mesa: data structure updates for GL_EXT_provoking_vertex

src/mesa/main/context.c

@@ -592,6 +592,9 @@ _mesa_init_constants(GLcontext *ctx)
    /* GL_ATI_envmap_bumpmap */
    ctx->Const.SupportedBumpUnits = SUPPORTED_ATI_BUMP_UNITS;
 
+   /* GL_EXT_provoking_vertex */
+   ctx->Const.QuadsFollowProvokingVertexConvention = GL_TRUE;
+
    /* sanity checks */
    ASSERT(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits,
                                              ctx->Const.MaxTextureCoordUnits));

src/mesa/main/extensions.c

@@ -106,6 +106,7 @@ static const struct {
    { OFF, "GL_EXT_pixel_buffer_object",        F(EXT_pixel_buffer_object) },
    { OFF, "GL_EXT_point_parameters",           F(EXT_point_parameters) },
    { ON,  "GL_EXT_polygon_offset",             F(EXT_polygon_offset) },
+   { OFF, "GL_EXT_provoking_vertex",           F(EXT_provoking_vertex) },
    { ON,  "GL_EXT_rescale_normal",             F(EXT_rescale_normal) },
    { OFF, "GL_EXT_secondary_color",            F(EXT_secondary_color) },
    { ON,  "GL_EXT_separate_specular_color",    F(EXT_separate_specular_color) },

src/mesa/main/mtypes.h

@@ -770,6 +770,7 @@ struct gl_light_attrib
 
    GLboolean Enabled;			/**< Lighting enabled flag */
    GLenum ShadeModel;			/**< GL_FLAT or GL_SMOOTH */
+   GLenum ProvokingVertex;              /**< GL_EXT_provoking_vertex */
    GLenum ColorMaterialFace;		/**< GL_FRONT, BACK or FRONT_AND_BACK */
    GLenum ColorMaterialMode;		/**< GL_AMBIENT, GL_DIFFUSE, etc */
    GLbitfield ColorMaterialBitmask;	/**< bitmask formed from Face and Mode */
@@ -2421,6 +2422,9 @@ struct gl_constants
    GLuint MaxVarying;  /**< Number of float[4] varying parameters */
 
    GLbitfield SupportedBumpUnits; /**> units supporting GL_ATI_envmap_bumpmap as targets */
+
+   /**< GL_EXT_provoking_vertex */
+   GLboolean QuadsFollowProvokingVertexConvention;
 };
 
 
@@ -2489,6 +2493,7 @@ struct gl_extensions
    GLboolean EXT_pixel_buffer_object;
    GLboolean EXT_point_parameters;
    GLboolean EXT_polygon_offset;
+   GLboolean EXT_provoking_vertex;
    GLboolean EXT_rescale_normal;
    GLboolean EXT_shadow_funcs;
    GLboolean EXT_secondary_color;