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 "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_clear.h"
  47 #include "cell_context.h"
  48 #include "cell_draw_arrays.h"
  49 #include "cell_flush.h"
  50 #include "cell_render.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 (getenv("GALLIUM_CELL_VS")) {
  77       /* plug in SPU-based vertex transformation code */
  78       draw->shader_queue_flush = cell_vertex_shader_queue_flush;
  79       draw->driver_private = cell;
  80    }
  81
  82    return draw;
  83 }
  84
  85
  86 struct pipe_context *
  87 cell_create_context(struct pipe_screen *screen,
  88                     struct cell_winsys *cws)
  89 {
  90    struct cell_context *cell;
  91    uint spu, buf;
  92
  93    /* some fields need to be 16-byte aligned, so align the whole object */
  94    cell = (struct cell_context*) align_malloc(sizeof(struct cell_context), 16);
  95    if (!cell)
  96       return NULL;
  97
  98    memset(cell, 0, sizeof(*cell));
  99
 100    cell->winsys = cws;
 101    cell->pipe.winsys = screen->winsys;
 102    cell->pipe.screen = screen;
 103    cell->pipe.destroy = cell_destroy_context;
 104
 105    /* state setters */
 106    cell->pipe.set_vertex_buffer = cell_set_vertex_buffer;
 107    cell->pipe.set_vertex_element = cell_set_vertex_element;
 108
 109    cell->pipe.draw_arrays = cell_draw_arrays;
 110    cell->pipe.draw_elements = cell_draw_elements;
 111
 112    cell->pipe.clear = cell_clear_surface;
 113    cell->pipe.flush = cell_flush;
 114
 115 #if 0
 116    cell->pipe.begin_query = cell_begin_query;
 117    cell->pipe.end_query = cell_end_query;
 118    cell->pipe.wait_query = cell_wait_query;
 119 #endif
 120
 121    cell_init_state_functions(cell);
 122    cell_init_shader_functions(cell);
 123    cell_init_surface_functions(cell);
 124    cell_init_texture_functions(cell);
 125
 126    cell->draw = cell_draw_create(cell);
 127
 128    cell_init_vbuf(cell);
 129    draw_set_rasterize_stage(cell->draw, cell->vbuf);
 130
 131    /* convert all points/lines to tris for the time being */
 132    draw_wide_point_threshold(cell->draw, 0.0);
 133    draw_wide_line_threshold(cell->draw, 0.0);
 134
 135    /*
 136     * SPU stuff
 137     */
 138    cell->num_spus = 6;
 139    /* XXX is this in SDK 3.0 only?
 140    cell->num_spus = spe_cpu_info_get(SPE_COUNT_PHYSICAL_SPES, -1);
 141    */
 142
 143    cell_start_spus(cell);
 144
 145    /* init command, vertex/index buffer info */
 146    for (buf = 0; buf < CELL_NUM_BUFFERS; buf++) {
 147       cell->buffer_size[buf] = 0;
 148
 149       /* init batch buffer status values,
 150        * mark 0th buffer as used, rest as free.
 151        */
 152       for (spu = 0; spu < cell->num_spus; spu++) {
 153          if (buf == 0)
 154             cell->buffer_status[spu][buf][0] = CELL_BUFFER_STATUS_USED;
 155          else
 156             cell->buffer_status[spu][buf][0] = CELL_BUFFER_STATUS_FREE;
 157       }
 158    }
 159
 160    return &cell->pipe;
 161 }