cc/scheduler/texture_uploader_unittest.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/scheduler/texture_uploader.h"
   6
   7 #include "cc/base/util.h"
   8 #include "cc/debug/test_web_graphics_context_3d.h"
   9 #include "cc/resources/prioritized_resource.h"
  10 #include "testing/gmock/include/gmock/gmock.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12 #include "third_party/khronos/GLES2/gl2.h"
  13 #include "third_party/khronos/GLES2/gl2ext.h"
  14
  15 using WebKit::WGC3Denum;
  16 using WebKit::WGC3Dint;
  17 using WebKit::WGC3Dsizei;
  18 using WebKit::WebGLId;
  19 using WebKit::WGC3Duint;
  20
  21 namespace cc {
  22 namespace {
  23
  24 class TestWebGraphicsContext3DTextureUpload : public TestWebGraphicsContext3D {
  25  public:
  26   TestWebGraphicsContext3DTextureUpload()
  27       : result_available_(0),
  28         unpack_alignment_(4) {}
  29
  30   virtual void pixelStorei(WGC3Denum pname, WGC3Dint param) OVERRIDE {
  31     switch (pname) {
  32       case GL_UNPACK_ALIGNMENT:
  33         // Param should be a power of two <= 8.
  34         EXPECT_EQ(0, param & (param - 1));
  35         EXPECT_GE(8, param);
  36         switch (param) {
  37           case 1:
  38           case 2:
  39           case 4:
  40           case 8:
  41             unpack_alignment_ = param;
  42             break;
  43           default:
  44             break;
  45         }
  46         break;
  47       default:
  48         break;
  49     }
  50   }
  51
  52   virtual void getQueryObjectuivEXT(WebGLId, WGC3Denum type, WGC3Duint* value)
  53       OVERRIDE {
  54     switch (type) {
  55       case GL_QUERY_RESULT_AVAILABLE_EXT:
  56         *value = result_available_;
  57         break;
  58       default:
  59         *value = 0;
  60         break;
  61     }
  62   }
  63
  64   virtual void texSubImage2D(WGC3Denum target,
  65                              WGC3Dint level,
  66                              WGC3Dint xoffset,
  67                              WGC3Dint yoffset,
  68                              WGC3Dsizei width,
  69                              WGC3Dsizei height,
  70                              WGC3Denum format,
  71                              WGC3Denum type,
  72                              const void* pixels) OVERRIDE {
  73     EXPECT_EQ(static_cast<unsigned>(GL_TEXTURE_2D), target);
  74     EXPECT_EQ(0, level);
  75     EXPECT_LE(0, width);
  76     EXPECT_LE(0, height);
  77     EXPECT_LE(0, xoffset);
  78     EXPECT_LE(0, yoffset);
  79     EXPECT_LE(0, width);
  80     EXPECT_LE(0, height);
  81
  82     // Check for allowed format/type combination.
  83     unsigned int bytes_per_pixel = 0;
  84     switch (format) {
  85       case GL_ALPHA:
  86         EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
  87         bytes_per_pixel = 1;
  88         break;
  89       case GL_RGB:
  90         EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_4_4_4_4), type);
  91         EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_5_5_5_1), type);
  92         switch (type) {
  93           case GL_UNSIGNED_BYTE:
  94             bytes_per_pixel = 3;
  95             break;
  96           case GL_UNSIGNED_SHORT_5_6_5:
  97             bytes_per_pixel = 2;
  98             break;
  99         }
 100         break;
 101       case GL_RGBA:
 102         EXPECT_NE(static_cast<unsigned>(GL_UNSIGNED_SHORT_5_6_5), type);
 103         switch (type) {
 104           case GL_UNSIGNED_BYTE:
 105             bytes_per_pixel = 4;
 106             break;
 107           case GL_UNSIGNED_SHORT_4_4_4_4:
 108             bytes_per_pixel = 2;
 109             break;
 110           case GL_UNSIGNED_SHORT_5_5_5_1:
 111             bytes_per_pixel = 2;
 112             break;
 113         }
 114         break;
 115       case GL_LUMINANCE:
 116         EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
 117         bytes_per_pixel = 1;
 118         break;
 119       case GL_LUMINANCE_ALPHA:
 120         EXPECT_EQ(static_cast<unsigned>(GL_UNSIGNED_BYTE), type);
 121         bytes_per_pixel = 2;
 122         break;
 123     }
 124
 125     // If NULL, we aren't checking texture contents.
 126     if (pixels == NULL)
 127       return;
 128
 129     const uint8* bytes = static_cast<const uint8*>(pixels);
 130     // We'll expect the first byte of every row to be 0x1, and the last byte to
 131     // be 0x2.
 132     const unsigned int stride =
 133         RoundUp(bytes_per_pixel * width, unpack_alignment_);
 134     for (WGC3Dsizei row = 0; row < height; ++row) {
 135       const uint8* row_bytes =
 136           bytes + (xoffset * bytes_per_pixel + (yoffset + row) * stride);
 137       EXPECT_EQ(0x1, row_bytes[0]);
 138       EXPECT_EQ(0x2, row_bytes[width * bytes_per_pixel - 1]);
 139     }
 140   }
 141
 142   void SetResultAvailable(unsigned result_available) {
 143     result_available_ = result_available;
 144   }
 145
 146  private:
 147   unsigned result_available_;
 148   unsigned unpack_alignment_;
 149
 150   DISALLOW_COPY_AND_ASSIGN(TestWebGraphicsContext3DTextureUpload);
 151 };
 152
 153 void UploadTexture(TextureUploader* uploader,
 154                    WGC3Denum format,
 155                    gfx::Size size,
 156                    const uint8* data) {
 157   uploader->Upload(data,
 158                    gfx::Rect(size),
 159                    gfx::Rect(size),
 160                    gfx::Vector2d(),
 161                    format,
 162                    size);
 163 }
 164
 165 TEST(TextureUploaderTest, NumBlockingUploads) {
 166   scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
 167       new TestWebGraphicsContext3DTextureUpload);
 168   scoped_ptr<TextureUploader> uploader =
 169       TextureUploader::Create(fake_context.get(), false, false);
 170
 171   fake_context->SetResultAvailable(0);
 172   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 173   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 174   EXPECT_EQ(1u, uploader->NumBlockingUploads());
 175   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 176   EXPECT_EQ(2u, uploader->NumBlockingUploads());
 177
 178   fake_context->SetResultAvailable(1);
 179   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 180   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 181   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 182   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 183   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 184   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 185 }
 186
 187 TEST(TextureUploaderTest, MarkPendingUploadsAsNonBlocking) {
 188   scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
 189       new TestWebGraphicsContext3DTextureUpload);
 190   scoped_ptr<TextureUploader> uploader =
 191       TextureUploader::Create(fake_context.get(), false, false);
 192
 193   fake_context->SetResultAvailable(0);
 194   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 195   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 196   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 197   EXPECT_EQ(2u, uploader->NumBlockingUploads());
 198
 199   uploader->MarkPendingUploadsAsNonBlocking();
 200   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 201   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 202   EXPECT_EQ(1u, uploader->NumBlockingUploads());
 203
 204   fake_context->SetResultAvailable(1);
 205   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 206   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(), NULL);
 207   uploader->MarkPendingUploadsAsNonBlocking();
 208   EXPECT_EQ(0u, uploader->NumBlockingUploads());
 209 }
 210
 211 TEST(TextureUploaderTest, UploadContentsTest) {
 212   scoped_ptr<TestWebGraphicsContext3DTextureUpload> fake_context(
 213       new TestWebGraphicsContext3DTextureUpload);
 214   scoped_ptr<TextureUploader> uploader =
 215       TextureUploader::Create(fake_context.get(), false, false);
 216   uint8 buffer[256 * 256 * 4];
 217
 218   // Upload a tightly packed 256x256 RGBA texture.
 219   memset(buffer, 0, sizeof(buffer));
 220   for (int i = 0; i < 256; ++i) {
 221     // Mark the beginning and end of each row, for the test.
 222     buffer[i * 4 * 256] = 0x1;
 223     buffer[(i + 1) * 4 * 256 - 1] = 0x2;
 224   }
 225   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(256, 256), buffer);
 226
 227   // Upload a tightly packed 41x43 RGBA texture.
 228   memset(buffer, 0, sizeof(buffer));
 229   for (int i = 0; i < 43; ++i) {
 230     // Mark the beginning and end of each row, for the test.
 231     buffer[i * 4 * 41] = 0x1;
 232     buffer[(i + 1) * 4 * 41 - 1] = 0x2;
 233   }
 234   UploadTexture(uploader.get(), GL_RGBA, gfx::Size(41, 43), buffer);
 235
 236   // Upload a tightly packed 82x86 LUMINANCE texture.
 237   memset(buffer, 0, sizeof(buffer));
 238   for (int i = 0; i < 86; ++i) {
 239     // Mark the beginning and end of each row, for the test.
 240     buffer[i * 1 * 82] = 0x1;
 241     buffer[(i + 1) * 82 - 1] = 0x2;
 242   }
 243   UploadTexture(uploader.get(), GL_LUMINANCE, gfx::Size(82, 86), buffer);
 244 }
 245
 246 }  // namespace
 247 }  // namespace cc