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-rw-r--r--src/mesa/drivers/dri/r300/r300_blit.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_blit.c b/src/mesa/drivers/dri/r300/r300_blit.c
index 9e3836a7baf..2eec27e900f 100644
--- a/src/mesa/drivers/dri/r300/r300_blit.c
+++ b/src/mesa/drivers/dri/r300/r300_blit.c
@@ -543,6 +543,16 @@ GLboolean r300_blit(struct r300_context *r300,
if (_mesa_get_format_bits(src_mesaformat, GL_DEPTH_BITS) > 0)
return GL_FALSE;
+ /* Make sure that colorbuffer has even width - hw limitation */
+ if (dst_pitch % 2 > 0)
+ ++dst_pitch;
+
+ /* Rendering to small buffer doesn't work.
+ * Looks like a hw limitation.
+ */
+ if (dst_pitch < 32)
+ return GL_FALSE;
+
/* Need to clamp the region size to make sure
* we don't read outside of the source buffer
* or write outside of the destination buffer.
@@ -564,7 +574,7 @@ GLboolean r300_blit(struct r300_context *r300,
fprintf(stderr, "src: size [%d x %d], pitch %d, "
"offset [%d x %d], format %s, bo %p\n",
src_width, src_height, src_pitch,
- src_offset, src_y_offset,
+ src_x_offset, src_y_offset,
_mesa_get_format_name(src_mesaformat),
src_bo);
fprintf(stderr, "dst: pitch %d, offset[%d x %d], format %s, bo %p\n",
@@ -573,6 +583,9 @@ GLboolean r300_blit(struct r300_context *r300,
fprintf(stderr, "region: %d x %d\n", reg_width, reg_height);
}
+ /* Flush is needed to make sure that source buffer has correct data */
+ radeonFlush(r300->radeon.glCtx);
+
if (!validate_buffers(r300, src_bo, dst_bo))
return GL_FALSE;