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/colormac.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 return MAPSURF_32BIT
| MT_32BIT_ARGB8888
;
60 case MESA_FORMAT_XRGB8888
:
61 return MAPSURF_32BIT
| MT_32BIT_XRGB8888
;
62 case MESA_FORMAT_YCBCR_REV
:
63 return (MAPSURF_422
| MT_422_YCRCB_NORMAL
);
64 case MESA_FORMAT_YCBCR
:
65 return (MAPSURF_422
| MT_422_YCRCB_SWAPY
);
66 case MESA_FORMAT_RGB_FXT1
:
67 case MESA_FORMAT_RGBA_FXT1
:
68 return (MAPSURF_COMPRESSED
| MT_COMPRESS_FXT1
);
69 case MESA_FORMAT_RGBA_DXT1
:
70 case MESA_FORMAT_RGB_DXT1
:
71 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT1
);
72 case MESA_FORMAT_RGBA_DXT3
:
73 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT2_3
);
74 case MESA_FORMAT_RGBA_DXT5
:
75 return (MAPSURF_COMPRESSED
| MT_COMPRESS_DXT4_5
);
77 fprintf(stderr
, "%s: bad image format %x\n", __FUNCTION__
, mesa_format
);
86 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
87 * Intel drivers for "other operating systems" implement GL_CLAMP as
88 * GL_CLAMP_TO_EDGE, so the same is done here.
91 translate_wrap_mode(GLenum wrap
)
95 return TEXCOORDMODE_WRAP
;
97 case GL_CLAMP_TO_EDGE
:
98 return TEXCOORDMODE_CLAMP
; /* not really correct */
99 case GL_CLAMP_TO_BORDER
:
100 return TEXCOORDMODE_CLAMP_BORDER
;
101 case GL_MIRRORED_REPEAT
:
102 return TEXCOORDMODE_MIRROR
;
104 return TEXCOORDMODE_WRAP
;
109 /* Recalculate all state from scratch. Perhaps not the most
110 * efficient, but this has gotten complex enough that we need
111 * something which is understandable and reliable.
114 i830_update_tex_unit(struct intel_context
*intel
, GLuint unit
, GLuint ss3
)
116 GLcontext
*ctx
= &intel
->ctx
;
117 struct i830_context
*i830
= i830_context(ctx
);
118 struct gl_texture_unit
*tUnit
= &ctx
->Texture
.Unit
[unit
];
119 struct gl_texture_object
*tObj
= tUnit
->_Current
;
120 struct intel_texture_object
*intelObj
= intel_texture_object(tObj
);
121 struct gl_texture_image
*firstImage
;
122 GLuint
*state
= i830
->state
.Tex
[unit
], format
, pitch
;
126 memset(state
, 0, sizeof(state
));
128 /*We need to refcount these. */
130 if (i830
->state
.tex_buffer
[unit
] != NULL
) {
131 dri_bo_unreference(i830
->state
.tex_buffer
[unit
]);
132 i830
->state
.tex_buffer
[unit
] = NULL
;
135 if (!intelObj
->imageOverride
&& !intel_finalize_mipmap_tree(intel
, unit
))
138 /* Get first image here, since intelObj->firstLevel will get set in
139 * the intel_finalize_mipmap_tree() call above.
141 firstImage
= tObj
->Image
[0][intelObj
->firstLevel
];
143 if (intelObj
->imageOverride
) {
144 i830
->state
.tex_buffer
[unit
] = NULL
;
145 i830
->state
.tex_offset
[unit
] = intelObj
->textureOffset
;
147 switch (intelObj
->depthOverride
) {
149 format
= MAPSURF_32BIT
| MT_32BIT_ARGB8888
;
153 format
= MAPSURF_32BIT
| MT_32BIT_XRGB8888
;
156 format
= MAPSURF_16BIT
| MT_16BIT_RGB565
;
160 pitch
= intelObj
->pitchOverride
;
164 intel_miptree_get_image_offset(intelObj
->mt
, intelObj
->firstLevel
, 0, 0,
167 dri_bo_reference(intelObj
->mt
->region
->buffer
);
168 i830
->state
.tex_buffer
[unit
] = intelObj
->mt
->region
->buffer
;
169 /* XXX: This calculation is probably broken for tiled images with
170 * a non-page-aligned offset.
172 i830
->state
.tex_offset
[unit
] = (dst_x
+ dst_y
* intelObj
->mt
->pitch
) *
175 format
= translate_texture_format(firstImage
->TexFormat
,
176 firstImage
->InternalFormat
);
177 pitch
= intelObj
->mt
->pitch
* intelObj
->mt
->cpp
;
180 state
[I830_TEXREG_TM0LI
] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2
|
181 (LOAD_TEXTURE_MAP0
<< unit
) | 4);
183 state
[I830_TEXREG_TM0S1
] =
184 (((firstImage
->Height
- 1) << TM0S1_HEIGHT_SHIFT
) |
185 ((firstImage
->Width
- 1) << TM0S1_WIDTH_SHIFT
) | format
);
187 if (intelObj
->mt
->region
->tiling
!= I915_TILING_NONE
) {
188 state
[I830_TEXREG_TM0S1
] |= TM0S1_TILED_SURFACE
;
189 if (intelObj
->mt
->region
->tiling
== I915_TILING_Y
)
190 state
[I830_TEXREG_TM0S1
] |= TM0S1_TILE_WALK
;
193 state
[I830_TEXREG_TM0S2
] =
194 ((((pitch
/ 4) - 1) << TM0S2_PITCH_SHIFT
) | TM0S2_CUBE_FACE_ENA_MASK
);
197 if (tObj
->Target
== GL_TEXTURE_CUBE_MAP
)
198 state
[I830_TEXREG_CUBE
] = (_3DSTATE_MAP_CUBE
| MAP_UNIT(unit
) |
203 CUBE_NEGZ_ENABLE
| CUBE_POSZ_ENABLE
);
205 state
[I830_TEXREG_CUBE
] = (_3DSTATE_MAP_CUBE
| MAP_UNIT(unit
));
212 GLuint minFilt
, mipFilt
, magFilt
;
214 switch (tObj
->MinFilter
) {
216 minFilt
= FILTER_NEAREST
;
217 mipFilt
= MIPFILTER_NONE
;
220 minFilt
= FILTER_LINEAR
;
221 mipFilt
= MIPFILTER_NONE
;
223 case GL_NEAREST_MIPMAP_NEAREST
:
224 minFilt
= FILTER_NEAREST
;
225 mipFilt
= MIPFILTER_NEAREST
;
227 case GL_LINEAR_MIPMAP_NEAREST
:
228 minFilt
= FILTER_LINEAR
;
229 mipFilt
= MIPFILTER_NEAREST
;
231 case GL_NEAREST_MIPMAP_LINEAR
:
232 minFilt
= FILTER_NEAREST
;
233 mipFilt
= MIPFILTER_LINEAR
;
235 case GL_LINEAR_MIPMAP_LINEAR
:
236 minFilt
= FILTER_LINEAR
;
237 mipFilt
= MIPFILTER_LINEAR
;
243 if (tObj
->MaxAnisotropy
> 1.0) {
244 minFilt
= FILTER_ANISOTROPIC
;
245 magFilt
= FILTER_ANISOTROPIC
;
248 switch (tObj
->MagFilter
) {
250 magFilt
= FILTER_NEAREST
;
253 magFilt
= FILTER_LINEAR
;
260 lodbias
= (int) ((tUnit
->LodBias
+ tObj
->LodBias
) * 16.0);
266 state
[I830_TEXREG_TM0S3
] = ((lodbias
<< TM0S3_LOD_BIAS_SHIFT
) &
267 TM0S3_LOD_BIAS_MASK
);
271 if (firstImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR
||
272 firstImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR_REV
)
273 state
[I830_TEXREG_TM0S3
] |= SS2_COLORSPACE_CONVERSION
;
276 state
[I830_TEXREG_TM0S3
] |= ((intelObj
->lastLevel
-
277 intelObj
->firstLevel
) *
278 4) << TM0S3_MIN_MIP_SHIFT
;
280 state
[I830_TEXREG_TM0S3
] |= ((minFilt
<< TM0S3_MIN_FILTER_SHIFT
) |
281 (mipFilt
<< TM0S3_MIP_FILTER_SHIFT
) |
282 (magFilt
<< TM0S3_MAG_FILTER_SHIFT
));
286 GLenum ws
= tObj
->WrapS
;
287 GLenum wt
= tObj
->WrapT
;
290 /* 3D textures not available on i830
292 if (tObj
->Target
== GL_TEXTURE_3D
)
295 state
[I830_TEXREG_MCS
] = (_3DSTATE_MAP_COORD_SET_CMD
|
297 ENABLE_TEXCOORD_PARAMS
|
300 TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt
))
301 | ENABLE_ADDR_U_CNTL
|
302 TEXCOORD_ADDR_U_MODE(translate_wrap_mode
306 /* convert border color from float to ubyte */
307 CLAMPED_FLOAT_TO_UBYTE(border
[0], tObj
->BorderColor
[0]);
308 CLAMPED_FLOAT_TO_UBYTE(border
[1], tObj
->BorderColor
[1]);
309 CLAMPED_FLOAT_TO_UBYTE(border
[2], tObj
->BorderColor
[2]);
310 CLAMPED_FLOAT_TO_UBYTE(border
[3], tObj
->BorderColor
[3]);
312 state
[I830_TEXREG_TM0S4
] = PACK_COLOR_8888(border
[3],
317 I830_ACTIVESTATE(i830
, I830_UPLOAD_TEX(unit
), GL_TRUE
);
318 /* memcmp was already disabled, but definitely won't work as the
319 * region might now change and that wouldn't be detected:
321 I830_STATECHANGE(i830
, I830_UPLOAD_TEX(unit
));
329 i830UpdateTextureState(struct intel_context
*intel
)
331 struct i830_context
*i830
= i830_context(&intel
->ctx
);
332 GLboolean ok
= GL_TRUE
;
335 for (i
= 0; i
< I830_TEX_UNITS
&& ok
; i
++) {
336 switch (intel
->ctx
.Texture
.Unit
[i
]._ReallyEnabled
) {
339 case TEXTURE_CUBE_BIT
:
340 ok
= i830_update_tex_unit(intel
, i
, TEXCOORDS_ARE_NORMAL
);
342 case TEXTURE_RECT_BIT
:
343 ok
= i830_update_tex_unit(intel
, i
, TEXCOORDS_ARE_IN_TEXELUNITS
);
346 struct i830_context
*i830
= i830_context(&intel
->ctx
);
347 if (i830
->state
.active
& I830_UPLOAD_TEX(i
))
348 I830_ACTIVESTATE(i830
, I830_UPLOAD_TEX(i
), GL_FALSE
);
350 if (i830
->state
.tex_buffer
[i
] != NULL
) {
351 dri_bo_unreference(i830
->state
.tex_buffer
[i
]);
352 i830
->state
.tex_buffer
[i
] = NULL
;
363 FALLBACK(intel
, I830_FALLBACK_TEXTURE
, !ok
);
366 i830EmitTextureBlend(i830
);