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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 #ifndef CC_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ | |
6 #define CC_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "third_party/skia/include/core/SkColor.h" | |
12 | |
13 namespace cc { | |
14 | |
15 // Collects 4 floats at a time for easy upload to GL. | |
16 struct Float4 { | |
17 float data[4]; | |
18 }; | |
19 | |
20 // Collects 16 floats at a time for easy upload to GL. | |
21 struct Float16 { | |
22 float data[16]; | |
23 }; | |
24 | |
25 // A cache for storing textured quads to be drawn. Stores the minimum required | |
26 // data to tell if two back to back draws only differ in their transform. Quads | |
27 // that only differ by transform may be coalesced into a single draw call. | |
28 struct TexturedQuadDrawCache { | |
29 TexturedQuadDrawCache(); | |
30 ~TexturedQuadDrawCache(); | |
31 | |
32 // Values tracked to determine if textured quads may be coalesced. | |
33 int program_id; | |
34 int resource_id; | |
35 bool needs_blending; | |
36 bool nearest_neighbor; | |
37 SkColor background_color; | |
38 | |
39 // Information about the program binding that is required to draw. | |
40 int uv_xform_location; | |
41 int background_color_location; | |
42 int vertex_opacity_location; | |
43 int matrix_location; | |
44 int sampler_location; | |
45 | |
46 // A cache for the coalesced quad data. | |
47 std::vector<Float4> uv_xform_data; | |
48 std::vector<float> vertex_opacity_data; | |
49 std::vector<Float16> matrix_data; | |
50 | |
51 private: | |
52 DISALLOW_COPY_AND_ASSIGN(TexturedQuadDrawCache); | |
53 }; | |
54 | |
55 } // namespace cc | |
56 | |
57 #endif // CC_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ | |
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