1 /**************************************************************************
2 *
3 * Copyright 2003 VMware, Inc.
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 VMWARE 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/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
159 /* texture image buffers */
160 unsigned texbuffer[I915_TEX_UNITS][3];
161
162 /** Describes the current hardware vertex layout */
163 struct vertex_info vertex_info;
164
165 /* static state (dst/depth buffer state) */
166 struct i915_winsys_buffer *cbuf_bo;
167 unsigned cbuf_flags;
168 struct i915_winsys_buffer *depth_bo;
169 unsigned depth_flags;
170 unsigned dst_buf_vars;
171 uint32_t draw_offset;
172 uint32_t draw_size;
173 uint32_t target_fixup_format;
174 uint32_t fixup_swizzle;
175
176 unsigned id; /* track lost context events */
177 };
178
179 struct i915_blend_state {
180 unsigned iab;
181 unsigned modes4;
182 unsigned LIS5;
183 unsigned LIS6;
184 };
185
186 struct i915_depth_stencil_state {
187 unsigned stencil_modes4;
188 unsigned bfo[2];
189 unsigned stencil_LIS5;
190 unsigned depth_LIS6;
191 };
192
193 struct i915_rasterizer_state {
194 struct pipe_rasterizer_state templ;
195
196 unsigned light_twoside : 1;
197 unsigned st;
198
199 unsigned LIS4;
200 unsigned LIS7;
201 unsigned sc[1];
202
203 union { float f; unsigned u; } ds[2];
204 };
205
206 struct i915_sampler_state {
207 struct pipe_sampler_state templ;
208 unsigned state[3];
209 unsigned minlod;
210 unsigned maxlod;
211 };
212
213 struct i915_velems_state {
214 unsigned count;
215 struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
216 };
217
218
219 struct i915_context {
220 struct pipe_context base;
221
222 struct i915_winsys *iws;
223
224 struct draw_context *draw;
225
226 /* The most recent drawing state as set by the driver:
227 */
228 const struct i915_blend_state *blend;
229 const struct i915_sampler_state *fragment_sampler[PIPE_MAX_SAMPLERS];
230 struct pipe_sampler_state *vertex_samplers[PIPE_MAX_SAMPLERS];
231 const struct i915_depth_stencil_state *depth_stencil;
232 const struct i915_rasterizer_state *rasterizer;
233
234 struct i915_fragment_shader *fs;
235
236 void *vs;
237
238 struct i915_velems_state *velems;
239 unsigned nr_vertex_buffers;
240 struct pipe_vertex_buffer vertex_buffers[PIPE_MAX_ATTRIBS];
241
242 struct pipe_blend_color blend_color;
243 struct pipe_stencil_ref stencil_ref;
244 struct pipe_clip_state clip;
245 struct pipe_resource *constants[PIPE_SHADER_TYPES];
246 struct pipe_framebuffer_state framebuffer;
247 struct pipe_poly_stipple poly_stipple;
248 struct pipe_scissor_state scissor;
249 struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
250 struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_SAMPLERS];
251 struct pipe_viewport_state viewport;
252
253 unsigned dirty;
254
255 struct pipe_resource *mapped_vs_tex[PIPE_MAX_SAMPLERS];
256 struct i915_winsys_buffer* mapped_vs_tex_buffer[PIPE_MAX_SAMPLERS];
257
258 unsigned num_samplers;
259 unsigned num_fragment_sampler_views;
260 unsigned num_vertex_samplers;
261 unsigned num_vertex_sampler_views;
262
263 struct i915_winsys_batchbuffer *batch;
264
265 /** Vertex buffer */
266 struct i915_winsys_buffer *vbo;
267 size_t vbo_offset;
268 unsigned vbo_flushed;
269
270 struct i915_state current;
271 unsigned hardware_dirty;
272 unsigned immediate_dirty : I915_MAX_IMMEDIATE;
273 unsigned dynamic_dirty : I915_MAX_DYNAMIC;
274 unsigned static_dirty : 4;
275 unsigned flush_dirty : 2;
276
277 struct i915_winsys_buffer *validation_buffers[2 + 1 + I915_TEX_UNITS];
278 int num_validation_buffers;
279
280 struct slab_mempool transfer_pool;
281 struct slab_mempool texture_transfer_pool;
282
283 /* state for tracking flushes */
284 int last_fired_vertices;
285 int fired_vertices;
286 int queued_vertices;
287
288 /** blitter/hw-clear */
289 struct blitter_context* blitter;
290 };
291
292 /* A flag for each state_tracker state object:
293 */
294 #define I915_NEW_VIEWPORT 0x1
295 #define I915_NEW_RASTERIZER 0x2
296 #define I915_NEW_FS 0x4
297 #define I915_NEW_BLEND 0x8
298 #define I915_NEW_CLIP 0x10
299 #define I915_NEW_SCISSOR 0x20
300 #define I915_NEW_STIPPLE 0x40
301 #define I915_NEW_FRAMEBUFFER 0x80
302 #define I915_NEW_ALPHA_TEST 0x100
303 #define I915_NEW_DEPTH_STENCIL 0x200
304 #define I915_NEW_SAMPLER 0x400
305 #define I915_NEW_SAMPLER_VIEW 0x800
306 #define I915_NEW_VS_CONSTANTS 0x1000
307 #define I915_NEW_FS_CONSTANTS 0x2000
308 #define I915_NEW_GS_CONSTANTS 0x4000
309 #define I915_NEW_VBO 0x8000
310 #define I915_NEW_VS 0x10000
311
312
313 /* Driver's internally generated state flags:
314 */
315 #define I915_NEW_VERTEX_FORMAT 0x10000
316
317
318 /* Dirty flags for hardware emit
319 */
320 #define I915_HW_STATIC (1<<I915_CACHE_STATIC)
321 #define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC)
322 #define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER)
323 #define I915_HW_MAP (1<<I915_CACHE_MAP)
324 #define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM)
325 #define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS)
326 #define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0))
327 #define I915_HW_INVARIANT (1<<(I915_MAX_CACHE+1))
328 #define I915_HW_FLUSH (1<<(I915_MAX_CACHE+1))
329
330 /* hw flush handling */
331 #define I915_FLUSH_CACHE 1
332 #define I915_PIPELINE_FLUSH 2
333
334 /* split up static state */
335 #define I915_DST_BUF_COLOR 1
336 #define I915_DST_BUF_DEPTH 2
337 #define I915_DST_VARS 4
338 #define I915_DST_RECT 8
339
340 static inline
i915_set_flush_dirty(struct i915_context * i915,unsigned flush)341 void i915_set_flush_dirty(struct i915_context *i915, unsigned flush)
342 {
343 i915->hardware_dirty |= I915_HW_FLUSH;
344 i915->flush_dirty |= flush;
345 }
346
347
348 /***********************************************************************
349 * i915_prim_emit.c:
350 */
351 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
352
353
354 /***********************************************************************
355 * i915_prim_vbuf.c:
356 */
357 struct draw_stage *i915_draw_vbuf_stage( struct i915_context *i915 );
358
359
360 /***********************************************************************
361 * i915_state.c:
362 */
363 void i915_prepare_vertex_sampling(struct i915_context *i915);
364 void i915_cleanup_vertex_sampling(struct i915_context *i915);
365
366
367
368 /***********************************************************************
369 * i915_state_emit.c:
370 */
371 void i915_emit_hardware_state(struct i915_context *i915 );
372
373
374
375 /***********************************************************************
376 * i915_clear.c:
377 */
378 void i915_clear_blitter(struct pipe_context *pipe, unsigned buffers,
379 const union pipe_color_union *color,
380 double depth, unsigned stencil);
381 void i915_clear_render(struct pipe_context *pipe, unsigned buffers,
382 const union pipe_color_union *color,
383 double depth, unsigned stencil);
384 void i915_clear_emit(struct pipe_context *pipe, unsigned buffers,
385 const union pipe_color_union *color,
386 double depth, unsigned stencil,
387 unsigned destx, unsigned desty, unsigned width, unsigned height);
388
389
390 /***********************************************************************
391 *
392 */
393 void i915_init_state_functions( struct i915_context *i915 );
394 void i915_init_flush_functions( struct i915_context *i915 );
395 void i915_init_string_functions( struct i915_context *i915 );
396
397
398 /************************************************************************
399 * i915_context.c
400 */
401 struct pipe_context *i915_create_context(struct pipe_screen *screen,
402 void *priv, unsigned flags);
403
404
405 /***********************************************************************
406 * Inline conversion functions. These are better-typed than the
407 * macros used previously:
408 */
409 static inline struct i915_context *
i915_context(struct pipe_context * pipe)410 i915_context( struct pipe_context *pipe )
411 {
412 return (struct i915_context *)pipe;
413 }
414
415
416 #endif
417