commit d303ef9a9961a9da9f80a7c4366ecc96aae18316
author alokp@chromium.org <alokp@chromium.org@736b8ea6-26fd-11df-bfd4-992fa37f6226> Thu Sep 09 17:30:15 2010 +0000
committer alokp@chromium.org <alokp@chromium.org@736b8ea6-26fd-11df-bfd4-992fa37f6226> Thu Sep 09 17:30:15 2010 +0000
tree eb5ecfd7685c7562e4d7cbc8a0a6f73ad64b270a
parent 8815d7f2964301987a72e7a3a431f5df059f3e37

ANGLE supports GL_OES_standard_derivatives now.
BUG=25
Review URL: http://codereview.appspot.com/2122048

git-svn-id: https://angleproject.googlecode.com/svn/trunk@416 736b8ea6-26fd-11df-bfd4-992fa37f6226

src/libGLESv2/Context.cpp

diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index 510a281..7b692a2 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -84,6 +84,7 @@
     mState.scissorTest = false;
     mState.dither = true;
     mState.generateMipmapHint = GL_DONT_CARE;
+    mState.fragmentShaderDerivativeHint = GL_DONT_CARE;
 
     mState.lineWidth = 1.0f;
 
@@ -664,6 +665,14 @@
     mState.generateMipmapHint = hint;
 }
 
+void Context::setFragmentShaderDerivativeHint(GLenum hint)
+{
+    mState.fragmentShaderDerivativeHint = hint;
+    // TODO: Propagate the hint to shader translator so we can write
+    // ddx, ddx_coarse, or ddx_fine depending on the hint.
+    // Ignore for now. It is valid for implementations to ignore hint.
+}
+
 void Context::setViewportParams(GLint x, GLint y, GLsizei width, GLsizei height)
 {
     mState.viewportX = x;
@@ -1212,6 +1221,7 @@
       case GL_PACK_ALIGNMENT:                   *params = mState.packAlignment;                 break;
       case GL_UNPACK_ALIGNMENT:                 *params = mState.unpackAlignment;               break;
       case GL_GENERATE_MIPMAP_HINT:             *params = mState.generateMipmapHint;            break;
+      case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES: *params = mState.fragmentShaderDerivativeHint; break;
       case GL_ACTIVE_TEXTURE:                   *params = (mState.activeSampler + GL_TEXTURE0); break;
       case GL_STENCIL_FUNC:                     *params = mState.stencilFunc;                   break;
       case GL_STENCIL_REF:                      *params = mState.stencilRef;                    break;
@@ -1445,6 +1455,7 @@
       case GL_PACK_ALIGNMENT:
       case GL_UNPACK_ALIGNMENT:
       case GL_GENERATE_MIPMAP_HINT:
+      case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
       case GL_RED_BITS:
       case GL_GREEN_BITS:
       case GL_BLUE_BITS:
@@ -3115,6 +3126,7 @@
     mExtensionString += "GL_EXT_read_format_bgra ";
     mExtensionString += "GL_ANGLE_framebuffer_blit ";
     mExtensionString += "GL_OES_rgb8_rgba8 ";
+    mExtensionString += "GL_OES_standard_derivatives ";
 
     if (supportsEventQueries())
     {