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1 // Copyright 2013 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/output/shader.h" | |
6 | |
7 #include "cc/test/test_gles2_interface.h" | |
8 #include "cc/test/test_web_graphics_context_3d.h" | |
9 #include "testing/gtest/include/gtest/gtest.h" | |
10 #include "ui/gfx/geometry/point.h" | |
11 #include "ui/gfx/geometry/size.h" | |
12 | |
13 namespace cc { | |
14 | |
15 TEST(ShaderTest, HighpThresholds) { | |
16 // The test context always uses a mediump precision of 10 bits which | |
17 // corresponds to a native highp threshold of 2^10 = 1024 | |
18 scoped_ptr<TestWebGraphicsContext3D> stub_context = | |
19 TestWebGraphicsContext3D::Create(); | |
20 TestGLES2Interface stub_gl(stub_context.get()); | |
21 | |
22 int threshold_cache = 0; | |
23 int threshold_min; | |
24 gfx::Point closePoint(512, 512); | |
25 gfx::Size smallSize(512, 512); | |
26 gfx::Point farPoint(2560, 2560); | |
27 gfx::Size bigSize(2560, 2560); | |
28 | |
29 threshold_min = 0; | |
30 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
31 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
32 closePoint)); | |
33 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
34 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
35 smallSize)); | |
36 EXPECT_EQ(TEX_COORD_PRECISION_HIGH, | |
37 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
38 farPoint)); | |
39 EXPECT_EQ(TEX_COORD_PRECISION_HIGH, | |
40 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
41 bigSize)); | |
42 | |
43 threshold_min = 3000; | |
44 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
45 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
46 closePoint)); | |
47 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
48 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
49 smallSize)); | |
50 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
51 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
52 farPoint)); | |
53 EXPECT_EQ(TEX_COORD_PRECISION_MEDIUM, | |
54 TexCoordPrecisionRequired(&stub_gl, &threshold_cache, threshold_min, | |
55 bigSize)); | |
56 } | |
57 | |
58 } // namespace cc | |
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