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radeonsi: support gl_FragCoord at integer pixel center

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No known benefit for OpenGL, but it doesn't hurt.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák
2014-11-17 20:51:56 +01:00
parent da2dea3843
commit 3958378abb
2 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/radeonsi/si_pipe.c
+1 -1
View File
@@ -183,6 +183,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
case PIPE_CAP_SM3:
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_PRIMITIVE_RESTART:
@@ -240,7 +241,6 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
/* Unsupported features. */
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
case PIPE_CAP_VERTEX_COLOR_CLAMPED:
src/gallium/drivers/radeonsi/si_state_draw.c
+4
View File
@@ -262,6 +262,10 @@ static void si_shader_ps(struct si_shader *shader)
spi_baryc_cntl |= S_0286E0_POS_FLOAT_LOCATION(2);
break;
}
if (info->properties[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER] ==
TGSI_FS_COORD_PIXEL_CENTER_INTEGER)
spi_baryc_cntl |= S_0286E0_POS_FLOAT_ULC(1);
break;
}
}