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Implemented GL_SGIX_shadow and GL_SGIX_shadow_texture.

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Added some const keywords in the s/w texturing code.
This commit is contained in:
Brian Paul
2001-02-20 16:42:25 +00:00
parent 0c75c4c417
commit c499ce31ba
11 changed files with 169 additions and 98 deletions
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32
src/mesa/main/texstate.c
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@@ -1,4 +1,4 @@
/* $Id: texstate.c,v 1.32 2001/02/17 18:41:01 brianp Exp $ */
/* $Id: texstate.c,v 1.33 2001/02/20 16:42:25 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -784,7 +784,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
GLenum op = (GLenum) params[0];
if (op == GL_TEXTURE_LEQUAL_R_SGIX ||
op == GL_TEXTURE_GEQUAL_R_SGIX) {
texObj->CompareFlag = (GLenum) op;
texObj->CompareOperator = op;
}
else {
gl_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)");
@@ -795,6 +795,15 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
return;
}
break;
case GL_SHADOW_AMBIENT_SGIX:
if (ctx->Extensions.SGIX_shadow_ambient) {
UNCLAMPED_FLOAT_TO_CHAN(texObj->ShadowAmbient, params[0]);
}
else {
gl_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)");
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glTexParameter(pname)" );
return;
@@ -1064,6 +1073,15 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
return;
}
break;
case GL_SHADOW_AMBIENT_SGIX:
if (ctx->Extensions.SGIX_shadow_ambient) {
*params = CHAN_TO_FLOAT(obj->ShadowAmbient);
}
else {
gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)");
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" );
}
@@ -1156,6 +1174,16 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
return;
}
break;
case GL_SHADOW_AMBIENT_SGIX:
if (ctx->Extensions.SGIX_shadow_ambient) {
/* XXX range? */
*params = CHAN_TO_FLOAT(obj->ShadowAmbient);
}
else {
gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)");
return;
}
break;
default:
gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" );
}