Adds support for EXT_framebuffer_multisample

I probably need more tests but in order to test
I need to figure out how to init the system
with different caps enabled from the unit tests
and that's probably not a small amount of work
so leaving that till later.

TEST=some unit tests, ran conformance tests
BUG=none

Review URL: http://codereview.chromium.org/3122033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57081 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 57 insertions, 0 deletions

diff --git a/gpu/command_buffer/client/gles2_c_lib_autogen.h b/gpu/command_buffer/client/gles2_c_lib_autogen.h
index bae1f9e..0aca957 100644
--- a/gpu/command_buffer/client/gles2_c_lib_autogen.h
+++ b/gpu/command_buffer/client/gles2_c_lib_autogen.h
@@ -500,6 +500,18 @@ void GLES2VertexAttribPointer(
 void GLES2Viewport(GLint x, GLint y, GLsizei width, GLsizei height) {
   gles2::GetGLContext()->Viewport(x, y, width, height);
 }
+void GLES2BlitFramebufferEXT(
+    GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0,
+    GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
+  gles2::GetGLContext()->BlitFramebufferEXT(
+      srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
+}
+void GLES2RenderbufferStorageMultisampleEXT(
+    GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
+    GLsizei height) {
+  gles2::GetGLContext()->RenderbufferStorageMultisampleEXT(
+      target, samples, internalformat, width, height);
+}
 void GLES2SwapBuffers() {
   gles2::GetGLContext()->SwapBuffers();
 }
diff --git a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
index aa2270b..0815df3 100644
--- a/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
+++ b/gpu/command_buffer/client/gles2_cmd_helper_autogen.h
@@ -1131,6 +1131,22 @@
     c.Init(x, y, width, height);
   }
 
+  void BlitFramebufferEXT(
+      GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0,
+      GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
+    gles2::BlitFramebufferEXT& c = GetCmdSpace<gles2::BlitFramebufferEXT>();
+    c.Init(
+        srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
+  }
+
+  void RenderbufferStorageMultisampleEXT(
+      GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
+      GLsizei height) {
+    gles2::RenderbufferStorageMultisampleEXT& c =
+        GetCmdSpace<gles2::RenderbufferStorageMultisampleEXT>();
+    c.Init(target, samples, internalformat, width, height);
+  }
+
   void SwapBuffers() {
     gles2::SwapBuffers& c = GetCmdSpace<gles2::SwapBuffers>();
     c.Init();
diff --git a/gpu/command_buffer/client/gles2_implementation_autogen.h b/gpu/command_buffer/client/gles2_implementation_autogen.h
index 8dd914b..872bcf63 100644
--- a/gpu/command_buffer/client/gles2_implementation_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_autogen.h
@@ -770,6 +770,35 @@ void Viewport(GLint x, GLint y, GLsizei width, GLsizei height) {
   helper_->Viewport(x, y, width, height);
 }
 
+void BlitFramebufferEXT(
+    GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0,
+    GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
+  helper_->BlitFramebufferEXT(
+      srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
+}
+
+void RenderbufferStorageMultisampleEXT(
+    GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
+    GLsizei height) {
+  if (samples < 0) {
+    SetGLError(
+        GL_INVALID_VALUE, "glRenderbufferStorageMultisampleEXT: samples < 0");
+    return;
+  }
+  if (width < 0) {
+    SetGLError(
+        GL_INVALID_VALUE, "glRenderbufferStorageMultisampleEXT: width < 0");
+    return;
+  }
+  if (height < 0) {
+    SetGLError(
+        GL_INVALID_VALUE, "glRenderbufferStorageMultisampleEXT: height < 0");
+    return;
+  }
+  helper_->RenderbufferStorageMultisampleEXT(
+      target, samples, internalformat, width, height);
+}
+
 void SwapBuffers();
 
 GLuint GetMaxValueInBuffer(