif // BUILDFLAG(IS_ANDROID)
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