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 struct i915_blend_state {
 117    unsigned iab;
 118    unsigned modes4;
 119    unsigned LIS5;
 120    unsigned LIS6;
 121 };
 122
 123 struct i915_depth_stencil_state {
 124    unsigned stencil_modes4;
 125    unsigned bfo[2];
 126    unsigned stencil_LIS5;
 127    unsigned depth_LIS6;
 128 };
 129
 130 struct i915_rasterizer_state {
 131    int light_twoside : 1;
 132    unsigned st;
 133    enum interp_mode color_interp;
 134
 135    unsigned LIS4;
 136    unsigned LIS7;
 137    unsigned sc[1];
 138
 139    const struct pipe_rasterizer_state *templ;
 140
 141    union { float f; unsigned u; } ds[2];
 142 };
 143
 144 struct i915_sampler_state {
 145    unsigned state[3];
 146    const struct pipe_sampler_state *templ;
 147 };
 148
 149 struct i915_alpha_test_state {
 150    unsigned LIS6;
 151 };
 152
 153 struct i915_texture {
 154    struct pipe_texture base;
 155
 156    /* Derived from the above:
 157     */
 158    unsigned pitch;
 159    unsigned depth_pitch;          /* per-image on i945? */
 160    unsigned total_height;
 161
 162    unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
 163
 164    /* Explicitly store the offset of each image for each cube face or
 165     * depth value.  Pretty much have to accept that hardware formats
 166     * are going to be so diverse that there is no unified way to
 167     * compute the offsets of depth/cube images within a mipmap level,
 168     * so have to store them as a lookup table:
 169     */
 170    unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];   /**< array [depth] of offsets */
 171
 172    /* Includes image offset tables:
 173     */
 174    unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
 175
 176    /* The data is held here:
 177     */
 178    struct pipe_buffer_handle *buffer;
 179 };
 180
 181 struct i915_context
 182 {
 183    struct pipe_context pipe;
 184    struct i915_winsys *winsys;
 185    struct draw_context *draw;
 186
 187    /* The most recent drawing state as set by the driver:
 188     */
 189    const struct i915_alpha_test_state      *alpha_test;
 190    const struct i915_blend_state           *blend;
 191    const struct i915_sampler_state         *sampler[PIPE_MAX_SAMPLERS];
 192    const struct i915_depth_stencil_state   *depth_stencil;
 193    const struct i915_rasterizer_state      *rasterizer;
 194    const struct pipe_shader_state *fs;
 195
 196    struct pipe_blend_color blend_color;
 197    struct pipe_clear_color_state clear_color;
 198    struct pipe_clip_state clip;
 199    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
 200    struct pipe_feedback_state feedback;
 201    struct pipe_framebuffer_state framebuffer;
 202    struct pipe_poly_stipple poly_stipple;
 203    struct pipe_scissor_state scissor;
 204    uint sampler_units[PIPE_MAX_SAMPLERS];
 205    struct i915_texture *texture[PIPE_MAX_SAMPLERS];
 206    struct pipe_viewport_state viewport;
 207    struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
 208
 209    /** Feedback buffers */
 210    struct pipe_feedback_buffer feedback_buffer[PIPE_MAX_FEEDBACK_ATTRIBS];
 211
 212    unsigned dirty;
 213
 214    unsigned *batch_start;
 215
 216    /** Vertex buffer */
 217    struct pipe_buffer_handle *vbo;
 218
 219    struct i915_state current;
 220    unsigned hardware_dirty;
 221
 222    unsigned debug;
 223    unsigned pci_id;
 224
 225    struct {
 226       unsigned is_i945:1;
 227    } flags;
 228 };
 229
 230 /* A flag for each state_tracker state object:
 231  */
 232 #define I915_NEW_VIEWPORT      0x1
 233 #define I915_NEW_RASTERIZER    0x2
 234 #define I915_NEW_FS            0x4
 235 #define I915_NEW_BLEND         0x8
 236 #define I915_NEW_CLIP          0x10
 237 #define I915_NEW_SCISSOR       0x20
 238 #define I915_NEW_STIPPLE       0x40
 239 #define I915_NEW_FRAMEBUFFER   0x80
 240 #define I915_NEW_ALPHA_TEST    0x100
 241 #define I915_NEW_DEPTH_STENCIL 0x200
 242 #define I915_NEW_SAMPLER       0x400
 243 #define I915_NEW_TEXTURE       0x800
 244 #define I915_NEW_CONSTANTS     0x1000
 245 #define I915_NEW_VBO           0x2000
 246
 247
 248 /* Driver's internally generated state flags:
 249  */
 250 #define I915_NEW_VERTEX_FORMAT    0x10000
 251
 252
 253 /* Dirty flags for hardware emit
 254  */
 255 #define I915_HW_STATIC            (1<<I915_CACHE_STATIC)
 256 #define I915_HW_DYNAMIC           (1<<I915_CACHE_DYNAMIC)
 257 #define I915_HW_SAMPLER           (1<<I915_CACHE_SAMPLER)
 258 #define I915_HW_MAP               (1<<I915_CACHE_MAP)
 259 #define I915_HW_PROGRAM           (1<<I915_CACHE_PROGRAM)
 260 #define I915_HW_CONSTANTS         (1<<I915_CACHE_CONSTANTS)
 261 #define I915_HW_IMMEDIATE         (1<<(I915_MAX_CACHE+0))
 262 #define I915_HW_INVARIENT         (1<<(I915_MAX_CACHE+1))
 263
 264
 265 /***********************************************************************
 266  * i915_prim_emit.c:
 267  */
 268 struct draw_stage *i915_draw_render_stage( struct i915_context *i915 );
 269
 270
 271 /***********************************************************************
 272  * i915_prim_vbuf.c:
 273  */
 274 struct draw_stage *i915_draw_vbuf_stage( struct i915_context *i915 );
 275
 276
 277 /***********************************************************************
 278  * i915_state_emit.c:
 279  */
 280 void i915_emit_hardware_state(struct i915_context *i915 );
 281
 282
 283
 284 /***********************************************************************
 285  * i915_clear.c:
 286  */
 287 void i915_clear(struct pipe_context *pipe, struct pipe_surface *ps,
 288                 unsigned clearValue);
 289
 290
 291 /***********************************************************************
 292  * i915_surface.c:
 293  */
 294 void i915_init_surface_functions( struct i915_context *i915 );
 295
 296 void i915_init_state_functions( struct i915_context *i915 );
 297 void i915_init_flush_functions( struct i915_context *i915 );
 298 void i915_init_string_functions( struct i915_context *i915 );
 299
 300
 301
 302 /***********************************************************************
 303  * Inline conversion functions.  These are better-typed than the
 304  * macros used previously:
 305  */
 306 static INLINE struct i915_context *
 307 i915_context( struct pipe_context *pipe )
 308 {
 309    return (struct i915_context *)pipe;
 310 }
 311
 312
 313
 314 #endif