From ac7c8f7dd3649507f6a5dc4d5222124dd954cbfd Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Sun, 30 May 2010 13:26:36 +0100 Subject: util: allocate larger tmp_row in util_format_translate The tmp_row storage allocation took into account the format's y block size by allocating y_step rows of data. However, the x block size was not being taken into account when deciding how wide those rows need to be. Now make sure that tmp_row is at least x_step by y_step in size. --- src/gallium/auxiliary/util/u_format.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'src/gallium') diff --git a/src/gallium/auxiliary/util/u_format.c b/src/gallium/auxiliary/util/u_format.c index c50c807eb8..3168a1fab4 100644 --- a/src/gallium/auxiliary/util/u_format.c +++ b/src/gallium/auxiliary/util/u_format.c @@ -189,7 +189,7 @@ util_format_translate(enum pipe_format dst_format, const struct util_format_description *src_format_desc; uint8_t *dst_row; const uint8_t *src_row; - unsigned y_step; + unsigned x_step, y_step; unsigned dst_step; unsigned src_step; @@ -221,6 +221,7 @@ util_format_translate(enum pipe_format dst_format, */ y_step = MAX2(dst_format_desc->block.height, src_format_desc->block.height); + x_step = MAX2(dst_format_desc->block.width, src_format_desc->block.width); assert(y_step % dst_format_desc->block.height == 0); assert(y_step % src_format_desc->block.height == 0); @@ -237,7 +238,7 @@ util_format_translate(enum pipe_format dst_format, unsigned tmp_stride; uint8_t *tmp_row; - tmp_stride = width * 4 * sizeof *tmp_row; + tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; tmp_row = MALLOC(y_step * tmp_stride); if (!tmp_row) return; @@ -262,7 +263,7 @@ util_format_translate(enum pipe_format dst_format, unsigned tmp_stride; float *tmp_row; - tmp_stride = width * 4 * sizeof *tmp_row; + tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; tmp_row = MALLOC(y_step * tmp_stride); if (!tmp_row) return; -- cgit v1.2.3