summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/r300/r300_state_inlines.h
blob: 62c03b3909bf38c1daaea81678e6f44fbba4607e (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
/*
 * Copyright 2009 Joakim Sindholt <opensource@zhasha.com>
 *                Corbin Simpson <MostAwesomeDude@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. */

#ifndef R300_STATE_INLINES_H
#define R300_STATE_INLINES_H

#include "draw/draw_vertex.h"
#include "pipe/p_format.h"
#include "util/u_format.h"
#include "r300_reg.h"
#include <stdio.h>

/* Some maths. These should probably find their way to u_math, if needed. */

static INLINE int pack_float_16_6x(float f) {
    return ((int)(f * 6.0) & 0xffff);
}

/* Blend state. */

static INLINE uint32_t r300_translate_blend_function(int blend_func,
                                                     boolean clamp)
{
    switch (blend_func) {
    case PIPE_BLEND_ADD:
        return clamp ? R300_COMB_FCN_ADD_CLAMP : R300_COMB_FCN_ADD_NOCLAMP;
    case PIPE_BLEND_SUBTRACT:
        return clamp ? R300_COMB_FCN_SUB_CLAMP : R300_COMB_FCN_SUB_NOCLAMP;
    case PIPE_BLEND_REVERSE_SUBTRACT:
        return clamp ? R300_COMB_FCN_RSUB_CLAMP : R300_COMB_FCN_RSUB_NOCLAMP;
    case PIPE_BLEND_MIN:
        return R300_COMB_FCN_MIN;
    case PIPE_BLEND_MAX:
        return R300_COMB_FCN_MAX;
    default:
        fprintf(stderr, "r300: Unknown blend function %d\n", blend_func);
        assert(0);
        break;
    }
    return 0;
}

/* XXX we can also offer the D3D versions of some of these... */
static INLINE uint32_t r300_translate_blend_factor(int blend_fact)
{
    switch (blend_fact) {
        case PIPE_BLENDFACTOR_ONE:
            return R300_BLEND_GL_ONE;
        case PIPE_BLENDFACTOR_SRC_COLOR:
            return R300_BLEND_GL_SRC_COLOR;
        case PIPE_BLENDFACTOR_SRC_ALPHA:
            return R300_BLEND_GL_SRC_ALPHA;
        case PIPE_BLENDFACTOR_DST_ALPHA:
            return R300_BLEND_GL_DST_ALPHA;
        case PIPE_BLENDFACTOR_DST_COLOR:
            return R300_BLEND_GL_DST_COLOR;
        case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
            return R300_BLEND_GL_SRC_ALPHA_SATURATE;
        case PIPE_BLENDFACTOR_CONST_COLOR:
            return R300_BLEND_GL_CONST_COLOR;
        case PIPE_BLENDFACTOR_CONST_ALPHA:
            return R300_BLEND_GL_CONST_ALPHA;
        case PIPE_BLENDFACTOR_ZERO:
            return R300_BLEND_GL_ZERO;
        case PIPE_BLENDFACTOR_INV_SRC_COLOR:
            return R300_BLEND_GL_ONE_MINUS_SRC_COLOR;
        case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
            return R300_BLEND_GL_ONE_MINUS_SRC_ALPHA;
        case PIPE_BLENDFACTOR_INV_DST_ALPHA:
            return R300_BLEND_GL_ONE_MINUS_DST_ALPHA;
        case PIPE_BLENDFACTOR_INV_DST_COLOR:
            return R300_BLEND_GL_ONE_MINUS_DST_COLOR;
        case PIPE_BLENDFACTOR_INV_CONST_COLOR:
            return R300_BLEND_GL_ONE_MINUS_CONST_COLOR;
        case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
            return R300_BLEND_GL_ONE_MINUS_CONST_ALPHA;

        case PIPE_BLENDFACTOR_SRC1_COLOR:
        case PIPE_BLENDFACTOR_SRC1_ALPHA:
        case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
        case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
            fprintf(stderr, "r300: Implementation error: "
                "Bad blend factor %d not supported!\n", blend_fact);
            assert(0);
            break;

        default:
            fprintf(stderr, "r300: Unknown blend factor %d\n", blend_fact);
            assert(0);
            break;
    }
    return 0;
}

/* DSA state. */

static INLINE uint32_t r300_translate_depth_stencil_function(int zs_func)
{
    switch (zs_func) {
        case PIPE_FUNC_NEVER:
            return R300_ZS_NEVER;
        case PIPE_FUNC_LESS:
            return R300_ZS_LESS;
        case PIPE_FUNC_EQUAL:
            return R300_ZS_EQUAL;
        case PIPE_FUNC_LEQUAL:
            return R300_ZS_LEQUAL;
        case PIPE_FUNC_GREATER:
            return R300_ZS_GREATER;
        case PIPE_FUNC_NOTEQUAL:
            return R300_ZS_NOTEQUAL;
        case PIPE_FUNC_GEQUAL:
            return R300_ZS_GEQUAL;
        case PIPE_FUNC_ALWAYS:
            return R300_ZS_ALWAYS;
        default:
            fprintf(stderr, "r300: Unknown depth/stencil function %d\n",
                zs_func);
            assert(0);
            break;
    }
    return 0;
}

static INLINE uint32_t r300_translate_stencil_op(int s_op)
{
    switch (s_op) {
        case PIPE_STENCIL_OP_KEEP:
            return R300_ZS_KEEP;
        case PIPE_STENCIL_OP_ZERO:
            return R300_ZS_ZERO;
        case PIPE_STENCIL_OP_REPLACE:
            return R300_ZS_REPLACE;
        case PIPE_STENCIL_OP_INCR:
            return R300_ZS_INCR;
        case PIPE_STENCIL_OP_DECR:
            return R300_ZS_DECR;
        case PIPE_STENCIL_OP_INCR_WRAP:
            return R300_ZS_INCR_WRAP;
        case PIPE_STENCIL_OP_DECR_WRAP:
            return R300_ZS_DECR_WRAP;
        case PIPE_STENCIL_OP_INVERT:
            return R300_ZS_INVERT;
        default:
            fprintf(stderr, "r300: Unknown stencil op %d", s_op);
            assert(0);
            break;
    }
    return 0;
}

static INLINE uint32_t r300_translate_alpha_function(int alpha_func)
{
    switch (alpha_func) {
        case PIPE_FUNC_NEVER:
            return R300_FG_ALPHA_FUNC_NEVER;
        case PIPE_FUNC_LESS:
            return R300_FG_ALPHA_FUNC_LESS;
        case PIPE_FUNC_EQUAL:
            return R300_FG_ALPHA_FUNC_EQUAL;
        case PIPE_FUNC_LEQUAL:
            return R300_FG_ALPHA_FUNC_LE;
        case PIPE_FUNC_GREATER:
            return R300_FG_ALPHA_FUNC_GREATER;
        case PIPE_FUNC_NOTEQUAL:
            return R300_FG_ALPHA_FUNC_NOTEQUAL;
        case PIPE_FUNC_GEQUAL:
            return R300_FG_ALPHA_FUNC_GE;
        case PIPE_FUNC_ALWAYS:
            return R300_FG_ALPHA_FUNC_ALWAYS;
        default:
            fprintf(stderr, "r300: Unknown alpha function %d", alpha_func);
            assert(0);
            break;
    }
    return 0;
}

static INLINE uint32_t
r300_translate_polygon_mode_front(unsigned mode) {
    switch (mode)
    {
        case PIPE_POLYGON_MODE_FILL:
            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
        case PIPE_POLYGON_MODE_LINE:
            return R300_GA_POLY_MODE_FRONT_PTYPE_LINE;
        case PIPE_POLYGON_MODE_POINT:
            return R300_GA_POLY_MODE_FRONT_PTYPE_POINT;

        default:
            fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
                __FUNCTION__);
            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
    }
}

static INLINE uint32_t
r300_translate_polygon_mode_back(unsigned mode) {
    switch (mode)
    {
        case PIPE_POLYGON_MODE_FILL:
            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
        case PIPE_POLYGON_MODE_LINE:
            return R300_GA_POLY_MODE_BACK_PTYPE_LINE;
        case PIPE_POLYGON_MODE_POINT:
            return R300_GA_POLY_MODE_BACK_PTYPE_POINT;

        default:
            fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
                __FUNCTION__);
            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
    }
}

/* Texture sampler state. */

static INLINE uint32_t r300_translate_wrap(int wrap)
{
    switch (wrap) {
        case PIPE_TEX_WRAP_REPEAT:
            return R300_TX_REPEAT;
        case PIPE_TEX_WRAP_CLAMP:
            return R300_TX_CLAMP;
        case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
            return R300_TX_CLAMP_TO_EDGE;
        case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
            return R300_TX_CLAMP_TO_BORDER;
        case PIPE_TEX_WRAP_MIRROR_REPEAT:
            return R300_TX_REPEAT | R300_TX_MIRRORED;
        case PIPE_TEX_WRAP_MIRROR_CLAMP:
            return R300_TX_CLAMP | R300_TX_MIRRORED;
        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
            return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
            return R300_TX_CLAMP_TO_BORDER | R300_TX_MIRRORED;
        default:
            fprintf(stderr, "r300: Unknown texture wrap %d", wrap);
            assert(0);
            return 0;
    }
}

static INLINE uint32_t r300_translate_tex_filters(int min, int mag, int mip,
                                                  boolean is_anisotropic)
{
    uint32_t retval = 0;

    switch (min) {
    case PIPE_TEX_FILTER_NEAREST:
        retval |= R300_TX_MIN_FILTER_NEAREST;
        break;
    case PIPE_TEX_FILTER_LINEAR:
        retval |= is_anisotropic ? R300_TX_MIN_FILTER_ANISO :
                                   R300_TX_MIN_FILTER_LINEAR;
        break;
    default:
        fprintf(stderr, "r300: Unknown texture filter %d\n", min);
        assert(0);
    }

    switch (mag) {
    case PIPE_TEX_FILTER_NEAREST:
        retval |= R300_TX_MAG_FILTER_NEAREST;
        break;
    case PIPE_TEX_FILTER_LINEAR:
        retval |= is_anisotropic ? R300_TX_MAG_FILTER_ANISO :
                                   R300_TX_MAG_FILTER_LINEAR;
        break;
    default:
        fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
        assert(0);
    }

    switch (mip) {
    case PIPE_TEX_MIPFILTER_NONE:
        retval |= R300_TX_MIN_FILTER_MIP_NONE;
        break;
    case PIPE_TEX_MIPFILTER_NEAREST:
        retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
        break;
    case PIPE_TEX_MIPFILTER_LINEAR:
        retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
        break;
    default:
        fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
        assert(0);
    }

    return retval;
}

static INLINE uint32_t r300_anisotropy(unsigned max_aniso)
{
    if (max_aniso >= 16) {
        return R300_TX_MAX_ANISO_16_TO_1;
    } else if (max_aniso >= 8) {
        return R300_TX_MAX_ANISO_8_TO_1;
    } else if (max_aniso >= 4) {
        return R300_TX_MAX_ANISO_4_TO_1;
    } else if (max_aniso >= 2) {
        return R300_TX_MAX_ANISO_2_TO_1;
    } else {
        return R300_TX_MAX_ANISO_1_TO_1;
    }
}

static INLINE uint32_t r500_anisotropy(unsigned max_aniso)
{
    if (!max_aniso) {
        return 0;
    }
    max_aniso -= 1;

    // Map the range [0, 15] to [0, 63].
    return R500_TX_MAX_ANISO(MIN2((unsigned)(max_aniso*4.2001), 63)) |
           R500_TX_ANISO_HIGH_QUALITY;
}

/* Translate pipe_formats into PSC vertex types. */
static INLINE uint16_t
r300_translate_vertex_data_type(enum pipe_format format) {
    uint32_t result = 0;
    const struct util_format_description *desc;
    unsigned i;

    desc = util_format_description(format);

    if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
        return R300_INVALID_FORMAT;
    }

    /* Find the first non-VOID channel. */
    for (i = 0; i < 4; i++) {
        if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
            break;
        }
    }

    switch (desc->channel[i].type) {
        /* Half-floats, floats, doubles */
        case UTIL_FORMAT_TYPE_FLOAT:
            switch (desc->channel[i].size) {
                case 16:
                    /* Supported only on RV350 and later. */
                    if (desc->nr_channels > 2) {
                        result = R300_DATA_TYPE_FLT16_4;
                    } else {
                        result = R300_DATA_TYPE_FLT16_2;
                    }
                    break;
                case 32:
                    result = R300_DATA_TYPE_FLOAT_1 + (desc->nr_channels - 1);
                    break;
                default:
                    return R300_INVALID_FORMAT;
            }
            break;
        /* Unsigned ints */
        case UTIL_FORMAT_TYPE_UNSIGNED:
        /* Signed ints */
        case UTIL_FORMAT_TYPE_SIGNED:
            switch (desc->channel[i].size) {
                case 8:
                    result = R300_DATA_TYPE_BYTE;
                    break;
                case 16:
                    if (desc->nr_channels > 2) {
                        result = R300_DATA_TYPE_SHORT_4;
                    } else {
                        result = R300_DATA_TYPE_SHORT_2;
                    }
                    break;
                default:
                    return R300_INVALID_FORMAT;
            }
            break;
        default:
            return R300_INVALID_FORMAT;
    }

    if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
        result |= R300_SIGNED;
    }
    if (desc->channel[i].normalized) {
        result |= R300_NORMALIZE;
    }

    return result;
}

static INLINE uint16_t
r300_translate_vertex_data_swizzle(enum pipe_format format) {
    const struct util_format_description *desc = util_format_description(format);
    unsigned i, swizzle = 0;

    assert(format);

    if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
        fprintf(stderr, "r300: Bad format %s in %s:%d\n",
            util_format_short_name(format), __FUNCTION__, __LINE__);
        return 0;
    }

    for (i = 0; i < desc->nr_channels; i++) {
        swizzle |=
            MIN2(desc->swizzle[i], R300_SWIZZLE_SELECT_FP_ONE) << (3*i);
    }
    /* Set (0,0,0,1) in unused components. */
    for (; i < 3; i++) {
        swizzle |= R300_SWIZZLE_SELECT_FP_ZERO << (3*i);
    }
    for (; i < 4; i++) {
        swizzle |= R300_SWIZZLE_SELECT_FP_ONE << (3*i);
    }

    return swizzle | (0xf << R300_WRITE_ENA_SHIFT);
}

#endif /* R300_STATE_INLINES_H */