diff options
Diffstat (limited to 'src/gallium/auxiliary/draw')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.c | 16 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_context.h | 5 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_offset.c | 3 | ||||
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_private.h | 2 |
4 files changed, 20 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index b2a34811c2..7bd4a2e221 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -103,6 +103,18 @@ void draw_flush( struct draw_context *draw ) } +/** + * Specify the Minimum Resolvable Depth factor for polygon offset. + * This factor potentially depends on the number of Z buffer bits, + * the rasterization algorithm and the arithmetic performed on Z + * values between vertex shading and rasterization. It will vary + * from one driver to another. + */ +void draw_set_mrd(struct draw_context *draw, double mrd) +{ + draw->mrd = mrd; +} + /** * Register new primitive rasterization/rendering state. @@ -377,7 +389,7 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw, unsigned eltSize, unsigned min_index, unsigned max_index, - void *elements ) + const void *elements ) { draw->pt.user.elts = elements; draw->pt.user.eltSize = eltSize; @@ -389,7 +401,7 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw, void draw_set_mapped_element_buffer( struct draw_context *draw, unsigned eltSize, - void *elements ) + const void *elements ) { draw->pt.user.elts = elements; draw->pt.user.eltSize = eltSize; diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h index 8f5cecf438..d529e4e9a2 100644 --- a/src/gallium/auxiliary/draw/draw_context.h +++ b/src/gallium/auxiliary/draw/draw_context.h @@ -72,6 +72,7 @@ void draw_enable_line_stipple(struct draw_context *draw, boolean enable); void draw_enable_point_sprites(struct draw_context *draw, boolean enable); +void draw_set_mrd(struct draw_context *draw, double mrd); boolean draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe); @@ -129,11 +130,11 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw, unsigned eltSize, unsigned min_index, unsigned max_index, - void *elements ); + const void *elements ); void draw_set_mapped_element_buffer( struct draw_context *draw, unsigned eltSize, - void *elements ); + const void *elements ); void draw_set_mapped_vertex_buffer(struct draw_context *draw, unsigned attr, const void *buffer); diff --git a/src/gallium/auxiliary/draw/draw_pipe_offset.c b/src/gallium/auxiliary/draw/draw_pipe_offset.c index 1fea5e6dcb..8ddc4ee617 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_offset.c +++ b/src/gallium/auxiliary/draw/draw_pipe_offset.c @@ -122,9 +122,8 @@ static void offset_first_tri( struct draw_stage *stage, struct prim_header *header ) { struct offset_stage *offset = offset_stage(stage); - float mrd = 1.0f / 65535.0f; /* XXX this depends on depthbuffer bits! */ - offset->units = stage->draw->rasterizer->offset_units * mrd; + offset->units = stage->draw->rasterizer->offset_units * stage->draw->mrd; offset->scale = stage->draw->rasterizer->offset_scale; stage->tri = offset_tri; diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h index 6097fff2c6..81e4eae401 100644 --- a/src/gallium/auxiliary/draw/draw_private.h +++ b/src/gallium/auxiliary/draw/draw_private.h @@ -172,6 +172,8 @@ struct draw_context boolean force_passthrough; /**< never clip or shade */ + double mrd; /**< minimum resolvable depth value, for polygon offset */ + /* pipe state that we need: */ const struct pipe_rasterizer_state *rasterizer; struct pipe_viewport_state viewport; |