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Unified Diff: components/display_compositor/gl_helper_unittest.cc

Issue 1905863002: Revert of Introduce components/display_compositor (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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Index: components/display_compositor/gl_helper_unittest.cc
diff --git a/components/display_compositor/gl_helper_unittest.cc b/components/display_compositor/gl_helper_unittest.cc
deleted file mode 100644
index 78896ebf8aeed7ea3b7a329ac13fdc099583e246..0000000000000000000000000000000000000000
--- a/components/display_compositor/gl_helper_unittest.cc
+++ /dev/null
@@ -1,1437 +0,0 @@
-// 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 <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <cmath>
-#include <string>
-#include <vector>
-
-#include <GLES2/gl2.h>
-#include <GLES2/gl2ext.h>
-#include <GLES2/gl2extchromium.h>
-
-#include "base/at_exit.h"
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/files/file_util.h"
-#include "base/json/json_reader.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted_memory.h"
-#include "base/message_loop/message_loop.h"
-#include "base/run_loop.h"
-#include "base/strings/stringprintf.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/test/launcher/unit_test_launcher.h"
-#include "base/test/test_suite.h"
-#include "base/time/time.h"
-#include "base/trace_event/trace_event.h"
-#include "components/display_compositor/gl_helper.h"
-#include "components/display_compositor/gl_helper_readback_support.h"
-#include "components/display_compositor/gl_helper_scaling.h"
-#include "gpu/command_buffer/client/gl_in_process_context.h"
-#include "gpu/command_buffer/client/gles2_implementation.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkTypes.h"
-#include "ui/gl/gl_implementation.h"
-
-namespace display_compositor {
-
-display_compositor::GLHelper::ScalerQuality kQualities[] = {
- display_compositor::GLHelper::SCALER_QUALITY_BEST,
- display_compositor::GLHelper::SCALER_QUALITY_GOOD,
- display_compositor::GLHelper::SCALER_QUALITY_FAST,
-};
-
-const char* kQualityNames[] = {
- "best", "good", "fast",
-};
-
-class GLHelperTest : public testing::Test {
- protected:
- void SetUp() override {
- gpu::gles2::ContextCreationAttribHelper 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_.reset(gpu::GLInProcessContext::Create(
- nullptr, /* service */
- nullptr, /* surface */
- true, /* offscreen */
- gfx::kNullAcceleratedWidget, /* window */
- gfx::Size(1, 1), /* size */
- nullptr, /* share_context */
- attributes, gfx::PreferDiscreteGpu,
- ::gpu::GLInProcessContextSharedMemoryLimits(),
- nullptr, /* gpu_memory_buffer_manager */
- nullptr /* image_factory */));
- gl_ = context_->GetImplementation();
- gpu::ContextSupport* support = context_->GetImplementation();
-
- helper_.reset(new display_compositor::GLHelper(gl_, support));
- helper_scaling_.reset(
- new display_compositor::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(std::max(0, std::min(x, pixels->width() - 1)),
- std::max(0, std::min(y, pixels->height() - 1)));
- return (*data) >> (c * 8) & 0xff;
- } else {
- DCHECK_EQ(pixels->bytesPerPixel(), 1);
- DCHECK_EQ(c, 0);
- return *pixels->getAddr8(std::max(0, std::min(x, pixels->width() - 1)),
- std::max(0, std::min(y, 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 = std::max(0, std::min(v, 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 = std::max(0, std::min(v, 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].src_size.width(),
- scaler_stages[i].src_size.height(), scaler_stages[i].dst_size.width(),
- scaler_stages[i].dst_size.height()));
- 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(
- display_compositor::GLHelper::ScalerQuality quality,
- const std::vector<GLHelperScaling::ScalerStage>& scaler_stages,
- const gfx::Size& dst_size,
- const std::string& message) {
- bool previous_error = HasFailure();
- // First, check that the input size for each stage is equal to
- // the output size of the previous stage.
- for (size_t i = 1; i < scaler_stages.size(); i++) {
- EXPECT_EQ(scaler_stages[i - 1].dst_size.width(),
- scaler_stages[i].src_size.width());
- EXPECT_EQ(scaler_stages[i - 1].dst_size.height(),
- scaler_stages[i].src_size.height());
- EXPECT_EQ(scaler_stages[i].src_subrect.x(), 0);
- EXPECT_EQ(scaler_stages[i].src_subrect.y(), 0);
- EXPECT_EQ(scaler_stages[i].src_subrect.width(),
- scaler_stages[i].src_size.width());
- EXPECT_EQ(scaler_stages[i].src_subrect.height(),
- scaler_stages[i].src_size.height());
- }
-
- // Check the output size matches the destination of the last stage
- EXPECT_EQ(scaler_stages[scaler_stages.size() - 1].dst_size.width(),
- dst_size.width());
- EXPECT_EQ(scaler_stages[scaler_stages.size() - 1].dst_size.height(),
- dst_size.height());
-
- // Used to verify that up-scales are not attempted after some
- // other scale.
- bool scaled_x = false;
- bool scaled_y = false;
-
- 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].src_subrect.width()) /
- static_cast<double>(scaler_stages[i].dst_size.width());
- double y_scale =
- static_cast<double>(scaler_stages[i].src_subrect.height()) /
- static_cast<double>(scaler_stages[i].dst_size.height());
-
- 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 != display_compositor::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;
- }
- }
-
- 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);
- }
-
- // Encodes an RGBA bitmap to grayscale.
- // Reference implementation for
- // GLHelper::CopyToTextureImpl::EncodeTextureAsGrayscale.
- void EncodeToGrayscaleSlow(SkBitmap* input, SkBitmap* output) {
- const float kRGBtoGrayscaleColorWeights[3] = {0.213f, 0.715f, 0.072f};
- CHECK_EQ(kAlpha_8_SkColorType, output->colorType());
- CHECK_EQ(input->width(), output->width());
- CHECK_EQ(input->height(), output->height());
- CHECK_EQ(input->colorType(), kRGBA_8888_SkColorType);
-
- for (int dst_y = 0; dst_y < output->height(); dst_y++) {
- for (int dst_x = 0; dst_x < output->width(); dst_x++) {
- float c0 = ChannelAsFloat(input, dst_x, dst_y, 0);
- float c1 = ChannelAsFloat(input, dst_x, dst_y, 1);
- float c2 = ChannelAsFloat(input, dst_x, dst_y, 2);
- float value = c0 * kRGBtoGrayscaleColorWeights[0] +
- c1 * kRGBtoGrayscaleColorWeights[1] +
- c2 * kRGBtoGrayscaleColorWeights[2];
- SetChannel(output, dst_x, dst_y, 0,
- static_cast<int>(value * 255.0f + 0.5f));
- }
- }
- }
-
- // Very slow bicubic / bilinear scaler for reference.
- void ScaleSlow(SkBitmap* input,
- SkBitmap* output,
- display_compositor::GLHelper::ScalerQuality quality) {
- float xscale = static_cast<float>(input->width()) / output->width();
- float yscale = static_cast<float>(input->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 = (dst_x + 0.5f) * xscale;
- float dst_y_in_src = (dst_y + 0.5f) * yscale;
-
- float value = 0.0f;
- float sum = 0.0f;
- switch (quality) {
- case display_compositor::GLHelper::SCALER_QUALITY_BEST:
- for (int src_y = -10; src_y < input->height() + 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 = -10; src_x < input->width() + 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 display_compositor::GLHelper::SCALER_QUALITY_GOOD: {
- int xshift = 0, yshift = 0;
- while ((output->width() << xshift) < input->width()) {
- xshift++;
- }
- while ((output->height() << yshift) < input->height()) {
- yshift++;
- }
- int xmag = 1 << xshift;
- int ymag = 1 << yshift;
- if (xmag == 4 && output->width() * 3 >= input->width()) {
- xmag = 3;
- }
- if (ymag == 4 && output->height() * 3 >= input->height()) {
- ymag = 3;
- }
- for (int x = 0; x < xmag; x++) {
- for (int y = 0; y < ymag; y++) {
- value += Bilinear(
- input, (dst_x * xmag + x + 0.5) * xscale / xmag,
- (dst_y * ymag + y + 0.5) * yscale / ymag, channel);
- sum += 1.0;
- }
- }
- break;
- }
-
- case display_compositor::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--;
- }
- }
-
- // Swaps red and blue channels in each pixel in a 32-bit bitmap.
- void SwizzleSKBitmap(SkBitmap* bitmap) {
- int bpp = bitmap->bytesPerPixel();
- DCHECK(bpp == 4);
- for (int y = 0; y < bitmap->height(); y++) {
- for (int x = 0; x < bitmap->width(); x++) {
- // Swap channels 0 and 2 (red and blue)
- int c0 = Channel(bitmap, x, y, 0);
- int c2 = Channel(bitmap, x, y, 2);
- SetChannel(bitmap, x, y, 2, c0);
- SetChannel(bitmap, x, y, 0, c2);
- }
- }
- }
-
- // gl_helper scales recursively, so we'll need to do that
- // in the reference implementation too.
- void ScaleSlowRecursive(SkBitmap* input,
- SkBitmap* output,
- display_compositor::GLHelper::ScalerQuality quality) {
- if (quality == display_compositor::GLHelper::SCALER_QUALITY_FAST ||
- quality == display_compositor::GLHelper::SCALER_QUALITY_GOOD) {
- ScaleSlow(input, output, quality);
- return;
- }
-
- float xscale = static_cast<float>(output->width()) / input->width();
-
- // This corresponds to all the operations we can do directly.
- float yscale = static_cast<float>(output->height()) / input->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, output, quality);
- return;
- }
-
- // Now we break the problem down into smaller pieces, using the
- // operations available.
- int xtmp = input->width();
- int ytmp = input->height();
-
- if (output->height() != input->height()) {
- ytmp = output->height();
- while (ytmp < input->height() && ytmp * 2 != input->height()) {
- ytmp += ytmp;
- }
- } else {
- xtmp = output->width();
- while (xtmp < input->width() && xtmp * 2 != input->width()) {
- xtmp += xtmp;
- }
- }
-
- SkBitmap tmp;
- tmp.allocN32Pixels(xtmp, ytmp);
-
- ScaleSlowRecursive(input, &tmp, quality);
- ScaleSlowRecursive(&tmp, output, quality);
- }
-
- // Creates an RGBA SkBitmap
- std::unique_ptr<SkBitmap> CreateTestBitmap(int width,
- int height,
- int test_pattern) {
- std::unique_ptr<SkBitmap> bitmap(new SkBitmap);
- bitmap->allocPixels(SkImageInfo::Make(width, height, kRGBA_8888_SkColorType,
- kPremul_SkAlphaType));
-
- for (int x = 0; x < width; ++x) {
- for (int y = 0; y < height; ++y) {
- switch (test_pattern) {
- case 0: // Smooth test pattern
- SetChannel(bitmap.get(), x, y, 0, x * 10);
- SetChannel(bitmap.get(), x, y, 0, y == 0 ? x * 50 : x * 10);
- SetChannel(bitmap.get(), x, y, 1, y * 10);
- SetChannel(bitmap.get(), x, y, 2, (x + y) * 10);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- case 1: // Small blocks
- SetChannel(bitmap.get(), x, y, 0, x & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 1, y & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 2, (x + y) & 1 ? 255 : 0);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- case 2: // Medium blocks
- SetChannel(bitmap.get(), x, y, 0, 10 + x / 2 * 50);
- SetChannel(bitmap.get(), x, y, 1, 10 + y / 3 * 50);
- SetChannel(bitmap.get(), x, y, 2, (x + y) / 5 * 50 + 5);
- SetChannel(bitmap.get(), x, y, 3, 255);
- break;
- }
- }
- }
- return bitmap;
- }
-
- // Binds texture and framebuffer and loads the bitmap pixels into the texture.
- void BindTextureAndFrameBuffer(GLuint texture,
- GLuint framebuffer,
- SkBitmap* bitmap,
- int width,
- int height) {
- gl_->BindFramebuffer(GL_FRAMEBUFFER, framebuffer);
- gl_->BindTexture(GL_TEXTURE_2D, texture);
- gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
- GL_UNSIGNED_BYTE, bitmap->getPixels());
- }
-
- // Create a test image, transform it using
- // GLHelper::CropScaleReadbackAndCleanTexture and a reference implementation
- // and compare the results.
- void TestCropScaleReadbackAndCleanTexture(int xsize,
- int ysize,
- int scaled_xsize,
- int scaled_ysize,
- int test_pattern,
- SkColorType out_color_type,
- bool swizzle,
- size_t quality_index) {
- DCHECK(out_color_type == kAlpha_8_SkColorType ||
- out_color_type == kRGBA_8888_SkColorType ||
- out_color_type == kBGRA_8888_SkColorType);
- GLuint src_texture;
- gl_->GenTextures(1, &src_texture);
- GLuint framebuffer;
- gl_->GenFramebuffers(1, &framebuffer);
- std::unique_ptr<SkBitmap> input_pixels =
- CreateTestBitmap(xsize, ysize, test_pattern);
- BindTextureAndFrameBuffer(src_texture, framebuffer, input_pixels.get(),
- xsize, ysize);
-
- std::string message = base::StringPrintf(
- "input size: %dx%d "
- "output size: %dx%d "
- "pattern: %d , quality: %s, "
- "out_color_type: %d",
- xsize, ysize, scaled_xsize, scaled_ysize, test_pattern,
- kQualityNames[quality_index], out_color_type);
-
- // Transform the bitmap using GLHelper::CropScaleReadbackAndCleanTexture.
- SkBitmap output_pixels;
- output_pixels.allocPixels(SkImageInfo::Make(
- scaled_xsize, scaled_ysize, out_color_type, kPremul_SkAlphaType));
- base::RunLoop run_loop;
- gfx::Size encoded_texture_size;
- helper_->CropScaleReadbackAndCleanTexture(
- src_texture, gfx::Size(xsize, ysize), gfx::Rect(xsize, ysize),
- gfx::Size(scaled_xsize, scaled_ysize),
- static_cast<unsigned char*>(output_pixels.getPixels()), out_color_type,
- base::Bind(&callcallback, run_loop.QuitClosure()),
- kQualities[quality_index]);
- run_loop.Run();
- // CropScaleReadbackAndCleanTexture flips the pixels. Flip them back.
- FlipSKBitmap(&output_pixels);
-
- // If the bitmap shouldn't have changed - compare against input.
- if (xsize == scaled_xsize && ysize == scaled_ysize &&
- out_color_type != kAlpha_8_SkColorType) {
- const std::vector<GLHelperScaling::ScalerStage> dummy_stages;
- Compare(input_pixels.get(), &output_pixels, 0, nullptr, dummy_stages,
- message + " comparing against input");
- return;
- }
-
- // Now transform the bitmap using the reference implementation.
- SkBitmap scaled_pixels;
- scaled_pixels.allocPixels(SkImageInfo::Make(scaled_xsize, scaled_ysize,
- kRGBA_8888_SkColorType,
- kPremul_SkAlphaType));
- SkBitmap truth_pixels;
- // Step 1: Scale
- ScaleSlowRecursive(input_pixels.get(), &scaled_pixels,
- kQualities[quality_index]);
- // Step 2: Encode to grayscale if needed.
- if (out_color_type == kAlpha_8_SkColorType) {
- truth_pixels.allocPixels(SkImageInfo::Make(
- scaled_xsize, scaled_ysize, out_color_type, kPremul_SkAlphaType));
- EncodeToGrayscaleSlow(&scaled_pixels, &truth_pixels);
- } else {
- truth_pixels = scaled_pixels;
- }
-
- // Now compare the results.
- SkAutoLockPixels lock_input(truth_pixels);
- const std::vector<GLHelperScaling::ScalerStage> dummy_stages;
- Compare(&truth_pixels, &output_pixels, 2, input_pixels.get(), dummy_stages,
- message + " comparing against transformed/scaled");
-
- gl_->DeleteTextures(1, &src_texture);
- gl_->DeleteFramebuffers(1, &framebuffer);
- }
-
- // Scaling test: Create a test image, scale it using GLHelperScaling
- // and a reference implementation and compare the results.
- void TestScale(int xsize,
- int ysize,
- int scaled_xsize,
- int scaled_ysize,
- int test_pattern,
- size_t quality_index,
- bool flip) {
- GLuint src_texture;
- gl_->GenTextures(1, &src_texture);
- GLuint framebuffer;
- gl_->GenFramebuffers(1, &framebuffer);
- std::unique_ptr<SkBitmap> input_pixels =
- CreateTestBitmap(xsize, ysize, test_pattern);
- BindTextureAndFrameBuffer(src_texture, framebuffer, input_pixels.get(),
- xsize, ysize);
-
- std::string message = base::StringPrintf(
- "input size: %dx%d "
- "output size: %dx%d "
- "pattern: %d quality: %s",
- xsize, ysize, scaled_xsize, scaled_ysize, test_pattern,
- kQualityNames[quality_index]);
-
- std::vector<GLHelperScaling::ScalerStage> stages;
- helper_scaling_->ComputeScalerStages(
- kQualities[quality_index], gfx::Size(xsize, ysize),
- gfx::Rect(0, 0, xsize, ysize), gfx::Size(scaled_xsize, scaled_ysize),
- flip, false, &stages);
- ValidateScalerStages(kQualities[quality_index], stages,
- gfx::Size(scaled_xsize, scaled_ysize), message);
-
- GLuint dst_texture = helper_->CopyAndScaleTexture(
- src_texture, gfx::Size(xsize, ysize),
- gfx::Size(scaled_xsize, scaled_ysize), flip, kQualities[quality_index]);
-
- SkBitmap output_pixels;
- output_pixels.allocPixels(SkImageInfo::Make(scaled_xsize, scaled_ysize,
- kRGBA_8888_SkColorType,
- kPremul_SkAlphaType));
-
- helper_->ReadbackTextureSync(
- dst_texture, gfx::Rect(0, 0, scaled_xsize, scaled_ysize),
- static_cast<unsigned char*>(output_pixels.getPixels()),
- kRGBA_8888_SkColorType);
- if (flip) {
- // Flip the pixels back.
- FlipSKBitmap(&output_pixels);
- }
-
- // If the bitmap shouldn't have changed - compare against input.
- if (xsize == scaled_xsize && ysize == scaled_ysize) {
- 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_xsize, scaled_ysize,
- kRGBA_8888_SkColorType,
- kPremul_SkAlphaType));
- ScaleSlowRecursive(input_pixels.get(), &truth_pixels,
- kQualities[quality_index]);
- Compare(&truth_pixels, &output_pixels, 2, input_pixels.get(), stages,
- message + " comparing against scaled");
-
- gl_->DeleteTextures(1, &src_texture);
- gl_->DeleteTextures(1, &dst_texture);
- gl_->DeleteFramebuffers(1, &framebuffer);
- }
-
- // 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::Size(xsize, ysize),
- gfx::Rect(0, 0, xsize, ysize), gfx::Size(dst_xsize, dst_ysize), false,
- false, &stages);
- ValidateScalerStages(kQualities[quality], stages,
- gfx::Size(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(display_compositor::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::Size(xsize, ysize), gfx::Rect(0, 0, xsize, ysize),
- gfx::Size(dst_xsize, dst_ysize), false, false, &stages);
- ValidateScalerStages(display_compositor::GLHelper::SCALER_QUALITY_GOOD,
- stages, gfx::Size(dst_xsize, dst_ysize), "");
- EXPECT_EQ(PrintStages(stages), description);
- }
-
- static void callcallback(const base::Callback<void()>& callback,
- bool result) {
- callback.Run();
- }
-
- void DrawGridToBitmap(int w,
- int h,
- SkColor background_color,
- SkColor grid_color,
- int grid_pitch,
- int grid_width,
- 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));
-
- if (bmp.colorType() == kRGBA_8888_SkColorType ||
- bmp.colorType() == kBGRA_8888_SkColorType) {
- *bmp.getAddr32(x, y) = (on_grid ? grid_color : background_color);
- } else if (bmp.colorType() == kRGB_565_SkColorType) {
- *bmp.getAddr16(x, y) = (on_grid ? grid_color : background_color);
- }
- }
- }
- }
-
- void DrawCheckerToBitmap(int w,
- int h,
- SkColor color1,
- SkColor color2,
- int rect_w,
- int rect_h,
- 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
- if (bmp.colorType() == kRGBA_8888_SkColorType ||
- bmp.colorType() == kBGRA_8888_SkColorType) {
- *bmp.getAddr32(x, y) = (use_color2 ? color2 : color1);
- } else if (bmp.colorType() == kRGB_565_SkColorType) {
- *bmp.getAddr16(x, y) = (use_color2 ? color2 : color1);
- }
- }
- }
- }
-
- bool ColorComponentsClose(SkColor component1,
- SkColor component2,
- SkColorType color_type) {
- int c1 = static_cast<int>(component1);
- int c2 = static_cast<int>(component2);
- bool result = false;
- switch (color_type) {
- case kRGBA_8888_SkColorType:
- case kBGRA_8888_SkColorType:
- result = (std::abs(c1 - c2) == 0);
- break;
- case kRGB_565_SkColorType:
- result = (std::abs(c1 - c2) <= 7);
- break;
- default:
- break;
- }
- return result;
- }
-
- bool ColorsClose(SkColor color1, SkColor color2, SkColorType color_type) {
- bool red = ColorComponentsClose(SkColorGetR(color1), SkColorGetR(color2),
- color_type);
- bool green = ColorComponentsClose(SkColorGetG(color1), SkColorGetG(color2),
- color_type);
- bool blue = ColorComponentsClose(SkColorGetB(color1), SkColorGetB(color2),
- color_type);
- bool alpha = ColorComponentsClose(SkColorGetA(color1), SkColorGetA(color2),
- color_type);
- if (color_type == kRGB_565_SkColorType) {
- return red && blue && green;
- }
- 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;
-
- SkAutoLockPixels lock1(bmp1);
- SkAutoLockPixels lock2(bmp2);
- 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),
- bmp1.colorType())) {
- LOG(ERROR) << "Bitmap color comparision 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);
- GLenum format = 0;
- switch (color_type) {
- case kBGRA_8888_SkColorType:
- format = GL_BGRA_EXT;
- break;
- case kRGBA_8888_SkColorType:
- format = GL_RGBA;
- break;
- case kRGB_565_SkColorType:
- format = GL_RGB;
- break;
- default:
- NOTREACHED();
- }
- GLenum type = (color_type == kRGB_565_SkColorType) ? GL_UNSIGNED_SHORT_5_6_5
- : GL_UNSIGNED_BYTE;
- gl_->TexImage2D(GL_TEXTURE_2D, 0, format, src_size.width(),
- src_size.height(), 0, format, type,
- input_pixels.getPixels());
- }
-
- void ReadBackTexture(GLuint src_texture,
- const gfx::Size& src_size,
- unsigned char* pixels,
- SkColorType color_type,
- bool async) {
- if (async) {
- base::RunLoop run_loop;
- helper_->ReadbackTextureAsync(
- src_texture, src_size, pixels, color_type,
- base::Bind(&callcallback, run_loop.QuitClosure()));
- run_loop.Run();
- } else {
- helper_->ReadbackTextureSync(src_texture, gfx::Rect(src_size), pixels,
- color_type);
- }
- }
- // Test basic format readback.
- bool TestTextureFormatReadback(const gfx::Size& src_size,
- SkColorType color_type,
- bool async) {
- SkImageInfo info = SkImageInfo::Make(src_size.width(), src_size.height(),
- color_type, kPremul_SkAlphaType);
- if (!helper_->IsReadbackConfigSupported(color_type)) {
- LOG(INFO) << "Skipping test format not supported" << color_type;
- return true;
- }
- 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());
- ReadBackTexture(src_texture, src_size, pixels, color_type, async);
- bool result = IsEqual(input_pixels, output_pixels);
- if (!result) {
- LOG(ERROR) << "Bitmap comparision 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);
- ReadBackTexture(src_texture, src_size, pixels, color_type, async);
- result = IsEqual(input_pixels, output_pixels);
- if (!result) {
- LOG(ERROR) << "Bitmap comparision 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);
- ReadBackTexture(src_texture, src_size, pixels, color_type, async);
- result = IsEqual(input_pixels, output_pixels);
- if (!result) {
- LOG(ERROR) << "Bitmap comparision 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) {
- std::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(
- display_compositor::GLHelper::SCALER_QUALITY_GOOD,
- gfx::Size(xsize, ysize), gfx::Rect(0, 0, xsize, ysize),
- gfx::Size(dst_xsize, dst_ysize), false, false, &x_ops_, &y_ops_,
- &stages);
- EXPECT_EQ(x_ops_.size(), 0U);
- EXPECT_EQ(y_ops_.size(), 0U);
- ValidateScalerStages(display_compositor::GLHelper::SCALER_QUALITY_GOOD,
- stages, gfx::Size(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");
- }
-
- std::unique_ptr<gpu::GLInProcessContext> context_;
- gpu::gles2::GLES2Interface* gl_;
- std::unique_ptr<display_compositor::GLHelper> helper_;
- std::unique_ptr<display_compositor::GLHelperScaling> helper_scaling_;
- std::deque<GLHelperScaling::ScaleOp> x_ops_, y_ops_;
-};
-
-class GLHelperPixelTest : public GLHelperTest {
- private:
- gfx::DisableNullDrawGLBindings enable_pixel_output_;
-};
-
-TEST_F(GLHelperTest, RGBASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kRGBA_8888_SkColorType, false);
- EXPECT_EQ(result, true);
-}
-
-TEST_F(GLHelperTest, BGRASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kBGRA_8888_SkColorType, false);
- EXPECT_EQ(result, true);
-}
-
-TEST_F(GLHelperTest, RGB565SyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kRGB_565_SkColorType, false);
- EXPECT_EQ(result, true);
-}
-
-TEST_F(GLHelperTest, RGBAASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kRGBA_8888_SkColorType, true);
- EXPECT_EQ(result, true);
-}
-
-TEST_F(GLHelperTest, BGRAASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kBGRA_8888_SkColorType, true);
- EXPECT_EQ(result, true);
-}
-
-TEST_F(GLHelperTest, RGB565ASyncReadbackTest) {
- const int kTestSize = 64;
- bool result = TestTextureFormatReadback(gfx::Size(kTestSize, kTestSize),
- kRGB_565_SkColorType, true);
- EXPECT_EQ(result, true);
-}
-
-int kRGBReadBackSizes[] = {3, 6, 16};
-
-class GLHelperPixelReadbackTest
- : public GLHelperPixelTest,
- public ::testing::WithParamInterface<std::tr1::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::tr1::get<0>(GetParam());
- unsigned int x = std::tr1::get<1>(GetParam());
- unsigned int y = std::tr1::get<2>(GetParam());
- unsigned int dst_x = std::tr1::get<3>(GetParam());
- unsigned int dst_y = std::tr1::get<4>(GetParam());
-
- for (int flip = 0; flip <= 1; flip++) {
- for (int pattern = 0; pattern < 3; pattern++) {
- TestScale(kRGBReadBackSizes[x], kRGBReadBackSizes[y],
- kRGBReadBackSizes[dst_x], kRGBReadBackSizes[dst_y], pattern,
- q_index, flip == 1);
- if (HasFailure()) {
- return;
- }
- }
- }
-}
-
-// Per pixel tests, all sizes are small so that we can print
-// out the generated bitmaps.
-TEST_P(GLHelperPixelReadbackTest, CropScaleReadbackAndCleanTextureTest) {
- unsigned int q_index = std::tr1::get<0>(GetParam());
- unsigned int x = std::tr1::get<1>(GetParam());
- unsigned int y = std::tr1::get<2>(GetParam());
- unsigned int dst_x = std::tr1::get<3>(GetParam());
- unsigned int dst_y = std::tr1::get<4>(GetParam());
-
- const SkColorType kColorTypes[] = {
- kAlpha_8_SkColorType, kRGBA_8888_SkColorType, kBGRA_8888_SkColorType};
- for (size_t color_type = 0; color_type < arraysize(kColorTypes);
- color_type++) {
- for (int pattern = 0; pattern < 3; pattern++) {
- TestCropScaleReadbackAndCleanTexture(
- kRGBReadBackSizes[x], kRGBReadBackSizes[y], kRGBReadBackSizes[dst_x],
- kRGBReadBackSizes[dst_y], pattern, kColorTypes[color_type], false,
- q_index);
- if (HasFailure())
- return;
- }
- }
-}
-
-INSTANTIATE_TEST_CASE_P(
- ,
- GLHelperPixelReadbackTest,
- ::testing::Combine(
- ::testing::Range<unsigned int>(0, arraysize(kQualities)),
- ::testing::Range<unsigned int>(0, arraysize(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, arraysize(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, arraysize(kRGBReadBackSizes)),
- ::testing::Range<unsigned int>(0, arraysize(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 < arraysize(kQualities); q++) {
- for (size_t x = 0; x < arraysize(sizes); x++) {
- for (size_t y = 0; y < arraysize(sizes); y++) {
- for (size_t dst_x = 0; dst_x < arraysize(sizes); dst_x++) {
- for (size_t dst_y = 0; dst_y < arraysize(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(display_compositor::GLHelper::SCALER_QUALITY_GOOD, 1024, 700,
- 1280, 720, "1024x700 -> 1280x720 bilinear\n");
- // Slight downscale should use BILINEAR2X2.
- CheckPipeline(display_compositor::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(display_compositor::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 display_compositor
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