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_defines.h"
  34 #include "pipe/p_state.h"
  35
  36 #include "pipe/draw/draw_vertex.h"
  37
  38
  39 #define I915_TEX_UNITS 8
  40
  41 #define I915_DYNAMIC_MODES4       0
  42 #define I915_DYNAMIC_DEPTHSCALE_0 1 /* just the header */
  43 #define I915_DYNAMIC_DEPTHSCALE_1 2
  44 #define I915_DYNAMIC_IAB          3
  45 #define I915_DYNAMIC_BC_0         4 /* just the header */
  46 #define I915_DYNAMIC_BC_1         5
  47 #define I915_DYNAMIC_BFO_0        6
  48 #define I915_DYNAMIC_BFO_1        7
  49 #define I915_DYNAMIC_STP_0        8
  50 #define I915_DYNAMIC_STP_1        9
  51 #define I915_DYNAMIC_SC_ENA_0     10
  52 #define I915_DYNAMIC_SC_RECT_0    11
  53 #define I915_DYNAMIC_SC_RECT_1    12
  54 #define I915_DYNAMIC_SC_RECT_2    13
  55 #define I915_MAX_DYNAMIC          14
  56
  57
  58 #define I915_IMMEDIATE_S0         0
  59 #define I915_IMMEDIATE_S1         1
  60 #define I915_IMMEDIATE_S2         2
  61 #define I915_IMMEDIATE_S3         3
  62 #define I915_IMMEDIATE_S4         4
  63 #define I915_IMMEDIATE_S5         5
  64 #define I915_IMMEDIATE_S6         6
  65 #define I915_IMMEDIATE_S7         7
  66 #define I915_MAX_IMMEDIATE        8
  67
  68 /* These must mach the order of LI0_STATE_* bits, as they will be used
  69  * to generate hardware packets:
  70  */
  71 #define I915_CACHE_STATIC         0
  72 #define I915_CACHE_DYNAMIC        1 /* handled specially */
  73 #define I915_CACHE_SAMPLER        2
  74 #define I915_CACHE_MAP            3
  75 #define I915_CACHE_PROGRAM        4
  76 #define I915_CACHE_CONSTANTS      5
  77 #define I915_MAX_CACHE            6
  78
  79 #define I915_MAX_CONSTANT  32
  80
  81
  82
  83 struct i915_cache_context;
  84
  85 /* Use to calculate differences between state emitted to hardware and
  86  * current driver-calculated state.
  87  */
  88 struct i915_state
  89 {
  90    unsigned immediate[I915_MAX_IMMEDIATE];
  91    unsigned dynamic[I915_MAX_DYNAMIC];
  92
  93    float constants[PIPE_SHADER_TYPES][I915_MAX_CONSTANT][4];
  94    /** number of constants passed in through a constant buffer */
  95    uint num_user_constants[PIPE_SHADER_TYPES];
  96    /** user constants, plus extra constants from shader translation */
  97    uint num_constants[PIPE_SHADER_TYPES];
  98
  99    uint *program;
 100    uint program_len;
 101
 102    /* texture sampler state */
 103    unsigned sampler[I915_TEX_UNITS][3];
 104    unsigned sampler_enable_flags;
 105    unsigned sampler_enable_nr;
 106
 107    /* texture image buffers */
 108    unsigned texbuffer[I915_TEX_UNITS][2];
 109
 110    /** Describes the current hardware vertex layout */
 111    struct vertex_info vertex_info;
 112
 113    unsigned id;                 /* track lost context events */
 114 };
 115
 116
 117
 118 struct i915_context
 119 {
 120    struct pipe_context pipe;
 121    struct i915_winsys *winsys;
 122    struct draw_context *draw;
 123
 124    /* The most recent drawing state as set by the driver:
 125     */
 126    const struct pipe_blend_state   *blend;
 127    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
 128    const struct pipe_depth_stencil_state   *depth_stencil;
 129    const struct pipe_rasterizer_state *rasterizer;
 130
 131    struct pipe_alpha_test_state alpha_test;
 132    struct pipe_blend_color blend_color;
 133    struct pipe_clear_color_state clear_color;
 134    struct pipe_clip_state clip;
 135    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
 136    struct pipe_framebuffer_state framebuffer;
 137    struct pipe_shader_state fs;
 138    struct pipe_poly_stipple poly_stipple;
 139    struct pipe_scissor_state scissor;
 140    struct pipe_mipmap_tree *texture[PIPE_MAX_SAMPLERS];
 141    struct pipe_viewport_state viewport;
 142    struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
 143
 144    unsigned dirty;
 145
 146    unsigned *batch_start;
 147
 148    struct i915_state current;
 149    unsigned hardware_dirty;
 150
 151    unsigned debug;
 152    unsigned pci_id;
 153
 154    struct {
 155       unsigned is_i945:1;
 156    } flags;
 157 };
 158
 159 /* A flag for each state_tracker state object:
 160  */
 161 #define I915_NEW_VIEWPORT      0x1
 162 #define I915_NEW_RASTERIZER    0x2
 163 #define I915_NEW_FS            0x4
 164 #define I915_NEW_BLEND         0x8
 165 #define I915_NEW_CLIP          0x10
 166 #define I915_NEW_SCISSOR       0x20
 167 #define I915_NEW_STIPPLE       0x40
 168 #define I915_NEW_FRAMEBUFFER   0x80
 169 #define I915_NEW_ALPHA_TEST    0x100
 170 #define I915_NEW_DEPTH_STENCIL 0x200
 171 #define I915_NEW_SAMPLER       0x400
 172 #define I915_NEW_TEXTURE       0x800
 173 #define I915_NEW_CONSTANTS     0x1000
 174
 175
 176 /* Driver's internally generated state flags:
 177  */
 178 #define I915_NEW_VERTEX_FORMAT    0x10000
 179
 180
 181 /* Dirty flags for hardware emit
 182  */
 183 #define I915_HW_STATIC            (1<<I915_CACHE_STATIC)
 184 #define I915_HW_DYNAMIC           (1<<I915_CACHE_DYNAMIC)
 185 #define I915_HW_SAMPLER           (1<<I915_CACHE_SAMPLER)
 186 #define I915_HW_MAP               (1<<I915_CACHE_MAP)
 187 #define I915_HW_PROGRAM           (1<<I915_CACHE_PROGRAM)
 188 #define I915_HW_CONSTANTS         (1<<I915_CACHE_CONSTANTS)
 189 #define I915_HW_IMMEDIATE         (1<<(I915_MAX_CACHE+0))
 190 #define I915_HW_INVARIENT         (1<<(I915_MAX_CACHE+1))
 191
 192
 193 /***********************************************************************
 194  * i915_prim_emit.c:
 195  */
 196 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
 197
 198
 199 /***********************************************************************
 200  * i915_state_emit.c:
 201  */
 202 void i915_emit_hardware_state(struct i915_context *i915 );
 203
 204
 205
 206 /***********************************************************************
 207  * i915_clear.c:
 208  */
 209 void i915_clear(struct pipe_context *pipe, struct pipe_surface *ps,
 210                 unsigned clearValue);
 211
 212
 213 /***********************************************************************
 214  * i915_region.c:
 215  */
 216 void i915_init_region_functions( struct i915_context *i915 );
 217 void i915_init_surface_functions( struct i915_context *i915 );
 218 void i915_init_state_functions( struct i915_context *i915 );
 219 void i915_init_flush_functions( struct i915_context *i915 );
 220 void i915_init_string_functions( struct i915_context *i915 );
 221
 222
 223
 224 /***********************************************************************
 225  * Inline conversion functions.  These are better-typed than the
 226  * macros used previously:
 227  */
 228 static INLINE struct i915_context *
 229 i915_context( struct pipe_context *pipe )
 230 {
 231    return (struct i915_context *)pipe;
 232 }
 233
 234
 235
 236 #endif