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 **************************************************************************/
28 #include "main/mtypes.h"
29 #include "main/enums.h"
30 #include "main/texformat.h"
32 #include "intel_mipmap_tree.h"
33 #include "intel_tex.h"
35 #include "i830_context.h"
41 translate_texture_format(GLuint mesa_format
, GLuint internal_format
)
43 switch (mesa_format
) {
45 return MAPSURF_8BIT
| MT_8BIT_L8
;
47 return MAPSURF_8BIT
| MT_8BIT_I8
;
49 return MAPSURF_8BIT
| MT_8BIT_I8
; /* Kludge! */
50 case MESA_FORMAT_AL88
:
51 return MAPSURF_16BIT
| MT_16BIT_AY88
;
52 case MESA_FORMAT_RGB565
:
53 return MAPSURF_16BIT
| MT_16BIT_RGB565
;
54 case MESA_FORMAT_ARGB1555
:
55 return MAPSURF_16BIT
| MT_16BIT_ARGB1555
;
56 case MESA_FORMAT_ARGB4444
:
57 return MAPSURF_16BIT
| MT_16BIT_ARGB4444
;
58 case MESA_FORMAT_ARGB8888
:
59 if (internal_format
== GL_RGB
)
60 return MAPSURF_32BIT
| MT_32BIT_XRGB8888
;
62 return MAPSURF_32BIT
| MT_32BIT_ARGB8888
;
63 case MESA_FORMAT_YCBCR_REV
:
64 return (MAPSURF_422
| MT_422_YCRCB_NORMAL
);
65 case MESA_FORMAT_YCBCR
:
66 return (MAPSURF_422
| MT_422_YCRCB_SWAPY
);
67 case MESA_FORMAT_RGB_FXT1
:
68 case MESA_FORMAT_RGBA_FXT1
:
69 return (MAPSURF_COMPRESSED
| MT_COMPRESS_FXT1
);
70 case MESA_FORMAT_RGBA_DXT1
:
71 case MESA_FORMAT_RGB_DXT1
:
72 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT1
);
73 case MESA_FORMAT_RGBA_DXT3
:
74 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT2_3
);
75 case MESA_FORMAT_RGBA_DXT5
:
76 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT4_5
);
78 fprintf(stderr
, "%s: bad image format %x\n", __FUNCTION__
, mesa_format
);
87 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
88 * Intel drivers for "other operating systems" implement GL_CLAMP as
89 * GL_CLAMP_TO_EDGE, so the same is done here.
92 translate_wrap_mode(GLenum wrap
)
96 return TEXCOORDMODE_WRAP
;
98 case GL_CLAMP_TO_EDGE
:
99 return TEXCOORDMODE_CLAMP
; /* not really correct */
100 case GL_CLAMP_TO_BORDER
:
101 return TEXCOORDMODE_CLAMP_BORDER
;
102 case GL_MIRRORED_REPEAT
:
103 return TEXCOORDMODE_MIRROR
;
105 return TEXCOORDMODE_WRAP
;
110 /* Recalculate all state from scratch. Perhaps not the most
111 * efficient, but this has gotten complex enough that we need
112 * something which is understandable and reliable.
115 i830_update_tex_unit(struct intel_context
*intel
, GLuint unit
, GLuint ss3
)
117 GLcontext
*ctx
= &intel
->ctx
;
118 struct i830_context
*i830
= i830_context(ctx
);
119 struct gl_texture_unit
*tUnit
= &ctx
->Texture
.Unit
[unit
];
120 struct gl_texture_object
*tObj
= tUnit
->_Current
;
121 struct intel_texture_object
*intelObj
= intel_texture_object(tObj
);
122 struct gl_texture_image
*firstImage
;
123 GLuint
*state
= i830
->state
.Tex
[unit
], format
, pitch
;
127 memset(state
, 0, sizeof(state
));
129 /*We need to refcount these. */
131 if (i830
->state
.tex_buffer
[unit
] != NULL
) {
132 dri_bo_unreference(i830
->state
.tex_buffer
[unit
]);
133 i830
->state
.tex_buffer
[unit
] = NULL
;
136 if (!intelObj
->imageOverride
&& !intel_finalize_mipmap_tree(intel
, unit
))
139 /* Get first image here, since intelObj->firstLevel will get set in
140 * the intel_finalize_mipmap_tree() call above.
142 firstImage
= tObj
->Image
[0][intelObj
->firstLevel
];
144 if (intelObj
->imageOverride
) {
145 i830
->state
.tex_buffer
[unit
] = NULL
;
146 i830
->state
.tex_offset
[unit
] = intelObj
->textureOffset
;
148 switch (intelObj
->depthOverride
) {
150 format
= MAPSURF_32BIT
| MT_32BIT_ARGB8888
;
154 format
= MAPSURF_32BIT
| MT_32BIT_XRGB8888
;
157 format
= MAPSURF_16BIT
| MT_16BIT_RGB565
;
161 pitch
= intelObj
->pitchOverride
;
163 dri_bo_reference(intelObj
->mt
->region
->buffer
);
164 i830
->state
.tex_buffer
[unit
] = intelObj
->mt
->region
->buffer
;
165 i830
->state
.tex_offset
[unit
] = intel_miptree_image_offset(intelObj
->mt
,
169 format
= translate_texture_format(firstImage
->TexFormat
->MesaFormat
,
170 firstImage
->InternalFormat
);
171 pitch
= intelObj
->mt
->pitch
* intelObj
->mt
->cpp
;
174 state
[I830_TEXREG_TM0LI
] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2
|
175 (LOAD_TEXTURE_MAP0
<< unit
) | 4);
177 state
[I830_TEXREG_TM0S1
] =
178 (((firstImage
->Height
- 1) << TM0S1_HEIGHT_SHIFT
) |
179 ((firstImage
->Width
- 1) << TM0S1_WIDTH_SHIFT
) | format
);
181 if (intelObj
->mt
->region
->tiling
!= I915_TILING_NONE
) {
182 state
[I830_TEXREG_TM0S1
] |= TM0S1_TILED_SURFACE
;
183 if (intelObj
->mt
->region
->tiling
== I915_TILING_Y
)
184 state
[I830_TEXREG_TM0S1
] |= TM0S1_TILE_WALK
;
187 state
[I830_TEXREG_TM0S2
] =
188 ((((pitch
/ 4) - 1) << TM0S2_PITCH_SHIFT
) | TM0S2_CUBE_FACE_ENA_MASK
);
191 if (tObj
->Target
== GL_TEXTURE_CUBE_MAP
)
192 state
[I830_TEXREG_CUBE
] = (_3DSTATE_MAP_CUBE
| MAP_UNIT(unit
) |
197 CUBE_NEGZ_ENABLE
| CUBE_POSZ_ENABLE
);
199 state
[I830_TEXREG_CUBE
] = (_3DSTATE_MAP_CUBE
| MAP_UNIT(unit
));
206 GLuint minFilt
, mipFilt
, magFilt
;
208 switch (tObj
->MinFilter
) {
210 minFilt
= FILTER_NEAREST
;
211 mipFilt
= MIPFILTER_NONE
;
214 minFilt
= FILTER_LINEAR
;
215 mipFilt
= MIPFILTER_NONE
;
217 case GL_NEAREST_MIPMAP_NEAREST
:
218 minFilt
= FILTER_NEAREST
;
219 mipFilt
= MIPFILTER_NEAREST
;
221 case GL_LINEAR_MIPMAP_NEAREST
:
222 minFilt
= FILTER_LINEAR
;
223 mipFilt
= MIPFILTER_NEAREST
;
225 case GL_NEAREST_MIPMAP_LINEAR
:
226 minFilt
= FILTER_NEAREST
;
227 mipFilt
= MIPFILTER_LINEAR
;
229 case GL_LINEAR_MIPMAP_LINEAR
:
230 minFilt
= FILTER_LINEAR
;
231 mipFilt
= MIPFILTER_LINEAR
;
237 if (tObj
->MaxAnisotropy
> 1.0) {
238 minFilt
= FILTER_ANISOTROPIC
;
239 magFilt
= FILTER_ANISOTROPIC
;
242 switch (tObj
->MagFilter
) {
244 magFilt
= FILTER_NEAREST
;
247 magFilt
= FILTER_LINEAR
;
254 lodbias
= (int) ((tUnit
->LodBias
+ tObj
->LodBias
) * 16.0);
260 state
[I830_TEXREG_TM0S3
] = ((lodbias
<< TM0S3_LOD_BIAS_SHIFT
) &
261 TM0S3_LOD_BIAS_MASK
);
265 if (firstImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR
||
266 firstImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR_REV
)
267 state
[I830_TEXREG_TM0S3
] |= SS2_COLORSPACE_CONVERSION
;
270 state
[I830_TEXREG_TM0S3
] |= ((intelObj
->lastLevel
-
271 intelObj
->firstLevel
) *
272 4) << TM0S3_MIN_MIP_SHIFT
;
274 state
[I830_TEXREG_TM0S3
] |= ((minFilt
<< TM0S3_MIN_FILTER_SHIFT
) |
275 (mipFilt
<< TM0S3_MIP_FILTER_SHIFT
) |
276 (magFilt
<< TM0S3_MAG_FILTER_SHIFT
));
280 GLenum ws
= tObj
->WrapS
;
281 GLenum wt
= tObj
->WrapT
;
284 /* 3D textures not available on i830
286 if (tObj
->Target
== GL_TEXTURE_3D
)
289 state
[I830_TEXREG_MCS
] = (_3DSTATE_MAP_COORD_SET_CMD
|
291 ENABLE_TEXCOORD_PARAMS
|
294 TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt
))
295 | ENABLE_ADDR_U_CNTL
|
296 TEXCOORD_ADDR_U_MODE(translate_wrap_mode
300 /* convert border color from float to ubyte */
301 CLAMPED_FLOAT_TO_UBYTE(border
[0], tObj
->BorderColor
[0]);
302 CLAMPED_FLOAT_TO_UBYTE(border
[1], tObj
->BorderColor
[1]);
303 CLAMPED_FLOAT_TO_UBYTE(border
[2], tObj
->BorderColor
[2]);
304 CLAMPED_FLOAT_TO_UBYTE(border
[3], tObj
->BorderColor
[3]);
306 state
[I830_TEXREG_TM0S4
] = INTEL_PACKCOLOR8888(border
[0],
312 I830_ACTIVESTATE(i830
, I830_UPLOAD_TEX(unit
), GL_TRUE
);
313 /* memcmp was already disabled, but definitely won't work as the
314 * region might now change and that wouldn't be detected:
316 I830_STATECHANGE(i830
, I830_UPLOAD_TEX(unit
));
324 i830UpdateTextureState(struct intel_context
*intel
)
326 struct i830_context
*i830
= i830_context(&intel
->ctx
);
327 GLboolean ok
= GL_TRUE
;
330 for (i
= 0; i
< I830_TEX_UNITS
&& ok
; i
++) {
331 switch (intel
->ctx
.Texture
.Unit
[i
]._ReallyEnabled
) {
334 case TEXTURE_CUBE_BIT
:
335 ok
= i830_update_tex_unit(intel
, i
, TEXCOORDS_ARE_NORMAL
);
337 case TEXTURE_RECT_BIT
:
338 ok
= i830_update_tex_unit(intel
, i
, TEXCOORDS_ARE_IN_TEXELUNITS
);
341 struct i830_context
*i830
= i830_context(&intel
->ctx
);
342 if (i830
->state
.active
& I830_UPLOAD_TEX(i
))
343 I830_ACTIVESTATE(i830
, I830_UPLOAD_TEX(i
), GL_FALSE
);
345 if (i830
->state
.tex_buffer
[i
] != NULL
) {
346 dri_bo_unreference(i830
->state
.tex_buffer
[i
]);
347 i830
->state
.tex_buffer
[i
] = NULL
;
358 FALLBACK(intel
, I830_FALLBACK_TEXTURE
, !ok
);
361 i830EmitTextureBlend(i830
);