src/mesa/pipe/i915simple/i915_context.h

   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_state.h"
  34
  35
  36
  37 #define I915_TEX_UNITS 8
  38
  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
  54
  55
  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
  65
  66 /* These must mach the order of LI0_STATE_* bits, as they will be used
  67  * to generate hardware packets:
  68  */
  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
  76
  77
  78 struct i915_cache_context;
  79
  80 /* Use to calculate differences between state emitted to hardware and
  81  * current driver-calculated state.
  82  */
  83 struct i915_state
  84 {
  85    GLuint immediate[I915_MAX_IMMEDIATE];
  86    GLuint dynamic[I915_MAX_DYNAMIC];
  87
  88    GLuint id;                   /* track lost context events */
  89 };
  90
  91
  92
  93 struct i915_context
  94 {
  95    struct pipe_context pipe;
  96    struct i915_winsys *winsys;
  97    struct draw_context *draw;
  98
  99    /* The most recent drawing state as set by the driver:
 100     */
 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;
 116    GLuint dirty;
 117
 118    GLuint *batch_start;
 119
 120    struct i915_state current;
 121    GLuint hardware_dirty;
 122
 123    GLuint debug;
 124
 125    struct {
 126       unsigned is_i945:1;
 127    } flags;
 128 };
 129
 130 /* A flag for each state_tracker state object:
 131  */
 132 #define I915_NEW_VIEWPORT      0x1
 133 #define I915_NEW_SETUP         0x2
 134 #define I915_NEW_FS            0x4
 135 #define I915_NEW_BLEND         0x8
 136 #define I915_NEW_CLIP         0x10
 137 #define I915_NEW_SCISSOR      0x20
 138 #define I915_NEW_STIPPLE      0x40
 139 #define I915_NEW_FRAMEBUFFER  0x80
 140 #define I915_NEW_ALPHA_TEST  0x100
 141 #define I915_NEW_DEPTH_TEST  0x200
 142 #define I915_NEW_SAMPLER     0x400
 143 #define I915_NEW_TEXTURE     0x800
 144 #define I915_NEW_STENCIL    0x1000
 145
 146 /* Driver's internally generated state flags:
 147  */
 148 #define I915_NEW_VERTEX_FORMAT    0x10000
 149
 150
 151 /* Dirty flags for hardware emit
 152  */
 153 #define I915_HW_STATIC            (1<<I915_CACHE_STATIC)
 154 #define I915_HW_DYNAMIC           (1<<I915_CACHE_DYNAMIC)
 155 #define I915_HW_SAMPLER           (1<<I915_CACHE_SAMPLER)
 156 #define I915_HW_MAP               (1<<I915_CACHE_MAP)
 157 #define I915_HW_PROGRAM           (1<<I915_CACHE_PROGRAM)
 158 #define I915_HW_CONSTANTS         (1<<I915_CACHE_CONSTANTS)
 159 #define I915_HW_IMMEDIATE         (1<<(I915_MAX_CACHE+0))
 160 #define I915_HW_INVARIENT         (1<<(I915_MAX_CACHE+1))
 161
 162
 163 /***********************************************************************
 164  * i915_prim_emit.c:
 165  */
 166 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
 167
 168
 169 /***********************************************************************
 170  * i915_state_emit.c:
 171  */
 172 void i915_emit_hardware_state(struct i915_context *i915 );
 173 unsigned *i915_passthrough_program( unsigned *dwords );
 174
 175
 176
 177 /***********************************************************************
 178  * i915_clear.c:
 179  */
 180 void i915_clear(struct pipe_context *pipe, struct pipe_surface *ps,
 181                 GLuint clearValue);
 182
 183
 184 /***********************************************************************
 185  * i915_region.c:
 186  */
 187 void i915_init_region_functions( struct i915_context *i915 );
 188 void i915_init_surface_functions( struct i915_context *i915 );
 189 void i915_init_state_functions( struct i915_context *i915 );
 190 void i915_init_flush_functions( struct i915_context *i915 );
 191
 192
 193
 194 /***********************************************************************
 195  * Inline conversion functions.  These are better-typed than the
 196  * macros used previously:
 197  */
 198 static INLINE struct i915_context *
 199 i915_context( struct pipe_context *pipe )
 200 {
 201    return (struct i915_context *)pipe;
 202 }
 203
 204
 205
 206 #endif