r300_state.c revision a6314eb47f0c916c51362dfbd0f1db21e72745ee
1/*
2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
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#include "draw/draw_context.h"
25
26#include "util/u_framebuffer.h"
27#include "util/u_math.h"
28#include "util/u_mm.h"
29#include "util/u_memory.h"
30#include "util/u_pack_color.h"
31#include "util/u_transfer.h"
32
33#include "tgsi/tgsi_parse.h"
34
35#include "pipe/p_config.h"
36
37#include "r300_cb.h"
38#include "r300_context.h"
39#include "r300_emit.h"
40#include "r300_reg.h"
41#include "r300_screen.h"
42#include "r300_screen_buffer.h"
43#include "r300_state_inlines.h"
44#include "r300_fs.h"
45#include "r300_texture.h"
46#include "r300_vs.h"
47#include "r300_winsys.h"
48
49/* r300_state: Functions used to intialize state context by translating
50 * Gallium state objects into semi-native r300 state objects. */
51
52#define UPDATE_STATE(cso, atom) \
53    if (cso != atom.state) { \
54        atom.state = cso;    \
55        r300_mark_atom_dirty(r300, &(atom));   \
56    }
57
58static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA,
59                                            unsigned dstRGB, unsigned dstA)
60{
61    /* If the blend equation is ADD or REVERSE_SUBTRACT,
62     * SRC_ALPHA == 0, and the following state is set, the colorbuffer
63     * will not be changed.
64     * Notice that the dst factors are the src factors inverted. */
65    return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
66            srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
67            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
68           (srcA == PIPE_BLENDFACTOR_SRC_COLOR ||
69            srcA == PIPE_BLENDFACTOR_SRC_ALPHA ||
70            srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
71            srcA == PIPE_BLENDFACTOR_ZERO) &&
72           (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
73            dstRGB == PIPE_BLENDFACTOR_ONE) &&
74           (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
75            dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
76            dstA == PIPE_BLENDFACTOR_ONE);
77}
78
79static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA,
80                                            unsigned dstRGB, unsigned dstA)
81{
82    /* If the blend equation is ADD or REVERSE_SUBTRACT,
83     * SRC_ALPHA == 1, and the following state is set, the colorbuffer
84     * will not be changed.
85     * Notice that the dst factors are the src factors inverted. */
86    return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
87            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
88           (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
89            srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
90            srcA == PIPE_BLENDFACTOR_ZERO) &&
91           (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
92            dstRGB == PIPE_BLENDFACTOR_ONE) &&
93           (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
94            dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
95            dstA == PIPE_BLENDFACTOR_ONE);
96}
97
98static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA,
99                                            unsigned dstRGB, unsigned dstA)
100{
101    /* If the blend equation is ADD or REVERSE_SUBTRACT,
102     * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer
103     * will not be changed.
104     * Notice that the dst factors are the src factors inverted. */
105    return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
106            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
107           (srcA == PIPE_BLENDFACTOR_ZERO) &&
108           (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
109            dstRGB == PIPE_BLENDFACTOR_ONE) &&
110           (dstA == PIPE_BLENDFACTOR_ONE);
111}
112
113static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA,
114                                            unsigned dstRGB, unsigned dstA)
115{
116    /* If the blend equation is ADD or REVERSE_SUBTRACT,
117     * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer
118     * will not be changed.
119     * Notice that the dst factors are the src factors inverted. */
120    return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
121            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
122           (srcA == PIPE_BLENDFACTOR_ZERO) &&
123           (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
124            dstRGB == PIPE_BLENDFACTOR_ONE) &&
125           (dstA == PIPE_BLENDFACTOR_ONE);
126}
127
128static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA,
129                                                  unsigned dstRGB, unsigned dstA)
130{
131    /* If the blend equation is ADD or REVERSE_SUBTRACT,
132     * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set,
133     * the colorbuffer will not be changed.
134     * Notice that the dst factors are the src factors inverted. */
135    return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
136            srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
137            srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
138            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
139           (srcA == PIPE_BLENDFACTOR_SRC_COLOR ||
140            srcA == PIPE_BLENDFACTOR_SRC_ALPHA ||
141            srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE ||
142            srcA == PIPE_BLENDFACTOR_ZERO) &&
143           (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
144            dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
145            dstRGB == PIPE_BLENDFACTOR_ONE) &&
146           (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
147            dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
148            dstA == PIPE_BLENDFACTOR_ONE);
149}
150
151static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA,
152                                                  unsigned dstRGB, unsigned dstA)
153{
154    /* If the blend equation is ADD or REVERSE_SUBTRACT,
155     * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set,
156     * the colorbuffer will not be changed.
157     * Notice that the dst factors are the src factors inverted. */
158    return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
159            srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
160            srcRGB == PIPE_BLENDFACTOR_ZERO) &&
161           (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
162            srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
163            srcA == PIPE_BLENDFACTOR_ZERO) &&
164           (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR ||
165            dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
166            dstRGB == PIPE_BLENDFACTOR_ONE) &&
167           (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
168            dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
169            dstA == PIPE_BLENDFACTOR_ONE);
170}
171
172static unsigned bgra_cmask(unsigned mask)
173{
174    /* Gallium uses RGBA color ordering while R300 expects BGRA. */
175
176    return ((mask & PIPE_MASK_R) << 2) |
177           ((mask & PIPE_MASK_B) >> 2) |
178           (mask & (PIPE_MASK_G | PIPE_MASK_A));
179}
180
181/* Create a new blend state based on the CSO blend state.
182 *
183 * This encompasses alpha blending, logic/raster ops, and blend dithering. */
184static void* r300_create_blend_state(struct pipe_context* pipe,
185                                     const struct pipe_blend_state* state)
186{
187    struct r300_screen* r300screen = r300_screen(pipe->screen);
188    struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
189    uint32_t blend_control = 0;       /* R300_RB3D_CBLEND: 0x4e04 */
190    uint32_t alpha_blend_control = 0; /* R300_RB3D_ABLEND: 0x4e08 */
191    uint32_t color_channel_mask = 0;  /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */
192    uint32_t rop = 0;                 /* R300_RB3D_ROPCNTL: 0x4e18 */
193    uint32_t dither = 0;              /* R300_RB3D_DITHER_CTL: 0x4e50 */
194    CB_LOCALS;
195
196    if (state->rt[0].blend_enable)
197    {
198        unsigned eqRGB = state->rt[0].rgb_func;
199        unsigned srcRGB = state->rt[0].rgb_src_factor;
200        unsigned dstRGB = state->rt[0].rgb_dst_factor;
201
202        unsigned eqA = state->rt[0].alpha_func;
203        unsigned srcA = state->rt[0].alpha_src_factor;
204        unsigned dstA = state->rt[0].alpha_dst_factor;
205
206        /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha,
207         * this is just the crappy D3D naming */
208        blend_control = R300_ALPHA_BLEND_ENABLE |
209            r300_translate_blend_function(eqRGB) |
210            ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) |
211            ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT);
212
213        /* Optimization: some operations do not require the destination color.
214         *
215         * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled,
216         * otherwise blending gives incorrect results. It seems to be
217         * a hardware bug. */
218        if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN ||
219            eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX ||
220            dstRGB != PIPE_BLENDFACTOR_ZERO ||
221            dstA != PIPE_BLENDFACTOR_ZERO ||
222            srcRGB == PIPE_BLENDFACTOR_DST_COLOR ||
223            srcRGB == PIPE_BLENDFACTOR_DST_ALPHA ||
224            srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR ||
225            srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA ||
226            srcA == PIPE_BLENDFACTOR_DST_COLOR ||
227            srcA == PIPE_BLENDFACTOR_DST_ALPHA ||
228            srcA == PIPE_BLENDFACTOR_INV_DST_COLOR ||
229            srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA ||
230            srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) {
231            /* Enable reading from the colorbuffer. */
232            blend_control |= R300_READ_ENABLE;
233
234            if (r300screen->caps.is_r500) {
235                /* Optimization: Depending on incoming pixels, we can
236                 * conditionally disable the reading in hardware... */
237                if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN &&
238                    eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) {
239                    /* Disable reading if SRC_ALPHA == 0. */
240                    if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA ||
241                         dstRGB == PIPE_BLENDFACTOR_ZERO) &&
242                        (dstA == PIPE_BLENDFACTOR_SRC_COLOR ||
243                         dstA == PIPE_BLENDFACTOR_SRC_ALPHA ||
244                         dstA == PIPE_BLENDFACTOR_ZERO)) {
245                         blend_control |= R500_SRC_ALPHA_0_NO_READ;
246                    }
247
248                    /* Disable reading if SRC_ALPHA == 1. */
249                    if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
250                         dstRGB == PIPE_BLENDFACTOR_ZERO) &&
251                        (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR ||
252                         dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA ||
253                         dstA == PIPE_BLENDFACTOR_ZERO)) {
254                         blend_control |= R500_SRC_ALPHA_1_NO_READ;
255                    }
256                }
257            }
258        }
259
260        /* Optimization: discard pixels which don't change the colorbuffer.
261         *
262         * The code below is non-trivial and some math is involved.
263         *
264         * Discarding pixels must be disabled when FP16 AA is enabled.
265         * This is a hardware bug. Also, this implementation wouldn't work
266         * with FP blending enabled and equation clamping disabled.
267         *
268         * Equations other than ADD are rarely used and therefore won't be
269         * optimized. */
270        if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) &&
271            (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) {
272            /* ADD: X+Y
273             * REVERSE_SUBTRACT: Y-X
274             *
275             * The idea is:
276             * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1,
277             * then CB will not be changed.
278             *
279             * Given the srcFactor and dstFactor variables, we can derive
280             * what src and dst should be equal to and discard appropriate
281             * pixels.
282             */
283            if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) {
284                blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0;
285            } else if (blend_discard_if_src_alpha_1(srcRGB, srcA,
286                                                    dstRGB, dstA)) {
287                blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1;
288            } else if (blend_discard_if_src_color_0(srcRGB, srcA,
289                                                    dstRGB, dstA)) {
290                blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0;
291            } else if (blend_discard_if_src_color_1(srcRGB, srcA,
292                                                    dstRGB, dstA)) {
293                blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1;
294            } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA,
295                                                          dstRGB, dstA)) {
296                blend_control |=
297                    R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0;
298            } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA,
299                                                          dstRGB, dstA)) {
300                blend_control |=
301                    R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1;
302            }
303        }
304
305        /* separate alpha */
306        if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) {
307            blend_control |= R300_SEPARATE_ALPHA_ENABLE;
308            alpha_blend_control =
309                r300_translate_blend_function(eqA) |
310                (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) |
311                (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT);
312        }
313    }
314
315    /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
316    if (state->logicop_enable) {
317        rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
318                (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
319    }
320
321    /* Color channel masks for all MRTs. */
322    color_channel_mask = bgra_cmask(state->rt[0].colormask);
323    if (r300screen->caps.is_r500 && state->independent_blend_enable) {
324        if (state->rt[1].blend_enable) {
325            color_channel_mask |= bgra_cmask(state->rt[1].colormask) << 4;
326        }
327        if (state->rt[2].blend_enable) {
328            color_channel_mask |= bgra_cmask(state->rt[2].colormask) << 8;
329        }
330        if (state->rt[3].blend_enable) {
331            color_channel_mask |= bgra_cmask(state->rt[3].colormask) << 12;
332        }
333    }
334
335    /* Neither fglrx nor classic r300 ever set this, regardless of dithering
336     * state. Since it's an optional implementation detail, we can leave it
337     * out and never dither.
338     *
339     * This could be revisited if we ever get quality or conformance hints.
340     *
341    if (state->dither) {
342        dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
343                        R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
344    }
345    */
346
347    /* Build a command buffer. */
348    BEGIN_CB(blend->cb, 8);
349    OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
350    OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
351    OUT_CB(blend_control);
352    OUT_CB(alpha_blend_control);
353    OUT_CB(color_channel_mask);
354    OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
355    END_CB;
356
357    /* The same as above, but with no colorbuffer reads and writes. */
358    BEGIN_CB(blend->cb_no_readwrite, 8);
359    OUT_CB_REG(R300_RB3D_ROPCNTL, rop);
360    OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3);
361    OUT_CB(0);
362    OUT_CB(0);
363    OUT_CB(0);
364    OUT_CB_REG(R300_RB3D_DITHER_CTL, dither);
365    END_CB;
366
367    return (void*)blend;
368}
369
370/* Bind blend state. */
371static void r300_bind_blend_state(struct pipe_context* pipe,
372                                  void* state)
373{
374    struct r300_context* r300 = r300_context(pipe);
375
376    UPDATE_STATE(state, r300->blend_state);
377}
378
379/* Free blend state. */
380static void r300_delete_blend_state(struct pipe_context* pipe,
381                                    void* state)
382{
383    FREE(state);
384}
385
386/* Convert float to 10bit integer */
387static unsigned float_to_fixed10(float f)
388{
389    return CLAMP((unsigned)(f * 1023.9f), 0, 1023);
390}
391
392/* Set blend color.
393 * Setup both R300 and R500 registers, figure out later which one to write. */
394static void r300_set_blend_color(struct pipe_context* pipe,
395                                 const struct pipe_blend_color* color)
396{
397    struct r300_context* r300 = r300_context(pipe);
398    struct r300_blend_color_state* state =
399        (struct r300_blend_color_state*)r300->blend_color_state.state;
400    CB_LOCALS;
401
402    if (r300->screen->caps.is_r500) {
403        /* XXX if FP16 blending is enabled, we should use the FP16 format */
404        BEGIN_CB(state->cb, 3);
405        OUT_CB_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2);
406        OUT_CB(float_to_fixed10(color->color[0]) |
407               (float_to_fixed10(color->color[3]) << 16));
408        OUT_CB(float_to_fixed10(color->color[2]) |
409               (float_to_fixed10(color->color[1]) << 16));
410        END_CB;
411    } else {
412        union util_color uc;
413        util_pack_color(color->color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
414
415        BEGIN_CB(state->cb, 2);
416        OUT_CB_REG(R300_RB3D_BLEND_COLOR, uc.ui);
417        END_CB;
418    }
419
420    r300_mark_atom_dirty(r300, &r300->blend_color_state);
421}
422
423static void r300_set_clip_state(struct pipe_context* pipe,
424                                const struct pipe_clip_state* state)
425{
426    struct r300_context* r300 = r300_context(pipe);
427    struct r300_clip_state *clip =
428            (struct r300_clip_state*)r300->clip_state.state;
429    CB_LOCALS;
430
431    clip->clip = *state;
432
433    if (r300->screen->caps.has_tcl) {
434        r300->clip_state.size = 2 + !!state->nr * 3 + state->nr * 4;
435
436        BEGIN_CB(clip->cb, r300->clip_state.size);
437        if (state->nr) {
438           OUT_CB_REG(R300_VAP_PVS_VECTOR_INDX_REG,
439                   (r300->screen->caps.is_r500 ?
440                    R500_PVS_UCP_START : R300_PVS_UCP_START));
441           OUT_CB_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, state->nr * 4);
442           OUT_CB_TABLE(state->ucp, state->nr * 4);
443        }
444        OUT_CB_REG(R300_VAP_CLIP_CNTL, ((1 << state->nr) - 1) |
445                   R300_PS_UCP_MODE_CLIP_AS_TRIFAN);
446        END_CB;
447
448        r300_mark_atom_dirty(r300, &r300->clip_state);
449    } else {
450        draw_set_clip_state(r300->draw, state);
451    }
452}
453
454static void
455r300_set_sample_mask(struct pipe_context *pipe,
456                     unsigned sample_mask)
457{
458}
459
460
461/* Create a new depth, stencil, and alpha state based on the CSO dsa state.
462 *
463 * This contains the depth buffer, stencil buffer, alpha test, and such.
464 * On the Radeon, depth and stencil buffer setup are intertwined, which is
465 * the reason for some of the strange-looking assignments across registers. */
466static void*
467        r300_create_dsa_state(struct pipe_context* pipe,
468                              const struct pipe_depth_stencil_alpha_state* state)
469{
470    struct r300_capabilities *caps = &r300_screen(pipe->screen)->caps;
471    struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
472    CB_LOCALS;
473
474    dsa->dsa = *state;
475
476    /* Depth test setup. - separate write mask depth for decomp flush */
477    if (state->depth.writemask) {
478        dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
479    }
480
481    if (state->depth.enabled) {
482        dsa->z_buffer_control |= R300_Z_ENABLE;
483
484        dsa->z_stencil_control |=
485            (r300_translate_depth_stencil_function(state->depth.func) <<
486                R300_Z_FUNC_SHIFT);
487    }
488
489    /* Stencil buffer setup. */
490    if (state->stencil[0].enabled) {
491        dsa->z_buffer_control |= R300_STENCIL_ENABLE;
492        dsa->z_stencil_control |=
493            (r300_translate_depth_stencil_function(state->stencil[0].func) <<
494                R300_S_FRONT_FUNC_SHIFT) |
495            (r300_translate_stencil_op(state->stencil[0].fail_op) <<
496                R300_S_FRONT_SFAIL_OP_SHIFT) |
497            (r300_translate_stencil_op(state->stencil[0].zpass_op) <<
498                R300_S_FRONT_ZPASS_OP_SHIFT) |
499            (r300_translate_stencil_op(state->stencil[0].zfail_op) <<
500                R300_S_FRONT_ZFAIL_OP_SHIFT);
501
502        dsa->stencil_ref_mask =
503                (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
504                (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
505
506        if (state->stencil[1].enabled) {
507            dsa->two_sided = TRUE;
508
509            dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
510            dsa->z_stencil_control |=
511            (r300_translate_depth_stencil_function(state->stencil[1].func) <<
512                R300_S_BACK_FUNC_SHIFT) |
513            (r300_translate_stencil_op(state->stencil[1].fail_op) <<
514                R300_S_BACK_SFAIL_OP_SHIFT) |
515            (r300_translate_stencil_op(state->stencil[1].zpass_op) <<
516                R300_S_BACK_ZPASS_OP_SHIFT) |
517            (r300_translate_stencil_op(state->stencil[1].zfail_op) <<
518                R300_S_BACK_ZFAIL_OP_SHIFT);
519
520            dsa->stencil_ref_bf =
521                (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
522                (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
523
524            if (caps->is_r500) {
525                dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK;
526            } else {
527                dsa->two_sided_stencil_ref =
528                  (state->stencil[0].valuemask != state->stencil[1].valuemask ||
529                   state->stencil[0].writemask != state->stencil[1].writemask);
530            }
531        }
532    }
533
534    /* Alpha test setup. */
535    if (state->alpha.enabled) {
536        dsa->alpha_function =
537            r300_translate_alpha_function(state->alpha.func) |
538            R300_FG_ALPHA_FUNC_ENABLE;
539
540        /* We could use 10bit alpha ref but who needs that? */
541        dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value);
542
543        if (caps->is_r500)
544            dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT;
545    }
546
547    BEGIN_CB(&dsa->cb_begin, 8);
548    OUT_CB_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function);
549    OUT_CB_REG_SEQ(R300_ZB_CNTL, 3);
550    OUT_CB(dsa->z_buffer_control);
551    OUT_CB(dsa->z_stencil_control);
552    OUT_CB(dsa->stencil_ref_mask);
553    OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, dsa->stencil_ref_bf);
554    END_CB;
555
556    BEGIN_CB(dsa->cb_no_readwrite, 8);
557    OUT_CB_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function);
558    OUT_CB_REG_SEQ(R300_ZB_CNTL, 3);
559    OUT_CB(0);
560    OUT_CB(0);
561    OUT_CB(0);
562    OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, 0);
563    END_CB;
564
565    return (void*)dsa;
566}
567
568static void r300_dsa_inject_stencilref(struct r300_context *r300)
569{
570    struct r300_dsa_state *dsa =
571            (struct r300_dsa_state*)r300->dsa_state.state;
572
573    if (!dsa)
574        return;
575
576    dsa->stencil_ref_mask =
577        (dsa->stencil_ref_mask & ~R300_STENCILREF_MASK) |
578        r300->stencil_ref.ref_value[0];
579    dsa->stencil_ref_bf =
580        (dsa->stencil_ref_bf & ~R300_STENCILREF_MASK) |
581        r300->stencil_ref.ref_value[1];
582}
583
584/* Bind DSA state. */
585static void r300_bind_dsa_state(struct pipe_context* pipe,
586                                void* state)
587{
588    struct r300_context* r300 = r300_context(pipe);
589
590    if (!state) {
591        return;
592    }
593
594    UPDATE_STATE(state, r300->dsa_state);
595
596    r300_mark_atom_dirty(r300, &r300->hyperz_state); /* Will be updated before the emission. */
597    r300_dsa_inject_stencilref(r300);
598}
599
600/* Free DSA state. */
601static void r300_delete_dsa_state(struct pipe_context* pipe,
602                                  void* state)
603{
604    FREE(state);
605}
606
607static void r300_set_stencil_ref(struct pipe_context* pipe,
608                                 const struct pipe_stencil_ref* sr)
609{
610    struct r300_context* r300 = r300_context(pipe);
611
612    r300->stencil_ref = *sr;
613
614    r300_dsa_inject_stencilref(r300);
615    r300_mark_atom_dirty(r300, &r300->dsa_state);
616}
617
618static void r300_tex_set_tiling_flags(struct r300_context *r300,
619                                      struct r300_resource *tex,
620                                      unsigned level)
621{
622    /* Check if the macrotile flag needs to be changed.
623     * Skip changing the flags otherwise. */
624    if (tex->tex.macrotile[tex->surface_level] !=
625        tex->tex.macrotile[level]) {
626        r300->rws->buffer_set_tiling(tex->buf, r300->cs,
627                tex->tex.microtile, tex->tex.macrotile[level],
628                tex->tex.stride_in_bytes[0]);
629
630        tex->surface_level = level;
631    }
632}
633
634/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */
635static void r300_fb_set_tiling_flags(struct r300_context *r300,
636                               const struct pipe_framebuffer_state *state)
637{
638    unsigned i;
639
640    /* Set tiling flags for new surfaces. */
641    for (i = 0; i < state->nr_cbufs; i++) {
642        r300_tex_set_tiling_flags(r300,
643                                  r300_resource(state->cbufs[i]->texture),
644                                  state->cbufs[i]->u.tex.level);
645    }
646    if (state->zsbuf) {
647        r300_tex_set_tiling_flags(r300,
648                                  r300_resource(state->zsbuf->texture),
649                                  state->zsbuf->u.tex.level);
650    }
651}
652
653static void r300_print_fb_surf_info(struct pipe_surface *surf, unsigned index,
654                                    const char *binding)
655{
656    struct pipe_resource *tex = surf->texture;
657    struct r300_resource *rtex = r300_resource(tex);
658
659    fprintf(stderr,
660            "r300:   %s[%i] Dim: %ix%i, Firstlayer: %i, "
661            "Lastlayer: %i, Level: %i, Format: %s\n"
662
663            "r300:     TEX: Macro: %s, Micro: %s, Pitch: %i, "
664            "Dim: %ix%ix%i, LastLevel: %i, Format: %s\n",
665
666            binding, index, surf->width, surf->height,
667            surf->u.tex.first_layer, surf->u.tex.last_layer, surf->u.tex.level,
668            util_format_short_name(surf->format),
669
670            rtex->tex.macrotile[0] ? "YES" : " NO",
671            rtex->tex.microtile ? "YES" : " NO",
672            rtex->tex.stride_in_pixels[0],
673            tex->width0, tex->height0, tex->depth0,
674            tex->last_level, util_format_short_name(tex->format));
675}
676
677void r300_mark_fb_state_dirty(struct r300_context *r300,
678                              enum r300_fb_state_change change)
679{
680    struct pipe_framebuffer_state *state = r300->fb_state.state;
681    boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
682
683    r300_mark_atom_dirty(r300, &r300->gpu_flush);
684    r300_mark_atom_dirty(r300, &r300->fb_state);
685
686    /* What is marked as dirty depends on the enum r300_fb_state_change. */
687    if (change == R300_CHANGED_FB_STATE) {
688        r300_mark_atom_dirty(r300, &r300->aa_state);
689    }
690
691    if (change == R300_CHANGED_FB_STATE ||
692        change == R300_CHANGED_HYPERZ_FLAG) {
693        r300_mark_atom_dirty(r300, &r300->hyperz_state);
694    }
695
696    if (change == R300_CHANGED_FB_STATE ||
697        change == R300_CHANGED_MULTIWRITE) {
698        r300_mark_atom_dirty(r300, &r300->fb_state_pipelined);
699    }
700
701    /* Now compute the fb_state atom size. */
702    r300->fb_state.size = 2 + (8 * state->nr_cbufs);
703
704    if (r300->cbzb_clear)
705        r300->fb_state.size += 10;
706    else if (state->zsbuf) {
707        r300->fb_state.size += 10;
708        if (can_hyperz)
709            r300->fb_state.size += 8;
710    }
711
712    /* The size of the rest of atoms stays the same. */
713}
714
715static void
716r300_set_framebuffer_state(struct pipe_context* pipe,
717                           const struct pipe_framebuffer_state* state)
718{
719    struct r300_context* r300 = r300_context(pipe);
720    struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
721    struct pipe_framebuffer_state *old_state = r300->fb_state.state;
722    unsigned max_width, max_height, i;
723    uint32_t zbuffer_bpp = 0;
724
725    if (r300->screen->caps.is_r500) {
726        max_width = max_height = 4096;
727    } else if (r300->screen->caps.is_r400) {
728        max_width = max_height = 4021;
729    } else {
730        max_width = max_height = 2560;
731    }
732
733    if (state->width > max_width || state->height > max_height) {
734        fprintf(stderr, "r300: Implementation error: Render targets are too "
735        "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__);
736        return;
737    }
738
739    if (old_state->zsbuf && r300->zmask_in_use && !r300->hyperz_locked) {
740        /* There is a zmask in use, what are we gonna do? */
741        if (state->zsbuf) {
742            if (!pipe_surface_equal(old_state->zsbuf, state->zsbuf)) {
743                /* Decompress the currently bound zbuffer before we bind another one. */
744                r300_decompress_zmask(r300);
745                r300->hiz_in_use = FALSE;
746            }
747        } else {
748            /* We don't bind another zbuffer, so lock the current one. */
749            r300->hyperz_locked = TRUE;
750            pipe_surface_reference(&r300->locked_zbuffer, old_state->zsbuf);
751        }
752    } else if (r300->hyperz_locked && r300->locked_zbuffer) {
753        /* We have a locked zbuffer now, what are we gonna do? */
754        if (state->zsbuf) {
755            if (!pipe_surface_equal(r300->locked_zbuffer, state->zsbuf)) {
756                /* We are binding some other zbuffer, so decompress the locked one,
757                 * it gets unlocked automatically. */
758                r300_decompress_zmask_locked_unsafe(r300);
759                r300->hiz_in_use = FALSE;
760            } else {
761                /* We are binding the locked zbuffer again, so unlock it. */
762                r300->hyperz_locked = FALSE;
763            }
764        }
765    }
766
767    /* If nr_cbufs is changed from zero to non-zero or vice versa... */
768    if (!!old_state->nr_cbufs != !!state->nr_cbufs) {
769        r300_mark_atom_dirty(r300, &r300->blend_state);
770    }
771    /* If zsbuf is set from NULL to non-NULL or vice versa.. */
772    if (!!old_state->zsbuf != !!state->zsbuf) {
773        r300_mark_atom_dirty(r300, &r300->dsa_state);
774    }
775
776    /* The tiling flags are dependent on the surface miplevel, unfortunately. */
777    r300_fb_set_tiling_flags(r300, state);
778
779    util_copy_framebuffer_state(r300->fb_state.state, state);
780
781    if (!r300->hyperz_locked) {
782        pipe_surface_reference(&r300->locked_zbuffer, NULL);
783    }
784
785    r300_mark_fb_state_dirty(r300, R300_CHANGED_FB_STATE);
786
787    if (state->zsbuf) {
788        switch (util_format_get_blocksize(state->zsbuf->texture->format)) {
789        case 2:
790            zbuffer_bpp = 16;
791            break;
792        case 4:
793            zbuffer_bpp = 24;
794            break;
795        }
796
797        /* Polygon offset depends on the zbuffer bit depth. */
798        if (r300->zbuffer_bpp != zbuffer_bpp) {
799            r300->zbuffer_bpp = zbuffer_bpp;
800
801            if (r300->polygon_offset_enabled)
802                r300_mark_atom_dirty(r300, &r300->rs_state);
803        }
804    }
805
806    /* Set up AA config. */
807    if (state->nr_cbufs && state->cbufs[0]->texture->nr_samples > 1) {
808        aa->aa_config = R300_GB_AA_CONFIG_AA_ENABLE;
809
810        switch (state->cbufs[0]->texture->nr_samples) {
811        case 2:
812            aa->aa_config |= R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_2;
813            break;
814        case 3:
815            aa->aa_config |= R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_3;
816            break;
817        case 4:
818            aa->aa_config |= R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_4;
819            break;
820        case 6:
821            aa->aa_config |= R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_6;
822            break;
823        }
824    } else {
825        aa->aa_config = 0;
826    }
827
828    if (DBG_ON(r300, DBG_FB)) {
829        fprintf(stderr, "r300: set_framebuffer_state:\n");
830        for (i = 0; i < state->nr_cbufs; i++) {
831            r300_print_fb_surf_info(state->cbufs[i], i, "CB");
832        }
833        if (state->zsbuf) {
834            r300_print_fb_surf_info(state->zsbuf, 0, "ZB");
835        }
836    }
837}
838
839/* Create fragment shader state. */
840static void* r300_create_fs_state(struct pipe_context* pipe,
841                                  const struct pipe_shader_state* shader)
842{
843    struct r300_fragment_shader* fs = NULL;
844
845    fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
846
847    /* Copy state directly into shader. */
848    fs->state = *shader;
849    fs->state.tokens = tgsi_dup_tokens(shader->tokens);
850
851    return (void*)fs;
852}
853
854void r300_mark_fs_code_dirty(struct r300_context *r300)
855{
856    struct r300_fragment_shader* fs = r300_fs(r300);
857
858    r300_mark_atom_dirty(r300, &r300->fs);
859    r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
860    r300_mark_atom_dirty(r300, &r300->fs_constants);
861    r300->fs.size = fs->shader->cb_code_size;
862
863    if (r300->screen->caps.is_r500) {
864        r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 7;
865        r300->fs_constants.size = fs->shader->externals_count * 4 + 3;
866    } else {
867        r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 5;
868        r300->fs_constants.size = fs->shader->externals_count * 4 + 1;
869    }
870
871    ((struct r300_constant_buffer*)r300->fs_constants.state)->remap_table =
872            fs->shader->code.constants_remap_table;
873}
874
875/* Bind fragment shader state. */
876static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
877{
878    struct r300_context* r300 = r300_context(pipe);
879    struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
880    struct pipe_framebuffer_state *fb = r300->fb_state.state;
881    boolean last_multi_write;
882
883    if (fs == NULL) {
884        r300->fs.state = NULL;
885        return;
886    }
887
888    last_multi_write = r300_fragment_shader_writes_all(r300_fs(r300));
889
890    r300->fs.state = fs;
891    r300_pick_fragment_shader(r300);
892    r300_mark_fs_code_dirty(r300);
893
894    if (fb->nr_cbufs > 1 &&
895        last_multi_write != r300_fragment_shader_writes_all(fs)) {
896        r300_mark_fb_state_dirty(r300, R300_CHANGED_MULTIWRITE);
897    }
898
899    r300_mark_atom_dirty(r300, &r300->rs_block_state); /* Will be updated before the emission. */
900}
901
902/* Delete fragment shader state. */
903static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
904{
905    struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader;
906    struct r300_fragment_shader_code *tmp, *ptr = fs->first;
907
908    while (ptr) {
909        tmp = ptr;
910        ptr = ptr->next;
911        rc_constants_destroy(&tmp->code.constants);
912        FREE(tmp->cb_code);
913        FREE(tmp);
914    }
915    FREE((void*)fs->state.tokens);
916    FREE(shader);
917}
918
919static void r300_set_polygon_stipple(struct pipe_context* pipe,
920                                     const struct pipe_poly_stipple* state)
921{
922    /* XXX no idea how to set this up, but not terribly important */
923}
924
925/* Create a new rasterizer state based on the CSO rasterizer state.
926 *
927 * This is a very large chunk of state, and covers most of the graphics
928 * backend (GB), geometry assembly (GA), and setup unit (SU) blocks.
929 *
930 * In a not entirely unironic sidenote, this state has nearly nothing to do
931 * with the actual block on the Radeon called the rasterizer (RS). */
932static void* r300_create_rs_state(struct pipe_context* pipe,
933                                  const struct pipe_rasterizer_state* state)
934{
935    struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
936    float psiz;
937    uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
938    uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
939    uint32_t point_minmax;          /* R300_GA_POINT_MINMAX: 0x4230 */
940    uint32_t line_control;          /* R300_GA_LINE_CNTL: 0x4234 */
941    uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */
942    uint32_t cull_mode;             /* R300_SU_CULL_MODE: 0x42b8 */
943    uint32_t line_stipple_config;   /* R300_GA_LINE_STIPPLE_CONFIG: 0x4328 */
944    uint32_t line_stipple_value;    /* R300_GA_LINE_STIPPLE_VALUE: 0x4260 */
945    uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
946    uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
947
948    /* Point sprites texture coordinates, 0: lower left, 1: upper right */
949    float point_texcoord_left = 0;  /* R300_GA_POINT_S0: 0x4200 */
950    float point_texcoord_bottom = 0;/* R300_GA_POINT_T0: 0x4204 */
951    float point_texcoord_right = 1; /* R300_GA_POINT_S1: 0x4208 */
952    float point_texcoord_top = 0;   /* R300_GA_POINT_T1: 0x420c */
953    CB_LOCALS;
954
955    /* Copy rasterizer state. */
956    rs->rs = *state;
957    rs->rs_draw = *state;
958
959    rs->rs.sprite_coord_enable = state->point_quad_rasterization *
960                                 state->sprite_coord_enable;
961
962    /* Override some states for Draw. */
963    rs->rs_draw.sprite_coord_enable = 0; /* We can do this in HW. */
964
965#ifdef PIPE_ARCH_LITTLE_ENDIAN
966    vap_control_status = R300_VC_NO_SWAP;
967#else
968    vap_control_status = R300_VC_32BIT_SWAP;
969#endif
970
971    /* If no TCL engine is present, turn off the HW TCL. */
972    if (!r300_screen(pipe->screen)->caps.has_tcl) {
973        vap_control_status |= R300_VAP_TCL_BYPASS;
974    }
975
976    /* Point size width and height. */
977    point_size =
978        pack_float_16_6x(state->point_size) |
979        (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
980
981    /* Point size clamping. */
982    if (state->point_size_per_vertex) {
983        /* Per-vertex point size.
984         * Clamp to [0, max FB size] */
985        psiz = pipe->screen->get_paramf(pipe->screen,
986                                        PIPE_CAP_MAX_POINT_WIDTH);
987        point_minmax =
988            pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT;
989    } else {
990        /* We cannot disable the point-size vertex output,
991         * so clamp it. */
992        psiz = state->point_size;
993        point_minmax =
994            (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MIN_SHIFT) |
995            (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT);
996    }
997
998    /* Line control. */
999    line_control = pack_float_16_6x(state->line_width) |
1000        R300_GA_LINE_CNTL_END_TYPE_COMP;
1001
1002    /* Enable polygon mode */
1003    polygon_mode = 0;
1004    if (state->fill_front != PIPE_POLYGON_MODE_FILL ||
1005        state->fill_back != PIPE_POLYGON_MODE_FILL) {
1006        polygon_mode = R300_GA_POLY_MODE_DUAL;
1007    }
1008
1009    /* Front face */
1010    if (state->front_ccw)
1011        cull_mode = R300_FRONT_FACE_CCW;
1012    else
1013        cull_mode = R300_FRONT_FACE_CW;
1014
1015    /* Polygon offset */
1016    polygon_offset_enable = 0;
1017    if (util_get_offset(state, state->fill_front)) {
1018       polygon_offset_enable |= R300_FRONT_ENABLE;
1019    }
1020    if (util_get_offset(state, state->fill_back)) {
1021       polygon_offset_enable |= R300_BACK_ENABLE;
1022    }
1023
1024    rs->polygon_offset_enable = polygon_offset_enable != 0;
1025
1026    /* Polygon mode */
1027    if (polygon_mode) {
1028       polygon_mode |=
1029          r300_translate_polygon_mode_front(state->fill_front);
1030       polygon_mode |=
1031          r300_translate_polygon_mode_back(state->fill_back);
1032    }
1033
1034    if (state->cull_face & PIPE_FACE_FRONT) {
1035        cull_mode |= R300_CULL_FRONT;
1036    }
1037    if (state->cull_face & PIPE_FACE_BACK) {
1038        cull_mode |= R300_CULL_BACK;
1039    }
1040
1041    if (state->line_stipple_enable) {
1042        line_stipple_config =
1043            R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
1044            (fui((float)state->line_stipple_factor) &
1045                R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
1046        /* XXX this might need to be scaled up */
1047        line_stipple_value = state->line_stipple_pattern;
1048    } else {
1049        line_stipple_config = 0;
1050        line_stipple_value = 0;
1051    }
1052
1053    if (state->flatshade) {
1054        rs->color_control = R300_SHADE_MODEL_FLAT;
1055    } else {
1056        rs->color_control = R300_SHADE_MODEL_SMOOTH;
1057    }
1058
1059    clip_rule = state->scissor ? 0xAAAA : 0xFFFF;
1060
1061    /* Point sprites coord mode */
1062    if (rs->rs.sprite_coord_enable) {
1063        switch (state->sprite_coord_mode) {
1064            case PIPE_SPRITE_COORD_UPPER_LEFT:
1065                point_texcoord_top = 0.0f;
1066                point_texcoord_bottom = 1.0f;
1067                break;
1068            case PIPE_SPRITE_COORD_LOWER_LEFT:
1069                point_texcoord_top = 1.0f;
1070                point_texcoord_bottom = 0.0f;
1071                break;
1072        }
1073    }
1074
1075    /* Build the main command buffer. */
1076    BEGIN_CB(rs->cb_main, RS_STATE_MAIN_SIZE);
1077    OUT_CB_REG(R300_VAP_CNTL_STATUS, vap_control_status);
1078    OUT_CB_REG(R300_GA_POINT_SIZE, point_size);
1079    OUT_CB_REG_SEQ(R300_GA_POINT_MINMAX, 2);
1080    OUT_CB(point_minmax);
1081    OUT_CB(line_control);
1082    OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_ENABLE, 2);
1083    OUT_CB(polygon_offset_enable);
1084    rs->cull_mode_index = 9;
1085    OUT_CB(cull_mode);
1086    OUT_CB_REG(R300_GA_LINE_STIPPLE_CONFIG, line_stipple_config);
1087    OUT_CB_REG(R300_GA_LINE_STIPPLE_VALUE, line_stipple_value);
1088    OUT_CB_REG(R300_GA_POLY_MODE, polygon_mode);
1089    OUT_CB_REG(R300_SC_CLIP_RULE, clip_rule);
1090    OUT_CB_REG_SEQ(R300_GA_POINT_S0, 4);
1091    OUT_CB_32F(point_texcoord_left);
1092    OUT_CB_32F(point_texcoord_bottom);
1093    OUT_CB_32F(point_texcoord_right);
1094    OUT_CB_32F(point_texcoord_top);
1095    END_CB;
1096
1097    /* Build the two command buffers for polygon offset setup. */
1098    if (polygon_offset_enable) {
1099        float scale = state->offset_scale * 12;
1100        float offset = state->offset_units * 4;
1101
1102        BEGIN_CB(rs->cb_poly_offset_zb16, 5);
1103        OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 4);
1104        OUT_CB_32F(scale);
1105        OUT_CB_32F(offset);
1106        OUT_CB_32F(scale);
1107        OUT_CB_32F(offset);
1108        END_CB;
1109
1110        offset = state->offset_units * 2;
1111
1112        BEGIN_CB(rs->cb_poly_offset_zb24, 5);
1113        OUT_CB_REG_SEQ(R300_SU_POLY_OFFSET_FRONT_SCALE, 4);
1114        OUT_CB_32F(scale);
1115        OUT_CB_32F(offset);
1116        OUT_CB_32F(scale);
1117        OUT_CB_32F(offset);
1118        END_CB;
1119    }
1120
1121    return (void*)rs;
1122}
1123
1124/* Bind rasterizer state. */
1125static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
1126{
1127    struct r300_context* r300 = r300_context(pipe);
1128    struct r300_rs_state* rs = (struct r300_rs_state*)state;
1129    int last_sprite_coord_enable = r300->sprite_coord_enable;
1130    boolean last_two_sided_color = r300->two_sided_color;
1131
1132    if (r300->draw && rs) {
1133        draw_set_rasterizer_state(r300->draw, &rs->rs_draw, state);
1134    }
1135
1136    if (rs) {
1137        r300->polygon_offset_enabled = rs->polygon_offset_enable;
1138        r300->sprite_coord_enable = rs->rs.sprite_coord_enable;
1139        r300->two_sided_color = rs->rs.light_twoside;
1140    } else {
1141        r300->polygon_offset_enabled = FALSE;
1142        r300->sprite_coord_enable = 0;
1143        r300->two_sided_color = FALSE;
1144    }
1145
1146    UPDATE_STATE(state, r300->rs_state);
1147    r300->rs_state.size = RS_STATE_MAIN_SIZE + (r300->polygon_offset_enabled ? 5 : 0);
1148
1149    if (last_sprite_coord_enable != r300->sprite_coord_enable ||
1150        last_two_sided_color != r300->two_sided_color) {
1151        r300_mark_atom_dirty(r300, &r300->rs_block_state);
1152    }
1153}
1154
1155/* Free rasterizer state. */
1156static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
1157{
1158    FREE(state);
1159}
1160
1161static void*
1162        r300_create_sampler_state(struct pipe_context* pipe,
1163                                  const struct pipe_sampler_state* state)
1164{
1165    struct r300_context* r300 = r300_context(pipe);
1166    struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
1167    boolean is_r500 = r300->screen->caps.is_r500;
1168    int lod_bias;
1169
1170    sampler->state = *state;
1171
1172    /* r300 doesn't handle CLAMP and MIRROR_CLAMP correctly when either MAG
1173     * or MIN filter is NEAREST. Since texwrap produces same results
1174     * for CLAMP and CLAMP_TO_EDGE, we use them instead. */
1175    if (sampler->state.min_img_filter == PIPE_TEX_FILTER_NEAREST ||
1176        sampler->state.mag_img_filter == PIPE_TEX_FILTER_NEAREST) {
1177        /* Wrap S. */
1178        if (sampler->state.wrap_s == PIPE_TEX_WRAP_CLAMP)
1179            sampler->state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1180        else if (sampler->state.wrap_s == PIPE_TEX_WRAP_MIRROR_CLAMP)
1181            sampler->state.wrap_s = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1182
1183        /* Wrap T. */
1184        if (sampler->state.wrap_t == PIPE_TEX_WRAP_CLAMP)
1185            sampler->state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1186        else if (sampler->state.wrap_t == PIPE_TEX_WRAP_MIRROR_CLAMP)
1187            sampler->state.wrap_t = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1188
1189        /* Wrap R. */
1190        if (sampler->state.wrap_r == PIPE_TEX_WRAP_CLAMP)
1191            sampler->state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
1192        else if (sampler->state.wrap_r == PIPE_TEX_WRAP_MIRROR_CLAMP)
1193            sampler->state.wrap_r = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE;
1194    }
1195
1196    sampler->filter0 |=
1197        (r300_translate_wrap(sampler->state.wrap_s) << R300_TX_WRAP_S_SHIFT) |
1198        (r300_translate_wrap(sampler->state.wrap_t) << R300_TX_WRAP_T_SHIFT) |
1199        (r300_translate_wrap(sampler->state.wrap_r) << R300_TX_WRAP_R_SHIFT);
1200
1201    sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
1202                                                   state->mag_img_filter,
1203                                                   state->min_mip_filter,
1204                                                   state->max_anisotropy > 0);
1205
1206    sampler->filter0 |= r300_anisotropy(state->max_anisotropy);
1207
1208    /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */
1209    /* We must pass these to the merge function to clamp them properly. */
1210    sampler->min_lod = (unsigned)MAX2(state->min_lod, 0);
1211    sampler->max_lod = (unsigned)MAX2(ceilf(state->max_lod), 0);
1212
1213    lod_bias = CLAMP((int)(state->lod_bias * 32 + 1), -(1 << 9), (1 << 9) - 1);
1214
1215    sampler->filter1 |= (lod_bias << R300_LOD_BIAS_SHIFT) & R300_LOD_BIAS_MASK;
1216
1217    /* This is very high quality anisotropic filtering for R5xx.
1218     * It's good for benchmarking the performance of texturing but
1219     * in practice we don't want to slow down the driver because it's
1220     * a pretty good performance killer. Feel free to play with it. */
1221    if (DBG_ON(r300, DBG_ANISOHQ) && is_r500) {
1222        sampler->filter1 |= r500_anisotropy(state->max_anisotropy);
1223    }
1224
1225    /* R500-specific fixups and optimizations */
1226    if (r300->screen->caps.is_r500) {
1227        sampler->filter1 |= R500_BORDER_FIX;
1228    }
1229
1230    return (void*)sampler;
1231}
1232
1233static void r300_bind_sampler_states(struct pipe_context* pipe,
1234                                     unsigned count,
1235                                     void** states)
1236{
1237    struct r300_context* r300 = r300_context(pipe);
1238    struct r300_textures_state* state =
1239        (struct r300_textures_state*)r300->textures_state.state;
1240    unsigned tex_units = r300->screen->caps.num_tex_units;
1241
1242    if (count > tex_units) {
1243        return;
1244    }
1245
1246    memcpy(state->sampler_states, states, sizeof(void*) * count);
1247    state->sampler_state_count = count;
1248
1249    r300_mark_atom_dirty(r300, &r300->textures_state);
1250}
1251
1252static void r300_lacks_vertex_textures(struct pipe_context* pipe,
1253                                       unsigned count,
1254                                       void** states)
1255{
1256}
1257
1258static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
1259{
1260    FREE(state);
1261}
1262
1263static uint32_t r300_assign_texture_cache_region(unsigned index, unsigned num)
1264{
1265    /* This looks like a hack, but I believe it's suppose to work like
1266     * that. To illustrate how this works, let's assume you have 5 textures.
1267     * From docs, 5 and the successive numbers are:
1268     *
1269     * FOURTH_1     = 5
1270     * FOURTH_2     = 6
1271     * FOURTH_3     = 7
1272     * EIGHTH_0     = 8
1273     * EIGHTH_1     = 9
1274     *
1275     * First 3 textures will get 3/4 of size of the cache, divived evenly
1276     * between them. The last 1/4 of the cache must be divided between
1277     * the last 2 textures, each will therefore get 1/8 of the cache.
1278     * Why not just to use "5 + texture_index" ?
1279     *
1280     * This simple trick works for all "num" <= 16.
1281     */
1282    if (num <= 1)
1283        return R300_TX_CACHE(R300_TX_CACHE_WHOLE);
1284    else
1285        return R300_TX_CACHE(num + index);
1286}
1287
1288static void r300_set_fragment_sampler_views(struct pipe_context* pipe,
1289                                            unsigned count,
1290                                            struct pipe_sampler_view** views)
1291{
1292    struct r300_context* r300 = r300_context(pipe);
1293    struct r300_textures_state* state =
1294        (struct r300_textures_state*)r300->textures_state.state;
1295    struct r300_resource *texture;
1296    unsigned i, real_num_views = 0, view_index = 0;
1297    unsigned tex_units = r300->screen->caps.num_tex_units;
1298    boolean dirty_tex = FALSE;
1299
1300    if (count > tex_units) {
1301        return;
1302    }
1303
1304    /* Calculate the real number of views. */
1305    for (i = 0; i < count; i++) {
1306        if (views[i])
1307            real_num_views++;
1308    }
1309
1310    for (i = 0; i < count; i++) {
1311        pipe_sampler_view_reference(
1312                (struct pipe_sampler_view**)&state->sampler_views[i],
1313                views[i]);
1314
1315        if (!views[i]) {
1316            continue;
1317        }
1318
1319        /* A new sampler view (= texture)... */
1320        dirty_tex = TRUE;
1321
1322        /* Set the texrect factor in the fragment shader.
1323             * Needed for RECT and NPOT fallback. */
1324        texture = r300_resource(views[i]->texture);
1325        if (texture->tex.is_npot) {
1326            r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
1327        }
1328
1329        state->sampler_views[i]->texcache_region =
1330                r300_assign_texture_cache_region(view_index, real_num_views);
1331        view_index++;
1332    }
1333
1334    for (i = count; i < tex_units; i++) {
1335        if (state->sampler_views[i]) {
1336            pipe_sampler_view_reference(
1337                    (struct pipe_sampler_view**)&state->sampler_views[i],
1338                    NULL);
1339        }
1340    }
1341
1342    state->sampler_view_count = count;
1343
1344    r300_mark_atom_dirty(r300, &r300->textures_state);
1345
1346    if (dirty_tex) {
1347        r300_mark_atom_dirty(r300, &r300->texture_cache_inval);
1348    }
1349}
1350
1351static struct pipe_sampler_view *
1352r300_create_sampler_view(struct pipe_context *pipe,
1353                         struct pipe_resource *texture,
1354                         const struct pipe_sampler_view *templ)
1355{
1356    struct r300_sampler_view *view = CALLOC_STRUCT(r300_sampler_view);
1357    struct r300_resource *tex = r300_resource(texture);
1358    boolean is_r500 = r300_screen(pipe->screen)->caps.is_r500;
1359    boolean dxtc_swizzle = r300_screen(pipe->screen)->caps.dxtc_swizzle;
1360
1361    if (view) {
1362        view->base = *templ;
1363        view->base.reference.count = 1;
1364        view->base.context = pipe;
1365        view->base.texture = NULL;
1366        pipe_resource_reference(&view->base.texture, texture);
1367
1368        view->swizzle[0] = templ->swizzle_r;
1369        view->swizzle[1] = templ->swizzle_g;
1370        view->swizzle[2] = templ->swizzle_b;
1371        view->swizzle[3] = templ->swizzle_a;
1372
1373        view->format = tex->tx_format;
1374        view->format.format1 |= r300_translate_texformat(templ->format,
1375                                                         view->swizzle,
1376                                                         is_r500,
1377                                                         dxtc_swizzle);
1378        if (is_r500) {
1379            view->format.format2 |= r500_tx_format_msb_bit(templ->format);
1380        }
1381    }
1382
1383    return (struct pipe_sampler_view*)view;
1384}
1385
1386static void
1387r300_sampler_view_destroy(struct pipe_context *pipe,
1388                          struct pipe_sampler_view *view)
1389{
1390   pipe_resource_reference(&view->texture, NULL);
1391   FREE(view);
1392}
1393
1394static void r300_set_scissor_state(struct pipe_context* pipe,
1395                                   const struct pipe_scissor_state* state)
1396{
1397    struct r300_context* r300 = r300_context(pipe);
1398
1399    memcpy(r300->scissor_state.state, state,
1400        sizeof(struct pipe_scissor_state));
1401
1402    r300_mark_atom_dirty(r300, &r300->scissor_state);
1403}
1404
1405static void r300_set_viewport_state(struct pipe_context* pipe,
1406                                    const struct pipe_viewport_state* state)
1407{
1408    struct r300_context* r300 = r300_context(pipe);
1409    struct r300_viewport_state* viewport =
1410        (struct r300_viewport_state*)r300->viewport_state.state;
1411
1412    r300->viewport = *state;
1413
1414    if (r300->draw) {
1415        draw_set_viewport_state(r300->draw, state);
1416        viewport->vte_control = R300_VTX_XY_FMT | R300_VTX_Z_FMT;
1417        return;
1418    }
1419
1420    /* Do the transform in HW. */
1421    viewport->vte_control = R300_VTX_W0_FMT;
1422
1423    if (state->scale[0] != 1.0f) {
1424        viewport->xscale = state->scale[0];
1425        viewport->vte_control |= R300_VPORT_X_SCALE_ENA;
1426    }
1427    if (state->scale[1] != 1.0f) {
1428        viewport->yscale = state->scale[1];
1429        viewport->vte_control |= R300_VPORT_Y_SCALE_ENA;
1430    }
1431    if (state->scale[2] != 1.0f) {
1432        viewport->zscale = state->scale[2];
1433        viewport->vte_control |= R300_VPORT_Z_SCALE_ENA;
1434    }
1435    if (state->translate[0] != 0.0f) {
1436        viewport->xoffset = state->translate[0];
1437        viewport->vte_control |= R300_VPORT_X_OFFSET_ENA;
1438    }
1439    if (state->translate[1] != 0.0f) {
1440        viewport->yoffset = state->translate[1];
1441        viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA;
1442    }
1443    if (state->translate[2] != 0.0f) {
1444        viewport->zoffset = state->translate[2];
1445        viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA;
1446    }
1447
1448    r300_mark_atom_dirty(r300, &r300->viewport_state);
1449    if (r300->fs.state && r300_fs(r300)->shader->inputs.wpos != ATTR_UNUSED) {
1450        r300_mark_atom_dirty(r300, &r300->fs_rc_constant_state);
1451    }
1452}
1453
1454static void r300_set_vertex_buffers(struct pipe_context* pipe,
1455                                    unsigned count,
1456                                    const struct pipe_vertex_buffer* buffers)
1457{
1458    struct r300_context* r300 = r300_context(pipe);
1459    unsigned i;
1460    struct pipe_vertex_buffer dummy_vb = {0};
1461
1462    /* There must be at least one vertex buffer set, otherwise it locks up. */
1463    if (!count) {
1464        dummy_vb.buffer = r300->dummy_vb;
1465        buffers = &dummy_vb;
1466        count = 1;
1467    }
1468
1469    u_vbuf_mgr_set_vertex_buffers(r300->vbuf_mgr, count, buffers);
1470
1471    if (r300->screen->caps.has_tcl) {
1472        /* HW TCL. */
1473        for (i = 0; i < count; i++) {
1474            if (buffers[i].buffer &&
1475		!r300_resource(buffers[i].buffer)->b.user_ptr) {
1476            }
1477        }
1478        r300->vertex_arrays_dirty = TRUE;
1479    } else {
1480        /* SW TCL. */
1481        draw_set_vertex_buffers(r300->draw, count, buffers);
1482    }
1483}
1484
1485static void r300_set_index_buffer(struct pipe_context* pipe,
1486                                  const struct pipe_index_buffer *ib)
1487{
1488    struct r300_context* r300 = r300_context(pipe);
1489
1490    if (ib && ib->buffer) {
1491        assert(ib->offset % ib->index_size == 0);
1492
1493        pipe_resource_reference(&r300->index_buffer.buffer, ib->buffer);
1494        memcpy(&r300->index_buffer, ib, sizeof(r300->index_buffer));
1495        r300->index_buffer.offset /= r300->index_buffer.index_size;
1496    }
1497    else {
1498        pipe_resource_reference(&r300->index_buffer.buffer, NULL);
1499        memset(&r300->index_buffer, 0, sizeof(r300->index_buffer));
1500    }
1501
1502    if (!r300->screen->caps.has_tcl) {
1503        draw_set_index_buffer(r300->draw, ib);
1504    }
1505}
1506
1507/* Initialize the PSC tables. */
1508static void r300_vertex_psc(struct r300_vertex_element_state *velems)
1509{
1510    struct r300_vertex_stream_state *vstream = &velems->vertex_stream;
1511    uint16_t type, swizzle;
1512    enum pipe_format format;
1513    unsigned i;
1514
1515    if (velems->count > 16) {
1516        fprintf(stderr, "r300: More than 16 vertex elements are not supported,"
1517                " requested %i, using 16.\n", velems->count);
1518        velems->count = 16;
1519    }
1520
1521    /* Vertex shaders have no semantics on their inputs,
1522     * so PSC should just route stuff based on the vertex elements,
1523     * and not on attrib information. */
1524    for (i = 0; i < velems->count; i++) {
1525        format = velems->velem[i].src_format;
1526
1527        type = r300_translate_vertex_data_type(format);
1528        if (type == R300_INVALID_FORMAT) {
1529            fprintf(stderr, "r300: Bad vertex format %s.\n",
1530                    util_format_short_name(format));
1531            assert(0);
1532            abort();
1533        }
1534
1535        type |= i << R300_DST_VEC_LOC_SHIFT;
1536        swizzle = r300_translate_vertex_data_swizzle(format);
1537
1538        if (i & 1) {
1539            vstream->vap_prog_stream_cntl[i >> 1] |= type << 16;
1540            vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16;
1541        } else {
1542            vstream->vap_prog_stream_cntl[i >> 1] |= type;
1543            vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle;
1544        }
1545    }
1546
1547    /* Set the last vector in the PSC. */
1548    if (i) {
1549        i -= 1;
1550    }
1551    vstream->vap_prog_stream_cntl[i >> 1] |=
1552        (R300_LAST_VEC << (i & 1 ? 16 : 0));
1553
1554    vstream->count = (i >> 1) + 1;
1555}
1556
1557static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
1558                                               unsigned count,
1559                                               const struct pipe_vertex_element* attribs)
1560{
1561    struct r300_context *r300 = r300_context(pipe);
1562    struct r300_vertex_element_state *velems;
1563    unsigned i;
1564    struct pipe_vertex_element dummy_attrib = {0};
1565
1566    /* R300 Programmable Stream Control (PSC) doesn't support 0 vertex elements. */
1567    if (!count) {
1568        dummy_attrib.src_format = PIPE_FORMAT_R8G8B8A8_UNORM;
1569        attribs = &dummy_attrib;
1570        count = 1;
1571    }
1572
1573    assert(count <= PIPE_MAX_ATTRIBS);
1574    velems = CALLOC_STRUCT(r300_vertex_element_state);
1575    if (!velems)
1576        return NULL;
1577
1578    velems->count = count;
1579    velems->vmgr_elements =
1580        u_vbuf_mgr_create_vertex_elements(r300->vbuf_mgr, count, attribs,
1581                                          velems->velem);
1582
1583    if (r300_screen(pipe->screen)->caps.has_tcl) {
1584        /* Setup PSC.
1585         * The unused components will be replaced by (..., 0, 1). */
1586        r300_vertex_psc(velems);
1587
1588        for (i = 0; i < count; i++) {
1589            velems->format_size[i] =
1590                align(util_format_get_blocksize(velems->velem[i].src_format), 4);
1591            velems->vertex_size_dwords += velems->format_size[i] / 4;
1592        }
1593    }
1594
1595    return velems;
1596}
1597
1598static void r300_bind_vertex_elements_state(struct pipe_context *pipe,
1599                                            void *state)
1600{
1601    struct r300_context *r300 = r300_context(pipe);
1602    struct r300_vertex_element_state *velems = state;
1603
1604    if (velems == NULL) {
1605        return;
1606    }
1607
1608    r300->velems = velems;
1609
1610    u_vbuf_mgr_bind_vertex_elements(r300->vbuf_mgr, state, velems->vmgr_elements);
1611
1612    if (r300->draw) {
1613        draw_set_vertex_elements(r300->draw, velems->count, velems->velem);
1614        return;
1615    }
1616
1617    UPDATE_STATE(&velems->vertex_stream, r300->vertex_stream_state);
1618    r300->vertex_stream_state.size = (1 + velems->vertex_stream.count) * 2;
1619    r300->vertex_arrays_dirty = TRUE;
1620}
1621
1622static void r300_delete_vertex_elements_state(struct pipe_context *pipe, void *state)
1623{
1624    struct r300_context *r300 = r300_context(pipe);
1625    struct r300_vertex_element_state *velems = state;
1626
1627    u_vbuf_mgr_destroy_vertex_elements(r300->vbuf_mgr, velems->vmgr_elements);
1628    FREE(state);
1629}
1630
1631static void* r300_create_vs_state(struct pipe_context* pipe,
1632                                  const struct pipe_shader_state* shader)
1633{
1634    struct r300_context* r300 = r300_context(pipe);
1635    struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader);
1636
1637    /* Copy state directly into shader. */
1638    vs->state = *shader;
1639    vs->state.tokens = tgsi_dup_tokens(shader->tokens);
1640
1641    if (r300->screen->caps.has_tcl) {
1642        r300_init_vs_outputs(vs);
1643        r300_translate_vertex_shader(r300, vs);
1644    } else {
1645        r300_draw_init_vertex_shader(r300->draw, vs);
1646    }
1647
1648    return vs;
1649}
1650
1651static void r300_bind_vs_state(struct pipe_context* pipe, void* shader)
1652{
1653    struct r300_context* r300 = r300_context(pipe);
1654    struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
1655
1656    if (vs == NULL) {
1657        r300->vs_state.state = NULL;
1658        return;
1659    }
1660    if (vs == r300->vs_state.state) {
1661        return;
1662    }
1663    r300->vs_state.state = vs;
1664
1665    /* The majority of the RS block bits is dependent on the vertex shader. */
1666    r300_mark_atom_dirty(r300, &r300->rs_block_state); /* Will be updated before the emission. */
1667
1668    if (r300->screen->caps.has_tcl) {
1669        unsigned fc_op_dwords = r300->screen->caps.is_r500 ? 3 : 2;
1670        r300_mark_atom_dirty(r300, &r300->vs_state);
1671        r300->vs_state.size =
1672                vs->code.length + 9 +
1673        (vs->code.num_fc_ops ? vs->code.num_fc_ops * fc_op_dwords + 4 : 0);
1674
1675        r300_mark_atom_dirty(r300, &r300->vs_constants);
1676        r300->vs_constants.size =
1677                2 +
1678                (vs->externals_count ? vs->externals_count * 4 + 3 : 0) +
1679                (vs->immediates_count ? vs->immediates_count * 4 + 3 : 0);
1680
1681        ((struct r300_constant_buffer*)r300->vs_constants.state)->remap_table =
1682                vs->code.constants_remap_table;
1683
1684        r300_mark_atom_dirty(r300, &r300->pvs_flush);
1685    } else {
1686        draw_bind_vertex_shader(r300->draw,
1687                (struct draw_vertex_shader*)vs->draw_vs);
1688    }
1689}
1690
1691static void r300_delete_vs_state(struct pipe_context* pipe, void* shader)
1692{
1693    struct r300_context* r300 = r300_context(pipe);
1694    struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader;
1695
1696    if (r300->screen->caps.has_tcl) {
1697        rc_constants_destroy(&vs->code.constants);
1698        if (vs->code.constants_remap_table)
1699            FREE(vs->code.constants_remap_table);
1700    } else {
1701        draw_delete_vertex_shader(r300->draw,
1702                (struct draw_vertex_shader*)vs->draw_vs);
1703    }
1704
1705    FREE((void*)vs->state.tokens);
1706    FREE(shader);
1707}
1708
1709static void r300_set_constant_buffer(struct pipe_context *pipe,
1710                                     uint shader, uint index,
1711                                     struct pipe_resource *buf)
1712{
1713    struct r300_context* r300 = r300_context(pipe);
1714    struct r300_constant_buffer *cbuf;
1715    struct r300_resource *rbuf = r300_resource(buf);
1716    uint32_t *mapped;
1717
1718    switch (shader) {
1719        case PIPE_SHADER_VERTEX:
1720            cbuf = (struct r300_constant_buffer*)r300->vs_constants.state;
1721            break;
1722        case PIPE_SHADER_FRAGMENT:
1723            cbuf = (struct r300_constant_buffer*)r300->fs_constants.state;
1724            break;
1725        default:
1726            return;
1727    }
1728
1729    if (buf == NULL || buf->width0 == 0)
1730        return;
1731
1732    if (rbuf->b.user_ptr)
1733        mapped = (uint32_t*)rbuf->b.user_ptr;
1734    else if (rbuf->constant_buffer)
1735        mapped = (uint32_t*)rbuf->constant_buffer;
1736    else
1737        return;
1738
1739    if (shader == PIPE_SHADER_FRAGMENT ||
1740        (shader == PIPE_SHADER_VERTEX && r300->screen->caps.has_tcl)) {
1741        cbuf->ptr = mapped;
1742    }
1743
1744    if (shader == PIPE_SHADER_VERTEX) {
1745        if (r300->screen->caps.has_tcl) {
1746            struct r300_vertex_shader *vs =
1747                    (struct r300_vertex_shader*)r300->vs_state.state;
1748
1749            if (!vs) {
1750                cbuf->buffer_base = 0;
1751                return;
1752            }
1753
1754            cbuf->buffer_base = r300->vs_const_base;
1755            r300->vs_const_base += vs->code.constants.Count;
1756            if (r300->vs_const_base > R500_MAX_PVS_CONST_VECS) {
1757                r300->vs_const_base = vs->code.constants.Count;
1758                cbuf->buffer_base = 0;
1759                r300_mark_atom_dirty(r300, &r300->pvs_flush);
1760            }
1761            r300_mark_atom_dirty(r300, &r300->vs_constants);
1762        } else if (r300->draw) {
1763            draw_set_mapped_constant_buffer(r300->draw, PIPE_SHADER_VERTEX,
1764                0, mapped, buf->width0);
1765        }
1766    } else if (shader == PIPE_SHADER_FRAGMENT) {
1767        r300_mark_atom_dirty(r300, &r300->fs_constants);
1768    }
1769}
1770
1771void r300_init_state_functions(struct r300_context* r300)
1772{
1773    r300->context.create_blend_state = r300_create_blend_state;
1774    r300->context.bind_blend_state = r300_bind_blend_state;
1775    r300->context.delete_blend_state = r300_delete_blend_state;
1776
1777    r300->context.set_blend_color = r300_set_blend_color;
1778
1779    r300->context.set_clip_state = r300_set_clip_state;
1780    r300->context.set_sample_mask = r300_set_sample_mask;
1781
1782    r300->context.set_constant_buffer = r300_set_constant_buffer;
1783
1784    r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state;
1785    r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state;
1786    r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state;
1787
1788    r300->context.set_stencil_ref = r300_set_stencil_ref;
1789
1790    r300->context.set_framebuffer_state = r300_set_framebuffer_state;
1791
1792    r300->context.create_fs_state = r300_create_fs_state;
1793    r300->context.bind_fs_state = r300_bind_fs_state;
1794    r300->context.delete_fs_state = r300_delete_fs_state;
1795
1796    r300->context.set_polygon_stipple = r300_set_polygon_stipple;
1797
1798    r300->context.create_rasterizer_state = r300_create_rs_state;
1799    r300->context.bind_rasterizer_state = r300_bind_rs_state;
1800    r300->context.delete_rasterizer_state = r300_delete_rs_state;
1801
1802    r300->context.create_sampler_state = r300_create_sampler_state;
1803    r300->context.bind_fragment_sampler_states = r300_bind_sampler_states;
1804    r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures;
1805    r300->context.delete_sampler_state = r300_delete_sampler_state;
1806
1807    r300->context.set_fragment_sampler_views = r300_set_fragment_sampler_views;
1808    r300->context.create_sampler_view = r300_create_sampler_view;
1809    r300->context.sampler_view_destroy = r300_sampler_view_destroy;
1810
1811    r300->context.set_scissor_state = r300_set_scissor_state;
1812
1813    r300->context.set_viewport_state = r300_set_viewport_state;
1814
1815    r300->context.set_vertex_buffers = r300_set_vertex_buffers;
1816    r300->context.set_index_buffer = r300_set_index_buffer;
1817    r300->context.redefine_user_buffer = u_default_redefine_user_buffer;
1818
1819    r300->context.create_vertex_elements_state = r300_create_vertex_elements_state;
1820    r300->context.bind_vertex_elements_state = r300_bind_vertex_elements_state;
1821    r300->context.delete_vertex_elements_state = r300_delete_vertex_elements_state;
1822
1823    r300->context.create_vs_state = r300_create_vs_state;
1824    r300->context.bind_vs_state = r300_bind_vs_state;
1825    r300->context.delete_vs_state = r300_delete_vs_state;
1826}
1827