summaryrefslogtreecommitdiff
path: root/src/gallium/drivers/r300/r300_screen.c
blob: 52d0247fbfdf66683a8f3ba3f48d5e128653b3ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
/*
 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * on the rights to use, copy, modify, merge, publish, distribute, sub
 * license, and/or sell copies of the Software, and to permit persons to whom
 * the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE. */

#include "util/u_format.h"
#include "util/u_format_s3tc.h"
#include "util/u_memory.h"

#include "r300_context.h"
#include "r300_texture.h"
#include "r300_screen_buffer.h"
#include "r300_state_inlines.h"
#include "r300_winsys.h"
#include "r300_public.h"

#include "draw/draw_context.h"

/* Return the identifier behind whom the brave coders responsible for this
 * amalgamation of code, sweat, and duct tape, routinely obscure their names.
 *
 * ...I should have just put "Corbin Simpson", but I'm not that cool.
 *
 * (Or egotistical. Yet.) */
static const char* r300_get_vendor(struct pipe_screen* pscreen)
{
    return "X.Org R300 Project";
}

static const char* chip_families[] = {
    "ATI R300",
    "ATI R350",
    "ATI R360",
    "ATI RV350",
    "ATI RV370",
    "ATI RV380",
    "ATI R420",
    "ATI R423",
    "ATI R430",
    "ATI R480",
    "ATI R481",
    "ATI RV410",
    "ATI RS400",
    "ATI RC410",
    "ATI RS480",
    "ATI RS482",
    "ATI RS600",
    "ATI RS690",
    "ATI RS740",
    "ATI RV515",
    "ATI R520",
    "ATI RV530",
    "ATI R580",
    "ATI RV560",
    "ATI RV570"
};

static const char* r300_get_name(struct pipe_screen* pscreen)
{
    struct r300_screen* r300screen = r300_screen(pscreen);

    return chip_families[r300screen->caps.family];
}

static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
{
    struct r300_screen* r300screen = r300_screen(pscreen);
    boolean is_r500 = r300screen->caps.is_r500;

    switch (param) {
        /* Supported features (boolean caps). */
        case PIPE_CAP_NPOT_TEXTURES:
        case PIPE_CAP_TWO_SIDED_STENCIL:
        case PIPE_CAP_GLSL:
            /* I'll be frank. This is a lie.
             *
             * We don't truly support GLSL on any of this driver's chipsets.
             * To be fair, no chipset supports the full GLSL specification
             * to the best of our knowledge, but some of the less esoteric
             * features are still missing here.
             *
             * Rather than cripple ourselves intentionally, I'm going to set
             * this flag, and as Gallium's interface continues to change, I
             * hope that this single monolithic GLSL enable can slowly get
             * split down into many different pieces and the state tracker
             * will handle fallbacks transparently, like it should.
             *
             * ~ C.
             */
        case PIPE_CAP_ANISOTROPIC_FILTER:
        case PIPE_CAP_POINT_SPRITE:
        case PIPE_CAP_OCCLUSION_QUERY:
        case PIPE_CAP_TEXTURE_SHADOW_MAP:
        case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
        case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
        case PIPE_CAP_BLEND_EQUATION_SEPARATE:
            return 1;
        case PIPE_CAP_TEXTURE_SWIZZLE:
            return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;

        /* Unsupported features (boolean caps). */
        case PIPE_CAP_TIMER_QUERY:
        case PIPE_CAP_DUAL_SOURCE_BLEND:
        case PIPE_CAP_INDEP_BLEND_ENABLE:
        case PIPE_CAP_INDEP_BLEND_FUNC:
        case PIPE_CAP_DEPTH_CLAMP:
        case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
        case PIPE_CAP_SHADER_STENCIL_EXPORT:
        case PIPE_CAP_STREAM_OUTPUT:
        case PIPE_CAP_PRIMITIVE_RESTART:
        case PIPE_CAP_INSTANCED_DRAWING:
        case PIPE_CAP_ARRAY_TEXTURES:
            return 0;

        /* Texturing. */
        case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
        case PIPE_CAP_MAX_COMBINED_SAMPLERS:
            return r300screen->caps.num_tex_units;
        case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
            return 0;
        case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
        case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
        case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
            /* 13 == 4096, 12 == 2048 */
            return is_r500 ? 13 : 12;

        /* Render targets. */
        case PIPE_CAP_MAX_RENDER_TARGETS:
            return 4;

        /* General shader limits and features. */
        case PIPE_CAP_SM3:
            return is_r500 ? 1 : 0;
        /* Fragment coordinate conventions. */
        case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
        case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
	    return 1;
        case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
        case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
            return 0;
        default:
            debug_printf("r300: Warning: Unknown CAP %d in get_param.\n",
                         param);
            return 0;
    }
}

static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
{
   struct r300_screen* r300screen = r300_screen(pscreen);
   boolean is_r400 = r300screen->caps.is_r400;
   boolean is_r500 = r300screen->caps.is_r500;

   switch (shader)
    {
    case PIPE_SHADER_FRAGMENT:
        switch (param)
        {
        case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
            return is_r500 || is_r400 ? 512 : 96;
        case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
            return is_r500 || is_r400 ? 512 : 64;
        case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
            return is_r500 || is_r400 ? 512 : 32;
        case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
            return is_r500 ? 511 : 4;
        case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
            return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
            /* Fragment shader limits. */
        case PIPE_SHADER_CAP_MAX_INPUTS:
            /* 2 colors + 8 texcoords are always supported
             * (minus fog and wpos).
             *
             * R500 has the ability to turn 3rd and 4th color into
             * additional texcoords but there is no two-sided color
             * selection then. However the facing bit can be used instead. */
            return 10;
        case PIPE_SHADER_CAP_MAX_CONSTS:
            return is_r500 ? 256 : 32;
        case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
            return 1;
        case PIPE_SHADER_CAP_MAX_TEMPS:
            return is_r500 ? 128 : is_r400 ? 64 : 32;
        case PIPE_SHADER_CAP_MAX_ADDRS:
            return 0;
        case PIPE_SHADER_CAP_MAX_PREDS:
            return is_r500 ? 1 : 0;
        case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
            return 1;
        case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
        case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
        case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
        case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
            return 0;
        case PIPE_SHADER_CAP_SUBROUTINES:
            return 0;
        }
        break;
    case PIPE_SHADER_VERTEX:
        if (!r300screen->caps.has_tcl) {
            return draw_get_shader_param(shader, param);
        }

        switch (param)
        {
        case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
        case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
            return is_r500 ? 1024 : 256;
        case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
        case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
            return 0;
        case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
            return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
        case PIPE_SHADER_CAP_MAX_INPUTS:
            return 16;
        case PIPE_SHADER_CAP_MAX_CONSTS:
            return 256;
        case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
            return 1;
        case PIPE_SHADER_CAP_MAX_TEMPS:
            return 32;
        case PIPE_SHADER_CAP_MAX_ADDRS:
            return 1; /* XXX guessed */
        case PIPE_SHADER_CAP_MAX_PREDS:
            return is_r500 ? 4 : 0; /* XXX guessed. */
        case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
            return 1;
        case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
        case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
        case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
            return 0;
        case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
            return 1;
        case PIPE_SHADER_CAP_SUBROUTINES:
            return 0;
        default:
            break;
        }
        break;
    default:
        break;
    }
    return 0;
}

static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
{
    struct r300_screen* r300screen = r300_screen(pscreen);

    switch (param) {
        case PIPE_CAP_MAX_LINE_WIDTH:
        case PIPE_CAP_MAX_LINE_WIDTH_AA:
        case PIPE_CAP_MAX_POINT_WIDTH:
        case PIPE_CAP_MAX_POINT_WIDTH_AA:
            /* The maximum dimensions of the colorbuffer are our practical
             * rendering limits. 2048 pixels should be enough for anybody. */
            if (r300screen->caps.is_r500) {
                return 4096.0f;
            } else if (r300screen->caps.is_r400) {
                return 4021.0f;
            } else {
                return 2560.0f;
            }
        case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
            return 16.0f;
        case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
            return 16.0f;
        case PIPE_CAP_GUARD_BAND_LEFT:
        case PIPE_CAP_GUARD_BAND_TOP:
        case PIPE_CAP_GUARD_BAND_RIGHT:
        case PIPE_CAP_GUARD_BAND_BOTTOM:
            /* XXX I don't know what these should be but the least we can do is
             * silence the potential error message */
            return 0.0f;
        default:
            debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
                         param);
            return 0.0f;
    }
}

static boolean r300_is_format_supported(struct pipe_screen* screen,
                                        enum pipe_format format,
                                        enum pipe_texture_target target,
                                        unsigned sample_count,
                                        unsigned usage,
                                        unsigned geom_flags)
{
    struct r300_winsys_screen *rws = r300_screen(screen)->rws;
    uint32_t retval = 0;
    boolean drm_2_8_0 = rws->get_value(rws, R300_VID_DRM_2_8_0);
    boolean is_r500 = r300_screen(screen)->caps.is_r500;
    boolean is_r400 = r300_screen(screen)->caps.is_r400;
    boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
                              format == PIPE_FORMAT_R10G10B10X2_SNORM ||
                              format == PIPE_FORMAT_B10G10R10A2_UNORM ||
                              format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
    boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
                       format == PIPE_FORMAT_RGTC1_SNORM;
    boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
                       format == PIPE_FORMAT_RGTC2_SNORM;
    boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
                            format == PIPE_FORMAT_R16G16_FLOAT ||
                            format == PIPE_FORMAT_R16G16B16_FLOAT ||
                            format == PIPE_FORMAT_R16G16B16A16_FLOAT;

    /* Check multisampling support. */
    switch (sample_count) {
        case 0:
        case 1:
            break;
        case 2:
        case 3:
        case 4:
        case 6:
            return FALSE;
#if 0
            if (usage != PIPE_BIND_RENDER_TARGET ||
                !util_format_is_rgba8_variant(
                    util_format_description(format))) {
                return FALSE;
            }
#endif
            break;
        default:
            return FALSE;
    }

    /* Check sampler format support. */
    if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
        /* ATI1N is r5xx-only. */
        (is_r500 || !is_ati1n) &&
        /* ATI2N is supported on r4xx-r5xx. */
        (is_r400 || is_r500 || !is_ati2n) &&
        r300_is_sampler_format_supported(format)) {
        retval |= PIPE_BIND_SAMPLER_VIEW;
    }

    /* Check colorbuffer format support. */
    if ((usage & (PIPE_BIND_RENDER_TARGET |
                  PIPE_BIND_DISPLAY_TARGET |
                  PIPE_BIND_SCANOUT |
                  PIPE_BIND_SHARED)) &&
        /* 2101010 cannot be rendered to on non-r5xx. */
        (!is_color2101010 || (is_r500 && drm_2_8_0)) &&
        r300_is_colorbuffer_format_supported(format)) {
        retval |= usage &
            (PIPE_BIND_RENDER_TARGET |
             PIPE_BIND_DISPLAY_TARGET |
             PIPE_BIND_SCANOUT |
             PIPE_BIND_SHARED);
    }

    /* Check depth-stencil format support. */
    if (usage & PIPE_BIND_DEPTH_STENCIL &&
        r300_is_zs_format_supported(format)) {
        retval |= PIPE_BIND_DEPTH_STENCIL;
    }

    /* Check vertex buffer format support. */
    if (usage & PIPE_BIND_VERTEX_BUFFER &&
        /* Half float is supported on >= RV350. */
        (is_r400 || is_r500 || !is_half_float) &&
        r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
        retval |= PIPE_BIND_VERTEX_BUFFER;
    }

    /* Transfers are always supported. */
    if (usage & PIPE_BIND_TRANSFER_READ)
        retval |= PIPE_BIND_TRANSFER_READ;
    if (usage & PIPE_BIND_TRANSFER_WRITE)
        retval |= PIPE_BIND_TRANSFER_WRITE;

    return retval == usage;
}

static void r300_destroy_screen(struct pipe_screen* pscreen)
{
    struct r300_screen* r300screen = r300_screen(pscreen);
    struct r300_winsys_screen *rws = r300_winsys_screen(pscreen);

    util_slab_destroy(&r300screen->pool_buffers);
    pipe_mutex_destroy(r300screen->num_contexts_mutex);

    if (rws)
      rws->destroy(rws);

    FREE(r300screen);
}

static void r300_fence_reference(struct pipe_screen *screen,
                                 struct pipe_fence_handle **ptr,
                                 struct pipe_fence_handle *fence)
{
    r300_winsys_bo_reference((struct r300_winsys_bo**)ptr,
                             (struct r300_winsys_bo*)fence);
}

static int r300_fence_signalled(struct pipe_screen *screen,
                                struct pipe_fence_handle *fence,
                                unsigned flags)
{
    struct r300_winsys_screen *rws = r300_screen(screen)->rws;
    struct r300_winsys_bo *rfence = (struct r300_winsys_bo*)fence;

    return !rws->buffer_is_busy(rfence) ? 0 : 1; /* 0 == success */
}

static int r300_fence_finish(struct pipe_screen *screen,
                             struct pipe_fence_handle *fence,
                             unsigned flags)
{
    struct r300_winsys_screen *rws = r300_screen(screen)->rws;
    struct r300_winsys_bo *rfence = (struct r300_winsys_bo*)fence;

    rws->buffer_wait(rfence);
    return 0; /* 0 == success */
}

struct pipe_screen* r300_screen_create(struct r300_winsys_screen *rws)
{
    struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);

    if (!r300screen) {
        FREE(r300screen);
        return NULL;
    }

    r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID);
    r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES);
    r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES);

    r300_init_debug(r300screen);
    r300_parse_chipset(&r300screen->caps);

    if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
        r300screen->caps.zmask_ram = 0;
    if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
        r300screen->caps.hiz_ram = 0;

    pipe_mutex_init(r300screen->num_contexts_mutex);

    util_slab_create(&r300screen->pool_buffers,
                     sizeof(struct r300_resource), 64,
                     UTIL_SLAB_SINGLETHREADED);

    r300screen->rws = rws;
    r300screen->screen.winsys = (struct pipe_winsys*)rws;
    r300screen->screen.destroy = r300_destroy_screen;
    r300screen->screen.get_name = r300_get_name;
    r300screen->screen.get_vendor = r300_get_vendor;
    r300screen->screen.get_param = r300_get_param;
    r300screen->screen.get_shader_param = r300_get_shader_param;
    r300screen->screen.get_paramf = r300_get_paramf;
    r300screen->screen.is_format_supported = r300_is_format_supported;
    r300screen->screen.context_create = r300_create_context;

    r300screen->screen.fence_reference = r300_fence_reference;
    r300screen->screen.fence_signalled = r300_fence_signalled;
    r300screen->screen.fence_finish = r300_fence_finish;

    r300_init_screen_resource_functions(r300screen);

    util_format_s3tc_init();

    return &r300screen->screen;
}