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 "r300_screen.h"
25 /* Return the identifier behind whom the brave coders responsible for this
26 * amalgamation of code, sweat, and duct tape, routinely obscure their names.
28 * ...I should have just put "Corbin Simpson", but I'm not that cool.
30 * (Or egotistical. Yet.) */
31 static const char* r300_get_vendor(struct pipe_screen
* pscreen
)
33 return "X.Org R300 Project";
36 static const char* chip_families
[] = {
64 static const char* r300_get_name(struct pipe_screen
* pscreen
)
66 struct r300_screen
* r300screen
= r300_screen(pscreen
);
68 return chip_families
[r300screen
->caps
->family
];
71 static int r300_get_param(struct pipe_screen
* pscreen
, int param
)
73 struct r300_screen
* r300screen
= r300_screen(pscreen
);
76 /* XXX cases marked "IN THEORY" are possible on the hardware,
77 * but haven't been implemented yet. */
78 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
79 /* XXX I'm told this goes up to 16 */
81 case PIPE_CAP_NPOT_TEXTURES
:
84 case PIPE_CAP_TWO_SIDED_STENCIL
:
85 if (r300screen
->caps
->is_r500
) {
97 case PIPE_CAP_ANISOTROPIC_FILTER
:
100 case PIPE_CAP_POINT_SPRITE
:
103 case PIPE_CAP_MAX_RENDER_TARGETS
:
105 case PIPE_CAP_OCCLUSION_QUERY
:
108 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
111 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
112 if (r300screen
->caps
->is_r500
) {
113 /* 13 == 4096x4096 */
116 /* 12 == 2048x2048 */
119 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
120 /* So, technically, the limit is the same as above, but some math
121 * shows why this is silly. Assuming RGBA, 4cpp, we can see that
122 * 4096*4096*4096 = 64.0 GiB exactly, so it's not exactly
123 * practical. However, if at some point a game really wants this,
124 * then we can remove or raise this limit. */
125 if (r300screen
->caps
->is_r500
) {
126 /* 9 == 256x256x256 */
129 /* 8 == 128*128*128 */
132 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
133 if (r300screen
->caps
->is_r500
) {
134 /* 13 == 4096x4096 */
137 /* 12 == 2048x2048 */
140 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
142 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
144 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
145 /* XXX guessing (what a terrible guess) */
148 debug_printf("r300: Implementation error: Bad param %d\n",
154 static float r300_get_paramf(struct pipe_screen
* pscreen
, int param
)
157 case PIPE_CAP_MAX_LINE_WIDTH
:
158 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
159 /* XXX this is the biggest thing that will fit in that register.
160 * Perhaps the actual rendering limits are less? */
162 case PIPE_CAP_MAX_POINT_WIDTH
:
163 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
164 /* XXX this is the biggest thing that will fit in that register.
165 * Perhaps the actual rendering limits are less? */
167 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
169 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
172 debug_printf("r300: Implementation error: Bad paramf %d\n",
178 static boolean
check_tex_2d_format(enum pipe_format format
, boolean is_r500
)
182 case PIPE_FORMAT_A4R4G4B4_UNORM
:
183 case PIPE_FORMAT_R5G6B5_UNORM
:
184 case PIPE_FORMAT_A1R5G5B5_UNORM
:
185 case PIPE_FORMAT_A8R8G8B8_UNORM
:
186 /* Colorbuffer or texture */
187 case PIPE_FORMAT_I8_UNORM
:
189 case PIPE_FORMAT_Z16_UNORM
:
190 /* Z buffer with stencil */
191 case PIPE_FORMAT_Z24S8_UNORM
:
194 /* XXX These don't even exist
195 case PIPE_FORMAT_A32R32G32B32:
196 case PIPE_FORMAT_A16R16G16B16: */
197 /* XXX Insert YUV422 packed VYUY and YVYU here */
198 /* XXX What the deuce is UV88? (r3xx accel page 14)
199 debug_printf("r300: Warning: Got unimplemented format: %s in %s\n",
200 pf_name(format), __FUNCTION__);
203 /* XXX Supported yet unimplemented r5xx formats: */
204 /* XXX Again, what is UV1010 this time? (r5xx accel page 148) */
205 /* XXX Even more that don't exist
206 case PIPE_FORMAT_A10R10G10B10_UNORM:
207 case PIPE_FORMAT_A2R10G10B10_UNORM:
208 case PIPE_FORMAT_I10_UNORM:
210 "r300: Warning: Got unimplemented r500 format: %s in %s\n",
211 pf_name(format), __FUNCTION__);
215 debug_printf("r300: Warning: Got unsupported format: %s in %s\n",
216 pf_name(format
), __FUNCTION__
);
223 /* XXX moar targets */
224 static boolean
r300_is_format_supported(struct pipe_screen
* pscreen
,
225 enum pipe_format format
,
226 enum pipe_texture_target target
,
231 case PIPE_TEXTURE_2D
:
232 return check_tex_2d_format(format
,
233 r300_screen(pscreen
)->caps
->is_r500
);
235 debug_printf("r300: Warning: Got unknown format target: %d\n",
243 static struct pipe_transfer
*
244 r300_get_tex_transfer(struct pipe_screen
*screen
,
245 struct pipe_texture
*texture
,
246 unsigned face
, unsigned level
, unsigned zslice
,
247 enum pipe_transfer_usage usage
, unsigned x
, unsigned y
,
248 unsigned w
, unsigned h
)
250 struct r300_texture
*tex
= (struct r300_texture
*)texture
;
251 struct r300_transfer
*trans
;
252 unsigned offset
; /* in bytes */
254 /* XXX Add support for these things */
255 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
256 debug_printf("PIPE_TEXTURE_CUBE is not yet supported.\n");
257 /* offset = tex->image_offset[level][face]; */
259 else if (texture
->target
== PIPE_TEXTURE_3D
) {
260 debug_printf("PIPE_TEXTURE_3D is not yet supported.\n");
261 /* offset = tex->image_offset[level][zslice]; */
264 offset
= tex
->offset
[level
];
269 trans
= CALLOC_STRUCT(r300_transfer
);
271 pipe_texture_reference(&trans
->transfer
.texture
, texture
);
272 trans
->transfer
.format
= trans
->transfer
.format
;
273 trans
->transfer
.width
= w
;
274 trans
->transfer
.height
= h
;
275 trans
->transfer
.block
= texture
->block
;
276 trans
->transfer
.nblocksx
= texture
->nblocksx
[level
];
277 trans
->transfer
.nblocksy
= texture
->nblocksy
[level
];
278 trans
->transfer
.stride
= tex
->stride
;
279 trans
->transfer
.usage
= usage
;
280 trans
->offset
= offset
;
282 return &trans
->transfer
;
286 r300_tex_transfer_destroy(struct pipe_transfer
*trans
)
288 pipe_texture_reference(&trans
->texture
, NULL
);
292 static void* r300_transfer_map(struct pipe_screen
* screen
,
293 struct pipe_transfer
* transfer
)
295 struct r300_texture
* tex
= (struct r300_texture
*)transfer
->texture
;
299 if (transfer
->usage
!= PIPE_TRANSFER_WRITE
) {
300 flags
|= PIPE_BUFFER_USAGE_CPU_READ
;
302 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
303 flags
|= PIPE_BUFFER_USAGE_CPU_WRITE
;
306 map
= pipe_buffer_map(screen
, tex
->buffer
, flags
);
312 return map
+ r300_transfer(transfer
)->offset
+
313 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
314 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
317 static void r300_transfer_unmap(struct pipe_screen
* screen
,
318 struct pipe_transfer
* transfer
)
320 struct r300_texture
* tex
= (struct r300_texture
*)transfer
->texture
;
321 pipe_buffer_unmap(screen
, tex
->buffer
);
324 static void r300_destroy_screen(struct pipe_screen
* pscreen
)
326 struct r300_screen
* r300screen
= r300_screen(pscreen
);
328 FREE(r300screen
->caps
);
332 struct pipe_screen
* r300_create_screen(struct r300_winsys
* r300_winsys
)
334 struct r300_screen
* r300screen
= CALLOC_STRUCT(r300_screen
);
335 struct r300_capabilities
* caps
= CALLOC_STRUCT(r300_capabilities
);
337 if (!r300screen
|| !caps
)
340 caps
->pci_id
= r300_winsys
->pci_id
;
341 caps
->num_frag_pipes
= r300_winsys
->gb_pipes
;
343 r300_parse_chipset(caps
);
345 r300screen
->caps
= caps
;
346 r300screen
->screen
.winsys
= (struct pipe_winsys
*)r300_winsys
;
347 r300screen
->screen
.destroy
= r300_destroy_screen
;
348 r300screen
->screen
.get_name
= r300_get_name
;
349 r300screen
->screen
.get_vendor
= r300_get_vendor
;
350 r300screen
->screen
.get_param
= r300_get_param
;
351 r300screen
->screen
.get_paramf
= r300_get_paramf
;
352 r300screen
->screen
.is_format_supported
= r300_is_format_supported
;
353 r300screen
->screen
.get_tex_transfer
= r300_get_tex_transfer
;
354 r300screen
->screen
.tex_transfer_destroy
= r300_tex_transfer_destroy
;
355 r300screen
->screen
.transfer_map
= r300_transfer_map
;
356 r300screen
->screen
.transfer_unmap
= r300_transfer_unmap
;
358 r300_init_screen_texture_functions(&r300screen
->screen
);
359 u_simple_screen_init(&r300screen
->screen
);
361 return &r300screen
->screen
;