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path: root/src/gallium/auxiliary/draw/draw_context.c
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Diffstat (limited to 'src/gallium/auxiliary/draw/draw_context.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_context.c90
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;
}