diff options
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_wide_point.c | 1 | ||||
| -rw-r--r-- | src/gallium/docs/source/cso/rasterizer.rst | 14 | ||||
| -rw-r--r-- | src/gallium/drivers/nv30/nv30_state.c | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/nv40/nv40_state.c | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_state.c | 2 | ||||
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_video_context.c | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/svga/svga_pipe_rasterizer.c | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/trace/tr_dump_state.c | 1 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_state.h | 1 | ||||
| -rw-r--r-- | src/mesa/state_tracker/st_atom_rasterizer.c | 3 |
10 files changed, 22 insertions, 6 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c index d9d4d2a8b6..fdabce7d44 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c +++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c @@ -128,6 +128,7 @@ static void set_texcoords(const struct widepoint_stage *wide, static void widepoint_point( struct draw_stage *stage, struct prim_header *header ) { + /* XXX should take point_quad_rasterization into account? */ const struct widepoint_stage *wide = widepoint_stage(stage); const unsigned pos = draw_current_shader_position_output(stage->draw); const boolean sprite = (boolean) stage->draw->rasterizer->sprite_coord_enable; diff --git a/src/gallium/docs/source/cso/rasterizer.rst b/src/gallium/docs/source/cso/rasterizer.rst index 721229d67d..00d65fc598 100644 --- a/src/gallium/docs/source/cso/rasterizer.rst +++ b/src/gallium/docs/source/cso/rasterizer.rst @@ -85,8 +85,10 @@ point_size sprite_coord_enable Specifies if a coord has its texture coordinates replaced or not. This is a packed bitfield containing the enable for all coords - if all are 0 - point sprites are effectively disabled. If any coord is non-zero, - point_smooth should be disabled. + point sprites are effectively disabled, though points may still be + rendered slightly different according to point_quad_rasterization. + If any coord is non-zero, point_smooth should be disabled, and + point_quad_rasterization enabled. If enabled, the four vertices of the resulting quad will be assigned texture coordinates, according to sprite_coord_mode. sprite_coord_mode @@ -103,6 +105,14 @@ sprite_coord_mode Note that when geometry shaders are available, this state could be removed. A special geometry shader defined by the state tracker could convert the incoming points into quads with the proper texture coords. +point_quad_rasterization + This determines if points should be rasterized as quads or points. + d3d always uses quad rasterization for points, regardless if point sprites + are enabled or not, but OGL has different rules. If point_quad_rasterization + is set, point_smooth should be disabled, and points will be rendered as + squares even if multisample is enabled. + sprite_coord_enable should be zero if point_quad_rasterization is not + enabled. scissor Whether the scissor test is enabled. diff --git a/src/gallium/drivers/nv30/nv30_state.c b/src/gallium/drivers/nv30/nv30_state.c index ab9fc5293c..66096de61e 100644 --- a/src/gallium/drivers/nv30/nv30_state.c +++ b/src/gallium/drivers/nv30/nv30_state.c @@ -391,7 +391,7 @@ nv30_rasterizer_state_create(struct pipe_context *pipe, } so_method(so, rankine, NV34TCL_POINT_SPRITE, 1); - if (cso->sprite_coord_enable) { + if (cso->point_quad_rasterization) { unsigned psctl = (1 << 0), i; for (i = 0; i < 8; i++) { diff --git a/src/gallium/drivers/nv40/nv40_state.c b/src/gallium/drivers/nv40/nv40_state.c index a5c5e291f3..5084c48eeb 100644 --- a/src/gallium/drivers/nv40/nv40_state.c +++ b/src/gallium/drivers/nv40/nv40_state.c @@ -401,7 +401,7 @@ nv40_rasterizer_state_create(struct pipe_context *pipe, } so_method(so, curie, NV40TCL_POINT_SPRITE, 1); - if (cso->sprite_coord_enable) { + if (cso->point_quad_rasterization) { unsigned psctl = (1 << 0), i; for (i = 0; i < 8; i++) { diff --git a/src/gallium/drivers/nv50/nv50_state.c b/src/gallium/drivers/nv50/nv50_state.c index cbe2f349c2..f19a21d5cc 100644 --- a/src/gallium/drivers/nv50/nv50_state.c +++ b/src/gallium/drivers/nv50/nv50_state.c @@ -318,7 +318,7 @@ nv50_rasterizer_state_create(struct pipe_context *pipe, so_data (so, fui(cso->point_size)); so_method(so, tesla, NV50TCL_POINT_SPRITE_ENABLE, 1); - so_data (so, cso->sprite_coord_enable ? 1 : 0); + so_data (so, cso->point_quad_rasterization ? 1 : 0); so_method(so, tesla, NV50TCL_POLYGON_MODE_FRONT, 3); if (cso->front_winding == PIPE_WINDING_CCW) { diff --git a/src/gallium/drivers/softpipe/sp_video_context.c b/src/gallium/drivers/softpipe/sp_video_context.c index 7dde3c1330..cfa2a0b2f1 100644 --- a/src/gallium/drivers/softpipe/sp_video_context.c +++ b/src/gallium/drivers/softpipe/sp_video_context.c @@ -178,6 +178,7 @@ init_pipe_state(struct sp_mpeg12_context *ctx) rast.bypass_vs_clip_and_viewport = 0; rast.line_width = 1; rast.point_smooth = 0; + rast.point_quad_rasterization = 0; rast.point_size = 1; rast.offset_units = 1; rast.offset_scale = 1; diff --git a/src/gallium/drivers/svga/svga_pipe_rasterizer.c b/src/gallium/drivers/svga/svga_pipe_rasterizer.c index 0a613cb553..09ccb71884 100644 --- a/src/gallium/drivers/svga/svga_pipe_rasterizer.c +++ b/src/gallium/drivers/svga/svga_pipe_rasterizer.c @@ -72,6 +72,7 @@ svga_create_rasterizer_state(struct pipe_context *pipe, /* poly_smooth - XXX: no fallback available */ /* poly_stipple_enable - draw module */ /* sprite_coord_enable - ? */ + /* point_quad_rasterization - ? */ /* point_size_per_vertex - ? */ /* sprite_coord_mode - ??? */ /* bypass_vs_viewport_and_clip - handled by viewport setup */ diff --git a/src/gallium/drivers/trace/tr_dump_state.c b/src/gallium/drivers/trace/tr_dump_state.c index ed327f60f0..720b6cd1ff 100644 --- a/src/gallium/drivers/trace/tr_dump_state.c +++ b/src/gallium/drivers/trace/tr_dump_state.c @@ -114,6 +114,7 @@ void trace_dump_rasterizer_state(const struct pipe_rasterizer_state *state) trace_dump_member(bool, state, point_smooth); trace_dump_member(uint, state, sprite_coord_enable); trace_dump_member(bool, state, sprite_coord_mode); + trace_dump_member(bool, state, point_quad_rasterization); trace_dump_member(bool, state, point_size_per_vertex); trace_dump_member(bool, state, multisample); trace_dump_member(bool, state, line_smooth); diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h index 50a4cd6e13..4387b92be2 100644 --- a/src/gallium/include/pipe/p_state.h +++ b/src/gallium/include/pipe/p_state.h @@ -103,6 +103,7 @@ struct pipe_rasterizer_state unsigned point_smooth:1; unsigned sprite_coord_enable:PIPE_MAX_SHADER_OUTPUTS; unsigned sprite_coord_mode:1; /**< PIPE_SPRITE_COORD_ */ + unsigned point_quad_rasterization:1; /** points rasterized as quads or points */ unsigned point_size_per_vertex:1; /**< size computed in vertex shader */ unsigned multisample:1; /* XXX maybe more ms state in future */ unsigned line_smooth:1; diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c index 16c842d2f6..9c9a99bcfc 100644 --- a/src/mesa/state_tracker/st_atom_rasterizer.c +++ b/src/mesa/state_tracker/st_atom_rasterizer.c @@ -183,7 +183,7 @@ static void update_raster_state( struct st_context *st ) if (ctx->Polygon.StippleFlag) raster->poly_stipple_enable = 1; - + /* _NEW_POINT */ raster->point_size = ctx->Point.Size; @@ -202,6 +202,7 @@ static void update_raster_state( struct st_context *st ) raster->sprite_coord_enable |= 1 << i; } } + raster->point_quad_rasterization = 1; } /* ST_NEW_VERTEX_PROGRAM |