1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
31 #include "simple_list.h"
35 #include "texformat.h"
37 #include "swrast/swrast.h"
41 #include "intel_ioctl.h"
43 #include "i830_context.h"
49 i830TexEnv(GLcontext
* ctx
, GLenum target
,
50 GLenum pname
, const GLfloat
* param
)
54 case GL_TEXTURE_ENV_COLOR
:
55 case GL_TEXTURE_ENV_MODE
:
57 case GL_COMBINE_ALPHA
:
61 case GL_SOURCE0_ALPHA
:
62 case GL_SOURCE1_ALPHA
:
63 case GL_SOURCE2_ALPHA
:
67 case GL_OPERAND0_ALPHA
:
68 case GL_OPERAND1_ALPHA
:
69 case GL_OPERAND2_ALPHA
:
74 case GL_TEXTURE_LOD_BIAS
:{
75 struct i830_context
*i830
= i830_context(ctx
);
76 GLuint unit
= ctx
->Texture
.CurrentUnit
;
77 int b
= (int) ((*param
) * 16.0);
82 I830_STATECHANGE(i830
, I830_UPLOAD_TEX(unit
));
83 i830
->lodbias_tm0s3
[unit
] =
84 ((b
<< TM0S3_LOD_BIAS_SHIFT
) & TM0S3_LOD_BIAS_MASK
);
97 i830InitTextureFuncs(struct dd_function_table
*functions
)
99 functions
->TexEnv
= i830TexEnv
;