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 struct pipe_rasterizer_state templ
;
193 unsigned light_twoside
: 1;
195 enum interp_mode color_interp
;
201 union { float f
; unsigned u
; } ds
[2];
204 struct i915_sampler_state
{
205 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
;