1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #ifndef I915_CONTEXT_H
29 #define I915_CONTEXT_H
32 #include "pipe/p_context.h"
33 #include "pipe/p_defines.h"
34 #include "pipe/p_state.h"
36 #include "draw/draw_vertex.h"
38 #include "tgsi/tgsi_scan.h"
40 #include "util/u_slab.h"
41 #include "util/u_blitter.h"
45 struct i915_winsys_buffer;
46 struct i915_winsys_batchbuffer;
49 #define I915_TEX_UNITS 8
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
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
78 /* These must mach the order of LI0_STATE_* bits, as they will be used
79 * to generate hardware packets:
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
89 #define I915_MAX_CONSTANT 32
92 /** See constant_flags[] below */
93 #define I915_CONSTFLAG_USER 0x1f
97 * Subclass of pipe_shader_state
99 struct i915_fragment_shader
101 struct pipe_shader_state state;
103 struct tgsi_shader_info info;
105 struct draw_fragment_shader *draw_data;
111 * constants introduced during translation.
112 * These are placed at the end of the constant buffer and grow toward
113 * the beginning (eg: slot 31, 30 29, ...)
114 * User-provided constants start at 0.
115 * This allows both types of constants to co-exist (until there's too many)
116 * and doesn't require regenerating/changing the fragment program to
117 * shuffle constants around.
120 float constants[I915_MAX_CONSTANT][4];
123 * Status of each constant
124 * if I915_CONSTFLAG_PARAM, the value must be taken from the corresponding
125 * slot of the user's constant buffer. (set by pipe->set_constant_buffer())
126 * Else, the bitmask indicates which components are occupied by immediates.
128 ubyte constant_flags[I915_MAX_CONSTANT];
131 * The mapping between generics and hw texture coords.
132 * We need to share this between the vertex and fragment stages.
134 int generic_mapping[I915_TEX_UNITS];
138 struct i915_cache_context;
140 /* Use to calculate differences between state emitted to hardware and
141 * current driver-calculated state.
145 unsigned immediate[I915_MAX_IMMEDIATE];
146 unsigned dynamic[I915_MAX_DYNAMIC];
148 /** number of constants passed in through a constant buffer */
149 uint num_user_constants[PIPE_SHADER_TYPES];
151 /* texture sampler state */
152 unsigned sampler[I915_TEX_UNITS][3];
153 unsigned sampler_enable_flags;
154 unsigned sampler_enable_nr;
156 /* texture image buffers */
157 unsigned texbuffer[I915_TEX_UNITS][2];
159 /** Describes the current hardware vertex layout */
160 struct vertex_info vertex_info;
162 /* static state (dst/depth buffer state) */
163 struct i915_winsys_buffer *cbuf_bo;
165 struct i915_winsys_buffer *depth_bo;
166 unsigned depth_flags;
167 unsigned dst_buf_vars;
168 uint32_t draw_offset;
170 unsigned need_target_fixup;
171 uint32_t fixup_swizzle;
173 unsigned id; /* track lost context events */
176 struct i915_blend_state {
183 struct i915_depth_stencil_state {
184 unsigned stencil_modes4;
186 unsigned stencil_LIS5;
190 struct i915_rasterizer_state {
191 unsigned light_twoside : 1;
193 enum interp_mode color_interp;
199 struct pipe_rasterizer_state templ;
201 union { float f; unsigned u; } ds[2];
204 struct i915_sampler_state {
206 const struct pipe_sampler_state *templ;
211 struct i915_velems_state {
213 struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
217 struct i915_context {
218 struct pipe_context base;
220 struct i915_winsys *iws;
222 struct draw_context *draw;
224 /* The most recent drawing state as set by the driver:
226 const struct i915_blend_state *blend;
227 const struct i915_sampler_state *sampler[PIPE_MAX_SAMPLERS];
228 struct pipe_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS];
229 const struct i915_depth_stencil_state *depth_stencil;
230 const struct i915_rasterizer_state *rasterizer;
232 struct i915_fragment_shader *fs;
234 struct pipe_blend_color blend_color;
235 struct pipe_stencil_ref stencil_ref;
236 struct pipe_clip_state clip;
237 struct pipe_resource *constants[PIPE_SHADER_TYPES];
238 struct pipe_framebuffer_state framebuffer;
239 struct pipe_poly_stipple poly_stipple;
240 struct pipe_scissor_state scissor;
241 struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
242 struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_SAMPLERS];
243 struct pipe_viewport_state viewport;
244 struct pipe_index_buffer index_buffer;
248 struct pipe_resource *mapped_vs_tex[PIPE_MAX_VERTEX_SAMPLERS];
249 struct i915_winsys_buffer* mapped_vs_tex_buffer[PIPE_MAX_VERTEX_SAMPLERS];
251 unsigned num_samplers;
252 unsigned num_fragment_sampler_views;
253 unsigned num_vertex_samplers;
254 unsigned num_vertex_sampler_views;
256 struct i915_winsys_batchbuffer *batch;
259 struct i915_winsys_buffer *vbo;
261 unsigned vbo_flushed;
263 struct i915_state current;
264 unsigned hardware_dirty;
265 unsigned immediate_dirty : I915_MAX_IMMEDIATE;
266 unsigned dynamic_dirty : I915_MAX_DYNAMIC;
267 unsigned static_dirty : 4;
268 unsigned flush_dirty : 2;
270 struct i915_winsys_buffer *validation_buffers[2 + 1 + I915_TEX_UNITS];
271 int num_validation_buffers;
273 struct util_slab_mempool transfer_pool;
274 struct util_slab_mempool texture_transfer_pool;
276 /* state for tracking flushes */
277 int last_fired_vertices;
281 /** blitter/hw-clear */
282 struct blitter_context* blitter;
284 /** State tracking needed by u_blitter for save/restore. */
286 void (*saved_bind_fs_state)(struct pipe_context *pipe, void *shader);
288 struct pipe_clip_state saved_clip;
289 struct i915_velems_state *saved_velems;
290 unsigned saved_nr_vertex_buffers;
291 struct pipe_vertex_buffer saved_vertex_buffers[PIPE_MAX_ATTRIBS];
292 unsigned saved_nr_samplers;
293 void *saved_samplers[PIPE_MAX_SAMPLERS];
294 void (*saved_bind_sampler_states)(struct pipe_context *pipe,
295 unsigned num, void **sampler);
296 unsigned saved_nr_sampler_views;
297 struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS];
298 void (*saved_set_sampler_views)(struct pipe_context *pipe,
299 unsigned num, struct pipe_sampler_view **views);
302 /* A flag for each state_tracker state object:
304 #define I915_NEW_VIEWPORT 0x1
305 #define I915_NEW_RASTERIZER 0x2
306 #define I915_NEW_FS 0x4
307 #define I915_NEW_BLEND 0x8
308 #define I915_NEW_CLIP 0x10
309 #define I915_NEW_SCISSOR 0x20
310 #define I915_NEW_STIPPLE 0x40
311 #define I915_NEW_FRAMEBUFFER 0x80
312 #define I915_NEW_ALPHA_TEST 0x100
313 #define I915_NEW_DEPTH_STENCIL 0x200
314 #define I915_NEW_SAMPLER 0x400
315 #define I915_NEW_SAMPLER_VIEW 0x800
316 #define I915_NEW_VS_CONSTANTS 0x1000
317 #define I915_NEW_FS_CONSTANTS 0x2000
318 #define I915_NEW_GS_CONSTANTS 0x4000
319 #define I915_NEW_VBO 0x8000
320 #define I915_NEW_VS 0x10000
323 /* Driver's internally generated state flags:
325 #define I915_NEW_VERTEX_FORMAT 0x10000
328 /* Dirty flags for hardware emit
330 #define I915_HW_STATIC (1<<I915_CACHE_STATIC)
331 #define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC)
332 #define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER)
333 #define I915_HW_MAP (1<<I915_CACHE_MAP)
334 #define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM)
335 #define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS)
336 #define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0))
337 #define I915_HW_INVARIANT (1<<(I915_MAX_CACHE+1))
338 #define I915_HW_FLUSH (1<<(I915_MAX_CACHE+1))
340 /* hw flush handling */
341 #define I915_FLUSH_CACHE 1
342 #define I915_PIPELINE_FLUSH 2
344 /* split up static state */
345 #define I915_DST_BUF_COLOR 1
346 #define I915_DST_BUF_DEPTH 2
347 #define I915_DST_VARS 4
348 #define I915_DST_RECT 8
351 void i915_set_flush_dirty(struct i915_context *i915, unsigned flush)
353 i915->hardware_dirty |= I915_HW_FLUSH;
354 i915->flush_dirty |= flush;
358 /***********************************************************************
361 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
364 /***********************************************************************
367 struct draw_stage *i915_draw_vbuf_stage( struct i915_context *i915 );
370 /***********************************************************************
373 void i915_prepare_vertex_sampling(struct i915_context *i915);
374 void i915_cleanup_vertex_sampling(struct i915_context *i915);
378 /***********************************************************************
381 void i915_emit_hardware_state(struct i915_context *i915 );
385 /***********************************************************************
388 void i915_clear_blitter(struct pipe_context *pipe, unsigned buffers,
389 const union pipe_color_union *color,
390 double depth, unsigned stencil);
391 void i915_clear_render(struct pipe_context *pipe, unsigned buffers,
392 const union pipe_color_union *color,
393 double depth, unsigned stencil);
394 void i915_clear_emit(struct pipe_context *pipe, unsigned buffers,
395 const union pipe_color_union *color,
396 double depth, unsigned stencil,
397 unsigned destx, unsigned desty, unsigned width, unsigned height);
400 /***********************************************************************
403 void i915_init_state_functions( struct i915_context *i915 );
404 void i915_init_fixup_state_functions( struct i915_context *i915 );
405 void i915_init_flush_functions( struct i915_context *i915 );
406 void i915_init_string_functions( struct i915_context *i915 );
409 /************************************************************************
412 struct pipe_context *i915_create_context(struct pipe_screen *screen,
416 /***********************************************************************
417 * Inline conversion functions. These are better-typed than the
418 * macros used previously:
420 static INLINE struct i915_context *
421 i915_context( struct pipe_context *pipe )
423 return (struct i915_context *)pipe;