Part 4 of cc/ directory shuffles: output

cc/geometry_binding.cc

-// Copyright 2011 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.
-
-#include "cc/geometry_binding.h"
-
-#include "cc/gl_renderer.h"  // For the GLC() macro.
-#include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
-#include "third_party/khronos/GLES2/gl2.h"
-#include "ui/gfx/rect_f.h"
-
-namespace cc {
-
-GeometryBinding::GeometryBinding(WebKit::WebGraphicsContext3D* context,
-                                 const gfx::RectF& quad_vertex_rect)
-    : context_(context),
-      quad_vertices_vbo_(0),
-      quad_elements_vbo_(0) {
-  float vertices[] = {
-      quad_vertex_rect.x(), quad_vertex_rect.bottom(), 0.0f, 0.0f,
-      1.0f, quad_vertex_rect.x(), quad_vertex_rect.y(), 0.0f,
-      0.0f, 0.0f, quad_vertex_rect.right(), quad_vertex_rect.y(),
-      0.0f, 1.0f, 0.0f, quad_vertex_rect.right(),
-      quad_vertex_rect.bottom(), 0.0f, 1.0f, 1.0f
-  };
-
-  struct Vertex {
-    float a_position[3];
-    float a_texCoord[2];
-    // Index of the vertex, divide by 4 to have the matrix for this quad.
-    float a_index;
-  };
-  struct Quad {
-    Vertex v0, v1, v2, v3;
-  };
-  struct QuadIndex {
-    uint16_t data[6];
-  };
-
-  COMPILE_ASSERT(sizeof(Quad) == 24 * sizeof(float), struct_is_densely_packed);
-  COMPILE_ASSERT(sizeof(QuadIndex) == 6 * sizeof(uint16_t),
-                 struct_is_densely_packed);
-
-  Quad quad_list[8];
-  QuadIndex quad_index_list[8];
-  for (int i = 0; i < 8; i++) {
-    Vertex v0 = { quad_vertex_rect.x(), quad_vertex_rect.bottom(), 0.0f, 0.0f,
-                  1.0f, i * 4.0f + 0.0f };
-    Vertex v1 = { quad_vertex_rect.x(), quad_vertex_rect.y(), 0.0f, 0.0f, 0.0f,
-                  i * 4.0f + 1.0f };
-    Vertex v2 = { quad_vertex_rect.right(), quad_vertex_rect.y(), 0.0f, 1.0f,
-                  0.0f, i * 4.0f + 2.0f };
-    Vertex v3 = { quad_vertex_rect.right(), quad_vertex_rect.bottom(), 0.0f,
-                  1.0f, 1.0f, i * 4.0f + 3.0f };
-    Quad x = { v0, v1, v2, v3 };
-    quad_list[i] = x;
-    QuadIndex y = { 0 + 4 * i, 1 + 4 * i, 2 + 4 * i, 3 + 4 * i, 0 + 4 * i,
-                    2 + 4 * i };
-    quad_index_list[i] = y;
-  }
-
-  GLC(context_, quad_vertices_vbo_ = context_->createBuffer());
-  GLC(context_, quad_elements_vbo_ = context_->createBuffer());
-  GLC(context_, context_->bindBuffer(GL_ARRAY_BUFFER, quad_vertices_vbo_));
-  GLC(context_,
-      context_->bufferData(
-          GL_ARRAY_BUFFER, sizeof(quad_list), quad_list, GL_STATIC_DRAW));
-  GLC(context_,
-      context_->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, quad_elements_vbo_));
-  GLC(context_,
-      context_->bufferData(GL_ELEMENT_ARRAY_BUFFER,
-                           sizeof(quad_index_list),
-                           quad_index_list,
-                           GL_STATIC_DRAW));
-}
-
-GeometryBinding::~GeometryBinding() {
-  GLC(context_, context_->deleteBuffer(quad_vertices_vbo_));
-  GLC(context_, context_->deleteBuffer(quad_elements_vbo_));
-}
-
-void GeometryBinding::PrepareForDraw() {
-  GLC(context_,
-      context_->bindBuffer(GL_ELEMENT_ARRAY_BUFFER, quad_elements_vbo_));
-
-  GLC(context_, context_->bindBuffer(GL_ARRAY_BUFFER, quad_vertices_vbo_));
-  GLC(context_,
-      context_->vertexAttribPointer(
-          PositionAttribLocation(), 3, GL_FLOAT, false, 6 * sizeof(float), 0));
-  GLC(context_,
-      context_->vertexAttribPointer(TexCoordAttribLocation(),
-                                    2,
-                                    GL_FLOAT,
-                                    false,
-                                    6 * sizeof(float),
-                                    3 * sizeof(float)));
-  GLC(context_,
-      context_->vertexAttribPointer(TriangleIndexAttribLocation(),
-                                    1,
-                                    GL_FLOAT,
-                                    false,
-                                    6 * sizeof(float),
-                                    5 * sizeof(float)));
-  GLC(context_, context_->enableVertexAttribArray(PositionAttribLocation()));
-  GLC(context_, context_->enableVertexAttribArray(TexCoordAttribLocation()));
-  GLC(context_,
-      context_->enableVertexAttribArray(TriangleIndexAttribLocation()));
-}
-
-}  // namespace cc