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    unsigned immediate[I915_MAX_IMMEDIATE];
  86    unsigned dynamic[I915_MAX_DYNAMIC];
  87
  88    unsigned 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_shader_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    struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
 117
 118    unsigned dirty;
 119
 120    unsigned *batch_start;
 121
 122    struct i915_state current;
 123    unsigned hardware_dirty;
 124
 125    unsigned debug;
 126    unsigned pci_id;
 127
 128    struct {
 129       unsigned is_i945:1;
 130    } flags;
 131 };
 132
 133 /* A flag for each state_tracker state object:
 134  */
 135 #define I915_NEW_VIEWPORT      0x1
 136 #define I915_NEW_SETUP         0x2
 137 #define I915_NEW_FS            0x4
 138 #define I915_NEW_BLEND         0x8
 139 #define I915_NEW_CLIP         0x10
 140 #define I915_NEW_SCISSOR      0x20
 141 #define I915_NEW_STIPPLE      0x40
 142 #define I915_NEW_FRAMEBUFFER  0x80
 143 #define I915_NEW_ALPHA_TEST  0x100
 144 #define I915_NEW_DEPTH_TEST  0x200
 145 #define I915_NEW_SAMPLER     0x400
 146 #define I915_NEW_TEXTURE     0x800
 147 #define I915_NEW_STENCIL    0x1000
 148
 149 /* Driver's internally generated state flags:
 150  */
 151 #define I915_NEW_VERTEX_FORMAT    0x10000
 152
 153
 154 /* Dirty flags for hardware emit
 155  */
 156 #define I915_HW_STATIC            (1<<I915_CACHE_STATIC)
 157 #define I915_HW_DYNAMIC           (1<<I915_CACHE_DYNAMIC)
 158 #define I915_HW_SAMPLER           (1<<I915_CACHE_SAMPLER)
 159 #define I915_HW_MAP               (1<<I915_CACHE_MAP)
 160 #define I915_HW_PROGRAM           (1<<I915_CACHE_PROGRAM)
 161 #define I915_HW_CONSTANTS         (1<<I915_CACHE_CONSTANTS)
 162 #define I915_HW_IMMEDIATE         (1<<(I915_MAX_CACHE+0))
 163 #define I915_HW_INVARIENT         (1<<(I915_MAX_CACHE+1))
 164
 165
 166 /***********************************************************************
 167  * i915_prim_emit.c:
 168  */
 169 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
 170
 171
 172 /***********************************************************************
 173  * i915_state_emit.c:
 174  */
 175 void i915_emit_hardware_state(struct i915_context *i915 );
 176 unsigned *i915_passthrough_program( unsigned *dwords );
 177
 178
 179
 180 /***********************************************************************
 181  * i915_clear.c:
 182  */
 183 void i915_clear(struct pipe_context *pipe, struct pipe_surface *ps,
 184                 unsigned clearValue);
 185
 186
 187 /***********************************************************************
 188  * i915_region.c:
 189  */
 190 void i915_init_region_functions( struct i915_context *i915 );
 191 void i915_init_surface_functions( struct i915_context *i915 );
 192 void i915_init_state_functions( struct i915_context *i915 );
 193 void i915_init_flush_functions( struct i915_context *i915 );
 194 void i915_init_string_functions( struct i915_context *i915 );
 195
 196
 197
 198 /***********************************************************************
 199  * Inline conversion functions.  These are better-typed than the
 200  * macros used previously:
 201  */
 202 static INLINE struct i915_context *
 203 i915_context( struct pipe_context *pipe )
 204 {
 205    return (struct i915_context *)pipe;
 206 }
 207
 208
 209
 210 #endif