From f5d3027c0a03e26fe90efc067766c996dea05948 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 23 Jan 2009 17:29:26 -0700 Subject: mesa: initial changes for GL_NV_texture_env_combine4 --- src/mesa/main/extensions.c | 1 + src/mesa/main/mtypes.h | 18 ++++++++---------- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 43c9d4a788..42de564547 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -155,6 +155,7 @@ static const struct { { OFF, "GL_NV_fragment_program", F(NV_fragment_program) }, { ON, "GL_NV_light_max_exponent", F(NV_light_max_exponent) }, { OFF, "GL_NV_point_sprite", F(NV_point_sprite) }, + { OFF, "GL_NV_texture_env_combine4", F(NV_texture_env_combine4) }, { OFF, "GL_NV_texture_rectangle", F(NV_texture_rectangle) }, { ON, "GL_NV_texgen_reflection", F(NV_texgen_reflection) }, { OFF, "GL_NV_vertex_program", F(NV_vertex_program) }, diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 39c988f3c8..b09c5910f8 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1468,23 +1468,20 @@ struct gl_texture_object /** * Texture combine environment state. - * - * \todo - * If GL_NV_texture_env_combine4 is ever supported, the arrays in this - * structure will need to be expanded for 4 elements. + * Up to four combiner sources are possible with GL_NV_texture_env_combine4. */ struct gl_tex_env_combine_state { GLenum ModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ GLenum ModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum SourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum SourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum OperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ - GLenum OperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ + GLenum SourceRGB[4]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum SourceA[4]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum OperandRGB[4]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ + GLenum OperandA[4]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ GLuint ScaleShiftRGB; /**< 0, 1 or 2 */ GLuint ScaleShiftA; /**< 0, 1 or 2 */ - GLuint _NumArgsRGB; /**< Number of inputs used for the combine mode. */ - GLuint _NumArgsA; /**< Number of inputs used for the combine mode. */ + GLuint _NumArgsRGB; /**< Number of inputs used for the RGB combiner */ + GLuint _NumArgsA; /**< Number of inputs used for the A combiner */ }; @@ -2649,6 +2646,7 @@ struct gl_extensions GLboolean NV_light_max_exponent; GLboolean NV_point_sprite; GLboolean NV_texgen_reflection; + GLboolean NV_texture_env_combine4; GLboolean NV_texture_rectangle; GLboolean NV_vertex_program; GLboolean NV_vertex_program1_1; -- cgit v1.2.3