1 /**************************************************************************
2 *
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef I915_CONTEXT_H
29 #define I915_CONTEXT_H
30
31
32 #include "pipe/p_context.h"
33 #include "pipe/p_defines.h"
34 #include "pipe/p_state.h"
35
36 #include "draw/draw_vertex.h"
37
38 #include "tgsi/tgsi_scan.h"
39
40 #include "util/u_slab.h"
41 #include "util/u_blitter.h"
42
43
44 struct i915_winsys;
45 struct i915_winsys_buffer;
46 struct i915_winsys_batchbuffer;
47
48
49 #define I915_TEX_UNITS 8
50
51 #define I915_DYNAMIC_MODES4 0
52 #define I915_DYNAMIC_DEPTHSCALE_0 1 /* just the header */
53 #define I915_DYNAMIC_DEPTHSCALE_1 2
54 #define I915_DYNAMIC_IAB 3
55 #define I915_DYNAMIC_BC_0 4 /* just the header */
56 #define I915_DYNAMIC_BC_1 5
57 #define I915_DYNAMIC_BFO_0 6
58 #define I915_DYNAMIC_BFO_1 7
59 #define I915_DYNAMIC_STP_0 8
60 #define I915_DYNAMIC_STP_1 9
61 #define I915_DYNAMIC_SC_ENA_0 10
62 #define I915_DYNAMIC_SC_RECT_0 11
63 #define I915_DYNAMIC_SC_RECT_1 12
64 #define I915_DYNAMIC_SC_RECT_2 13
65 #define I915_MAX_DYNAMIC 14
66
67
68 #define I915_IMMEDIATE_S0 0
69 #define I915_IMMEDIATE_S1 1
70 #define I915_IMMEDIATE_S2 2
71 #define I915_IMMEDIATE_S3 3
72 #define I915_IMMEDIATE_S4 4
73 #define I915_IMMEDIATE_S5 5
74 #define I915_IMMEDIATE_S6 6
75 #define I915_IMMEDIATE_S7 7
76 #define I915_MAX_IMMEDIATE 8
77
78 /* These must mach the order of LI0_STATE_* bits, as they will be used
79 * to generate hardware packets:
80 */
81 #define I915_CACHE_STATIC 0
82 #define I915_CACHE_DYNAMIC 1 /* handled specially */
83 #define I915_CACHE_SAMPLER 2
84 #define I915_CACHE_MAP 3
85 #define I915_CACHE_PROGRAM 4
86 #define I915_CACHE_CONSTANTS 5
87 #define I915_MAX_CACHE 6
88
89 #define I915_MAX_CONSTANT 32
90
91
92 /** See constant_flags[] below */
93 #define I915_CONSTFLAG_USER 0x1f
94
95
96 /**
97 * Subclass of pipe_shader_state
98 */
99 struct i915_fragment_shader
100 {
101 struct pipe_shader_state state;
102
103 struct tgsi_shader_info info;
104
105 struct draw_fragment_shader *draw_data;
106
107 uint *decl;
108 uint decl_len;
109
110 uint *program;
111 uint program_len;
112
113 /**
114 * constants introduced during translation.
115 * These are placed at the end of the constant buffer and grow toward
116 * the beginning (eg: slot 31, 30 29, ...)
117 * User-provided constants start at 0.
118 * This allows both types of constants to co-exist (until there's too many)
119 * and doesn't require regenerating/changing the fragment program to
120 * shuffle constants around.
121 */
122 uint num_constants;
123 float constants[I915_MAX_CONSTANT][4];
124
125 /**
126 * Status of each constant
127 * if I915_CONSTFLAG_PARAM, the value must be taken from the corresponding
128 * slot of the user's constant buffer. (set by pipe->set_constant_buffer())
129 * Else, the bitmask indicates which components are occupied by immediates.
130 */
131 ubyte constant_flags[I915_MAX_CONSTANT];
132
133 /**
134 * The mapping between generics and hw texture coords.
135 * We need to share this between the vertex and fragment stages.
136 **/
137 int generic_mapping[I915_TEX_UNITS];
138 };
139
140
141 struct i915_cache_context;
142
143 /* Use to calculate differences between state emitted to hardware and
144 * current driver-calculated state.
145 */
146 struct i915_state
147 {
148 unsigned immediate[I915_MAX_IMMEDIATE];
149 unsigned dynamic[I915_MAX_DYNAMIC];
150
151 /** number of constants passed in through a constant buffer */
152 uint num_user_constants[PIPE_SHADER_TYPES];
153
154 /* texture sampler state */
155 unsigned sampler[I915_TEX_UNITS][3];
156 unsigned sampler_enable_flags;
157 unsigned sampler_enable_nr;
158 boolean sampler_srgb[I915_TEX_UNITS];
159 int srgb_const_offset;
160
161 /* texture image buffers */
162 unsigned texbuffer[I915_TEX_UNITS][2];
163
164 /** Describes the current hardware vertex layout */
165 struct vertex_info vertex_info;
166
167 /* static state (dst/depth buffer state) */
168 struct i915_winsys_buffer *cbuf_bo;
169 unsigned cbuf_flags;
170 struct i915_winsys_buffer *depth_bo;
171 unsigned depth_flags;
172 unsigned dst_buf_vars;
173 uint32_t draw_offset;
174 uint32_t draw_size;
175 uint32_t target_fixup_format;
176 uint32_t fixup_swizzle;
177
178 unsigned id; /* track lost context events */
179 };
180
181 struct i915_blend_state {
182 unsigned iab;
183 unsigned modes4;
184 unsigned LIS5;
185 unsigned LIS6;
186 };
187
188 struct i915_depth_stencil_state {
189 unsigned stencil_modes4;
190 unsigned bfo[2];
191 unsigned stencil_LIS5;
192 unsigned depth_LIS6;
193 };
194
195 struct i915_rasterizer_state {
196 struct pipe_rasterizer_state templ;
197
198 unsigned light_twoside : 1;
199 unsigned st;
200 enum interp_mode color_interp;
201
202 unsigned LIS4;
203 unsigned LIS7;
204 unsigned sc[1];
205
206 union { float f; unsigned u; } ds[2];
207 };
208
209 struct i915_sampler_state {
210 struct pipe_sampler_state templ;
211 unsigned state[3];
212 unsigned minlod;
213 unsigned maxlod;
214 };
215
216 struct i915_velems_state {
217 unsigned count;
218 struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
219 };
220
221
222 struct i915_context {
223 struct pipe_context base;
224
225 struct i915_winsys *iws;
226
227 struct draw_context *draw;
228
229 /* The most recent drawing state as set by the driver:
230 */
231 const struct i915_blend_state *blend;
232 const struct i915_sampler_state *sampler[PIPE_MAX_SAMPLERS];
233 struct pipe_sampler_state *vertex_samplers[PIPE_MAX_SAMPLERS];
234 const struct i915_depth_stencil_state *depth_stencil;
235 const struct i915_rasterizer_state *rasterizer;
236
237 struct i915_fragment_shader *fs;
238
239 struct pipe_blend_color blend_color;
240 struct pipe_stencil_ref stencil_ref;
241 struct pipe_clip_state clip;
242 struct pipe_resource *constants[PIPE_SHADER_TYPES];
243 struct pipe_framebuffer_state framebuffer;
244 struct pipe_poly_stipple poly_stipple;
245 struct pipe_scissor_state scissor;
246 struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
247 struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_SAMPLERS];
248 struct pipe_viewport_state viewport;
249 struct pipe_index_buffer index_buffer;
250
251 unsigned dirty;
252
253 struct pipe_resource *mapped_vs_tex[PIPE_MAX_SAMPLERS];
254 struct i915_winsys_buffer* mapped_vs_tex_buffer[PIPE_MAX_SAMPLERS];
255
256 unsigned num_samplers;
257 unsigned num_fragment_sampler_views;
258 unsigned num_vertex_samplers;
259 unsigned num_vertex_sampler_views;
260
261 struct i915_winsys_batchbuffer *batch;
262
263 /** Vertex buffer */
264 struct i915_winsys_buffer *vbo;
265 size_t vbo_offset;
266 unsigned vbo_flushed;
267
268 struct i915_state current;
269 unsigned hardware_dirty;
270 unsigned immediate_dirty : I915_MAX_IMMEDIATE;
271 unsigned dynamic_dirty : I915_MAX_DYNAMIC;
272 unsigned static_dirty : 4;
273 unsigned flush_dirty : 2;
274
275 struct i915_winsys_buffer *validation_buffers[2 + 1 + I915_TEX_UNITS];
276 int num_validation_buffers;
277
278 struct util_slab_mempool transfer_pool;
279 struct util_slab_mempool texture_transfer_pool;
280
281 /* state for tracking flushes */
282 int last_fired_vertices;
283 int fired_vertices;
284 int queued_vertices;
285
286 /** blitter/hw-clear */
287 struct blitter_context* blitter;
288
289 /** State tracking needed by u_blitter for save/restore. */
290 void *saved_fs;
291 void (*saved_bind_fs_state)(struct pipe_context *pipe, void *shader);
292 void *saved_vs;
293 struct pipe_clip_state saved_clip;
294 struct i915_velems_state *saved_velems;
295 unsigned saved_nr_vertex_buffers;
296 struct pipe_vertex_buffer saved_vertex_buffers[PIPE_MAX_ATTRIBS];
297 unsigned saved_nr_samplers;
298 void *saved_samplers[PIPE_MAX_SAMPLERS];
299 void (*saved_bind_sampler_states)(struct pipe_context *pipe,
300 unsigned num, void **sampler);
301 unsigned saved_nr_sampler_views;
302 struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS];
303 void (*saved_set_sampler_views)(struct pipe_context *pipe,
304 unsigned num, struct pipe_sampler_view **views);
305 };
306
307 /* A flag for each state_tracker state object:
308 */
309 #define I915_NEW_VIEWPORT 0x1
310 #define I915_NEW_RASTERIZER 0x2
311 #define I915_NEW_FS 0x4
312 #define I915_NEW_BLEND 0x8
313 #define I915_NEW_CLIP 0x10
314 #define I915_NEW_SCISSOR 0x20
315 #define I915_NEW_STIPPLE 0x40
316 #define I915_NEW_FRAMEBUFFER 0x80
317 #define I915_NEW_ALPHA_TEST 0x100
318 #define I915_NEW_DEPTH_STENCIL 0x200
319 #define I915_NEW_SAMPLER 0x400
320 #define I915_NEW_SAMPLER_VIEW 0x800
321 #define I915_NEW_VS_CONSTANTS 0x1000
322 #define I915_NEW_FS_CONSTANTS 0x2000
323 #define I915_NEW_GS_CONSTANTS 0x4000
324 #define I915_NEW_VBO 0x8000
325 #define I915_NEW_VS 0x10000
326
327
328 /* Driver's internally generated state flags:
329 */
330 #define I915_NEW_VERTEX_FORMAT 0x10000
331
332
333 /* Dirty flags for hardware emit
334 */
335 #define I915_HW_STATIC (1<<I915_CACHE_STATIC)
336 #define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC)
337 #define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER)
338 #define I915_HW_MAP (1<<I915_CACHE_MAP)
339 #define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM)
340 #define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS)
341 #define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0))
342 #define I915_HW_INVARIANT (1<<(I915_MAX_CACHE+1))
343 #define I915_HW_FLUSH (1<<(I915_MAX_CACHE+1))
344
345 /* hw flush handling */
346 #define I915_FLUSH_CACHE 1
347 #define I915_PIPELINE_FLUSH 2
348
349 /* split up static state */
350 #define I915_DST_BUF_COLOR 1
351 #define I915_DST_BUF_DEPTH 2
352 #define I915_DST_VARS 4
353 #define I915_DST_RECT 8
354
355 static INLINE
i915_set_flush_dirty(struct i915_context * i915,unsigned flush)356 void i915_set_flush_dirty(struct i915_context *i915, unsigned flush)
357 {
358 i915->hardware_dirty |= I915_HW_FLUSH;
359 i915->flush_dirty |= flush;
360 }
361
362
363 /***********************************************************************
364 * i915_prim_emit.c:
365 */
366 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
367
368
369 /***********************************************************************
370 * i915_prim_vbuf.c:
371 */
372 struct draw_stage *i915_draw_vbuf_stage( struct i915_context *i915 );
373
374
375 /***********************************************************************
376 * i915_state.c:
377 */
378 void i915_prepare_vertex_sampling(struct i915_context *i915);
379 void i915_cleanup_vertex_sampling(struct i915_context *i915);
380
381
382
383 /***********************************************************************
384 * i915_state_emit.c:
385 */
386 void i915_emit_hardware_state(struct i915_context *i915 );
387
388
389
390 /***********************************************************************
391 * i915_clear.c:
392 */
393 void i915_clear_blitter(struct pipe_context *pipe, unsigned buffers,
394 const union pipe_color_union *color,
395 double depth, unsigned stencil);
396 void i915_clear_render(struct pipe_context *pipe, unsigned buffers,
397 const union pipe_color_union *color,
398 double depth, unsigned stencil);
399 void i915_clear_emit(struct pipe_context *pipe, unsigned buffers,
400 const union pipe_color_union *color,
401 double depth, unsigned stencil,
402 unsigned destx, unsigned desty, unsigned width, unsigned height);
403
404
405 /***********************************************************************
406 *
407 */
408 void i915_init_state_functions( struct i915_context *i915 );
409 void i915_init_fixup_state_functions( struct i915_context *i915 );
410 void i915_init_flush_functions( struct i915_context *i915 );
411 void i915_init_string_functions( struct i915_context *i915 );
412
413
414 /************************************************************************
415 * i915_context.c
416 */
417 struct pipe_context *i915_create_context(struct pipe_screen *screen,
418 void *priv);
419
420
421 /***********************************************************************
422 * Inline conversion functions. These are better-typed than the
423 * macros used previously:
424 */
425 static INLINE struct i915_context *
i915_context(struct pipe_context * pipe)426 i915_context( struct pipe_context *pipe )
427 {
428 return (struct i915_context *)pipe;
429 }
430
431
432 #endif
433