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) {
98 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) */
147 case PIPE_CAP_TGSI_CONT_SUPPORTED:
151 debug_printf("r300: Implementation error: Bad param %d\n",
157 static float r300_get_paramf(struct pipe_screen* pscreen, int param)
159 struct r300_screen* r300screen = r300_screen(pscreen);
162 case PIPE_CAP_MAX_LINE_WIDTH:
163 case PIPE_CAP_MAX_LINE_WIDTH_AA:
164 case PIPE_CAP_MAX_POINT_WIDTH:
165 case PIPE_CAP_MAX_POINT_WIDTH_AA:
166 /* The maximum dimensions of the colorbuffer are our practical
167 * rendering limits. 2048 pixels should be enough for anybody. */
168 if (r300screen->caps->is_r500) {
173 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
175 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
178 debug_printf("r300: Implementation error: Bad paramf %d\n",
184 static boolean check_tex_2d_format(enum pipe_format format, uint32_t usage,
188 /* Supported formats. */
190 case PIPE_FORMAT_A4R4G4B4_UNORM:
191 case PIPE_FORMAT_R5G6B5_UNORM:
192 case PIPE_FORMAT_A1R5G5B5_UNORM:
194 (PIPE_TEXTURE_USAGE_RENDER_TARGET |
195 PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
196 PIPE_TEXTURE_USAGE_PRIMARY);
199 case PIPE_FORMAT_A8R8G8B8_SRGB:
200 case PIPE_FORMAT_R8G8B8A8_SRGB:
201 case PIPE_FORMAT_DXT1_RGB:
202 case PIPE_FORMAT_DXT1_RGBA:
203 case PIPE_FORMAT_DXT3_RGBA:
204 case PIPE_FORMAT_DXT5_RGBA:
205 case PIPE_FORMAT_YCBCR:
206 return usage & PIPE_TEXTURE_USAGE_SAMPLER;
208 /* Colorbuffer or texture */
209 case PIPE_FORMAT_A8R8G8B8_UNORM:
210 case PIPE_FORMAT_R8G8B8A8_UNORM:
211 case PIPE_FORMAT_I8_UNORM:
213 (PIPE_TEXTURE_USAGE_RENDER_TARGET |
214 PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
215 PIPE_TEXTURE_USAGE_PRIMARY |
216 PIPE_TEXTURE_USAGE_SAMPLER);
219 case PIPE_FORMAT_Z16_UNORM:
220 return usage & PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
222 /* Z buffer with stencil or texture */
223 case PIPE_FORMAT_Z24S8_UNORM:
225 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL |
226 PIPE_TEXTURE_USAGE_SAMPLER);
228 /* Definitely unsupported formats. */
229 /* Non-usable Z buffer/stencil formats. */
230 case PIPE_FORMAT_Z24X8_UNORM:
231 case PIPE_FORMAT_S8Z24_UNORM:
232 case PIPE_FORMAT_X8Z24_UNORM:
233 debug_printf("r300: Note: Got unsupported format: %s in %s\n",
234 pf_name(format), __FUNCTION__);
237 /* XXX These don't even exist
238 case PIPE_FORMAT_A32R32G32B32:
239 case PIPE_FORMAT_A16R16G16B16: */
240 /* XXX Insert YUV422 packed VYUY and YVYU here */
241 /* XXX What the deuce is UV88? (r3xx accel page 14)
242 debug_printf("r300: Warning: Got unimplemented format: %s in %s\n",
243 pf_name(format), __FUNCTION__);
246 /* XXX Supported yet unimplemented r5xx formats: */
247 /* XXX Again, what is UV1010 this time? (r5xx accel page 148) */
248 /* XXX Even more that don't exist
249 case PIPE_FORMAT_A10R10G10B10_UNORM:
250 case PIPE_FORMAT_A2R10G10B10_UNORM:
251 case PIPE_FORMAT_I10_UNORM:
253 "r300: Warning: Got unimplemented r500 format: %s in %s\n",
254 pf_name(format), __FUNCTION__);
258 /* Unknown format... */
259 debug_printf("r300: Warning: Got unknown format: %s in %s\n",
260 pf_name(format), __FUNCTION__);
267 /* XXX moar targets */
268 static boolean r300_is_format_supported(struct pipe_screen* pscreen,
269 enum pipe_format format,
270 enum pipe_texture_target target,
275 case PIPE_TEXTURE_2D:
276 return check_tex_2d_format(format, tex_usage,
277 r300_screen(pscreen)->caps->is_r500);
278 case PIPE_TEXTURE_1D:
279 case PIPE_TEXTURE_3D:
280 case PIPE_TEXTURE_CUBE:
281 debug_printf("r300: Implementation error: Unsupported format "
282 "target: %d\n", target);
285 debug_printf("r300: Fatal: This is not a format target: %d\n",
294 static struct pipe_transfer*
295 r300_get_tex_transfer(struct pipe_screen *screen,
296 struct pipe_texture *texture,
297 unsigned face, unsigned level, unsigned zslice,
298 enum pipe_transfer_usage usage, unsigned x, unsigned y,
299 unsigned w, unsigned h)
301 struct r300_texture *tex = (struct r300_texture *)texture;
302 struct r300_transfer *trans;
303 unsigned offset; /* in bytes */
305 /* XXX Add support for these things */
306 if (texture->target == PIPE_TEXTURE_CUBE) {
307 debug_printf("PIPE_TEXTURE_CUBE is not yet supported.\n");
308 /* offset = tex->image_offset[level][face]; */
310 else if (texture->target == PIPE_TEXTURE_3D) {
311 debug_printf("PIPE_TEXTURE_3D is not yet supported.\n");
312 /* offset = tex->image_offset[level][zslice]; */
315 offset = tex->offset[level];
320 trans = CALLOC_STRUCT(r300_transfer);
322 pipe_texture_reference(&trans->transfer.texture, texture);
323 trans->transfer.format = trans->transfer.format;
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 = tex->stride;
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;
393 r300_parse_chipset(caps);
395 r300screen->caps = caps;
396 r300screen->screen.winsys = (struct pipe_winsys*)r300_winsys;
397 r300screen->screen.destroy = r300_destroy_screen;
398 r300screen->screen.get_name = r300_get_name;
399 r300screen->screen.get_vendor = r300_get_vendor;
400 r300screen->screen.get_param = r300_get_param;
401 r300screen->screen.get_paramf = r300_get_paramf;
402 r300screen->screen.is_format_supported = r300_is_format_supported;
403 r300screen->screen.get_tex_transfer = r300_get_tex_transfer;
404 r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy;
405 r300screen->screen.transfer_map = r300_transfer_map;
406 r300screen->screen.transfer_unmap = r300_transfer_unmap;
408 r300_init_screen_texture_functions(&r300screen->screen);
409 u_simple_screen_init(&r300screen->screen);
411 return &r300screen->screen;