Adds support for the GL_ANGLE_texture_usage and GL_EXT_texture_storage

third_party/khronos/GLES2/gl2ext.h

 #ifndef __gl2ext_h_
 #define __gl2ext_h_
 
 /* $Revision: 15049 $ on $Date:: 2011-07-06 17:28:16 -0700 #$ */
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /*
@@ skipping 194 matching lines @@
 #define GL_RENDERBUFFER_SAMPLES_ANGLE                           0x8CAB
 #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_ANGLE             0x8D56
 #define GL_MAX_SAMPLES_ANGLE                                    0x8D57
 #endif
 
 /* GL_ANGLE_pack_reverse_row_order */
 #ifndef GL_ANGLE_pack_reverse_row_order
 #define GL_PACK_REVERSE_ROW_ORDER_ANGLE                         0x93A4
 #endif
 
+/* GL_ANGLE_texture_usage */
+#ifndef GL_ANGLE_texture_usage
+#define GL_TEXTURE_USAGE_ANGLE                                  0x93A2
+#define GL_FRAMEBUFFER_ATTACHMENT_ANGLE                         0x93A3
+#endif
+
 /*------------------------------------------------------------------------*
  * APPLE extension tokens
  *------------------------------------------------------------------------*/
 
 /* GL_APPLE_rgb_422 */
 #ifndef GL_APPLE_rgb_422
 #define GL_RGB_422_APPLE                                        0x8A1F
 #define GL_UNSIGNED_SHORT_8_8_APPLE                             0x85BA
 #define GL_UNSIGNED_SHORT_8_8_REV_APPLE                         0x85BB
 #endif
@@ skipping 83 matching lines @@
 #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT                        0x83F1
 #endif
 
 /* GL_EXT_unpack_subimage */
 #ifndef GL_EXT_unpack_subimage
 #define GL_UNPACK_ROW_LENGTH                                    0x0CF2
 #define GL_UNPACK_SKIP_ROWS                                     0x0CF3
 #define GL_UNPACK_SKIP_PIXELS                                   0x0CF4
 #endif
 
+/* GL_EXT_texture_storage */
+#ifndef GL_EXT_texture_storage
+#define GL_TEXTURE_IMMUTABLE_FORMAT_EXT                         0x912F
+#define GL_ALPHA8_EXT                                           0x803C
+#define GL_LUMINANCE8_EXT                                       0x8040
+#define GL_LUMINANCE8_ALPHA8_EXT                                0x8045
+/* OES_texture_float dependent internal formats */
+#define GL_RGBA32F_EXT                                          0x8814  /* reuse tokens from ARB_texture_float */
+#define GL_RGB32F_EXT                                           0x8815
+#define GL_ALPHA32F_EXT                                         0x8816
+#define GL_LUMINANCE32F_EXT                                     0x8818
+#define GL_LUMINANCE_ALPHA32F_EXT                               0x8819
+/* OES_texture_half_float dependent internal formats */
+#define GL_RGBA16F_EXT                                          0x881A /* reuse tokens from ARB_texture_float */
+#define GL_RGB16F_EXT                                           0x881B
+#define GL_ALPHA16F_EXT                                         0x881C
+#define GL_LUMINANCE16F_EXT                                     0x881E
+#define GL_LUMINANCE_ALPHA16F_EXT                               0x881F
+/* EXT_texture_type_2_10_10_10_REV dependent internal formats */
+#define GL_RGB10_A2_EXT                                         0x8059  /* reuse tokens from EXT_texture */
+#define GL_RGB10_EXT                                            0x8052
+/* EXT_texture_format_BGRA8888 dependent internal formats */
+#define GL_BGRA8_EXT                                            0x93A1
+#endif
+
 /*------------------------------------------------------------------------*
  * DMP extension tokens
  *------------------------------------------------------------------------*/
 
 /* GL_DMP_shader_binary */
 #ifndef GL_DMP_shader_binary
 #define GL_SHADER_BINARY_DMP                                    0x9250
 #endif
 
 /*------------------------------------------------------------------------*
@@ skipping 465 matching lines @@
 GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleANGLE (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
 #endif
 typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEANGLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
 #endif
 
 /* GL_ANGLE_pack_reverse_row_order */
 #ifndef GL_ANGLE_pack_reverse_row_order
 #define GL_ANGLE_pack_reverse_row_order 1
 #endif
 
+/* GL_ANGLE_texture_usage */
+#ifndef GL_ANGLE_texture_usage
+#define GL_ANGLE_texture_usage 1
+#endif
+
 /*------------------------------------------------------------------------*
  * APPLE extension functions
  *------------------------------------------------------------------------*/
 
 /* GL_APPLE_rgb_422 */
 #ifndef GL_APPLE_rgb_422
 #define GL_APPLE_rgb_422 1
 #endif
 
 /* GL_APPLE_framebuffer_multisample */
@@ skipping 87 matching lines @@
 /* GL_EXT_texture_compression_dxt1 */
 #ifndef GL_EXT_texture_compression_dxt1
 #define GL_EXT_texture_compression_dxt1 1
 #endif
 
 /* GL_EXT_unpack_subimage */
 #ifndef GL_EXT_unpack_subimage
 #define GL_EXT_unpack_subimage 1
 #endif
 
+/* GL_EXT_texture_storage */
+#ifndef GL_EXT_texture_storage
+#define GL_EXT_texture_storage 1
+#ifdef GL_GLEXT_PROTOTYPES
+GL_APICALL void GL_APIENTRY glTexStorage2DEXT (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+#endif /* GL_GLEXT_PROTOTYPES */
+typedef void (GL_APIENTRYP PFNGLTEXSTORAGE2DEXT) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+#endif
+
 /*------------------------------------------------------------------------*
  * DMP extension functions
  *------------------------------------------------------------------------*/
 
 /* GL_DMP_shader_binary */
 #ifndef GL_DMP_shader_binary
 #define GL_DMP_shader_binary 1
 #endif
 
 /*------------------------------------------------------------------------*
@@ skipping 534 matching lines @@
 #else
 typedef void (GL_APIENTRYP PFNGLTEXIMAGEIOSURFACE2DCHROMIUM) (GLenum target, GLsizei width, GLsizei height, GLuint ioSurfaceId, GLuint plane);
 #endif
 #endif
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* __gl2ext_h_ */