diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 65 |
1 files changed, 62 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index 31386b99656..fb896a92263 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -558,6 +558,53 @@ intel_lower_compressed_format(struct brw_context *brw, mesa_format format) } } +/* This function computes Yf/Ys tiled bo size, alignment and pitch. */ +static uint64_t +intel_get_yf_ys_bo_size(struct intel_mipmap_tree *mt, unsigned *alignment, + uint64_t *pitch) +{ + const uint32_t bpp = mt->cpp * 8; + const uint32_t aspect_ratio = (bpp == 16 || bpp == 64) ? 2 : 1; + uint32_t tile_width, tile_height; + uint64_t stride, size, aligned_y; + + assert(mt->tr_mode != INTEL_MIPTREE_TRMODE_NONE); + + switch (bpp) { + case 8: + tile_height = 64; + break; + case 16: + case 32: + tile_height = 32; + break; + case 64: + case 128: + tile_height = 16; + break; + default: + unreachable("not reached"); + } + + if (mt->tr_mode == INTEL_MIPTREE_TRMODE_YS) + tile_height *= 4; + + aligned_y = ALIGN(mt->total_height, tile_height); + stride = mt->total_width * mt->cpp; + tile_width = tile_height * mt->cpp * aspect_ratio; + stride = ALIGN(stride, tile_width); + size = stride * aligned_y; + + if (mt->tr_mode == INTEL_MIPTREE_TRMODE_YF) { + assert(size % 4096 == 0); + *alignment = 4096; + } else { + assert(size % (64 * 1024) == 0); + *alignment = 64 * 1024; + } + *pitch = stride; + return size; +} struct intel_mipmap_tree * intel_miptree_create(struct brw_context *brw, @@ -616,10 +663,22 @@ intel_miptree_create(struct brw_context *brw, alloc_flags |= BO_ALLOC_FOR_RENDER; unsigned long pitch; - mt->bo = drm_intel_bo_alloc_tiled(brw->bufmgr, "miptree", total_width, - total_height, mt->cpp, &mt->tiling, - &pitch, alloc_flags); mt->etc_format = etc_format; + + if (mt->tr_mode != INTEL_MIPTREE_TRMODE_NONE) { + unsigned alignment = 0; + unsigned long size; + size = intel_get_yf_ys_bo_size(mt, &alignment, &pitch); + assert(size); + mt->bo = drm_intel_bo_alloc_for_render(brw->bufmgr, "miptree", + size, alignment); + } else { + mt->bo = drm_intel_bo_alloc_tiled(brw->bufmgr, "miptree", + total_width, total_height, mt->cpp, + &mt->tiling, &pitch, + alloc_flags); + } + mt->pitch = pitch; /* If the BO is too large to fit in the aperture, we need to use the |