src/gallium/drivers/cell/ppu/cell_draw_arrays.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 /* Author:
  29  *    Brian Paul
  30  *    Keith Whitwell
  31  */
  32
  33
  34 #include "pipe/p_defines.h"
  35 #include "pipe/p_context.h"
  36 #include "pipe/p_winsys.h"
  37
  38 #include "cell_context.h"
  39 #include "cell_draw_arrays.h"
  40 #include "cell_state.h"
  41 #include "cell_flush.h"
  42
  43 #include "draw/draw_context.h"
  44
  45
  46
  47 static void
  48 cell_map_constant_buffers(struct cell_context *sp)
  49 {
  50    struct pipe_winsys *ws = sp->pipe.winsys;
  51    uint i;
  52    for (i = 0; i < 2; i++) {
  53       if (sp->constants[i].size) {
  54          sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer,
  55                                                   PIPE_BUFFER_USAGE_CPU_READ);
  56          cell_flush_buffer_range(sp, sp->mapped_constants[i],
  57                                  sp->constants[i].buffer->size);
  58       }
  59    }
  60
  61    draw_set_mapped_constant_buffer(sp->draw,
  62                                    sp->mapped_constants[PIPE_SHADER_VERTEX],
  63                                    sp->constants[PIPE_SHADER_VERTEX].size);
  64 }
  65
  66 static void
  67 cell_unmap_constant_buffers(struct cell_context *sp)
  68 {
  69    struct pipe_winsys *ws = sp->pipe.winsys;
  70    uint i;
  71    for (i = 0; i < 2; i++) {
  72       if (sp->constants[i].size)
  73          ws->buffer_unmap(ws, sp->constants[i].buffer);
  74       sp->mapped_constants[i] = NULL;
  75    }
  76 }
  77
  78
  79 boolean
  80 cell_draw_arrays(struct pipe_context *pipe, unsigned mode,
  81                      unsigned start, unsigned count)
  82 {
  83    return cell_draw_elements(pipe, NULL, 0, mode, start, count);
  84 }
  85
  86
  87
  88 /**
  89  * Draw vertex arrays, with optional indexing.
  90  * Basically, map the vertex buffers (and drawing surfaces), then hand off
  91  * the drawing to the 'draw' module.
  92  *
  93  * XXX should the element buffer be specified/bound with a separate function?
  94  */
  95 boolean
  96 cell_draw_range_elements(struct pipe_context *pipe,
  97                          struct pipe_buffer *indexBuffer,
  98                          unsigned indexSize,
  99                          unsigned min_index,
 100                          unsigned max_index,
 101                          unsigned mode, unsigned start, unsigned count)
 102 {
 103    struct cell_context *sp = cell_context(pipe);
 104    struct draw_context *draw = sp->draw;
 105    unsigned i;
 106
 107    if (sp->dirty)
 108       cell_update_derived( sp );
 109
 110 #if 0
 111    cell_map_surfaces(sp);
 112 #endif
 113    cell_map_constant_buffers(sp);
 114
 115    /*
 116     * Map vertex buffers
 117     */
 118    for (i = 0; i < sp->num_vertex_buffers; i++) {
 119       void *buf = pipe->winsys->buffer_map(pipe->winsys,
 120                                            sp->vertex_buffer[i].buffer,
 121                                            PIPE_BUFFER_USAGE_CPU_READ);
 122       cell_flush_buffer_range(sp, buf, sp->vertex_buffer[i].buffer->size);
 123       draw_set_mapped_vertex_buffer(draw, i, buf);
 124    }
 125    /* Map index buffer, if present */
 126    if (indexBuffer) {
 127       void *mapped_indexes = pipe->winsys->buffer_map(pipe->winsys,
 128                                                       indexBuffer,
 129                                                       PIPE_BUFFER_USAGE_CPU_READ);
 130       draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
 131    }
 132    else {
 133       /* no index/element buffer */
 134       draw_set_mapped_element_buffer(draw, 0, NULL);
 135    }
 136
 137
 138    /* draw! */
 139    draw_arrays(draw, mode, start, count);
 140
 141    /*
 142     * unmap vertex/index buffers - will cause draw module to flush
 143     */
 144    for (i = 0; i < sp->num_vertex_buffers; i++) {
 145       draw_set_mapped_vertex_buffer(draw, i, NULL);
 146       pipe->winsys->buffer_unmap(pipe->winsys, sp->vertex_buffer[i].buffer);
 147    }
 148    if (indexBuffer) {
 149       draw_set_mapped_element_buffer(draw, 0, NULL);
 150       pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
 151    }
 152
 153    /* Note: leave drawing surfaces mapped */
 154    cell_unmap_constant_buffers(sp);
 155
 156    return TRUE;
 157 }
 158
 159
 160 boolean
 161 cell_draw_elements(struct pipe_context *pipe,
 162                    struct pipe_buffer *indexBuffer,
 163                    unsigned indexSize,
 164                    unsigned mode, unsigned start, unsigned count)
 165 {
 166    return cell_draw_range_elements( pipe, indexBuffer,
 167                                     indexSize,
 168                                     0, 0xffffffff,
 169                                     mode, start, count );
 170 }
 171
 172
 173
 174 void
 175 cell_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags)
 176 {
 177    struct cell_context *cell = cell_context(pipe);
 178    draw_set_edgeflags(cell->draw, edgeflags);
 179 }