Index: cc/output/gl_renderer_draw_cache.h |
diff --git a/cc/output/gl_renderer_draw_cache.h b/cc/output/gl_renderer_draw_cache.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a16c8a5bde8bf122d9f36c8e2032076851c066ac |
--- /dev/null |
+++ b/cc/output/gl_renderer_draw_cache.h |
@@ -0,0 +1,57 @@ |
+// 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_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ |
+#define CC_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ |
+ |
+#include <vector> |
+ |
+#include "base/basictypes.h" |
+#include "third_party/skia/include/core/SkColor.h" |
+ |
+namespace cc { |
+ |
+// 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 needs_blending; |
+ bool nearest_neighbor; |
+ SkColor background_color; |
+ |
+ // Information about the program binding that is required to draw. |
+ int uv_xform_location; |
+ int background_color_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; |
+ |
+ private: |
+ DISALLOW_COPY_AND_ASSIGN(TexturedQuadDrawCache); |
+}; |
+ |
+} // namespace cc |
+ |
+#endif // CC_OUTPUT_GL_RENDERER_DRAW_CACHE_H_ |