| // 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. |
| |
| #ifndef CC_GL_RENDERER_DRAW_CACHE_H_ |
| #define CC_GL_RENDERER_DRAW_CACHE_H_ |
| |
| #include <vector> |
| |
| |
| // Collects 4 floats at a time for easy upload to GL. |
| struct Float4 { float data[4]; }; |
| |
| // Collects 16 floats at a time for easy upload to GL. |
| struct Float16 { float data[16]; }; |
| |
| // A cache for storing textured quads to be drawn. Stores the minimum required |
| // data to tell if two back to back draws only differ in their transform. Quads |
| // that only differ by transform may be coalesced into a single draw call. |
| struct TexturedQuadDrawCache { |
| TexturedQuadDrawCache(); |
| ~TexturedQuadDrawCache(); |
| |
| // Values tracked to determine if textured quads may be coalesced. |
| int program_id; |
| int resource_id; |
| bool use_premultiplied_alpha; |
| bool needs_blending; |
| |
| // Information about the program binding that is required to draw. |
| int uv_xform_location; |
| int vertex_opacity_location; |
| int matrix_location; |
| int sampler_location; |
| |
| // A cache for the coalesced quad data. |
| std::vector<Float4> uv_xform_data; |
| std::vector<float> vertex_opacity_data; |
| std::vector<Float16> matrix_data; |
| }; |
| |
| #endif // CC_GL_RENDERER_DRAW_CACHE_H_ |
| |