2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #include "pipe/p_screen.h"
25 #include "util/u_format.h"
26 #include "util/u_math.h"
27 #include "util/u_memory.h"
29 #include "r300_context.h"
30 #include "r300_texture.h"
31 #include "r300_screen.h"
36 static const unsigned microblock_table
[5][3][2] = {
37 /*linear tiled square-tiled */
38 {{32, 1}, {8, 4}, {0, 0}}, /* 8 bits per pixel */
39 {{16, 1}, {8, 2}, {4, 4}}, /* 16 bits per pixel */
40 {{ 8, 1}, {4, 2}, {0, 0}}, /* 32 bits per pixel */
41 {{ 4, 1}, {0, 0}, {2, 2}}, /* 64 bits per pixel */
42 {{ 2, 1}, {0, 0}, {0, 0}} /* 128 bits per pixel */
45 static void r300_setup_texture_state(struct r300_texture
* tex
, boolean is_r500
)
47 struct r300_texture_state
* state
= &tex
->state
;
48 struct pipe_texture
*pt
= &tex
->tex
;
50 state
->format0
= R300_TX_WIDTH((pt
->width0
- 1) & 0x7ff) |
51 R300_TX_HEIGHT((pt
->height0
- 1) & 0x7ff);
54 /* rectangles love this */
55 state
->format0
|= R300_TX_PITCH_EN
;
56 state
->format2
= (tex
->pitch
[0] - 1) & 0x1fff;
58 /* power of two textures (3D, mipmaps, and no pitch) */
59 state
->format0
|= R300_TX_DEPTH(util_logbase2(pt
->depth0
) & 0xf);
62 state
->format1
= r300_translate_texformat(pt
->format
);
63 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
64 state
->format1
|= R300_TX_FORMAT_CUBIC_MAP
;
66 if (pt
->target
== PIPE_TEXTURE_3D
) {
67 state
->format1
|= R300_TX_FORMAT_3D
;
70 /* large textures on r500 */
73 if (pt
->width0
> 2048) {
74 state
->format2
|= R500_TXWIDTH_BIT11
;
76 if (pt
->height0
> 2048) {
77 state
->format2
|= R500_TXHEIGHT_BIT11
;
80 assert(is_r500
|| (pt
->width0
<= 2048 && pt
->height0
<= 2048));
82 debug_printf("r300: Set texture state (%dx%d, %d levels)\n",
83 pt
->width0
, pt
->height0
, pt
->last_level
);
86 unsigned r300_texture_get_offset(struct r300_texture
* tex
, unsigned level
,
87 unsigned zslice
, unsigned face
)
89 unsigned offset
= tex
->offset
[level
];
91 switch (tex
->tex
.target
) {
94 return offset
+ zslice
* tex
->layer_size
[level
];
96 case PIPE_TEXTURE_CUBE
:
98 return offset
+ face
* tex
->layer_size
[level
];
101 assert(zslice
== 0 && face
== 0);
107 * Return the width (dim==TILE_WIDTH) or height (dim==TILE_HEIGHT) of one tile
108 * of the given texture.
110 static unsigned r300_texture_get_tile_size(struct r300_texture
* tex
, int dim
)
112 unsigned pixsize
, tile_size
;
114 pixsize
= util_format_get_blocksize(tex
->tex
.format
);
115 tile_size
= microblock_table
[util_logbase2(pixsize
)][tex
->microtile
][dim
] *
116 (tex
->macrotile
== R300_BUFFER_TILED
? 8 : 1);
123 * Return the stride, in bytes, of the texture images of the given texture
124 * at the given level.
126 unsigned r300_texture_get_stride(struct r300_texture
* tex
, unsigned level
)
128 unsigned tile_width
, width
;
130 if (tex
->stride_override
)
131 return tex
->stride_override
;
133 /* Check the level. */
134 if (level
> tex
->tex
.last_level
) {
135 debug_printf("%s: level (%u) > last_level (%u)\n", __FUNCTION__
,
136 level
, tex
->tex
.last_level
);
140 tile_width
= r300_texture_get_tile_size(tex
, TILE_WIDTH
);
141 width
= align(u_minify(tex
->tex
.width0
, level
), tile_width
);
143 /* Should already be aligned except for S3TC. */
144 return align(util_format_get_stride(tex
->tex
.format
, width
), 32);
147 static unsigned r300_texture_get_nblocksy(struct r300_texture
* tex
,
150 unsigned height
, tile_height
;
152 tile_height
= r300_texture_get_tile_size(tex
, TILE_HEIGHT
);
153 height
= align(u_minify(tex
->tex
.height0
, level
), tile_height
);
155 return util_format_get_nblocksy(tex
->tex
.format
, height
);
158 static void r300_setup_miptree(struct r300_texture
* tex
)
160 struct pipe_texture
* base
= &tex
->tex
;
161 unsigned stride
, size
, layer_size
, nblocksy
, i
;
163 debug_printf("r300: Making miptree for texture, format %s\n", pf_name(base
->format
));
165 for (i
= 0; i
<= base
->last_level
; i
++) {
166 stride
= r300_texture_get_stride(tex
, i
);
167 nblocksy
= r300_texture_get_nblocksy(tex
, i
);
168 layer_size
= stride
* nblocksy
;
170 if (base
->target
== PIPE_TEXTURE_CUBE
)
171 size
= layer_size
* 6;
173 size
= layer_size
* u_minify(base
->depth0
, i
);
175 tex
->offset
[i
] = align(tex
->size
, 32);
176 tex
->size
= tex
->offset
[i
] + size
;
177 tex
->layer_size
[i
] = layer_size
;
178 tex
->pitch
[i
] = stride
/ util_format_get_blocksize(base
->format
);
180 debug_printf("r300: Texture miptree: Level %d "
181 "(%dx%dx%d px, pitch %d bytes) %d bytes total\n",
182 i
, u_minify(base
->width0
, i
), u_minify(base
->height0
, i
),
183 u_minify(base
->depth0
, i
), stride
, tex
->size
);
187 static void r300_setup_flags(struct r300_texture
* tex
)
189 tex
->is_npot
= !util_is_power_of_two(tex
->tex
.width0
) ||
190 !util_is_power_of_two(tex
->tex
.height0
);
193 /* Create a new texture. */
194 static struct pipe_texture
*
195 r300_texture_create(struct pipe_screen
* screen
,
196 const struct pipe_texture
* template)
198 struct r300_texture
* tex
= CALLOC_STRUCT(r300_texture
);
204 tex
->tex
= *template;
205 pipe_reference_init(&tex
->tex
.reference
, 1);
206 tex
->tex
.screen
= screen
;
208 r300_setup_flags(tex
);
209 r300_setup_miptree(tex
);
210 r300_setup_texture_state(tex
, r300_screen(screen
)->caps
->is_r500
);
212 tex
->buffer
= screen
->buffer_create(screen
, 2048,
213 PIPE_BUFFER_USAGE_PIXEL
,
221 return (struct pipe_texture
*)tex
;
224 static void r300_texture_destroy(struct pipe_texture
* texture
)
226 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
228 pipe_buffer_reference(&tex
->buffer
, NULL
);
233 static struct pipe_surface
* r300_get_tex_surface(struct pipe_screen
* screen
,
234 struct pipe_texture
* texture
,
240 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
241 struct pipe_surface
* surface
= CALLOC_STRUCT(pipe_surface
);
244 offset
= r300_texture_get_offset(tex
, level
, zslice
, face
);
247 pipe_reference_init(&surface
->reference
, 1);
248 pipe_texture_reference(&surface
->texture
, texture
);
249 surface
->format
= texture
->format
;
250 surface
->width
= u_minify(texture
->width0
, level
);
251 surface
->height
= u_minify(texture
->height0
, level
);
252 surface
->offset
= offset
;
253 surface
->usage
= flags
;
254 surface
->zslice
= zslice
;
255 surface
->texture
= texture
;
256 surface
->face
= face
;
257 surface
->level
= level
;
263 static void r300_tex_surface_destroy(struct pipe_surface
* s
)
265 pipe_texture_reference(&s
->texture
, NULL
);
269 static struct pipe_texture
*
270 r300_texture_blanket(struct pipe_screen
* screen
,
271 const struct pipe_texture
* base
,
272 const unsigned* stride
,
273 struct pipe_buffer
* buffer
)
275 struct r300_texture
* tex
;
277 /* Support only 2D textures without mipmaps */
278 if (base
->target
!= PIPE_TEXTURE_2D
||
280 base
->last_level
!= 0) {
284 tex
= CALLOC_STRUCT(r300_texture
);
290 pipe_reference_init(&tex
->tex
.reference
, 1);
291 tex
->tex
.screen
= screen
;
293 tex
->stride_override
= *stride
;
294 tex
->pitch
[0] = *stride
/ util_format_get_blocksize(base
->format
);
296 r300_setup_flags(tex
);
297 r300_setup_texture_state(tex
, r300_screen(screen
)->caps
->is_r500
);
299 pipe_buffer_reference(&tex
->buffer
, buffer
);
301 return (struct pipe_texture
*)tex
;
304 static struct pipe_video_surface
*
305 r300_video_surface_create(struct pipe_screen
*screen
,
306 enum pipe_video_chroma_format chroma_format
,
307 unsigned width
, unsigned height
)
309 struct r300_video_surface
*r300_vsfc
;
310 struct pipe_texture
template;
313 assert(width
&& height
);
315 r300_vsfc
= CALLOC_STRUCT(r300_video_surface
);
319 pipe_reference_init(&r300_vsfc
->base
.reference
, 1);
320 r300_vsfc
->base
.screen
= screen
;
321 r300_vsfc
->base
.chroma_format
= chroma_format
;
322 r300_vsfc
->base
.width
= width
;
323 r300_vsfc
->base
.height
= height
;
325 memset(&template, 0, sizeof(struct pipe_texture
));
326 template.target
= PIPE_TEXTURE_2D
;
327 template.format
= PIPE_FORMAT_X8R8G8B8_UNORM
;
328 template.last_level
= 0;
329 template.width0
= util_next_power_of_two(width
);
330 template.height0
= util_next_power_of_two(height
);
332 template.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
|
333 PIPE_TEXTURE_USAGE_RENDER_TARGET
;
335 r300_vsfc
->tex
= screen
->texture_create(screen
, &template);
342 return &r300_vsfc
->base
;
345 static void r300_video_surface_destroy(struct pipe_video_surface
*vsfc
)
347 struct r300_video_surface
*r300_vsfc
= r300_video_surface(vsfc
);
348 pipe_texture_reference(&r300_vsfc
->tex
, NULL
);
352 void r300_init_screen_texture_functions(struct pipe_screen
* screen
)
354 screen
->texture_create
= r300_texture_create
;
355 screen
->texture_destroy
= r300_texture_destroy
;
356 screen
->get_tex_surface
= r300_get_tex_surface
;
357 screen
->tex_surface_destroy
= r300_tex_surface_destroy
;
358 screen
->texture_blanket
= r300_texture_blanket
;
360 screen
->video_surface_create
= r300_video_surface_create
;
361 screen
->video_surface_destroy
= r300_video_surface_destroy
;
364 boolean
r300_get_texture_buffer(struct pipe_texture
* texture
,
365 struct pipe_buffer
** buffer
,
368 struct r300_texture
* tex
= (struct r300_texture
*)texture
;
373 pipe_buffer_reference(buffer
, tex
->buffer
);
376 *stride
= r300_texture_get_stride(tex
, 0);