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authorNanley Chery <[email protected]>2015-05-21 14:27:55 -0700
committerNanley Chery <[email protected]>2015-08-26 14:36:43 -0700
commita6877341358e1534e74dd9e5fc72934a20b78228 (patch)
tree97b61a8c18f4bba93622b187f675d1ab9aac2f03
parent1a9ceed4ba764cf73a643f8f2135b5b84cfe4581 (diff)
i965: change the meaning of cpp for compressed textures
An ASTC block takes up 16 bytes for all block width and height configurations. This size is not integrally divisible by all ASTC block widths. Therefore cpp is changed to mean bytes per block if the texture is compressed. Because the original definition was bytes per block divided by block width, all references to the mipmap width must be divided the block width. This keeps the address calculation formulas consistent. For example, the units for miptree_level x_offset and miptree total_width has changed from pixels to blocks. v2: reuse preexisting ALIGN_NPOT macro located in an i965 driver file. v3: move ALIGN_NPOT into seperate commit. simplify cpp assignment in copy_image_with_blitter(). update miptree width and offset variables in: intel_miptree_copy_slice(), intel_miptree_map_gtt(), and brw_miptree_layout_texture_3d(). Reviewed-by: Anuj Phogat <[email protected]> Signed-off-by: Nanley Chery <[email protected]>
-rw-r--r--src/mesa/drivers/dri/i965/brw_tex_layout.c15
-rw-r--r--src/mesa/drivers/dri/i965/intel_copy_image.c19
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.c14
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.h2
4 files changed, 15 insertions, 35 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c
index e8a92dde8a9..a95ac95f15d 100644
--- a/src/mesa/drivers/dri/i965/brw_tex_layout.c
+++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c
@@ -395,6 +395,7 @@ brw_miptree_layout_2d(struct intel_mipmap_tree *mt)
}
}
+ mt->total_width /= bw;
mt->total_height = 0;
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
@@ -419,7 +420,7 @@ brw_miptree_layout_2d(struct intel_mipmap_tree *mt)
/* Layout_below: step right after second mipmap.
*/
if (level == mt->first_level + 1) {
- x += ALIGN_NPOT(width, mt->align_w);
+ x += ALIGN_NPOT(width, mt->align_w) / bw;
} else {
y += img_height;
}
@@ -579,12 +580,14 @@ static void
brw_miptree_layout_texture_3d(struct brw_context *brw,
struct intel_mipmap_tree *mt)
{
- unsigned yscale = mt->compressed ? 4 : 1;
-
mt->total_width = 0;
mt->total_height = 0;
unsigned ysum = 0;
+ unsigned bh, bw;
+
+ _mesa_get_format_block_size(mt->format, &bw, &bh);
+
for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
unsigned WL = MAX2(mt->physical_width0 >> level, 1);
unsigned HL = MAX2(mt->physical_height0 >> level, 1);
@@ -601,9 +604,9 @@ brw_miptree_layout_texture_3d(struct brw_context *brw,
unsigned x = (q % (1 << level)) * wL;
unsigned y = ysum + (q >> level) * hL;
- intel_miptree_set_image_offset(mt, level, q, x, y / yscale);
- mt->total_width = MAX2(mt->total_width, x + wL);
- mt->total_height = MAX2(mt->total_height, (y + hL) / yscale);
+ intel_miptree_set_image_offset(mt, level, q, x / bw, y / bh);
+ mt->total_width = MAX2(mt->total_width, (x + wL) / bw);
+ mt->total_height = MAX2(mt->total_height, (y + hL) / bh);
}
ysum += ALIGN(DL, 1 << level) / (1 << level) * hL;
diff --git a/src/mesa/drivers/dri/i965/intel_copy_image.c b/src/mesa/drivers/dri/i965/intel_copy_image.c
index 3706704bf1a..ac2738f59a0 100644
--- a/src/mesa/drivers/dri/i965/intel_copy_image.c
+++ b/src/mesa/drivers/dri/i965/intel_copy_image.c
@@ -41,7 +41,6 @@ copy_image_with_blitter(struct brw_context *brw,
{
GLuint bw, bh;
uint32_t src_image_x, src_image_y, dst_image_x, dst_image_y;
- int cpp;
/* The blitter doesn't understand multisampling at all. */
if (src_mt->num_samples > 0 || dst_mt->num_samples > 0)
@@ -86,16 +85,6 @@ copy_image_with_blitter(struct brw_context *brw,
src_y /= (int)bh;
src_width /= (int)bw;
src_height /= (int)bh;
-
- /* Inside of the miptree, the x offsets are stored in pixels while
- * the y offsets are stored in blocks. We need to scale just the x
- * offset.
- */
- src_image_x /= bw;
-
- cpp = _mesa_get_format_bytes(src_mt->format);
- } else {
- cpp = src_mt->cpp;
}
src_x += src_image_x;
src_y += src_image_y;
@@ -111,18 +100,12 @@ copy_image_with_blitter(struct brw_context *brw,
dst_x /= (int)bw;
dst_y /= (int)bh;
-
- /* Inside of the miptree, the x offsets are stored in pixels while
- * the y offsets are stored in blocks. We need to scale just the x
- * offset.
- */
- dst_image_x /= bw;
}
dst_x += dst_image_x;
dst_y += dst_image_y;
return intelEmitCopyBlit(brw,
- cpp,
+ src_mt->cpp,
src_mt->pitch,
src_mt->bo, src_mt->offset,
src_mt->tiling,
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 44eb91327d3..0bcbbbcde8f 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -313,15 +313,7 @@ intel_miptree_create_layout(struct brw_context *brw,
mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_NO_MCS;
mt->disable_aux_buffers = (layout_flags & MIPTREE_LAYOUT_DISABLE_AUX) != 0;
exec_list_make_empty(&mt->hiz_map);
-
- /* The cpp is bytes per (1, blockheight)-sized block for compressed
- * textures. This is why you'll see divides by blockheight all over
- */
- unsigned bw, bh;
- _mesa_get_format_block_size(format, &bw, &bh);
- assert(_mesa_get_format_bytes(mt->format) % bw == 0);
- mt->cpp = _mesa_get_format_bytes(mt->format) / bw;
-
+ mt->cpp = _mesa_get_format_bytes(format);
mt->num_samples = num_samples;
mt->compressed = _mesa_is_format_compressed(format);
mt->msaa_layout = INTEL_MSAA_LAYOUT_NONE;
@@ -1273,7 +1265,7 @@ intel_miptree_copy_slice(struct brw_context *brw,
unsigned int i, j;
_mesa_get_format_block_size(dst_mt->format, &i, &j);
height = ALIGN_NPOT(height, j) / j;
- width = ALIGN_NPOT(width, i);
+ width = ALIGN_NPOT(width, i) / i;
}
/* If it's a packed depth/stencil buffer with separate stencil, the blit
@@ -2105,7 +2097,9 @@ intel_miptree_map_gtt(struct brw_context *brw,
*/
_mesa_get_format_block_size(mt->format, &bw, &bh);
assert(y % bh == 0);
+ assert(x % bw == 0);
y /= bh;
+ x /= bw;
base = intel_miptree_map_raw(brw, mt) + mt->offset;
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index 790d3129207..c28162a1983 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -390,7 +390,7 @@ struct intel_mipmap_tree
*/
GLuint physical_width0, physical_height0, physical_depth0;
- GLuint cpp; /**< bytes per pixel */
+ GLuint cpp; /**< bytes per pixel (or bytes per block if compressed) */
GLuint num_samples;
bool compressed;