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1 /*
2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * on the rights to use, copy, modify, merge, publish, distribute, sub
8  * license, and/or sell copies of the Software, and to permit persons to whom
9  * the Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
22 
23 #ifndef R300_CONTEXT_H
24 #define R300_CONTEXT_H
25 
26 #include "draw/draw_vertex.h"
27 
28 #include "util/u_blitter.h"
29 
30 #include "pipe/p_context.h"
31 #include "util/u_inlines.h"
32 #include "util/u_transfer.h"
33 
34 #include "r300_defines.h"
35 #include "r300_screen.h"
36 #include "../../winsys/radeon/drm/radeon_winsys.h"
37 
38 struct u_upload_mgr;
39 struct r300_context;
40 struct r300_fragment_shader;
41 struct r300_vertex_shader;
42 struct r300_stencilref_context;
43 
44 enum colormask_swizzle {
45     COLORMASK_BGRA,
46     COLORMASK_RGBA,
47     COLORMASK_RRRR,
48     COLORMASK_AAAA,
49     COLORMASK_GRRG,
50     COLORMASK_ARRA,
51     COLORMASK_NUM_SWIZZLES
52 };
53 
54 struct r300_atom {
55     /* Name, for debugging. */
56     const char* name;
57     /* Opaque state. */
58     void* state;
59     /* Emit the state to the context. */
60     void (*emit)(struct r300_context*, unsigned, void*);
61     /* Upper bound on number of dwords to emit. */
62     unsigned size;
63     /* Whether this atom should be emitted. */
64     boolean dirty;
65     /* Whether this atom may be emitted with state == NULL. */
66     boolean allow_null_state;
67 };
68 
69 struct r300_aa_state {
70     struct r300_surface *dest;
71 
72     uint32_t aa_config;
73     uint32_t aaresolve_ctl;
74 };
75 
76 struct r300_blend_state {
77     struct pipe_blend_state state;
78 
79     uint32_t cb_clamp[COLORMASK_NUM_SWIZZLES][8];
80     uint32_t cb_noclamp[8];
81     uint32_t cb_no_readwrite[8];
82 };
83 
84 struct r300_blend_color_state {
85     struct pipe_blend_color state;
86     uint32_t cb[3];
87 };
88 
89 struct r300_clip_state {
90     uint32_t cb[29];
91 };
92 
93 struct r300_dsa_state {
94     struct pipe_depth_stencil_alpha_state dsa;
95 
96     /* This is actually a command buffer with named dwords. */
97     uint32_t cb_begin;
98     uint32_t alpha_function;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
99     uint32_t cb_reg_seq;
100     uint32_t z_buffer_control;  /* R300_ZB_CNTL: 0x4f00 */
101     uint32_t z_stencil_control; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
102     uint32_t stencil_ref_mask;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
103     uint32_t cb_reg;
104     uint32_t stencil_ref_bf;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
105     uint32_t cb_reg1;
106     uint32_t alpha_value;       /* R500_FG_ALPHA_VALUE: 0x4be0 */
107 
108     /* The same, but for FP16 alpha test. */
109     uint32_t cb_begin_fp16;
110     uint32_t alpha_function_fp16;    /* R300_FG_ALPHA_FUNC: 0x4bd4 */
111     uint32_t cb_reg_seq_fp16;
112     uint32_t z_buffer_control_fp16;  /* R300_ZB_CNTL: 0x4f00 */
113     uint32_t z_stencil_control_fp16; /* R300_ZB_ZSTENCILCNTL: 0x4f04 */
114     uint32_t stencil_ref_mask_fp16;  /* R300_ZB_STENCILREFMASK: 0x4f08 */
115     uint32_t cb_reg_fp16;
116     uint32_t stencil_ref_bf_fp16;    /* R500_ZB_STENCILREFMASK_BF: 0x4fd4 */
117     uint32_t cb_reg1_fp16;
118     uint32_t alpha_value_fp16;       /* R500_FG_ALPHA_VALUE: 0x4be0 */
119 
120     /* The second command buffer disables zbuffer reads and writes. */
121     uint32_t cb_zb_no_readwrite[10];
122     uint32_t cb_fp16_zb_no_readwrite[10];
123 
124     /* Whether a two-sided stencil is enabled. */
125     boolean two_sided;
126     /* Whether a fallback should be used for a two-sided stencil ref value. */
127     boolean two_sided_stencil_ref;
128 };
129 
130 struct r300_hyperz_state {
131     int flush;
132     /* This is actually a command buffer with named dwords. */
133     uint32_t cb_flush_begin;
134     uint32_t zb_zcache_ctlstat;     /* R300_ZB_CACHE_CNTL */
135     uint32_t cb_begin;
136     uint32_t zb_bw_cntl;            /* R300_ZB_BW_CNTL */
137     uint32_t cb_reg1;
138     uint32_t zb_depthclearvalue;    /* R300_ZB_DEPTHCLEARVALUE */
139     uint32_t cb_reg2;
140     uint32_t sc_hyperz;             /* R300_SC_HYPERZ */
141     uint32_t cb_reg3;
142     uint32_t gb_z_peq_config;       /* R300_GB_Z_PEQ_CONFIG: 0x4028 */
143 };
144 
145 struct r300_gpu_flush {
146     uint32_t cb_flush_clean[6];
147 };
148 
149 #define RS_STATE_MAIN_SIZE 27
150 
151 struct r300_rs_state {
152     /* Original rasterizer state. */
153     struct pipe_rasterizer_state rs;
154     /* Draw-specific rasterizer state. */
155     struct pipe_rasterizer_state rs_draw;
156 
157     /* Command buffers. */
158     uint32_t cb_main[RS_STATE_MAIN_SIZE];
159     uint32_t cb_poly_offset_zb16[5];
160     uint32_t cb_poly_offset_zb24[5];
161 
162     /* The index to cb_main where the cull_mode register value resides. */
163     unsigned cull_mode_index;
164 
165     /* Whether polygon offset is enabled. */
166     boolean polygon_offset_enable;
167 
168     /* This is emitted in the draw function. */
169     uint32_t color_control;         /* R300_GA_COLOR_CONTROL: 0x4278 */
170 };
171 
172 struct r300_rs_block {
173     uint32_t vap_vtx_state_cntl;  /* R300_VAP_VTX_STATE_CNTL: 0x2180 */
174     uint32_t vap_vsm_vtx_assm;    /* R300_VAP_VSM_VTX_ASSM: 0x2184 */
175     uint32_t vap_out_vtx_fmt[2];  /* R300_VAP_OUTPUT_VTX_FMT_[0-1]: 0x2090 */
176     uint32_t gb_enable;
177 
178     uint32_t ip[8]; /* R300_RS_IP_[0-7], R500_RS_IP_[0-7] */
179     uint32_t count; /* R300_RS_COUNT */
180     uint32_t inst_count; /* R300_RS_INST_COUNT */
181     uint32_t inst[8]; /* R300_RS_INST_[0-7] */
182 };
183 
184 struct r300_sampler_state {
185     struct pipe_sampler_state state;
186 
187     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
188     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
189 
190     /* Min/max LOD must be clamped to [0, last_level], thus
191      * it's dependent on a currently bound texture */
192     unsigned min_lod, max_lod;
193 };
194 
195 struct r300_texture_format_state {
196     uint32_t format0; /* R300_TX_FORMAT0: 0x4480 */
197     uint32_t format1; /* R300_TX_FORMAT1: 0x44c0 */
198     uint32_t format2; /* R300_TX_FORMAT2: 0x4500 */
199     uint32_t tile_config; /* R300_TX_OFFSET (subset thereof) */
200     uint32_t us_format0;   /* R500_US_FORMAT0_0: 0x4640 (through 15) */
201 };
202 
203 struct r300_sampler_view {
204     struct pipe_sampler_view base;
205 
206     /* For resource_copy_region. */
207     unsigned width0_override;
208     unsigned height0_override;
209 
210     /* Swizzles in the UTIL_FORMAT_SWIZZLE_* representation,
211      * derived from base. */
212     unsigned char swizzle[4];
213 
214     /* Copy of r300_texture::texture_format_state with format-specific bits
215      * added. */
216     struct r300_texture_format_state format;
217 
218     /* The texture cache region for this texture. */
219     uint32_t texcache_region;
220 };
221 
222 struct r300_texture_sampler_state {
223     struct r300_texture_format_state format;
224     uint32_t filter0;      /* R300_TX_FILTER0: 0x4400 */
225     uint32_t filter1;      /* R300_TX_FILTER1: 0x4440 */
226     uint32_t border_color; /* R300_TX_BORDER_COLOR: 0x45c0 */
227 };
228 
229 struct r300_textures_state {
230     /* Textures. */
231     struct r300_sampler_view *sampler_views[16];
232     int sampler_view_count;
233     /* Sampler states. */
234     struct r300_sampler_state *sampler_states[16];
235     int sampler_state_count;
236 
237     /* This is the merge of the texture and sampler states. */
238     unsigned count;
239     uint32_t tx_enable;         /* R300_TX_ENABLE: 0x4101 */
240     struct r300_texture_sampler_state regs[16];
241 };
242 
243 struct r300_vertex_stream_state {
244     /* R300_VAP_PROG_STREAK_CNTL_[0-7] */
245     uint32_t vap_prog_stream_cntl[8];
246     /* R300_VAP_PROG_STREAK_CNTL_EXT_[0-7] */
247     uint32_t vap_prog_stream_cntl_ext[8];
248 
249     unsigned count;
250 };
251 
252 struct r300_invariant_state {
253     uint32_t cb[24];
254 };
255 
256 struct r300_vap_invariant_state {
257     uint32_t cb[11];
258 };
259 
260 struct r300_viewport_state {
261     float xscale;         /* R300_VAP_VPORT_XSCALE:  0x2098 */
262     float xoffset;        /* R300_VAP_VPORT_XOFFSET: 0x209c */
263     float yscale;         /* R300_VAP_VPORT_YSCALE:  0x20a0 */
264     float yoffset;        /* R300_VAP_VPORT_YOFFSET: 0x20a4 */
265     float zscale;         /* R300_VAP_VPORT_ZSCALE:  0x20a8 */
266     float zoffset;        /* R300_VAP_VPORT_ZOFFSET: 0x20ac */
267     uint32_t vte_control; /* R300_VAP_VTE_CNTL:      0x20b0 */
268 };
269 
270 struct r300_ztop_state {
271     uint32_t z_buffer_top;      /* R300_ZB_ZTOP: 0x4f14 */
272 };
273 
274 /* The next several objects are not pure Radeon state; they inherit from
275  * various Gallium classes. */
276 
277 struct r300_constant_buffer {
278     /* Buffer of constants */
279     uint32_t *ptr;
280     /* Remapping table. */
281     unsigned *remap_table;
282     /* const buffer base */
283     uint32_t buffer_base;
284 };
285 
286 /* Query object.
287  *
288  * This is not a subclass of pipe_query because pipe_query is never
289  * actually fully defined. So, rather than have it as a member, and do
290  * subclass-style casting, we treat pipe_query as an opaque, and just
291  * trust that our state tracker does not ever mess up query objects.
292  */
293 struct r300_query {
294     /* The kind of query. Currently only OQ is supported. */
295     unsigned type;
296     /* The number of pipes where query results are stored. */
297     unsigned num_pipes;
298     /* How many results have been written, in dwords. It's incremented
299      * after end_query and flush. */
300     unsigned num_results;
301     /* if begin has been emitted */
302     boolean begin_emitted;
303 
304     /* The buffer where query results are stored. */
305     struct pb_buffer *buf;
306     struct radeon_winsys_cs_handle *cs_buf;
307 };
308 
309 struct r300_surface {
310     struct pipe_surface base;
311 
312     /* Winsys buffer backing the texture. */
313     struct pb_buffer *buf;
314     struct radeon_winsys_cs_handle *cs_buf;
315 
316     enum radeon_bo_domain domain;
317 
318     uint32_t offset;    /* COLOROFFSET or DEPTHOFFSET. */
319     uint32_t pitch;     /* COLORPITCH or DEPTHPITCH. */
320     uint32_t pitch_zmask; /* ZMASK_PITCH */
321     uint32_t pitch_hiz;   /* HIZ_PITCH */
322     uint32_t format;    /* US_OUT_FMT or ZB_FORMAT. */
323 
324     /* Parameters dedicated to the CBZB clear. */
325     uint32_t cbzb_width;            /* Aligned width. */
326     uint32_t cbzb_height;           /* Half of the height. */
327     uint32_t cbzb_midpoint_offset;  /* DEPTHOFFSET. */
328     uint32_t cbzb_pitch;            /* DEPTHPITCH. */
329     uint32_t cbzb_format;           /* ZB_FORMAT. */
330 
331     /* Whether the CBZB clear is allowed on the surface. */
332     boolean cbzb_allowed;
333 
334     unsigned colormask_swizzle;
335 };
336 
337 struct r300_texture_desc {
338     /* Width, height, and depth.
339      * Most of the time, these are equal to pipe_texture::width0, height0,
340      * and depth0. However, NPOT 3D textures must have dimensions aligned
341      * to POT, and this is the only case when these variables differ from
342      * pipe_texture. */
343     unsigned width0, height0, depth0;
344 
345     /* Buffer tiling.
346      * Macrotiling is specified per-level because small mipmaps cannot
347      * be macrotiled. */
348     enum radeon_bo_layout microtile;
349     enum radeon_bo_layout macrotile[R300_MAX_TEXTURE_LEVELS];
350 
351     /* Offsets into the buffer. */
352     unsigned offset_in_bytes[R300_MAX_TEXTURE_LEVELS];
353 
354     /* Strides for each mip-level. */
355     unsigned stride_in_bytes[R300_MAX_TEXTURE_LEVELS];
356 
357     /* Size of one zslice or face or 2D image based on the texture target. */
358     unsigned layer_size_in_bytes[R300_MAX_TEXTURE_LEVELS];
359 
360     /* Total size of this texture, in bytes,
361      * derived from the texture properties. */
362     unsigned size_in_bytes;
363 
364     /**
365      * If non-zero, override the natural texture layout with
366      * a custom stride (in bytes).
367      *
368      * \note Mipmapping fails for textures with a non-natural layout!
369      *
370      * \sa r300_texture_get_stride
371      */
372     unsigned stride_in_bytes_override;
373 
374     /* Whether this texture has non-power-of-two dimensions.
375      * It can be either a regular texture or a rectangle one. */
376     boolean is_npot;
377 
378     /* This flag says that hardware must use the stride for addressing
379      * instead of the width. */
380     boolean uses_stride_addressing;
381 
382     /* Whether CBZB fast color clear is allowed on the miplevel. */
383     boolean cbzb_allowed[R300_MAX_TEXTURE_LEVELS];
384 
385     /* Zbuffer compression info for each miplevel. */
386     boolean zcomp8x8[R300_MAX_TEXTURE_LEVELS];
387     /* If zero, then disable Z compression/HiZ. */
388     unsigned zmask_dwords[R300_MAX_TEXTURE_LEVELS];
389     unsigned hiz_dwords[R300_MAX_TEXTURE_LEVELS];
390     /* Zmask/HiZ strides for each miplevel. */
391     unsigned zmask_stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
392     unsigned hiz_stride_in_pixels[R300_MAX_TEXTURE_LEVELS];
393 };
394 
395 struct r300_resource
396 {
397     struct u_resource b;
398 
399     /* Winsys buffer backing this resource. */
400     struct pb_buffer *buf;
401     struct radeon_winsys_cs_handle *cs_buf;
402     enum radeon_bo_domain domain;
403 
404     /* Constant buffers and SWTCL vertex and index buffers are in user
405      * memory. */
406     uint8_t *malloced_buffer;
407 
408     /* Texture description (addressing, layout, special features). */
409     struct r300_texture_desc tex;
410 
411     /* This is the level tiling flags were last time set for.
412      * It's used to prevent redundant tiling-flags changes from happening.*/
413     unsigned surface_level;
414 };
415 
416 struct r300_vertex_element_state {
417     unsigned count;
418     struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
419     unsigned format_size[PIPE_MAX_ATTRIBS];
420 
421     /* The size of the vertex, in dwords. */
422     unsigned vertex_size_dwords;
423 
424     struct r300_vertex_stream_state vertex_stream;
425 };
426 
427 enum r300_hiz_func {
428     HIZ_FUNC_NONE,
429 
430     /* The function, when determined, is set in stone
431      * until the next HiZ clear. */
432 
433     /* MAX is written to the HiZ buffer.
434      * Used for LESS, LEQUAL. */
435     HIZ_FUNC_MAX,
436 
437     /* MIN is written to the HiZ buffer.
438      * Used for GREATER, GEQUAL. */
439     HIZ_FUNC_MIN,
440 };
441 
442 /* For deferred fragment shader state validation. */
443 enum r300_fs_validity_status {
444     FRAGMENT_SHADER_VALID,      /* No need to change/validate the FS. */
445     FRAGMENT_SHADER_MAYBE_DIRTY,/* Validate the FS if external state was changed. */
446     FRAGMENT_SHADER_DIRTY       /* Always validate the FS (if the FS was changed) */
447 };
448 
449 struct r300_context {
450     /* Parent class */
451     struct pipe_context context;
452 
453     /* The interface to the windowing system, etc. */
454     struct radeon_winsys *rws;
455     /* The command stream. */
456     struct radeon_winsys_cs *cs;
457     /* Screen. */
458     struct r300_screen *screen;
459 
460     /* Draw module. Used mostly for SW TCL. */
461     struct draw_context* draw;
462     /* Vertex buffer for SW TCL. */
463     struct pipe_resource* vbo;
464     /* Offset and size into the SW TCL VBO. */
465     size_t draw_vbo_offset;
466     size_t draw_vbo_size;
467     /* Whether the VBO must not be flushed. */
468     boolean draw_vbo_locked;
469     boolean draw_first_emitted;
470 
471     /* Accelerated blit support. */
472     struct blitter_context* blitter;
473     /* Stencil two-sided reference value fallback. */
474     struct r300_stencilref_context *stencilref_fallback;
475 
476     /* The KIL opcode needs the first texture unit to be enabled
477      * on r3xx-r4xx. In order to calm down the CS checker, we bind this
478      * dummy texture there. */
479     struct r300_sampler_view *texkill_sampler;
480 
481     /* When no vertex buffer is set, this one is used instead to prevent
482      * hardlocks. */
483     struct pipe_vertex_buffer dummy_vb;
484 
485     /* The currently active query. */
486     struct r300_query *query_current;
487     /* The saved query for blitter operations. */
488     struct r300_query *blitter_saved_query;
489     /* Query list. */
490     struct r300_query query_list;
491 
492     /* Various CSO state objects. */
493 
494     /* Each atom is emitted in the order it appears here, which can affect
495      * performance and stability if not handled with care. */
496     /* GPU flush. */
497     struct r300_atom gpu_flush;
498     /* Anti-aliasing (MSAA) state. */
499     struct r300_atom aa_state;
500     /* Framebuffer state. */
501     struct r300_atom fb_state;
502     /* HyperZ state (various SC/ZB bits). */
503     struct r300_atom hyperz_state;
504     /* ZTOP state. */
505     struct r300_atom ztop_state;
506     /* Depth, stencil, and alpha state. */
507     struct r300_atom dsa_state;
508     /* Blend state. */
509     struct r300_atom blend_state;
510     /* Blend color state. */
511     struct r300_atom blend_color_state;
512     /* Scissor state. */
513     struct r300_atom scissor_state;
514     /* Invariant state. This must be emitted to get the engine started. */
515     struct r300_atom invariant_state;
516     /* Viewport state. */
517     struct r300_atom viewport_state;
518     /* PVS flush. */
519     struct r300_atom pvs_flush;
520     /* VAP invariant state. */
521     struct r300_atom vap_invariant_state;
522     /* Vertex stream formatting state. */
523     struct r300_atom vertex_stream_state;
524     /* Vertex shader. */
525     struct r300_atom vs_state;
526     /* User clip planes. */
527     struct r300_atom clip_state;
528     /* RS block state + VAP (vertex shader) output mapping state. */
529     struct r300_atom rs_block_state;
530     /* Rasterizer state. */
531     struct r300_atom rs_state;
532     /* Framebuffer state (pipelined regs). */
533     struct r300_atom fb_state_pipelined;
534     /* Fragment shader. */
535     struct r300_atom fs;
536     /* Fragment shader RC_CONSTANT_STATE variables. */
537     struct r300_atom fs_rc_constant_state;
538     /* Fragment shader constant buffer. */
539     struct r300_atom fs_constants;
540     /* Vertex shader constant buffer. */
541     struct r300_atom vs_constants;
542     /* Texture cache invalidate. */
543     struct r300_atom texture_cache_inval;
544     /* Textures state. */
545     struct r300_atom textures_state;
546     /* HiZ clear */
547     struct r300_atom hiz_clear;
548     /* zmask clear */
549     struct r300_atom zmask_clear;
550     /* Occlusion query. */
551     struct r300_atom query_start;
552 
553     /* The pointers to the first and the last atom. */
554     struct r300_atom *first_dirty, *last_dirty;
555 
556     /* Vertex elements for Gallium. */
557     struct r300_vertex_element_state *velems;
558 
559     /* Vertex info for Draw. */
560     struct vertex_info vertex_info;
561 
562     struct pipe_stencil_ref stencil_ref;
563     struct pipe_viewport_state viewport;
564 
565     /* Stream locations for SWTCL. */
566     int stream_loc_notcl[16];
567 
568     /* Flag indicating whether or not the HW is dirty. */
569     uint32_t dirty_hw;
570     /* Whether polygon offset is enabled. */
571     boolean polygon_offset_enabled;
572     /* Z buffer bit depth. */
573     uint32_t zbuffer_bpp;
574     /* Whether rendering is conditional and should be skipped. */
575     boolean skip_rendering;
576     /* The flag above saved by blitter. */
577     unsigned char blitter_saved_skip_rendering;
578     /* Point sprites texcoord index,  1 bit per texcoord */
579     int sprite_coord_enable;
580     /* Whether two-sided color selection is enabled (AKA light_twoside). */
581     boolean two_sided_color;
582     /* Whether fast color clear is enabled. */
583     boolean cbzb_clear;
584     /* Whether fragment shader needs to be validated. */
585     enum r300_fs_validity_status fs_status;
586     /* Framebuffer multi-write. */
587     boolean fb_multiwrite;
588 
589     void *dsa_decompress_zmask;
590 
591     struct pipe_index_buffer index_buffer;
592     struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
593     unsigned nr_vertex_buffers;
594     struct u_upload_mgr *uploader;
595 
596     struct util_slab_mempool pool_transfers;
597 
598     /* Stat counter. */
599     uint64_t flush_counter;
600 
601     /* const tracking for VS */
602     int vs_const_base;
603 
604     /* Vertex array state info */
605     boolean vertex_arrays_dirty;
606     boolean vertex_arrays_indexed;
607     int vertex_arrays_offset;
608     int vertex_arrays_instance_id;
609     boolean instancing_enabled;
610 
611     /* Hyper-Z stats. */
612     boolean hyperz_enabled;     /* Whether it owns Hyper-Z access. */
613     int64_t hyperz_time_of_last_flush; /* Time of the last flush with Z clear. */
614     unsigned num_z_clears;      /* Since the last flush. */
615 
616     /* ZMask state. */
617     boolean zmask_in_use;       /* Whether ZMASK is enabled. */
618     boolean zmask_decompress;   /* Whether ZMASK is being decompressed. */
619     struct pipe_surface *locked_zbuffer; /* Unbound zbuffer which still has data in ZMASK. */
620 
621     /* HiZ state. */
622     boolean hiz_in_use;         /* Whether HIZ is enabled. */
623     enum r300_hiz_func hiz_func; /* HiZ function. Can be either MIN or MAX. */
624     uint32_t hiz_clear_value;   /* HiZ clear value. */
625 };
626 
627 #define foreach_atom(r300, atom) \
628     for (atom = &r300->gpu_flush; atom != (&r300->query_start)+1; atom++)
629 
630 #define foreach_dirty_atom(r300, atom) \
631     for (atom = r300->first_dirty; atom != r300->last_dirty; atom++)
632 
633 /* Convenience cast wrappers. */
r300_query(struct pipe_query * q)634 static INLINE struct r300_query* r300_query(struct pipe_query* q)
635 {
636     return (struct r300_query*)q;
637 }
638 
r300_surface(struct pipe_surface * surf)639 static INLINE struct r300_surface* r300_surface(struct pipe_surface* surf)
640 {
641     return (struct r300_surface*)surf;
642 }
643 
r300_resource(struct pipe_resource * tex)644 static INLINE struct r300_resource* r300_resource(struct pipe_resource* tex)
645 {
646     return (struct r300_resource*)tex;
647 }
648 
r300_context(struct pipe_context * context)649 static INLINE struct r300_context* r300_context(struct pipe_context* context)
650 {
651     return (struct r300_context*)context;
652 }
653 
r300_fs(struct r300_context * r300)654 static INLINE struct r300_fragment_shader *r300_fs(struct r300_context *r300)
655 {
656     return (struct r300_fragment_shader*)r300->fs.state;
657 }
658 
r300_mark_atom_dirty(struct r300_context * r300,struct r300_atom * atom)659 static INLINE void r300_mark_atom_dirty(struct r300_context *r300,
660                                         struct r300_atom *atom)
661 {
662     atom->dirty = TRUE;
663 
664     if (!r300->first_dirty) {
665         r300->first_dirty = atom;
666         r300->last_dirty = atom+1;
667     } else {
668         if (atom < r300->first_dirty)
669             r300->first_dirty = atom;
670         else if (atom+1 > r300->last_dirty)
671             r300->last_dirty = atom+1;
672     }
673 }
674 
675 struct pipe_context* r300_create_context(struct pipe_screen* screen,
676                                          void *priv);
677 
678 /* Context initialization. */
679 struct draw_stage* r300_draw_stage(struct r300_context* r300);
680 void r300_init_blit_functions(struct r300_context *r300);
681 void r300_init_flush_functions(struct r300_context* r300);
682 void r300_init_query_functions(struct r300_context* r300);
683 void r300_init_render_functions(struct r300_context *r300);
684 void r300_init_state_functions(struct r300_context* r300);
685 void r300_init_resource_functions(struct r300_context* r300);
686 
687 /* r300_blit.c */
688 void r300_decompress_zmask(struct r300_context *r300);
689 void r300_decompress_zmask_locked_unsafe(struct r300_context *r300);
690 void r300_decompress_zmask_locked(struct r300_context *r300);
691 bool r300_is_blit_supported(enum pipe_format format);
692 
693 /* r300_flush.c */
694 void r300_flush(struct pipe_context *pipe,
695                 unsigned flags,
696                 struct pipe_fence_handle **fence);
697 
698 /* r300_hyperz.c */
699 void r300_update_hyperz_state(struct r300_context* r300);
700 
701 /* r300_query.c */
702 void r300_resume_query(struct r300_context *r300,
703                        struct r300_query *query);
704 void r300_stop_query(struct r300_context *r300);
705 
706 /* r300_render_translate.c */
707 void r300_translate_index_buffer(struct r300_context *r300,
708                                  struct pipe_index_buffer *ib,
709                                  struct pipe_resource **out_index_buffer,
710                                  unsigned *index_size, unsigned index_offset,
711                                  unsigned *start, unsigned count);
712 
713 /* r300_render_stencilref.c */
714 void r300_plug_in_stencil_ref_fallback(struct r300_context *r300);
715 
716 /* r300_render.c */
717 void r300_draw_flush_vbuf(struct r300_context *r300);
718 void r500_emit_index_bias(struct r300_context *r300, int index_bias);
719 void r300_blitter_draw_rectangle(struct blitter_context *blitter,
720                                  unsigned x1, unsigned y1,
721                                  unsigned x2, unsigned y2,
722                                  float depth,
723                                  enum blitter_attrib_type type,
724                                  const union pipe_color_union *attrib);
725 
726 /* r300_state.c */
727 enum r300_fb_state_change {
728     R300_CHANGED_FB_STATE = 0,
729     R300_CHANGED_HYPERZ_FLAG,
730     R300_CHANGED_MULTIWRITE
731 };
732 
733 void r300_mark_fb_state_dirty(struct r300_context *r300,
734                               enum r300_fb_state_change change);
735 void r300_mark_fs_code_dirty(struct r300_context *r300);
736 
737 struct pipe_sampler_view *
738 r300_create_sampler_view_custom(struct pipe_context *pipe,
739                          struct pipe_resource *texture,
740                          const struct pipe_sampler_view *templ,
741                          unsigned width0_override,
742                          unsigned height0_override);
743 
744 /* r300_state_derived.c */
745 void r300_update_derived_state(struct r300_context* r300);
746 
747 /* r300_debug.c */
748 void r500_dump_rs_block(struct r300_rs_block *rs);
749 
750 
CTX_DBG_ON(struct r300_context * ctx,unsigned flags)751 static INLINE boolean CTX_DBG_ON(struct r300_context * ctx, unsigned flags)
752 {
753     return SCREEN_DBG_ON(ctx->screen, flags);
754 }
755 
CTX_DBG(struct r300_context * ctx,unsigned flags,const char * fmt,...)756 static INLINE void CTX_DBG(struct r300_context * ctx, unsigned flags,
757                        const char * fmt, ...)
758 {
759     if (CTX_DBG_ON(ctx, flags)) {
760         va_list va;
761         va_start(va, fmt);
762         vfprintf(stderr, fmt, va);
763         va_end(va);
764     }
765 }
766 
767 #define DBG_ON  CTX_DBG_ON
768 #define DBG     CTX_DBG
769 
770 #endif /* R300_CONTEXT_H */
771