diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_blit.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c index 7252e5d318c..247816d20f6 100644 --- a/src/mesa/drivers/dri/i965/intel_blit.c +++ b/src/mesa/drivers/dri/i965/intel_blit.c @@ -130,6 +130,15 @@ set_blitter_tiling(struct brw_context *brw, ADVANCE_BATCH(); \ } while (0) +static int +blt_pitch(struct intel_mipmap_tree *mt) +{ + int pitch = mt->pitch; + if (mt->tiling) + pitch /= 4; + return pitch; +} + /** * Implements a rectangular block transfer (blit) of pixels between two * miptrees. @@ -197,14 +206,14 @@ intel_miptree_blit(struct brw_context *brw, * * Furthermore, intelEmitCopyBlit (which is called below) uses a signed * 16-bit integer to represent buffer pitch, so it can only handle buffer - * pitches < 32k. + * pitches < 32k. However, the pitch is measured in bytes for linear buffers + * and dwords for tiled buffers. * * As a result of these two limitations, we can only use the blitter to do - * this copy when the miptree's pitch is less than 32k. + * this copy when the miptree's pitch is less than 32k linear or 128k tiled. */ - if (src_mt->pitch >= 32768 || - dst_mt->pitch >= 32768) { - perf_debug("Falling back due to >=32k pitch\n"); + if (blt_pitch(src_mt) >= 32768 || blt_pitch(dst_mt) >= 32768) { + perf_debug("Falling back due to >= 32k/128k pitch\n"); return false; } |