Minimizes texture state changes
TRAC #12203
Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch

Author:    Shannon Woods

git-svn-id: https://angleproject.googlecode.com/svn/trunk@267 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/Program.h b/src/libGLESv2/Program.h
index a1ddd98..11aa2ca 100644
--- a/src/libGLESv2/Program.h
+++ b/src/libGLESv2/Program.h
@@ -66,8 +66,12 @@
     GLuint getAttributeLocation(const char *name);
     int getSemanticIndex(int attributeIndex);
 
+    void dirtyAllSamplers();
+
     GLint getSamplerMapping(unsigned int samplerIndex);
     SamplerType getSamplerType(unsigned int samplerIndex);
+    bool isSamplerDirty(unsigned int samplerIndex) const;
+    void setSamplerDirty(unsigned int samplerIndex, bool dirty);
 
     GLint getUniformLocation(const char *name);
     bool setUniform1fv(GLint location, GLsizei count, const GLfloat *v);
@@ -185,6 +189,7 @@
         bool active;
         GLint logicalTextureUnit;
         SamplerType type;
+        bool dirty;
     };
 
     Sampler mSamplers[MAX_TEXTURE_IMAGE_UNITS];