2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
24 #include "util/u_format.h"
25 #include "util/u_format_s3tc.h"
26 #include "util/u_memory.h"
28 #include "r300_context.h"
29 #include "r300_texture.h"
30 #include "r300_screen_buffer.h"
31 #include "r300_winsys.h"
33 /* Return the identifier behind whom the brave coders responsible for this
34 * amalgamation of code, sweat, and duct tape, routinely obscure their names.
36 * ...I should have just put "Corbin Simpson", but I'm not that cool.
38 * (Or egotistical. Yet.) */
39 static const char* r300_get_vendor(struct pipe_screen
* pscreen
)
41 return "X.Org R300 Project";
44 static const char* chip_families
[] = {
72 static const char* r300_get_name(struct pipe_screen
* pscreen
)
74 struct r300_screen
* r300screen
= r300_screen(pscreen
);
76 return chip_families
[r300screen
->caps
.family
];
79 static int r300_get_param(struct pipe_screen
* pscreen
, enum pipe_cap param
)
81 struct r300_screen
* r300screen
= r300_screen(pscreen
);
82 boolean is_r400
= r300screen
->caps
.is_r400
;
83 boolean is_r500
= r300screen
->caps
.is_r500
;
85 /* XXX extended shader capabilities of r400 unimplemented */
89 /* Supported features (boolean caps). */
90 case PIPE_CAP_NPOT_TEXTURES
:
91 case PIPE_CAP_TWO_SIDED_STENCIL
:
93 /* I'll be frank. This is a lie.
95 * We don't truly support GLSL on any of this driver's chipsets.
96 * To be fair, no chipset supports the full GLSL specification
97 * to the best of our knowledge, but some of the less esoteric
98 * features are still missing here.
100 * Rather than cripple ourselves intentionally, I'm going to set
101 * this flag, and as Gallium's interface continues to change, I
102 * hope that this single monolithic GLSL enable can slowly get
103 * split down into many different pieces and the state tracker
104 * will handle fallbacks transparently, like it should.
108 case PIPE_CAP_ANISOTROPIC_FILTER
:
109 case PIPE_CAP_POINT_SPRITE
:
110 case PIPE_CAP_OCCLUSION_QUERY
:
111 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
112 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
113 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
114 case PIPE_CAP_BLEND_EQUATION_SEPARATE
:
117 /* Unsupported features (boolean caps). */
118 case PIPE_CAP_TIMER_QUERY
:
119 case PIPE_CAP_DUAL_SOURCE_BLEND
:
120 case PIPE_CAP_TGSI_CONT_SUPPORTED
:
121 case PIPE_CAP_INDEP_BLEND_ENABLE
:
122 case PIPE_CAP_INDEP_BLEND_FUNC
:
126 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
127 case PIPE_CAP_MAX_COMBINED_SAMPLERS
:
128 return r300screen
->caps
.num_tex_units
;
129 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
131 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
132 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
133 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
134 /* 13 == 4096, 12 == 2048 */
135 return is_r500
? 13 : 12;
137 /* Render targets. */
138 case PIPE_CAP_MAX_RENDER_TARGETS
:
141 /* General shader limits and features. */
143 return is_r500
? 1 : 0;
144 case PIPE_CAP_MAX_CONST_BUFFERS
:
146 case PIPE_CAP_MAX_CONST_BUFFER_SIZE
:
149 /* Fragment coordinate conventions. */
150 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT
:
151 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER
:
153 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT
:
154 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER
:
157 /* Fragment shader limits. */
158 case PIPE_CAP_MAX_FS_INSTRUCTIONS
:
159 return is_r500
|| is_r400
? 512 : 96;
160 case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS
:
161 return is_r500
|| is_r400
? 512 : 64;
162 case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS
:
163 return is_r500
|| is_r400
? 512 : 32;
164 case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS
:
165 return is_r500
? 511 : 4;
166 case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH
:
167 return is_r500
? 64 : 0; /* Actually unlimited on r500. */
168 case PIPE_CAP_MAX_FS_INPUTS
:
169 /* 2 colors + 8 texcoords are always supported
170 * (minus fog and wpos).
172 * R500 has the ability to turn 3rd and 4th color into
173 * additional texcoords but there is no two-sided color
174 * selection then. However the facing bit can be used instead. */
176 case PIPE_CAP_MAX_FS_CONSTS
:
177 return is_r500
? 256 : 32;
178 case PIPE_CAP_MAX_FS_TEMPS
:
179 return is_r500
? 128 : is_r400
? 64 : 32;
180 case PIPE_CAP_MAX_FS_ADDRS
:
182 case PIPE_CAP_MAX_FS_PREDS
:
183 return is_r500
? 1 : 0;
185 /* Vertex shader limits. */
186 case PIPE_CAP_MAX_VS_INSTRUCTIONS
:
187 case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS
:
188 return is_r500
? 1024 : 256;
189 case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS
:
190 case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS
:
192 case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH
:
193 return is_r500
? 4 : 0; /* For loops; not sure about conditionals. */
194 case PIPE_CAP_MAX_VS_INPUTS
:
196 case PIPE_CAP_MAX_VS_CONSTS
:
198 case PIPE_CAP_MAX_VS_TEMPS
:
200 case PIPE_CAP_MAX_VS_ADDRS
:
201 return 1; /* XXX guessed */
202 case PIPE_CAP_MAX_VS_PREDS
:
203 return is_r500
? 4 : 0; /* XXX guessed. */
206 fprintf(stderr
, "r300: Implementation error: Bad param %d\n",
212 static float r300_get_paramf(struct pipe_screen
* pscreen
, enum pipe_cap param
)
214 struct r300_screen
* r300screen
= r300_screen(pscreen
);
217 case PIPE_CAP_MAX_LINE_WIDTH
:
218 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
219 case PIPE_CAP_MAX_POINT_WIDTH
:
220 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
221 /* The maximum dimensions of the colorbuffer are our practical
222 * rendering limits. 2048 pixels should be enough for anybody. */
223 if (r300screen
->caps
.is_r500
) {
225 } else if (r300screen
->caps
.is_r400
) {
230 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
232 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
235 fprintf(stderr
, "r300: Implementation error: Bad paramf %d\n",
241 static boolean
r300_is_format_supported(struct pipe_screen
* screen
,
242 enum pipe_format format
,
243 enum pipe_texture_target target
,
244 unsigned sample_count
,
249 boolean is_r500
= r300_screen(screen
)->caps
.is_r500
;
250 boolean is_r400
= r300_screen(screen
)->caps
.is_r400
;
251 boolean is_z24
= format
== PIPE_FORMAT_X8Z24_UNORM
||
252 format
== PIPE_FORMAT_S8_USCALED_Z24_UNORM
;
253 boolean is_color2101010
= format
== PIPE_FORMAT_R10G10B10A2_UNORM
||
254 format
== PIPE_FORMAT_R10G10B10X2_SNORM
||
255 format
== PIPE_FORMAT_B10G10R10A2_UNORM
||
256 format
== PIPE_FORMAT_R10SG10SB10SA2U_NORM
;
257 boolean is_ati1n
= format
== PIPE_FORMAT_RGTC1_UNORM
||
258 format
== PIPE_FORMAT_RGTC1_SNORM
;
259 boolean is_ati2n
= format
== PIPE_FORMAT_RGTC2_UNORM
||
260 format
== PIPE_FORMAT_RGTC2_SNORM
;
262 if (target
>= PIPE_MAX_TEXTURE_TYPES
) {
263 fprintf(stderr
, "r300: Implementation error: Received bogus texture "
264 "target %d in %s\n", target
, __FUNCTION__
);
268 if (sample_count
> 1)
271 /* Check sampler format support. */
272 if ((usage
& PIPE_BIND_SAMPLER_VIEW
) &&
273 /* Z24 cannot be sampled from on non-r5xx. */
274 (is_r500
|| !is_z24
) &&
275 /* ATI1N is r5xx-only. */
276 (is_r500
|| !is_ati1n
) &&
277 /* ATI2N is supported on r4xx-r5xx. */
278 (is_r400
|| is_r500
|| !is_ati2n
) &&
279 r300_is_sampler_format_supported(format
)) {
280 retval
|= PIPE_BIND_SAMPLER_VIEW
;
283 /* Check colorbuffer format support. */
284 if ((usage
& (PIPE_BIND_RENDER_TARGET
|
285 PIPE_BIND_DISPLAY_TARGET
|
287 PIPE_BIND_SHARED
)) &&
288 /* 2101010 cannot be rendered to on non-r5xx. */
289 (is_r500
|| !is_color2101010
) &&
290 r300_is_colorbuffer_format_supported(format
)) {
292 (PIPE_BIND_RENDER_TARGET
|
293 PIPE_BIND_DISPLAY_TARGET
|
298 /* Check depth-stencil format support. */
299 if (usage
& PIPE_BIND_DEPTH_STENCIL
&&
300 r300_is_zs_format_supported(format
)) {
301 retval
|= PIPE_BIND_DEPTH_STENCIL
;
304 return retval
== usage
;
307 static void r300_destroy_screen(struct pipe_screen
* pscreen
)
309 struct r300_screen
* r300screen
= r300_screen(pscreen
);
310 struct r300_winsys_screen
*rws
= r300_winsys_screen(pscreen
);
318 static void r300_fence_reference(struct pipe_screen
*screen
,
319 struct pipe_fence_handle
**ptr
,
320 struct pipe_fence_handle
*fence
)
324 static int r300_fence_signalled(struct pipe_screen
*screen
,
325 struct pipe_fence_handle
*fence
,
331 static int r300_fence_finish(struct pipe_screen
*screen
,
332 struct pipe_fence_handle
*fence
,
338 struct pipe_screen
* r300_create_screen(struct r300_winsys_screen
*rws
)
340 struct r300_screen
*r300screen
= CALLOC_STRUCT(r300_screen
);
347 r300screen
->caps
.pci_id
= rws
->get_value(rws
, R300_VID_PCI_ID
);
348 r300screen
->caps
.num_frag_pipes
= rws
->get_value(rws
, R300_VID_GB_PIPES
);
349 r300screen
->caps
.num_z_pipes
= rws
->get_value(rws
, R300_VID_Z_PIPES
);
351 r300_init_debug(r300screen
);
352 r300_parse_chipset(&r300screen
->caps
);
354 r300screen
->rws
= rws
;
355 r300screen
->screen
.winsys
= (struct pipe_winsys
*)rws
;
356 r300screen
->screen
.destroy
= r300_destroy_screen
;
357 r300screen
->screen
.get_name
= r300_get_name
;
358 r300screen
->screen
.get_vendor
= r300_get_vendor
;
359 r300screen
->screen
.get_param
= r300_get_param
;
360 r300screen
->screen
.get_paramf
= r300_get_paramf
;
361 r300screen
->screen
.is_format_supported
= r300_is_format_supported
;
362 r300screen
->screen
.context_create
= r300_create_context
;
364 r300screen
->screen
.fence_reference
= r300_fence_reference
;
365 r300screen
->screen
.fence_signalled
= r300_fence_signalled
;
366 r300screen
->screen
.fence_finish
= r300_fence_finish
;
368 r300_init_screen_resource_functions(r300screen
);
370 util_format_s3tc_init();
372 return &r300screen
->screen
;
375 struct r300_winsys_screen
*
376 r300_winsys_screen(struct pipe_screen
*screen
)
378 return r300_screen(screen
)->rws
;