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1 // Copyright 2011 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_GEOMETRY_BINDING_H_ | |
6 #define CC_OUTPUT_GEOMETRY_BINDING_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "cc/output/gl_renderer.h" // For the GLC() macro. | |
10 #include "gpu/command_buffer/client/gles2_interface.h" | |
11 #include "third_party/khronos/GLES2/gl2.h" | |
12 #include "third_party/khronos/GLES2/gl2ext.h" | |
13 #include "ui/gfx/geometry/rect_f.h" | |
14 | |
15 namespace gfx { | |
16 class QuadF; | |
17 class Quad; | |
18 class QuadIndex; | |
19 class PointF; | |
20 } | |
21 | |
22 namespace cc { | |
23 | |
24 struct GeometryBindingVertex { | |
25 float a_position[3]; | |
26 float a_texCoord[2]; | |
27 // Index of the vertex, divide by 4 to have the matrix for this quad. | |
28 float a_index; | |
29 }; | |
30 | |
31 struct GeometryBindingQuad { | |
32 GeometryBindingQuad(); | |
33 GeometryBindingQuad(const GeometryBindingVertex& vert0, | |
34 const GeometryBindingVertex& vert1, | |
35 const GeometryBindingVertex& vert2, | |
36 const GeometryBindingVertex& vert3); | |
37 GeometryBindingVertex v0, v1, v2, v3; | |
38 }; | |
39 | |
40 struct GeometryBindingQuadIndex { | |
41 GeometryBindingQuadIndex(); | |
42 GeometryBindingQuadIndex(uint16 index0, | |
43 uint16 index1, | |
44 uint16 index2, | |
45 uint16 index3, | |
46 uint16 index4, | |
47 uint16 index5); | |
48 | |
49 uint16 data[6]; | |
50 }; | |
51 | |
52 class DrawQuad; | |
53 class DrawPolygon; | |
54 | |
55 struct GeometryBinding { | |
56 // All layer shaders share the same attribute locations for the vertex | |
57 // positions and texture coordinates. This allows switching shaders without | |
58 // rebinding attribute arrays. | |
59 static int PositionAttribLocation() { return 0; } | |
60 static int TexCoordAttribLocation() { return 1; } | |
61 static int TriangleIndexAttribLocation() { return 2; } | |
62 }; | |
63 | |
64 void SetupGLContext(gpu::gles2::GLES2Interface* gl, | |
65 GLuint quad_elements_vbo, | |
66 GLuint quad_vertices_vbo); | |
67 | |
68 } // namespace cc | |
69 | |
70 #endif // CC_OUTPUT_GEOMETRY_BINDING_H_ | |
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