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_memory.h"
27 #include "r300_context.h"
28 #include "r300_texture.h"
29 #include "r300_screen_buffer.h"
30 #include "r300_winsys.h"
32 /* Return the identifier behind whom the brave coders responsible for this
33 * amalgamation of code, sweat, and duct tape, routinely obscure their names.
35 * ...I should have just put "Corbin Simpson", but I'm not that cool.
37 * (Or egotistical. Yet.) */
38 static const char* r300_get_vendor(struct pipe_screen
* pscreen
)
40 return "X.Org R300 Project";
43 static const char* chip_families
[] = {
71 static const char* r300_get_name(struct pipe_screen
* pscreen
)
73 struct r300_screen
* r300screen
= r300_screen(pscreen
);
75 return chip_families
[r300screen
->caps
->family
];
78 static int r300_get_param(struct pipe_screen
* pscreen
, int param
)
80 struct r300_screen
* r300screen
= r300_screen(pscreen
);
83 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
84 case PIPE_CAP_MAX_COMBINED_SAMPLERS
:
85 /* XXX I'm told this goes up to 16 */
87 case PIPE_CAP_NPOT_TEXTURES
:
88 /* XXX enable now to get GL2.1 API,
89 * figure out later how to emulate this */
91 case PIPE_CAP_TWO_SIDED_STENCIL
:
92 if (r300screen
->caps
->is_r500
) {
98 /* I'll be frank. This is a lie.
100 * We don't truly support GLSL on any of this driver's chipsets.
101 * To be fair, no chipset supports the full GLSL specification
102 * to the best of our knowledge, but some of the less esoteric
103 * features are still missing here.
105 * Rather than cripple ourselves intentionally, I'm going to set
106 * this flag, and as Gallium's interface continues to change, I
107 * hope that this single monolithic GLSL enable can slowly get
108 * split down into many different pieces and the state tracker
109 * will handle fallbacks transparently, like it should.
114 case PIPE_CAP_DUAL_SOURCE_BLEND
:
116 case PIPE_CAP_ANISOTROPIC_FILTER
:
118 case PIPE_CAP_POINT_SPRITE
:
120 case PIPE_CAP_MAX_RENDER_TARGETS
:
122 case PIPE_CAP_OCCLUSION_QUERY
:
124 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
126 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
127 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
128 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
129 if (r300screen
->caps
->is_r500
) {
136 case PIPE_CAP_TEXTURE_MIRROR_CLAMP
:
138 case PIPE_CAP_TEXTURE_MIRROR_REPEAT
:
140 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS
:
142 case PIPE_CAP_TGSI_CONT_SUPPORTED
:
144 case PIPE_CAP_BLEND_EQUATION_SEPARATE
:
147 if (r300screen
->caps
->is_r500
) {
152 case PIPE_CAP_MAX_CONST_BUFFERS
:
154 case PIPE_CAP_MAX_CONST_BUFFER_SIZE
:
156 case PIPE_CAP_INDEP_BLEND_ENABLE
:
158 case PIPE_CAP_INDEP_BLEND_FUNC
:
160 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT
:
161 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER
:
163 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT
:
164 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER
:
167 fprintf(stderr
, "r300: Implementation error: Bad param %d\n",
173 static float r300_get_paramf(struct pipe_screen
* pscreen
, int param
)
175 struct r300_screen
* r300screen
= r300_screen(pscreen
);
178 case PIPE_CAP_MAX_LINE_WIDTH
:
179 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
180 case PIPE_CAP_MAX_POINT_WIDTH
:
181 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
182 /* The maximum dimensions of the colorbuffer are our practical
183 * rendering limits. 2048 pixels should be enough for anybody. */
184 if (r300screen
->caps
->is_r500
) {
186 } else if (r300screen
->caps
->is_r400
) {
191 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
193 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
196 fprintf(stderr
, "r300: Implementation error: Bad paramf %d\n",
202 static boolean
r300_is_format_supported(struct pipe_screen
* screen
,
203 enum pipe_format format
,
204 enum pipe_texture_target target
,
209 boolean is_r500
= r300_screen(screen
)->caps
->is_r500
;
210 boolean is_z24
= format
== PIPE_FORMAT_X8Z24_UNORM
||
211 format
== PIPE_FORMAT_S8_USCALED_Z24_UNORM
;
212 boolean is_color2101010
= format
== PIPE_FORMAT_R10G10B10A2_UNORM
;
214 if (target
>= PIPE_MAX_TEXTURE_TYPES
) {
215 fprintf(stderr
, "r300: Implementation error: Received bogus texture "
216 "target %d in %s\n", target
, __FUNCTION__
);
220 /* Check sampler format support. */
221 if ((usage
& PIPE_TEXTURE_USAGE_SAMPLER
) &&
222 /* Z24 cannot be sampled from on non-r5xx. */
223 (is_r500
|| !is_z24
) &&
224 r300_is_sampler_format_supported(format
)) {
225 retval
|= PIPE_TEXTURE_USAGE_SAMPLER
;
228 /* Check colorbuffer format support. */
229 if ((usage
& (PIPE_TEXTURE_USAGE_RENDER_TARGET
|
230 PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
231 PIPE_TEXTURE_USAGE_SCANOUT
|
232 PIPE_TEXTURE_USAGE_SHARED
)) &&
233 /* 2101010 cannot be rendered to on non-r5xx. */
234 (is_r500
|| !is_color2101010
) &&
235 r300_is_colorbuffer_format_supported(format
)) {
237 (PIPE_TEXTURE_USAGE_RENDER_TARGET
|
238 PIPE_TEXTURE_USAGE_DISPLAY_TARGET
|
239 PIPE_TEXTURE_USAGE_SCANOUT
|
240 PIPE_TEXTURE_USAGE_SHARED
);
243 /* Check depth-stencil format support. */
244 if (usage
& PIPE_TEXTURE_USAGE_DEPTH_STENCIL
&&
245 r300_is_zs_format_supported(format
)) {
246 retval
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
249 return retval
== usage
;
252 static void r300_destroy_screen(struct pipe_screen
* pscreen
)
254 struct r300_screen
* r300screen
= r300_screen(pscreen
);
255 struct r300_winsys_screen
*rws
= r300_winsys_screen(pscreen
);
260 FREE(r300screen
->caps
);
264 struct pipe_screen
* r300_create_screen(struct r300_winsys_screen
*rws
)
266 struct r300_screen
*r300screen
= CALLOC_STRUCT(r300_screen
);
267 struct r300_capabilities
*caps
= CALLOC_STRUCT(r300_capabilities
);
269 if (!r300screen
|| !caps
) {
275 caps
->pci_id
= rws
->get_value(rws
, R300_VID_PCI_ID
);
276 caps
->num_frag_pipes
= rws
->get_value(rws
, R300_VID_GB_PIPES
);
277 caps
->num_z_pipes
= rws
->get_value(rws
, R300_VID_Z_PIPES
);
279 r300_init_debug(r300screen
);
280 r300_parse_chipset(caps
);
282 r300screen
->caps
= caps
;
283 r300screen
->rws
= rws
;
284 r300screen
->screen
.winsys
= (struct pipe_winsys
*)rws
;
285 r300screen
->screen
.destroy
= r300_destroy_screen
;
286 r300screen
->screen
.get_name
= r300_get_name
;
287 r300screen
->screen
.get_vendor
= r300_get_vendor
;
288 r300screen
->screen
.get_param
= r300_get_param
;
289 r300screen
->screen
.get_paramf
= r300_get_paramf
;
290 r300screen
->screen
.is_format_supported
= r300_is_format_supported
;
291 r300screen
->screen
.context_create
= r300_create_context
;
293 r300_init_screen_texture_functions(&r300screen
->screen
);
295 r300_screen_init_buffer_functions(r300screen
);
296 return &r300screen
->screen
;
299 struct r300_winsys_screen
*
300 r300_winsys_screen(struct pipe_screen
*screen
)
302 return r300_screen(screen
)->rws
;