16 bpp video stream capture, render and WebGL usage - Realsense R200 & SR300 support.

cc/output/shader.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/output/shader.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 2219 matching lines @@
       float u_unsigned = TextureLookup(u_texture, uv_clamped).x;
       float v_unsigned = TextureLookup(v_texture, uv_clamped).x;
       float a_raw = TextureLookup(a_texture, ya_clamped).x;
       vec3 yuv = vec3(y_raw, u_unsigned, v_unsigned) + yuv_adj;
       vec3 rgb = yuv_matrix * yuv;
       gl_FragColor = vec4(rgb, 1.0) * (alpha * a_raw);
     }
   });
 }
 
+std::string FragmentShaderYVideo::GetShaderString(
+    TexCoordPrecision precision,
+    SamplerType sampler) const {
+  return FRAGMENT_SHADER(GetShaderHead(), GetShaderBody());
+}
+
+std::string FragmentShaderYVideo::GetShaderHead() {
+  return SHADER0([]() {
+    precision mediump float;
+    varying TexCoordPrecision vec2 v_texCoord;
+    uniform SamplerType s_texture;
+  });
+}
+
+std::string FragmentShaderYVideo::GetShaderBody() {
+  return SHADER0([]() {
+    void main() {
+      gl_FragColor = TextureLookup(s_texture, v_texCoord);
+    }
+  });
+}
+
 FragmentShaderColor::FragmentShaderColor() : color_location_(-1) {
 }
 
 void FragmentShaderColor::Init(GLES2Interface* context,
                                unsigned program,
                                int* base_uniform_index) {
   static const char* uniforms[] = {
       "color",
   };
   int locations[arraysize(uniforms)];
@@ skipping 63 matching lines @@
     void main() {
       vec4 d4 = min(edge_dist[0], edge_dist[1]);
       vec2 d2 = min(d4.xz, d4.yw);
       float aa = clamp(gl_FragCoord.w * min(d2.x, d2.y), 0.0, 1.0);
       gl_FragColor = color * aa;
     }
   });
 }
 
 }  // namespace cc