src/gallium/drivers/cell/ppu/cell_context.c

   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 /**
  29  * Authors
  30  *  Brian Paul
  31  */
  32
  33
  34 #include <stdio.h>
  35
  36 #include "pipe/p_defines.h"
  37 #include "pipe/p_format.h"
  38 #include "pipe/p_util.h"
  39 #include "pipe/p_winsys.h"
  40 #include "cell/common.h"
  41 #include "draw/draw_context.h"
  42 #include "draw/draw_private.h"
  43 #include "cell_clear.h"
  44 #include "cell_context.h"
  45 #include "cell_draw_arrays.h"
  46 #include "cell_flush.h"
  47 #include "cell_render.h"
  48 #include "cell_state.h"
  49 #include "cell_surface.h"
  50 #include "cell_spu.h"
  51 #include "cell_pipe_state.h"
  52 #include "cell_texture.h"
  53 #include "cell_vbuf.h"
  54
  55
  56
  57 static boolean
  58 cell_is_format_supported( struct pipe_context *pipe,
  59                           enum pipe_format format, uint type )
  60 {
  61    /*struct cell_context *cell = cell_context( pipe );*/
  62
  63    switch (type) {
  64    case PIPE_TEXTURE:
  65       /* cell supports all texture formats, XXX for now anyway */
  66       return TRUE;
  67    case PIPE_SURFACE:
  68       /* cell supports all (off-screen) surface formats, XXX for now */
  69       return TRUE;
  70    default:
  71       assert(0);
  72       return FALSE;
  73    }
  74 }
  75
  76
  77 static int cell_get_param(struct pipe_context *pipe, int param)
  78 {
  79    switch (param) {
  80    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  81       return 8;
  82    case PIPE_CAP_NPOT_TEXTURES:
  83       return 1;
  84    case PIPE_CAP_TWO_SIDED_STENCIL:
  85       return 1;
  86    case PIPE_CAP_GLSL:
  87       return 1;
  88    case PIPE_CAP_S3TC:
  89       return 0;
  90    case PIPE_CAP_ANISOTROPIC_FILTER:
  91       return 0;
  92    case PIPE_CAP_POINT_SPRITE:
  93       return 1;
  94    case PIPE_CAP_MAX_RENDER_TARGETS:
  95       return 1;
  96    case PIPE_CAP_OCCLUSION_QUERY:
  97       return 1;
  98    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  99       return 1;
 100    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 101       return 12; /* max 2Kx2K */
 102    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 103       return 8;  /* max 128x128x128 */
 104    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 105       return 12; /* max 2Kx2K */
 106    default:
 107       return 0;
 108    }
 109 }
 110
 111 static float cell_get_paramf(struct pipe_context *pipe, int param)
 112 {
 113    switch (param) {
 114    case PIPE_CAP_MAX_LINE_WIDTH:
 115       /* fall-through */
 116    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 117       return 255.0; /* arbitrary */
 118
 119    case PIPE_CAP_MAX_POINT_WIDTH:
 120       /* fall-through */
 121    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 122       return 255.0; /* arbitrary */
 123
 124    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 125       return 0.0;
 126
 127    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 128       return 16.0; /* arbitrary */
 129
 130    default:
 131       return 0;
 132    }
 133 }
 134
 135
 136 static const char *
 137 cell_get_name( struct pipe_context *pipe )
 138 {
 139    return "Cell";
 140 }
 141
 142 static const char *
 143 cell_get_vendor( struct pipe_context *pipe )
 144 {
 145    return "Tungsten Graphics, Inc.";
 146 }
 147
 148
 149
 150 static void
 151 cell_destroy_context( struct pipe_context *pipe )
 152 {
 153    struct cell_context *cell = cell_context(pipe);
 154
 155    cell_spu_exit(cell);
 156
 157    align_free(cell);
 158 }
 159
 160
 161 static struct draw_context *
 162 cell_draw_create(struct cell_context *cell)
 163 {
 164    struct draw_context *draw = draw_create();
 165
 166    if (getenv("GALLIUM_CELL_VS")) {
 167       /* plug in SPU-based vertex transformation code */
 168       draw->shader_queue_flush = cell_vertex_shader_queue_flush;
 169       draw->driver_private = cell;
 170    }
 171
 172    return draw;
 173 }
 174
 175
 176 struct pipe_context *
 177 cell_create_context(struct pipe_winsys *winsys, struct cell_winsys *cws)
 178 {
 179    struct cell_context *cell;
 180    uint spu, buf;
 181
 182    /* some fields need to be 16-byte aligned, so align the whole object */
 183    cell = (struct cell_context*) align_malloc(sizeof(struct cell_context), 16);
 184    if (!cell)
 185       return NULL;
 186
 187    memset(cell, 0, sizeof(*cell));
 188
 189    cell->winsys = cws;
 190    cell->pipe.winsys = winsys;
 191    cell->pipe.destroy = cell_destroy_context;
 192
 193    /* queries */
 194    cell->pipe.is_format_supported = cell_is_format_supported;
 195    cell->pipe.get_name = cell_get_name;
 196    cell->pipe.get_vendor = cell_get_vendor;
 197    cell->pipe.get_param = cell_get_param;
 198    cell->pipe.get_paramf = cell_get_paramf;
 199
 200
 201    /* state setters */
 202    cell->pipe.set_vertex_buffer = cell_set_vertex_buffer;
 203    cell->pipe.set_vertex_element = cell_set_vertex_element;
 204
 205    cell->pipe.draw_arrays = cell_draw_arrays;
 206    cell->pipe.draw_elements = cell_draw_elements;
 207
 208    cell->pipe.clear = cell_clear_surface;
 209    cell->pipe.flush = cell_flush;
 210
 211 #if 0
 212    cell->pipe.begin_query = cell_begin_query;
 213    cell->pipe.end_query = cell_end_query;
 214    cell->pipe.wait_query = cell_wait_query;
 215 #endif
 216
 217    cell_init_state_functions(cell);
 218    cell_init_shader_functions(cell);
 219    cell_init_surface_functions(cell);
 220    cell_init_texture_functions(cell);
 221
 222    cell->draw = cell_draw_create(cell);
 223
 224    cell_init_vbuf(cell);
 225    draw_set_rasterize_stage(cell->draw, cell->vbuf);
 226
 227    /*
 228     * SPU stuff
 229     */
 230    cell->num_spus = 6;
 231    /* XXX is this in SDK 3.0 only?
 232    cell->num_spus = spe_cpu_info_get(SPE_COUNT_PHYSICAL_SPES, -1);
 233    */
 234
 235    cell_start_spus(cell);
 236
 237    /* init command, vertex/index buffer info */
 238    for (buf = 0; buf < CELL_NUM_BUFFERS; buf++) {
 239       cell->buffer_size[buf] = 0;
 240
 241       /* init batch buffer status values,
 242        * mark 0th buffer as used, rest as free.
 243        */
 244       for (spu = 0; spu < cell->num_spus; spu++) {
 245          if (buf == 0)
 246             cell->buffer_status[spu][buf][0] = CELL_BUFFER_STATUS_USED;
 247          else
 248             cell->buffer_status[spu][buf][0] = CELL_BUFFER_STATUS_FREE;
 249       }
 250    }
 251
 252    return &cell->pipe;
 253 }