OpenHarmony/third_party_mesa3d
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added GL_EXT_texture_env_add extension

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This commit is contained in:
Brian Paul
1999-11-12 02:07:56 +00:00
parent a087e348ab
commit b95d252c34
3 changed files with 26 additions and 7 deletions
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13
include/GL/gl.h
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@@ -1,4 +1,4 @@
/* $Id: gl.h,v 1.20 1999/11/11 17:48:32 brianp Exp $ */
/* $Id: gl.h,v 1.21 1999/11/12 02:08:59 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -2308,6 +2308,17 @@ GLAPI void GLAPIENTRY glResizeBuffersMESA( void );
/*
* GL_EXT_texture_env_add
*/
#ifndef GL_EXT_texture_env_add
#define GL_EXT_texture_env_add 1
/* No new tokens or functions */
#endif /* GL_EXT_texture_env_add */
#if defined(__BEOS__) || defined(__QUICKDRAW__)

3
src/mesa/main/extensions.c
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@@ -1,4 +1,4 @@
/* $Id: extensions.c,v 1.12 1999/11/12 02:05:46 brianp Exp $ */
/* $Id: extensions.c,v 1.13 1999/11/12 02:07:56 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -74,6 +74,7 @@ static struct { int enabled; const char *name; } default_extensions[] = {
{ DEFAULT_ON, "GL_EXT_compiled_vertex_array" },
{ DEFAULT_OFF, "GL_EXT_vertex_array_set" },
{ DEFAULT_ON, "GL_EXT_clip_volume_hint" },
{ DEFAULT_ON, "GL_EXT_texture_env_add" },
};

17
src/mesa/main/texstate.c
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@@ -1,4 +1,4 @@
/* $Id: texstate.c,v 1.5 1999/11/11 01:22:28 brianp Exp $ */
/* $Id: texstate.c,v 1.6 1999/11/12 02:07:56 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -31,6 +31,7 @@
#include "glheader.h"
#include "context.h"
#include "enums.h"
#include "extensions.h"
#include "macros.h"
#include "matrix.h"
#include "texobj.h"
@@ -84,10 +85,16 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
if (pname==GL_TEXTURE_ENV_MODE) {
GLenum mode = (GLenum) (GLint) *param;
switch (mode) {
case GL_MODULATE:
case GL_BLEND:
case GL_DECAL:
case GL_REPLACE:
case GL_ADD:
if (!gl_extension_is_enabled(ctx, "GL_EXT_texture_env_add")) {
gl_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)");
return;
}
/* FALL-THROUGH */
case GL_MODULATE:
case GL_BLEND:
case GL_DECAL:
case GL_REPLACE:
/* A small optimization for drivers */
if (texUnit->EnvMode == mode)
return;