diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_context.c')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_context.c | 90 |
1 files changed, 74 insertions, 16 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index 4be3830316..428b6209e0 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -48,7 +48,8 @@ struct draw_context *draw_create( void ) #endif /* create pipeline stages */ - draw->pipeline.wide = draw_wide_stage( draw ); + draw->pipeline.wide_line = draw_wide_line_stage( draw ); + draw->pipeline.wide_point = draw_wide_point_stage( draw ); draw->pipeline.stipple = draw_stipple_stage( draw ); draw->pipeline.unfilled = draw_unfilled_stage( draw ); draw->pipeline.twoside = draw_twoside_stage( draw ); @@ -72,16 +73,17 @@ struct draw_context *draw_create( void ) { uint i; const unsigned size = (MAX_VERTEX_SIZE + 0x0f) & ~0x0f; - char *tmp = align_malloc(Elements(draw->vcache.vertex) * size, 16); + char *tmp = align_malloc(Elements(draw->vs.queue) * size, 16); - for (i = 0; i < Elements(draw->vcache.vertex); i++) - draw->vcache.vertex[i] = (struct vertex_header *)(tmp + i * size); + for (i = 0; i < Elements(draw->vs.queue); i++) + draw->vs.queue[i].vertex = (struct vertex_header *)(tmp + i * size); } draw->shader_queue_flush = draw_vertex_shader_queue_flush; - draw->convert_wide_points = TRUE; - draw->convert_wide_lines = TRUE; + /* these defaults are oriented toward the needs of softpipe */ + draw->wide_point_threshold = 1000000.0; /* infinity */ + draw->wide_line_threshold = 1.0; draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */ @@ -94,7 +96,8 @@ struct draw_context *draw_create( void ) void draw_destroy( struct draw_context *draw ) { - draw->pipeline.wide->destroy( draw->pipeline.wide ); + draw->pipeline.wide_line->destroy( draw->pipeline.wide_line ); + draw->pipeline.wide_point->destroy( draw->pipeline.wide_point ); draw->pipeline.stipple->destroy( draw->pipeline.stipple ); draw->pipeline.unfilled->destroy( draw->pipeline.unfilled ); draw->pipeline.twoside->destroy( draw->pipeline.twoside ); @@ -103,10 +106,14 @@ void draw_destroy( struct draw_context *draw ) draw->pipeline.flatshade->destroy( draw->pipeline.flatshade ); draw->pipeline.cull->destroy( draw->pipeline.cull ); draw->pipeline.validate->destroy( draw->pipeline.validate ); + if (draw->pipeline.aaline) + draw->pipeline.aaline->destroy( draw->pipeline.aaline ); + if (draw->pipeline.aapoint) + draw->pipeline.aapoint->destroy( draw->pipeline.aapoint ); if (draw->pipeline.rasterize) draw->pipeline.rasterize->destroy( draw->pipeline.rasterize ); tgsi_exec_machine_free_data(&draw->machine); - align_free( draw->vcache.vertex[0] ); /* Frees all the vertices. */ + align_free( draw->vs.queue[0].vertex ); /* Frees all the vertices. */ FREE( draw ); } @@ -216,26 +223,77 @@ draw_set_mapped_constant_buffer(struct draw_context *draw, /** - * Tells the draw module whether to convert wide points (size != 1) - * into triangles. + * Tells the draw module to draw points with triangles if their size + * is greater than this threshold. */ void -draw_convert_wide_points(struct draw_context *draw, boolean enable) +draw_wide_point_threshold(struct draw_context *draw, float threshold) { draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); - draw->convert_wide_points = enable; + draw->wide_point_threshold = threshold; } /** - * Tells the draw module whether to convert wide lines (width != 1) - * into triangles. + * Tells the draw module to draw lines with triangles if their width + * is greater than this threshold. */ void -draw_convert_wide_lines(struct draw_context *draw, boolean enable) +draw_wide_line_threshold(struct draw_context *draw, float threshold) { draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); - draw->convert_wide_lines = enable; + draw->wide_line_threshold = threshold; +} + + +/** + * Ask the draw module for the location/slot of the given vertex attribute in + * a post-transformed vertex. + * + * With this function, drivers that use the draw module should have no reason + * to track the current vertex shader. + * + * Note that the draw module may sometimes generate vertices with extra + * attributes (such as texcoords for AA lines). The driver can call this + * function to find those attributes. + * + * Zero is returned if the attribute is not found since this is + * a don't care / undefined situtation. Returning -1 would be a bit more + * work for the drivers. + */ +int +draw_find_vs_output(struct draw_context *draw, + uint semantic_name, uint semantic_index) +{ + const struct draw_vertex_shader *vs = draw->vertex_shader; + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == semantic_name && + vs->info.output_semantic_index[i] == semantic_index) + return i; + } + + /* XXX there may be more than one extra vertex attrib. + * For example, simulated gl_FragCoord and gl_PointCoord. + */ + if (draw->extra_vp_outputs.semantic_name == semantic_name && + draw->extra_vp_outputs.semantic_index == semantic_index) { + return draw->extra_vp_outputs.slot; + } + return 0; +} + + +/** + * Return number of vertex shader outputs. + */ +uint +draw_num_vs_outputs(struct draw_context *draw) +{ + uint count = draw->vertex_shader->info.num_outputs; + if (draw->extra_vp_outputs.slot >= 0) + count++; + return count; } |