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_state.h"
37 #define I915_TEX_UNITS 8
39 #define I915_DYNAMIC_MODES4 0
40 #define I915_DYNAMIC_DEPTHSCALE_0 1 /* just the header */
41 #define I915_DYNAMIC_DEPTHSCALE_1 2
42 #define I915_DYNAMIC_IAB 3
43 #define I915_DYNAMIC_BC_0 4 /* just the header */
44 #define I915_DYNAMIC_BC_1 5
45 #define I915_DYNAMIC_BFO_0 6
46 #define I915_DYNAMIC_BFO_1 7
47 #define I915_DYNAMIC_STP_0 8
48 #define I915_DYNAMIC_STP_1 9
49 #define I915_DYNAMIC_SC_ENA_0 10
50 #define I915_DYNAMIC_SC_RECT_0 11
51 #define I915_DYNAMIC_SC_RECT_1 12
52 #define I915_DYNAMIC_SC_RECT_2 13
53 #define I915_MAX_DYNAMIC 14
56 #define I915_IMMEDIATE_S0 0
57 #define I915_IMMEDIATE_S1 1
58 #define I915_IMMEDIATE_S2 2
59 #define I915_IMMEDIATE_S3 3
60 #define I915_IMMEDIATE_S4 4
61 #define I915_IMMEDIATE_S5 5
62 #define I915_IMMEDIATE_S6 6
63 #define I915_IMMEDIATE_S7 7
64 #define I915_MAX_IMMEDIATE 8
66 /* These must mach the order of LI0_STATE_* bits, as they will be used
67 * to generate hardware packets:
69 #define I915_CACHE_STATIC 0
70 #define I915_CACHE_DYNAMIC 1 /* handled specially */
71 #define I915_CACHE_SAMPLER 2
72 #define I915_CACHE_MAP 3
73 #define I915_CACHE_PROGRAM 4
74 #define I915_CACHE_CONSTANTS 5
75 #define I915_MAX_CACHE 6
78 struct i915_cache_context
;
80 /* Use to calculate differences between state emitted to hardware and
81 * current driver-calculated state.
85 GLuint immediate
[I915_MAX_IMMEDIATE
];
86 GLuint dynamic
[I915_MAX_DYNAMIC
];
88 GLuint id
; /* track lost context events */
95 struct pipe_context pipe
;
96 struct i915_winsys
*winsys
;
97 struct draw_context
*draw
;
99 /* The most recent drawing state as set by the driver:
101 struct pipe_alpha_test_state alpha_test
;
102 struct pipe_blend_state blend
;
103 struct pipe_blend_color blend_color
;
104 struct pipe_clear_color_state clear_color
;
105 struct pipe_clip_state clip
;
106 struct pipe_depth_state depth_test
;
107 struct pipe_framebuffer_state framebuffer
;
108 struct pipe_fs_state fs
;
109 struct pipe_poly_stipple poly_stipple
;
110 struct pipe_scissor_state scissor
;
111 struct pipe_sampler_state sampler
[PIPE_MAX_SAMPLERS
];
112 struct pipe_setup_state setup
;
113 struct pipe_stencil_state stencil
;
114 struct pipe_mipmap_tree
*texture
[PIPE_MAX_SAMPLERS
];
115 struct pipe_viewport_state viewport
;
120 struct i915_state current
;
121 GLuint hardware_dirty
;
131 /* A flag for each state_tracker state object:
133 #define I915_NEW_VIEWPORT 0x1
134 #define I915_NEW_SETUP 0x2
135 #define I915_NEW_FS 0x4
136 #define I915_NEW_BLEND 0x8
137 #define I915_NEW_CLIP 0x10
138 #define I915_NEW_SCISSOR 0x20
139 #define I915_NEW_STIPPLE 0x40
140 #define I915_NEW_FRAMEBUFFER 0x80
141 #define I915_NEW_ALPHA_TEST 0x100
142 #define I915_NEW_DEPTH_TEST 0x200
143 #define I915_NEW_SAMPLER 0x400
144 #define I915_NEW_TEXTURE 0x800
145 #define I915_NEW_STENCIL 0x1000
147 /* Driver's internally generated state flags:
149 #define I915_NEW_VERTEX_FORMAT 0x10000
152 /* Dirty flags for hardware emit
154 #define I915_HW_STATIC (1<<I915_CACHE_STATIC)
155 #define I915_HW_DYNAMIC (1<<I915_CACHE_DYNAMIC)
156 #define I915_HW_SAMPLER (1<<I915_CACHE_SAMPLER)
157 #define I915_HW_MAP (1<<I915_CACHE_MAP)
158 #define I915_HW_PROGRAM (1<<I915_CACHE_PROGRAM)
159 #define I915_HW_CONSTANTS (1<<I915_CACHE_CONSTANTS)
160 #define I915_HW_IMMEDIATE (1<<(I915_MAX_CACHE+0))
161 #define I915_HW_INVARIENT (1<<(I915_MAX_CACHE+1))
164 /***********************************************************************
167 struct draw_stage
*i915_draw_render_stage( struct i915_context
*i915
);
170 /***********************************************************************
173 void i915_emit_hardware_state(struct i915_context
*i915
);
174 unsigned *i915_passthrough_program( unsigned *dwords
);
178 /***********************************************************************
181 void i915_clear(struct pipe_context
*pipe
, struct pipe_surface
*ps
,
185 /***********************************************************************
188 void i915_init_region_functions( struct i915_context
*i915
);
189 void i915_init_surface_functions( struct i915_context
*i915
);
190 void i915_init_state_functions( struct i915_context
*i915
);
191 void i915_init_flush_functions( struct i915_context
*i915
);
192 void i915_init_string_functions( struct i915_context
*i915
);
196 /***********************************************************************
197 * Inline conversion functions. These are better-typed than the
198 * macros used previously:
200 static INLINE
struct i915_context
*
201 i915_context( struct pipe_context
*pipe
)
203 return (struct i915_context
*)pipe
;