src/gallium/drivers/r600/r600_draw.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Jerome Glisse
  25  *      Corbin Simpson
  26  */
  27 #include <stdio.h>
  28 #include <errno.h>
  29 #include <pipe/p_screen.h>
  30 #include <util/u_format.h>
  31 #include <util/u_math.h>
  32 #include <util/u_inlines.h>
  33 #include <util/u_memory.h>
  34 #include "radeon.h"
  35 #include "r600_screen.h"
  36 #include "r600_context.h"
  37 #include "r600_resource.h"
  38 #include "r600_state_inlines.h"
  39
  40 static int r600_draw_common(struct r600_draw *draw)
  41 {
  42         struct r600_context *rctx = r600_context(draw->ctx);
  43         struct r600_screen *rscreen = rctx->screen;
  44         /* FIXME vs_resource */
  45         struct radeon_state *vs_resource;
  46         struct r600_resource *rbuffer;
  47         unsigned i, j, offset, format, prim;
  48         u32 vgt_dma_index_type, vgt_draw_initiator;
  49         struct pipe_vertex_buffer *vertex_buffer;
  50         int r;
  51
  52         r = r600_context_hw_states(draw->ctx);
  53         if (r)
  54                 return r;
  55         switch (draw->index_size) {
  56         case 2:
  57                 vgt_draw_initiator = S_0287F0_SOURCE_SELECT(V_0287F0_DI_SRC_SEL_DMA);
  58                 vgt_dma_index_type = 0;
  59                 break;
  60         case 4:
  61                 vgt_draw_initiator = S_0287F0_SOURCE_SELECT(V_0287F0_DI_SRC_SEL_DMA);
  62                 vgt_dma_index_type = 1;
  63                 break;
  64         case 0:
  65                 vgt_draw_initiator = S_0287F0_SOURCE_SELECT(V_0287F0_DI_SRC_SEL_AUTO_INDEX);
  66                 vgt_dma_index_type = 0;
  67                 break;
  68         default:
  69                 fprintf(stderr, "%s %d unsupported index size %d\n", __func__, __LINE__, draw->index_size);
  70                 return -EINVAL;
  71         }
  72         r = r600_conv_pipe_prim(draw->mode, &prim);
  73         if (r)
  74                 return r;
  75
  76         /* rebuild vertex shader if input format changed */
  77         r = r600_pipe_shader_update(draw->ctx, rctx->vs_shader);
  78         if (r)
  79                 return r;
  80         r = r600_pipe_shader_update(draw->ctx, rctx->ps_shader);
  81         if (r)
  82                 return r;
  83         radeon_draw_bind(&rctx->draw, &rctx->vs_shader->rstate[0]);
  84         radeon_draw_bind(&rctx->draw, &rctx->ps_shader->rstate[0]);
  85
  86         for (i = 0 ; i < rctx->vs_nresource; i++) {
  87                 radeon_state_fini(&rctx->vs_resource[i]);
  88         }
  89         for (i = 0 ; i < rctx->vertex_elements->count; i++) {
  90                 vs_resource = &rctx->vs_resource[i];
  91                 j = rctx->vertex_elements->elements[i].vertex_buffer_index;
  92                 vertex_buffer = &rctx->vertex_buffer[j];
  93                 rbuffer = (struct r600_resource*)vertex_buffer->buffer;
  94                 offset = rctx->vertex_elements->elements[i].src_offset + vertex_buffer->buffer_offset;
  95                 format = r600_translate_colorformat(rctx->vertex_elements->elements[i].src_format);
  96
  97                 rctx->vtbl->vs_resource(rctx, i, rbuffer, offset, vertex_buffer->stride, format);
  98                 radeon_draw_bind(&rctx->draw, vs_resource);
  99         }
 100         rctx->vs_nresource = rctx->vertex_elements->count;
 101         /* FIXME start need to change winsys */
 102         rctx->vtbl->vgt_init(draw, vgt_draw_initiator);
 103         radeon_draw_bind(&rctx->draw, &draw->draw);
 104
 105         rctx->vtbl->vgt_prim(draw, prim, vgt_dma_index_type);
 106         radeon_draw_bind(&rctx->draw, &draw->vgt);
 107
 108         r = radeon_ctx_set_draw(rctx->ctx, &rctx->draw);
 109         if (r == -EBUSY) {
 110                 r600_flush(draw->ctx, 0, NULL);
 111                 r = radeon_ctx_set_draw(rctx->ctx, &rctx->draw);
 112         }
 113
 114         radeon_state_fini(&draw->draw);
 115
 116         return r;
 117 }
 118
 119 void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
 120 {
 121         struct r600_context *rctx = r600_context(ctx);
 122         struct r600_draw draw;
 123         int r;
 124
 125         assert(info->index_bias == 0);
 126
 127         memset(&draw, 0, sizeof(draw));
 128
 129         if (rctx->any_user_vbs) {
 130                 r600_upload_user_buffers(rctx);
 131                 rctx->any_user_vbs = false;
 132         }
 133
 134         draw.ctx = ctx;
 135         draw.mode = info->mode;
 136         draw.start = info->start;
 137         draw.count = info->count;
 138         if (info->indexed && rctx->index_buffer.buffer) {
 139                 draw.min_index = info->min_index;
 140                 draw.max_index = info->max_index;
 141                 draw.index_size = rctx->index_buffer.index_size;
 142                 draw.index_buffer = rctx->index_buffer.buffer;
 143                 draw.index_buffer_offset = rctx->index_buffer.offset;
 144
 145                 assert(rctx->index_buffer.offset %
 146                                 rctx->index_buffer.index_size == 0);
 147                 r600_upload_index_buffer(rctx, &draw);
 148         }
 149         else {
 150                 draw.index_size = 0;
 151                 draw.index_buffer = NULL;
 152                 draw.min_index = 0;
 153                 draw.max_index = 0xffffff;
 154                 draw.index_buffer_offset = 0;
 155         }
 156         r = r600_draw_common(&draw);
 157         if (r)
 158           fprintf(stderr,"draw common failed %d\n", r);
 159 }