fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 04:38:03 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

gallium: emit sprite coords (gl_PointCoord)

Browse source
This commit is contained in:
Brian Paul 2008-08-11 14:59:26 -06:00
parent 5549d35db5
commit 22604727e4
1 changed files with 21 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
src/gallium/auxiliary/draw/draw_pipe_wide_point.c
View file

@ -50,6 +50,8 @@ struct widepoint_stage {
uint num_texcoords;
int psize_slot;
int point_coord_fs_input; /**< input for pointcoord (and fog) */
};
@ -84,6 +86,13 @@ static void set_texcoords(const struct widepoint_stage *wide,
v->data[j][3] = tc[3];
}
}
if (wide->point_coord_fs_input >= 0) {
/* put gl_PointCoord into extra vertex output's zw components */
uint k = wide->stage.draw->extra_vp_outputs.slot;
v->data[k][2] = tc[0];
v->data[k][3] = tc[1];
}
}
@ -208,6 +217,18 @@ static void widepoint_first_point( struct draw_stage *stage,
}
}
wide->num_texcoords = j;
/* find fragment shader PointCoord/Fog input */
wide->point_coord_fs_input = 0; /* XXX fix this! */
/* setup extra vp output */
draw->extra_vp_outputs.semantic_name = TGSI_SEMANTIC_FOG;
draw->extra_vp_outputs.semantic_index = 0;
draw->extra_vp_outputs.slot = draw->vs.num_vs_outputs;
}
else {
wide->point_coord_fs_input = -1;
draw->extra_vp_outputs.slot = 0;
}
wide->psize_slot = -1;