src/gallium/drivers/cell/spu/spu_main.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 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 SPU_MAIN_H
  29 #define SPU_MAIN_H
  30
  31
  32 #include <spu_mfcio.h>
  33
  34 #include "cell/common.h"
  35 #include "draw/draw_vertex.h"
  36 #include "pipe/p_state.h"
  37
  38
  39
  40 #define MAX_WIDTH 1024
  41 #define MAX_HEIGHT 1024
  42
  43
  44 /**
  45  * A tile is basically a TILE_SIZE x TILE_SIZE block of 4-byte pixels.
  46  * The data may be addressed through several different types.
  47  */
  48 typedef union {
  49    ushort us[TILE_SIZE][TILE_SIZE];
  50    uint   ui[TILE_SIZE][TILE_SIZE];
  51    vector unsigned short us8[TILE_SIZE/2][TILE_SIZE/4];
  52    vector unsigned int ui4[TILE_SIZE/2][TILE_SIZE/2];
  53 } tile_t;
  54
  55
  56 #define TILE_STATUS_CLEAR   1
  57 #define TILE_STATUS_DEFINED 2  /**< defined in FB, but not in local store */
  58 #define TILE_STATUS_CLEAN   3  /**< in local store, but not changed */
  59 #define TILE_STATUS_DIRTY   4  /**< modified locally, but not put back yet */
  60 #define TILE_STATUS_GETTING 5  /**< mfc_get() called but not yet arrived */
  61
  62
  63 /** Function for sampling textures */
  64 typedef vector float (*spu_sample_texture_func)(uint unit,
  65                                                 vector float texcoord);
  66
  67 /** Function for performing per-fragment ops */
  68 typedef void (*spu_fragment_ops_func)(uint x, uint y,
  69                                       tile_t *colorTile,
  70                                       tile_t *depthStencilTile,
  71                                       vector float fragZ,
  72                                       vector float fragRed,
  73                                       vector float fragGreen,
  74                                       vector float fragBlue,
  75                                       vector float fragAlpha,
  76                                       vector unsigned int mask,
  77                                       uint facing);
  78
  79 /** Function for running fragment program */
  80 typedef void (*spu_fragment_program_func)(vector float *inputs,
  81                                           vector float *outputs,
  82                                           vector float *constants);
  83
  84
  85 struct spu_framebuffer
  86 {
  87    void *color_start;              /**< addr of color surface in main memory */
  88    void *depth_start;              /**< addr of depth surface in main memory */
  89    enum pipe_format color_format;
  90    enum pipe_format depth_format;
  91    uint width, height;             /**< size in pixels */
  92    uint width_tiles, height_tiles; /**< width and height in tiles */
  93
  94    uint color_clear_value;
  95    uint depth_clear_value;
  96
  97    uint zsize;                     /**< 0, 2 or 4 bytes per Z */
  98    float zscale;                   /**< 65535.0, 2^24-1 or 2^32-1 */
  99 } ALIGN16_ATTRIB;
 100
 101
 102 struct spu_texture
 103 {
 104    void *start;
 105    ushort width, height;
 106    ushort tiles_per_row;
 107    vector float tex_size;
 108    vector unsigned int tex_size_mask; /**< == int(size - 1) */
 109    vector unsigned int tex_size_x_mask; /**< == int(size - 1) */
 110    vector unsigned int tex_size_y_mask; /**< == int(size - 1) */
 111 } ALIGN16_ATTRIB;
 112
 113
 114 /**
 115  * All SPU global/context state will be in a singleton object of this type:
 116  */
 117 struct spu_global
 118 {
 119    /** One-time init/constant info */
 120    struct cell_init_info init;
 121
 122    /*
 123     * Current state
 124     */
 125    struct spu_framebuffer fb;
 126    struct pipe_depth_stencil_alpha_state depth_stencil_alpha;
 127    struct pipe_blend_state blend;
 128    struct pipe_sampler_state sampler[PIPE_MAX_SAMPLERS];
 129    struct spu_texture texture[PIPE_MAX_SAMPLERS];
 130    struct vertex_info vertex_info;
 131
 132    /** Current color and Z tiles */
 133    tile_t ctile ALIGN16_ATTRIB;
 134    tile_t ztile ALIGN16_ATTRIB;
 135
 136    /** Read depth/stencil tiles? */
 137    boolean read_depth;
 138    boolean read_stencil;
 139
 140    /** Current tiles' status */
 141    ubyte cur_ctile_status, cur_ztile_status;
 142
 143    /** Status of all tiles in framebuffer */
 144    ubyte ctile_status[MAX_HEIGHT/TILE_SIZE][MAX_WIDTH/TILE_SIZE] ALIGN16_ATTRIB;
 145    ubyte ztile_status[MAX_HEIGHT/TILE_SIZE][MAX_WIDTH/TILE_SIZE] ALIGN16_ATTRIB;
 146
 147    /** Current fragment ops machine code, at 8-byte boundary */
 148    uint fragment_ops_code[SPU_MAX_FRAGMENT_OPS_INSTS] ALIGN8_ATTRIB;
 149    /** Current fragment ops function */
 150    spu_fragment_ops_func fragment_ops;
 151
 152    /** Current fragment program machine code, at 8-byte boundary */
 153    uint fragment_program_code[SPU_MAX_FRAGMENT_PROGRAM_INSTS] ALIGN8_ATTRIB;
 154    /** Current fragment ops function */
 155    spu_fragment_program_func fragment_program;
 156
 157    /** Current texture sampler function */
 158    spu_sample_texture_func sample_texture[CELL_MAX_SAMPLERS];
 159
 160    /** Fragment program constants (XXX preliminary/used) */
 161 #define MAX_CONSTANTS 32
 162    vector float constants[MAX_CONSTANTS];
 163
 164 } ALIGN16_ATTRIB;
 165
 166
 167 extern struct spu_global spu;
 168 extern boolean Debug;
 169
 170
 171
 172
 173 /* DMA TAGS */
 174
 175 #define TAG_SURFACE_CLEAR     10
 176 #define TAG_VERTEX_BUFFER     11
 177 #define TAG_READ_TILE_COLOR   12
 178 #define TAG_READ_TILE_Z       13
 179 #define TAG_WRITE_TILE_COLOR  14
 180 #define TAG_WRITE_TILE_Z      15
 181 #define TAG_INDEX_BUFFER      16
 182 #define TAG_BATCH_BUFFER      17
 183 #define TAG_MISC              18
 184 #define TAG_DCACHE0           20
 185 #define TAG_DCACHE1           21
 186 #define TAG_DCACHE2           22
 187 #define TAG_DCACHE3           23
 188
 189
 190
 191 static INLINE void
 192 wait_on_mask(unsigned tagMask)
 193 {
 194    mfc_write_tag_mask( tagMask );
 195    /* wait for completion of _any_ DMAs specified by tagMask */
 196    mfc_read_tag_status_any();
 197 }
 198
 199
 200 static INLINE void
 201 wait_on_mask_all(unsigned tagMask)
 202 {
 203    mfc_write_tag_mask( tagMask );
 204    /* wait for completion of _any_ DMAs specified by tagMask */
 205    mfc_read_tag_status_all();
 206 }
 207
 208
 209
 210
 211
 212 static INLINE void
 213 memset16(ushort *d, ushort value, uint count)
 214 {
 215    uint i;
 216    for (i = 0; i < count; i++)
 217       d[i] = value;
 218 }
 219
 220
 221 static INLINE void
 222 memset32(uint *d, uint value, uint count)
 223 {
 224    uint i;
 225    for (i = 0; i < count; i++)
 226       d[i] = value;
 227 }
 228
 229
 230 #endif /* SPU_MAIN_H */