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authorSamuel Iglesias Gonsalvez <[email protected]>2015-01-22 16:01:57 +0100
committerIago Toral Quiroga <[email protected]>2015-02-24 08:58:53 +0100
commitfbd6eba72bd282297c5f49371e89a1c18cb24151 (patch)
treeaac2f321ac4d344f7dc8dde9bc456716dbda8e74 /src
parent4a6c6c49a7236b1471df143a697195f0c11eb23c (diff)
i965/blorp: round to nearest when converting float into integer
Fixes: dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_nearest dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_linear dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_y_nearest dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_y_linear dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_dst_y_nearest dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_dst_y_linear dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_dst_x_nearest dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_dst_x_linear dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_dst_y_nearest dEQP-GLES3.functional.fbo.blit.rect.out_of_bounds_reverse_src_dst_y_linear No piglit regressions. Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]> Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp_blit.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index 5c936cf8180..644cb4170b6 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -1992,10 +1992,13 @@ brw_blorp_blit_params::brw_blorp_blit_params(struct brw_context *brw,
wm_prog_key.src_tiled_w = src.map_stencil_as_y_tiled;
wm_prog_key.dst_tiled_w = dst.map_stencil_as_y_tiled;
- x0 = wm_push_consts.dst_x0 = dst_x0;
- y0 = wm_push_consts.dst_y0 = dst_y0;
- x1 = wm_push_consts.dst_x1 = dst_x1;
- y1 = wm_push_consts.dst_y1 = dst_y1;
+ /* Round floating point values to nearest integer to avoid "off by one texel"
+ * kind of errors when blitting.
+ */
+ x0 = wm_push_consts.dst_x0 = roundf(dst_x0);
+ y0 = wm_push_consts.dst_y0 = roundf(dst_y0);
+ x1 = wm_push_consts.dst_x1 = roundf(dst_x1);
+ y1 = wm_push_consts.dst_y1 = roundf(dst_y1);
wm_push_consts.rect_grid_x1 = (minify(src_mt->logical_width0, src_level) *
wm_prog_key.x_scale - 1.0);
wm_push_consts.rect_grid_y1 = (minify(src_mt->logical_height0, src_level) *