diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_swtnl_draw.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_swtnl_draw.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_swtnl_draw.c b/src/gallium/drivers/svga/svga_swtnl_draw.c new file mode 100644 index 0000000000..8b14c913f7 --- /dev/null +++ b/src/gallium/drivers/svga/svga_swtnl_draw.c @@ -0,0 +1,170 @@ +/********************************************************** + * Copyright 2008-2009 VMware, Inc. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + **********************************************************/ + +#include "draw/draw_context.h" +#include "draw/draw_vbuf.h" +#include "pipe/p_inlines.h" +#include "pipe/p_state.h" +#include "util/u_memory.h" + +#include "svga_context.h" +#include "svga_swtnl.h" +#include "svga_state.h" +#include "svga_swtnl_private.h" + + + +enum pipe_error +svga_swtnl_draw_range_elements(struct svga_context *svga, + struct pipe_buffer *indexBuffer, + unsigned indexSize, + unsigned min_index, + unsigned max_index, + unsigned prim, unsigned start, unsigned count) +{ + struct draw_context *draw = svga->swtnl.draw; + unsigned i; + const void *map; + enum pipe_error ret; + + assert(!svga->dirty); + assert(svga->state.sw.need_swtnl); + assert(draw); + + ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW); + if (ret) { + svga_context_flush(svga, NULL); + ret = svga_update_state(svga, SVGA_STATE_SWTNL_DRAW); + svga->swtnl.new_vbuf = TRUE; + assert(ret == PIPE_OK); + } + + /* + * Map vertex buffers + */ + for (i = 0; i < svga->curr.num_vertex_buffers; i++) { + map = pipe_buffer_map(svga->pipe.screen, + svga->curr.vb[i].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + + draw_set_mapped_vertex_buffer(draw, i, map); + } + + /* Map index buffer, if present */ + if (indexBuffer) { + map = pipe_buffer_map(svga->pipe.screen, indexBuffer, + PIPE_BUFFER_USAGE_CPU_READ); + + draw_set_mapped_element_buffer_range(draw, + indexSize, + min_index, + max_index, + map); + } + + if (svga->curr.cb[PIPE_SHADER_VERTEX]) { + map = pipe_buffer_map(svga->pipe.screen, + svga->curr.cb[PIPE_SHADER_VERTEX], + PIPE_BUFFER_USAGE_CPU_READ); + assert(map); + draw_set_mapped_constant_buffer( + draw, + map, + svga->curr.cb[PIPE_SHADER_VERTEX]->size); + } + + draw_arrays(svga->swtnl.draw, prim, start, count); + + draw_flush(svga->swtnl.draw); + + /* Ensure the draw module didn't touch this */ + assert(i == svga->curr.num_vertex_buffers); + + /* + * unmap vertex/index buffers + */ + for (i = 0; i < svga->curr.num_vertex_buffers; i++) { + pipe_buffer_unmap(svga->pipe.screen, svga->curr.vb[i].buffer); + draw_set_mapped_vertex_buffer(draw, i, NULL); + } + + if (indexBuffer) { + pipe_buffer_unmap(svga->pipe.screen, indexBuffer); + draw_set_mapped_element_buffer(draw, 0, NULL); + } + + if (svga->curr.cb[PIPE_SHADER_VERTEX]) { + pipe_buffer_unmap(svga->pipe.screen, + svga->curr.cb[PIPE_SHADER_VERTEX]); + } + + return ret; +} + + + + +boolean svga_init_swtnl( struct svga_context *svga ) +{ + svga->swtnl.backend = svga_vbuf_render_create(svga); + if(!svga->swtnl.backend) + goto fail; + + /* + * Create drawing context and plug our rendering stage into it. + */ + svga->swtnl.draw = draw_create(); + if (svga->swtnl.draw == NULL) + goto fail; + + + draw_set_rasterize_stage(svga->swtnl.draw, + draw_vbuf_stage( svga->swtnl.draw, svga->swtnl.backend )); + + draw_set_render(svga->swtnl.draw, svga->swtnl.backend); + + draw_install_aaline_stage(svga->swtnl.draw, &svga->pipe); + draw_install_aapoint_stage(svga->swtnl.draw, &svga->pipe); + draw_install_pstipple_stage(svga->swtnl.draw, &svga->pipe); + + draw_set_driver_clipping(svga->swtnl.draw, debug_get_bool_option("SVGA_SWTNL_FSE", FALSE)); + + return TRUE; + +fail: + if (svga->swtnl.backend) + svga->swtnl.backend->destroy( svga->swtnl.backend ); + + if (svga->swtnl.draw) + draw_destroy( svga->swtnl.draw ); + + return FALSE; +} + + +void svga_destroy_swtnl( struct svga_context *svga ) +{ + draw_destroy( svga->swtnl.draw ); +} |