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
) {
91 if (r300screen
->caps
->is_r500
) {
96 case PIPE_CAP_ANISOTROPIC_FILTER
:
98 case PIPE_CAP_POINT_SPRITE
:
101 case PIPE_CAP_MAX_RENDER_TARGETS
:
103 case PIPE_CAP_OCCLUSION_QUERY
:
105 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
107 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
108 if (r300screen
->caps
->is_r500
) {
109 /* 13 == 4096x4096 */
112 /* 12 == 2048x2048 */
115 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
116 /* So, technically, the limit is the same as above, but some math
117 * shows why this is silly. Assuming RGBA, 4cpp, we can see that
118 * 4096*4096*4096 = 64.0 GiB exactly, so it's not exactly
119 * practical. However, if at some point a game really wants this,
120 * then we can remove or raise this limit. */
121 if (r300screen
->caps
->is_r500
) {
122 /* 9 == 256x256x256 */
125 /* 8 == 128*128*128 */
128 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
129 if (r300screen
->caps
->is_r500
) {
130 /* 13 == 4096x4096 */
133 /* 12 == 2048x2048 */
136 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
138 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
140 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
141 /* XXX guessing (what a terrible guess) */
143 case PIPE_CAP_TGSI_CONT_SUPPORTED
:
146 case PIPE_CAP_BLEND_EQUATION_SEPARATE
:
149 debug_printf("r300: Implementation error: Bad param %d\n",
155 static float r300_get_paramf(struct pipe_screen
* pscreen
, int param
)
157 struct r300_screen
* r300screen
= r300_screen(pscreen
);
160 case PIPE_CAP_MAX_LINE_WIDTH
:
161 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
162 case PIPE_CAP_MAX_POINT_WIDTH
:
163 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
164 /* The maximum dimensions of the colorbuffer are our practical
165 * rendering limits. 2048 pixels should be enough for anybody. */
166 if (r300screen
->caps
->is_r500
) {
171 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
173 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
176 debug_printf("r300: Implementation error: Bad paramf %d\n",
182 static boolean
check_tex_2d_format(enum pipe_format format
, uint32_t usage
,
186 /* Supported formats. */
188 case PIPE_FORMAT_A4R4G4B4_UNORM
:
189 case PIPE_FORMAT_R5G6B5_UNORM
:
190 case PIPE_FORMAT_A1R5G5B5_UNORM
:
192 (PIPE_TEXTURE_USAGE_RENDER_TARGET
|
193 PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
194 PIPE_TEXTURE_USAGE_PRIMARY
);
197 case PIPE_FORMAT_A8R8G8B8_SRGB
:
198 case PIPE_FORMAT_R8G8B8A8_SRGB
:
199 case PIPE_FORMAT_DXT1_RGB
:
200 case PIPE_FORMAT_DXT1_RGBA
:
201 case PIPE_FORMAT_DXT3_RGBA
:
202 case PIPE_FORMAT_DXT5_RGBA
:
203 case PIPE_FORMAT_YCBCR
:
204 return usage
& PIPE_TEXTURE_USAGE_SAMPLER
;
206 /* Colorbuffer or texture */
207 case PIPE_FORMAT_A8R8G8B8_UNORM
:
208 case PIPE_FORMAT_R8G8B8A8_UNORM
:
209 case PIPE_FORMAT_I8_UNORM
:
211 (PIPE_TEXTURE_USAGE_RENDER_TARGET
|
212 PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
213 PIPE_TEXTURE_USAGE_PRIMARY
|
214 PIPE_TEXTURE_USAGE_SAMPLER
);
217 case PIPE_FORMAT_Z16_UNORM
:
218 return usage
& PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
220 /* Z buffer with stencil or texture */
221 case PIPE_FORMAT_Z24S8_UNORM
:
223 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL
|
224 PIPE_TEXTURE_USAGE_SAMPLER
);
226 /* Definitely unsupported formats. */
227 /* Non-usable Z buffer/stencil formats. */
228 case PIPE_FORMAT_Z24X8_UNORM
:
229 case PIPE_FORMAT_S8Z24_UNORM
:
230 case PIPE_FORMAT_X8Z24_UNORM
:
231 debug_printf("r300: Note: Got unsupported format: %s in %s\n",
232 pf_name(format
), __FUNCTION__
);
235 /* XXX These don't even exist
236 case PIPE_FORMAT_A32R32G32B32:
237 case PIPE_FORMAT_A16R16G16B16: */
238 /* XXX Insert YUV422 packed VYUY and YVYU here */
239 /* XXX What the deuce is UV88? (r3xx accel page 14)
240 debug_printf("r300: Warning: Got unimplemented format: %s in %s\n",
241 pf_name(format), __FUNCTION__);
244 /* XXX Supported yet unimplemented r5xx formats: */
245 /* XXX Again, what is UV1010 this time? (r5xx accel page 148) */
246 /* XXX Even more that don't exist
247 case PIPE_FORMAT_A10R10G10B10_UNORM:
248 case PIPE_FORMAT_A2R10G10B10_UNORM:
249 case PIPE_FORMAT_I10_UNORM:
251 "r300: Warning: Got unimplemented r500 format: %s in %s\n",
252 pf_name(format), __FUNCTION__);
256 /* Unknown format... */
257 debug_printf("r300: Warning: Got unknown format: %s in %s\n",
258 pf_name(format
), __FUNCTION__
);
265 /* XXX moar targets */
266 static boolean
r300_is_format_supported(struct pipe_screen
* pscreen
,
267 enum pipe_format format
,
268 enum pipe_texture_target target
,
273 case PIPE_TEXTURE_2D
:
274 return check_tex_2d_format(format
, tex_usage
,
275 r300_screen(pscreen
)->caps
->is_r500
);
276 case PIPE_TEXTURE_1D
:
277 case PIPE_TEXTURE_3D
:
278 case PIPE_TEXTURE_CUBE
:
279 debug_printf("r300: Implementation error: Unsupported format "
280 "target: %d\n", target
);
283 debug_printf("r300: Fatal: This is not a format target: %d\n",
292 static struct pipe_transfer
*
293 r300_get_tex_transfer(struct pipe_screen
*screen
,
294 struct pipe_texture
*texture
,
295 unsigned face
, unsigned level
, unsigned zslice
,
296 enum pipe_transfer_usage usage
, unsigned x
, unsigned y
,
297 unsigned w
, unsigned h
)
299 struct r300_texture
*tex
= (struct r300_texture
*)texture
;
300 struct r300_transfer
*trans
;
301 unsigned offset
; /* in bytes */
303 /* XXX Add support for these things */
304 if (texture
->target
== PIPE_TEXTURE_CUBE
) {
305 debug_printf("PIPE_TEXTURE_CUBE is not yet supported.\n");
306 /* offset = tex->image_offset[level][face]; */
308 else if (texture
->target
== PIPE_TEXTURE_3D
) {
309 debug_printf("PIPE_TEXTURE_3D is not yet supported.\n");
310 /* offset = tex->image_offset[level][zslice]; */
313 offset
= tex
->offset
[level
];
318 trans
= CALLOC_STRUCT(r300_transfer
);
320 pipe_texture_reference(&trans
->transfer
.texture
, texture
);
321 trans
->transfer
.format
= texture
->format
;
322 trans
->transfer
.x
= x
;
323 trans
->transfer
.y
= y
;
324 trans
->transfer
.width
= w
;
325 trans
->transfer
.height
= h
;
326 trans
->transfer
.block
= texture
->block
;
327 trans
->transfer
.nblocksx
= texture
->nblocksx
[level
];
328 trans
->transfer
.nblocksy
= texture
->nblocksy
[level
];
329 trans
->transfer
.stride
= r300_texture_get_stride(tex
, level
);
330 trans
->transfer
.usage
= usage
;
331 trans
->offset
= offset
;
333 return &trans
->transfer
;
337 r300_tex_transfer_destroy(struct pipe_transfer
*trans
)
339 pipe_texture_reference(&trans
->texture
, NULL
);
343 static void* r300_transfer_map(struct pipe_screen
* screen
,
344 struct pipe_transfer
* transfer
)
346 struct r300_texture
* tex
= (struct r300_texture
*)transfer
->texture
;
350 if (transfer
->usage
!= PIPE_TRANSFER_WRITE
) {
351 flags
|= PIPE_BUFFER_USAGE_CPU_READ
;
353 if (transfer
->usage
!= PIPE_TRANSFER_READ
) {
354 flags
|= PIPE_BUFFER_USAGE_CPU_WRITE
;
357 map
= pipe_buffer_map(screen
, tex
->buffer
, flags
);
363 return map
+ r300_transfer(transfer
)->offset
+
364 transfer
->y
/ transfer
->block
.height
* transfer
->stride
+
365 transfer
->x
/ transfer
->block
.width
* transfer
->block
.size
;
368 static void r300_transfer_unmap(struct pipe_screen
* screen
,
369 struct pipe_transfer
* transfer
)
371 struct r300_texture
* tex
= (struct r300_texture
*)transfer
->texture
;
372 pipe_buffer_unmap(screen
, tex
->buffer
);
375 static void r300_destroy_screen(struct pipe_screen
* pscreen
)
377 struct r300_screen
* r300screen
= r300_screen(pscreen
);
379 FREE(r300screen
->caps
);
383 struct pipe_screen
* r300_create_screen(struct r300_winsys
* r300_winsys
)
385 struct r300_screen
* r300screen
= CALLOC_STRUCT(r300_screen
);
386 struct r300_capabilities
* caps
= CALLOC_STRUCT(r300_capabilities
);
388 if (!r300screen
|| !caps
)
391 caps
->pci_id
= r300_winsys
->pci_id
;
392 caps
->num_frag_pipes
= r300_winsys
->gb_pipes
;
394 r300_parse_chipset(caps
);
396 r300screen
->caps
= caps
;
397 r300screen
->screen
.winsys
= (struct pipe_winsys
*)r300_winsys
;
398 r300screen
->screen
.destroy
= r300_destroy_screen
;
399 r300screen
->screen
.get_name
= r300_get_name
;
400 r300screen
->screen
.get_vendor
= r300_get_vendor
;
401 r300screen
->screen
.get_param
= r300_get_param
;
402 r300screen
->screen
.get_paramf
= r300_get_paramf
;
403 r300screen
->screen
.is_format_supported
= r300_is_format_supported
;
404 r300screen
->screen
.get_tex_transfer
= r300_get_tex_transfer
;
405 r300screen
->screen
.tex_transfer_destroy
= r300_tex_transfer_destroy
;
406 r300screen
->screen
.transfer_map
= r300_transfer_map
;
407 r300screen
->screen
.transfer_unmap
= r300_transfer_unmap
;
409 r300_init_screen_texture_functions(&r300screen
->screen
);
410 u_simple_screen_init(&r300screen
->screen
);
412 return &r300screen
->screen
;