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 "util/u_memory.h"
  39 #include "pipe/p_winsys.h"
  40 #include "pipe/p_screen.h"
  41
  42 #include "draw/draw_context.h"
  43 #include "draw/draw_private.h"
  44
  45 #include "cell/common.h"
  46 #include "cell_batch.h"
  47 #include "cell_clear.h"
  48 #include "cell_context.h"
  49 #include "cell_draw_arrays.h"
  50 #include "cell_flush.h"
  51 #include "cell_state.h"
  52 #include "cell_surface.h"
  53 #include "cell_spu.h"
  54 #include "cell_pipe_state.h"
  55 #include "cell_texture.h"
  56 #include "cell_vbuf.h"
  57
  58
  59
  60 static void
  61 cell_destroy_context( struct pipe_context *pipe )
  62 {
  63    struct cell_context *cell = cell_context(pipe);
  64
  65    cell_spu_exit(cell);
  66
  67    align_free(cell);
  68 }
  69
  70
  71 static struct draw_context *
  72 cell_draw_create(struct cell_context *cell)
  73 {
  74    struct draw_context *draw = draw_create();
  75
  76 #if 0 /* broken */
  77    if (getenv("GALLIUM_CELL_VS")) {
  78       /* plug in SPU-based vertex transformation code */
  79       draw->shader_queue_flush = cell_vertex_shader_queue_flush;
  80       draw->driver_private = cell;
  81    }
  82 #endif
  83
  84    return draw;
  85 }
  86
  87
  88 #ifdef DEBUG
  89 static const struct debug_named_value cell_debug_flags[] = {
  90    {"checker", CELL_DEBUG_CHECKER},/**< modulate tile clear color by SPU ID */
  91    {"sync", CELL_DEBUG_SYNC},      /**< SPUs do synchronous DMA */
  92    {NULL, 0}
  93 };
  94 #endif
  95
  96
  97 struct pipe_context *
  98 cell_create_context(struct pipe_screen *screen,
  99                     struct cell_winsys *cws)
 100 {
 101    struct cell_context *cell;
 102
 103    /* some fields need to be 16-byte aligned, so align the whole object */
 104    cell = (struct cell_context*) align_malloc(sizeof(struct cell_context), 16);
 105    if (!cell)
 106       return NULL;
 107
 108    memset(cell, 0, sizeof(*cell));
 109
 110    cell->winsys = cws;
 111    cell->pipe.winsys = screen->winsys;
 112    cell->pipe.screen = screen;
 113    cell->pipe.destroy = cell_destroy_context;
 114
 115    cell->pipe.clear = cell_clear_surface;
 116    cell->pipe.flush = cell_flush;
 117
 118 #if 0
 119    cell->pipe.begin_query = cell_begin_query;
 120    cell->pipe.end_query = cell_end_query;
 121    cell->pipe.wait_query = cell_wait_query;
 122 #endif
 123
 124    cell_init_draw_functions(cell);
 125    cell_init_state_functions(cell);
 126    cell_init_shader_functions(cell);
 127    cell_init_surface_functions(cell);
 128    cell_init_texture_functions(cell);
 129    cell_init_vertex_functions(cell);
 130
 131    cell->draw = cell_draw_create(cell);
 132
 133    cell_init_vbuf(cell);
 134
 135    draw_set_rasterize_stage(cell->draw, cell->vbuf);
 136
 137    /* convert all points/lines to tris for the time being */
 138    draw_wide_point_threshold(cell->draw, 0.0);
 139    draw_wide_line_threshold(cell->draw, 0.0);
 140
 141    /* get env vars or read config file to get debug flags */
 142    cell->debug_flags = debug_get_flags_option("CELL_DEBUG",
 143                                               cell_debug_flags,
 144                                               0 );
 145
 146    /*
 147     * SPU stuff
 148     */
 149    cell->num_spus = 6;
 150    /* XXX is this in SDK 3.0 only?
 151    cell->num_spus = spe_cpu_info_get(SPE_COUNT_PHYSICAL_SPES, -1);
 152    */
 153
 154    cell_start_spus(cell);
 155
 156    cell_init_batch_buffers(cell);
 157
 158    return &cell->pipe;
 159 }