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4358 Serge 1
/*
2
 * Copyright 2009 Joakim Sindholt 
3
 *                Corbin Simpson 
4
 *
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:
11
 *
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
14
 * Software.
15
 *
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. */
23
 
24
#ifndef R300_STATE_INLINES_H
25
#define R300_STATE_INLINES_H
26
 
27
#include "draw/draw_vertex.h"
28
#include "pipe/p_format.h"
29
#include "util/u_format.h"
30
#include "r300_reg.h"
31
#include 
32
 
33
/* Some maths. These should probably find their way to u_math, if needed. */
34
 
35
static INLINE int pack_float_16_6x(float f) {
36
    return ((int)(f * 6.0) & 0xffff);
37
}
38
 
39
/* Blend state. */
40
 
41
static INLINE uint32_t r300_translate_blend_function(int blend_func,
42
                                                     boolean clamp)
43
{
44
    switch (blend_func) {
45
    case PIPE_BLEND_ADD:
46
        return clamp ? R300_COMB_FCN_ADD_CLAMP : R300_COMB_FCN_ADD_NOCLAMP;
47
    case PIPE_BLEND_SUBTRACT:
48
        return clamp ? R300_COMB_FCN_SUB_CLAMP : R300_COMB_FCN_SUB_NOCLAMP;
49
    case PIPE_BLEND_REVERSE_SUBTRACT:
50
        return clamp ? R300_COMB_FCN_RSUB_CLAMP : R300_COMB_FCN_RSUB_NOCLAMP;
51
    case PIPE_BLEND_MIN:
52
        return R300_COMB_FCN_MIN;
53
    case PIPE_BLEND_MAX:
54
        return R300_COMB_FCN_MAX;
55
    default:
56
        fprintf(stderr, "r300: Unknown blend function %d\n", blend_func);
57
        assert(0);
58
        break;
59
    }
60
    return 0;
61
}
62
 
63
/* XXX we can also offer the D3D versions of some of these... */
64
static INLINE uint32_t r300_translate_blend_factor(int blend_fact)
65
{
66
    switch (blend_fact) {
67
        case PIPE_BLENDFACTOR_ONE:
68
            return R300_BLEND_GL_ONE;
69
        case PIPE_BLENDFACTOR_SRC_COLOR:
70
            return R300_BLEND_GL_SRC_COLOR;
71
        case PIPE_BLENDFACTOR_SRC_ALPHA:
72
            return R300_BLEND_GL_SRC_ALPHA;
73
        case PIPE_BLENDFACTOR_DST_ALPHA:
74
            return R300_BLEND_GL_DST_ALPHA;
75
        case PIPE_BLENDFACTOR_DST_COLOR:
76
            return R300_BLEND_GL_DST_COLOR;
77
        case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
78
            return R300_BLEND_GL_SRC_ALPHA_SATURATE;
79
        case PIPE_BLENDFACTOR_CONST_COLOR:
80
            return R300_BLEND_GL_CONST_COLOR;
81
        case PIPE_BLENDFACTOR_CONST_ALPHA:
82
            return R300_BLEND_GL_CONST_ALPHA;
83
        case PIPE_BLENDFACTOR_ZERO:
84
            return R300_BLEND_GL_ZERO;
85
        case PIPE_BLENDFACTOR_INV_SRC_COLOR:
86
            return R300_BLEND_GL_ONE_MINUS_SRC_COLOR;
87
        case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
88
            return R300_BLEND_GL_ONE_MINUS_SRC_ALPHA;
89
        case PIPE_BLENDFACTOR_INV_DST_ALPHA:
90
            return R300_BLEND_GL_ONE_MINUS_DST_ALPHA;
91
        case PIPE_BLENDFACTOR_INV_DST_COLOR:
92
            return R300_BLEND_GL_ONE_MINUS_DST_COLOR;
93
        case PIPE_BLENDFACTOR_INV_CONST_COLOR:
94
            return R300_BLEND_GL_ONE_MINUS_CONST_COLOR;
95
        case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
96
            return R300_BLEND_GL_ONE_MINUS_CONST_ALPHA;
97
 
98
        case PIPE_BLENDFACTOR_SRC1_COLOR:
99
        case PIPE_BLENDFACTOR_SRC1_ALPHA:
100
        case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
101
        case PIPE_BLENDFACTOR_INV_SRC1_ALPHA:
102
            fprintf(stderr, "r300: Implementation error: "
103
                "Bad blend factor %d not supported!\n", blend_fact);
104
            assert(0);
105
            break;
106
 
107
        default:
108
            fprintf(stderr, "r300: Unknown blend factor %d\n", blend_fact);
109
            assert(0);
110
            break;
111
    }
112
    return 0;
113
}
114
 
115
/* DSA state. */
116
 
117
static INLINE uint32_t r300_translate_depth_stencil_function(int zs_func)
118
{
119
    switch (zs_func) {
120
        case PIPE_FUNC_NEVER:
121
            return R300_ZS_NEVER;
122
        case PIPE_FUNC_LESS:
123
            return R300_ZS_LESS;
124
        case PIPE_FUNC_EQUAL:
125
            return R300_ZS_EQUAL;
126
        case PIPE_FUNC_LEQUAL:
127
            return R300_ZS_LEQUAL;
128
        case PIPE_FUNC_GREATER:
129
            return R300_ZS_GREATER;
130
        case PIPE_FUNC_NOTEQUAL:
131
            return R300_ZS_NOTEQUAL;
132
        case PIPE_FUNC_GEQUAL:
133
            return R300_ZS_GEQUAL;
134
        case PIPE_FUNC_ALWAYS:
135
            return R300_ZS_ALWAYS;
136
        default:
137
            fprintf(stderr, "r300: Unknown depth/stencil function %d\n",
138
                zs_func);
139
            assert(0);
140
            break;
141
    }
142
    return 0;
143
}
144
 
145
static INLINE uint32_t r300_translate_stencil_op(int s_op)
146
{
147
    switch (s_op) {
148
        case PIPE_STENCIL_OP_KEEP:
149
            return R300_ZS_KEEP;
150
        case PIPE_STENCIL_OP_ZERO:
151
            return R300_ZS_ZERO;
152
        case PIPE_STENCIL_OP_REPLACE:
153
            return R300_ZS_REPLACE;
154
        case PIPE_STENCIL_OP_INCR:
155
            return R300_ZS_INCR;
156
        case PIPE_STENCIL_OP_DECR:
157
            return R300_ZS_DECR;
158
        case PIPE_STENCIL_OP_INCR_WRAP:
159
            return R300_ZS_INCR_WRAP;
160
        case PIPE_STENCIL_OP_DECR_WRAP:
161
            return R300_ZS_DECR_WRAP;
162
        case PIPE_STENCIL_OP_INVERT:
163
            return R300_ZS_INVERT;
164
        default:
165
            fprintf(stderr, "r300: Unknown stencil op %d", s_op);
166
            assert(0);
167
            break;
168
    }
169
    return 0;
170
}
171
 
172
static INLINE uint32_t r300_translate_alpha_function(int alpha_func)
173
{
174
    switch (alpha_func) {
175
        case PIPE_FUNC_NEVER:
176
            return R300_FG_ALPHA_FUNC_NEVER;
177
        case PIPE_FUNC_LESS:
178
            return R300_FG_ALPHA_FUNC_LESS;
179
        case PIPE_FUNC_EQUAL:
180
            return R300_FG_ALPHA_FUNC_EQUAL;
181
        case PIPE_FUNC_LEQUAL:
182
            return R300_FG_ALPHA_FUNC_LE;
183
        case PIPE_FUNC_GREATER:
184
            return R300_FG_ALPHA_FUNC_GREATER;
185
        case PIPE_FUNC_NOTEQUAL:
186
            return R300_FG_ALPHA_FUNC_NOTEQUAL;
187
        case PIPE_FUNC_GEQUAL:
188
            return R300_FG_ALPHA_FUNC_GE;
189
        case PIPE_FUNC_ALWAYS:
190
            return R300_FG_ALPHA_FUNC_ALWAYS;
191
        default:
192
            fprintf(stderr, "r300: Unknown alpha function %d", alpha_func);
193
            assert(0);
194
            break;
195
    }
196
    return 0;
197
}
198
 
199
static INLINE uint32_t
200
r300_translate_polygon_mode_front(unsigned mode) {
201
    switch (mode)
202
    {
203
        case PIPE_POLYGON_MODE_FILL:
204
            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
205
        case PIPE_POLYGON_MODE_LINE:
206
            return R300_GA_POLY_MODE_FRONT_PTYPE_LINE;
207
        case PIPE_POLYGON_MODE_POINT:
208
            return R300_GA_POLY_MODE_FRONT_PTYPE_POINT;
209
 
210
        default:
211
            fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
212
                __FUNCTION__);
213
            return R300_GA_POLY_MODE_FRONT_PTYPE_TRI;
214
    }
215
}
216
 
217
static INLINE uint32_t
218
r300_translate_polygon_mode_back(unsigned mode) {
219
    switch (mode)
220
    {
221
        case PIPE_POLYGON_MODE_FILL:
222
            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
223
        case PIPE_POLYGON_MODE_LINE:
224
            return R300_GA_POLY_MODE_BACK_PTYPE_LINE;
225
        case PIPE_POLYGON_MODE_POINT:
226
            return R300_GA_POLY_MODE_BACK_PTYPE_POINT;
227
 
228
        default:
229
            fprintf(stderr, "r300: Bad polygon mode %i in %s\n", mode,
230
                __FUNCTION__);
231
            return R300_GA_POLY_MODE_BACK_PTYPE_TRI;
232
    }
233
}
234
 
235
/* Texture sampler state. */
236
 
237
static INLINE uint32_t r300_translate_wrap(int wrap)
238
{
239
    switch (wrap) {
240
        case PIPE_TEX_WRAP_REPEAT:
241
            return R300_TX_REPEAT;
242
        case PIPE_TEX_WRAP_CLAMP:
243
            return R300_TX_CLAMP;
244
        case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
245
            return R300_TX_CLAMP_TO_EDGE;
246
        case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
247
            return R300_TX_CLAMP_TO_BORDER;
248
        case PIPE_TEX_WRAP_MIRROR_REPEAT:
249
            return R300_TX_REPEAT | R300_TX_MIRRORED;
250
        case PIPE_TEX_WRAP_MIRROR_CLAMP:
251
            return R300_TX_CLAMP | R300_TX_MIRRORED;
252
        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
253
            return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
254
        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
255
            return R300_TX_CLAMP_TO_BORDER | R300_TX_MIRRORED;
256
        default:
257
            fprintf(stderr, "r300: Unknown texture wrap %d", wrap);
258
            assert(0);
259
            return 0;
260
    }
261
}
262
 
263
static INLINE uint32_t r300_translate_tex_filters(int min, int mag, int mip,
264
                                                  boolean is_anisotropic)
265
{
266
    uint32_t retval = 0;
267
 
268
    switch (min) {
269
    case PIPE_TEX_FILTER_NEAREST:
270
        retval |= R300_TX_MIN_FILTER_NEAREST;
271
        break;
272
    case PIPE_TEX_FILTER_LINEAR:
273
        retval |= is_anisotropic ? R300_TX_MIN_FILTER_ANISO :
274
                                   R300_TX_MIN_FILTER_LINEAR;
275
        break;
276
    default:
277
        fprintf(stderr, "r300: Unknown texture filter %d\n", min);
278
        assert(0);
279
    }
280
 
281
    switch (mag) {
282
    case PIPE_TEX_FILTER_NEAREST:
283
        retval |= R300_TX_MAG_FILTER_NEAREST;
284
        break;
285
    case PIPE_TEX_FILTER_LINEAR:
286
        retval |= is_anisotropic ? R300_TX_MAG_FILTER_ANISO :
287
                                   R300_TX_MAG_FILTER_LINEAR;
288
        break;
289
    default:
290
        fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
291
        assert(0);
292
    }
293
 
294
    switch (mip) {
295
    case PIPE_TEX_MIPFILTER_NONE:
296
        retval |= R300_TX_MIN_FILTER_MIP_NONE;
297
        break;
298
    case PIPE_TEX_MIPFILTER_NEAREST:
299
        retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
300
        break;
301
    case PIPE_TEX_MIPFILTER_LINEAR:
302
        retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
303
        break;
304
    default:
305
        fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
306
        assert(0);
307
    }
308
 
309
    return retval;
310
}
311
 
312
static INLINE uint32_t r300_anisotropy(unsigned max_aniso)
313
{
314
    if (max_aniso >= 16) {
315
        return R300_TX_MAX_ANISO_16_TO_1;
316
    } else if (max_aniso >= 8) {
317
        return R300_TX_MAX_ANISO_8_TO_1;
318
    } else if (max_aniso >= 4) {
319
        return R300_TX_MAX_ANISO_4_TO_1;
320
    } else if (max_aniso >= 2) {
321
        return R300_TX_MAX_ANISO_2_TO_1;
322
    } else {
323
        return R300_TX_MAX_ANISO_1_TO_1;
324
    }
325
}
326
 
327
static INLINE uint32_t r500_anisotropy(unsigned max_aniso)
328
{
329
    if (!max_aniso) {
330
        return 0;
331
    }
332
    max_aniso -= 1;
333
 
334
    // Map the range [0, 15] to [0, 63].
335
    return R500_TX_MAX_ANISO(MIN2((unsigned)(max_aniso*4.2001), 63)) |
336
           R500_TX_ANISO_HIGH_QUALITY;
337
}
338
 
339
/* Translate pipe_formats into PSC vertex types. */
340
static INLINE uint16_t
341
r300_translate_vertex_data_type(enum pipe_format format) {
342
    uint32_t result = 0;
343
    const struct util_format_description *desc;
344
    unsigned i;
345
 
346
    desc = util_format_description(format);
347
 
348
    if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
349
        return R300_INVALID_FORMAT;
350
    }
351
 
352
    /* Find the first non-VOID channel. */
353
    for (i = 0; i < 4; i++) {
354
        if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
355
            break;
356
        }
357
    }
358
 
359
    switch (desc->channel[i].type) {
360
        /* Half-floats, floats, doubles */
361
        case UTIL_FORMAT_TYPE_FLOAT:
362
            switch (desc->channel[i].size) {
363
                case 16:
364
                    /* Supported only on RV350 and later. */
365
                    if (desc->nr_channels > 2) {
366
                        result = R300_DATA_TYPE_FLT16_4;
367
                    } else {
368
                        result = R300_DATA_TYPE_FLT16_2;
369
                    }
370
                    break;
371
                case 32:
372
                    result = R300_DATA_TYPE_FLOAT_1 + (desc->nr_channels - 1);
373
                    break;
374
                default:
375
                    return R300_INVALID_FORMAT;
376
            }
377
            break;
378
        /* Unsigned ints */
379
        case UTIL_FORMAT_TYPE_UNSIGNED:
380
        /* Signed ints */
381
        case UTIL_FORMAT_TYPE_SIGNED:
382
            switch (desc->channel[i].size) {
383
                case 8:
384
                    result = R300_DATA_TYPE_BYTE;
385
                    break;
386
                case 16:
387
                    if (desc->nr_channels > 2) {
388
                        result = R300_DATA_TYPE_SHORT_4;
389
                    } else {
390
                        result = R300_DATA_TYPE_SHORT_2;
391
                    }
392
                    break;
393
                default:
394
                    return R300_INVALID_FORMAT;
395
            }
396
            break;
397
        default:
398
            return R300_INVALID_FORMAT;
399
    }
400
 
401
    if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
402
        result |= R300_SIGNED;
403
    }
404
    if (desc->channel[i].normalized) {
405
        result |= R300_NORMALIZE;
406
    }
407
 
408
    return result;
409
}
410
 
411
static INLINE uint16_t
412
r300_translate_vertex_data_swizzle(enum pipe_format format) {
413
    const struct util_format_description *desc = util_format_description(format);
414
    unsigned i, swizzle = 0;
415
 
416
    assert(format);
417
 
418
    if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
419
        fprintf(stderr, "r300: Bad format %s in %s:%d\n",
420
            util_format_short_name(format), __FUNCTION__, __LINE__);
421
        return 0;
422
    }
423
 
424
    for (i = 0; i < desc->nr_channels; i++) {
425
        swizzle |=
426
            MIN2(desc->swizzle[i], R300_SWIZZLE_SELECT_FP_ONE) << (3*i);
427
    }
428
    /* Set (0,0,0,1) in unused components. */
429
    for (; i < 3; i++) {
430
        swizzle |= R300_SWIZZLE_SELECT_FP_ZERO << (3*i);
431
    }
432
    for (; i < 4; i++) {
433
        swizzle |= R300_SWIZZLE_SELECT_FP_ONE << (3*i);
434
    }
435
 
436
    return swizzle | (0xf << R300_WRITE_ENA_SHIFT);
437
}
438
 
439
#endif /* R300_STATE_INLINES_H */