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// Copyright 2012 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 "cc/scheduler/texture_uploader.h"
#include "cc/base/util.h"
#include "cc/debug/test_web_graphics_context_3d.h"
#include "cc/resources/prioritized_resource.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
using WebKit::WGC3Denum;
using WebKit::WGC3Dint;
using WebKit::WGC3Dsizei;
using WebKit::WebGLId;
using WebKit::WGC3Duint;
namespace cc {
namespace {
class TestWebGraphicsContext3DTextureUpload : public TestWebGraphicsContext3D {
public:
TestWebGraphicsContext3DTextureUpload()
: result_available_(0),
unpack_alignment_(4) {}
virtual void pixelStorei(WGC3Denum pname, WGC3Dint param) OVERRIDE {
switch (pname) {
case GL_UNPACK_ALIGNMENT:
// Param should be a power of two <= 8.
EXPECT_EQ(0, param & (param - 1));
EXPECT_GE(8, param);
switch (param) {
case 1:
case 2:
case 4:
case 8:
unpack_alignment_ = param;
break;
default:
break;
}
break;
default:
break;
}
}
virtual void getQueryObjectuivEXT(WebGLId, WGC3Denum type, WGC3Duint* value)
OVERRIDE {
switch (type) {
case GL_QUERY_RESULT_AVAILABLE_EXT:
*value = result_available_;
break;
default:
*value = 0;
break;
}
}
virtual void texSubImage2D(WGC3Denum target,
WGC3Dint level,
WGC3Dint xoffset,
WGC3Dint yoffset,
WGC3Dsizei width,
WGC3Dsizei height,
WGC3Denum format,
WGC3Denum type,
const void* pixels) OVERRIDE {
EXPECT_EQ(static_cast<unsigned>(GL_TEXTURE_2D), target);
EXPECT_EQ(0, level);
EXPECT_LE(0, width);
EXPECT_LE(0, height);
EXPECT_LE(0, xoffset);
EXPECT_LE(0, yoffset);
EXPECT_LE(0, width);
EXPECT_LE(0, height);
// Check for allowed format/type combination.
unsigned int bytes_per_pixel = 0;
switch (format) {
case GL_ALPHA:
EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
bytes_per_pixel = 1;
break;
case GL_RGB:
EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_4_4_4_4), type);
EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_5_5_5_1), type);
switch (type) {
case GL_UNSIGNED_BYTE:
bytes_per_pixel = 3;
break;
case GL_UNSIGNED_SHORT_5_6_5:
bytes_per_pixel = 2;
break;
}
break;
case GL_RGBA:
EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_5_6_5), type);
switch (type) {
case GL_UNSIGNED_BYTE:
bytes_per_pixel = 4;
break;
case GL_UNSIGNED_SHORT_4_4_4_4:
bytes_per_pixel = 2;
break;
case GL_UNSIGNED_SHORT_5_5_5_1:
bytes_per_pixel = 2;
break;
}
break;
case GL_LUMINANCE:
EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
bytes_per_pixel = 1;
break;
case GL_LUMINANCE_ALPHA:
EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
bytes_per_pixel = 2;
break;
}
// If NULL, we aren't checking texture contents.
if (pixels == NULL)
return;
const uint8* bytes = static_cast<const uint8*>(pixels);
// We'll expect the first byte of every row to be 0x1, and the last byte to
// be 0x2.
const unsigned int stride =
RoundUp(bytes_per_pixel * width, unpack_alignment_);
for (WGC3Dsizei row = 0; row < height; ++row) {
const uint8* row_bytes =
bytes + (xoffset * bytes_per_pixel + (yoffset + row) * stride);
EXPECT_EQ(0x1, row_bytes[0]);
EXPECT_EQ(0x2, row_bytes[width * bytes_per_pixel - 1]);
}
}
void SetResultAvailable(unsigned result_available) {
result_available_ = result_available;
}
private:
unsigned result_available_;
unsigned unpack_alignment_;
DISALLOW_COPY_AND_ASSIGN(TestWebGraphicsContext3DTextureUpload);
};
void UploadTexture(TextureUploader* uploader,
WGC3Denum format,
gfx::Size size,
const uint8* data) {
uploader->Upload(data,
gfx::Rect(size),
gfx::Rect(size),
gfx::Vector2d(),
format,
size);
}
TEST(TextureUploaderTest, NumBlockingUploads) {
scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
new TestWebGraphicsContext3DTextureUpload);
scoped_ptr<TextureUploader> uploader =
TextureUploader::Create(fake_context.get(), false, false);
fake_context->SetResultAvailable(0);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(1u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(2u, uploader->NumBlockingUploads());
fake_context->SetResultAvailable(1);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
}
TEST(TextureUploaderTest, MarkPendingUploadsAsNonBlocking) {
scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
new TestWebGraphicsContext3DTextureUpload);
scoped_ptr<TextureUploader> uploader =
TextureUploader::Create(fake_context.get(), false, false);
fake_context->SetResultAvailable(0);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(2u, uploader->NumBlockingUploads());
uploader->MarkPendingUploadsAsNonBlocking();
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
EXPECT_EQ(1u, uploader->NumBlockingUploads());
fake_context->SetResultAvailable(1);
EXPECT_EQ(0u, uploader->NumBlockingUploads());
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
uploader->MarkPendingUploadsAsNonBlocking();
EXPECT_EQ(0u, uploader->NumBlockingUploads());
}
TEST(TextureUploaderTest, UploadContentsTest) {
scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
new TestWebGraphicsContext3DTextureUpload);
scoped_ptr<TextureUploader> uploader =
TextureUploader::Create(fake_context.get(), false, false);
uint8 buffer[256 * 256 * 4];
// Upload a tightly packed 256x256 RGBA texture.
memset(buffer, 0, sizeof(buffer));
for (int i = 0; i < 256; ++i) {
// Mark the beginning and end of each row, for the test.
buffer[i * 4 * 256] = 0x1;
buffer[(i + 1) * 4 * 256 - 1] = 0x2;
}
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(256, 256), buffer);
// Upload a tightly packed 41x43 RGBA texture.
memset(buffer, 0, sizeof(buffer));
for (int i = 0; i < 43; ++i) {
// Mark the beginning and end of each row, for the test.
buffer[i * 4 * 41] = 0x1;
buffer[(i + 1) * 4 * 41 - 1] = 0x2;
}
UploadTexture(uploader.get(), GL_RGBA, gfx::Size(41, 43), buffer);
// Upload a tightly packed 82x86 LUMINANCE texture.
memset(buffer, 0, sizeof(buffer));
for (int i = 0; i < 86; ++i) {
// Mark the beginning and end of each row, for the test.
buffer[i * 1 * 82] = 0x1;
buffer[(i + 1) * 82 - 1] = 0x2;
}
UploadTexture(uploader.get(), GL_LUMINANCE, gfx::Size(82, 86), buffer);
}
} // namespace
} // namespace cc
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