[Mesa-dev] [PATCH 11/41] intel: Kill intel_mipmap_level::nr_images [v2]
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Fri Nov 18 13:52:32 PST 2011
From: Chad Versace <chad.versace at linux.intel.com>
For all texture targets except GL_TEXTURE_CUBE_MAP, the 'nr_images' and
'depth' fields of intel_mipmap_level were identical. In the exceptional
case, nr_images == 6 and depth == 1.
It is simple to determine if a texture is a cube or not, so the presence
of two fields here was not helpful. Worse, it was confusing. When we
eventually implement GL_ARB_texture_cube_map_array, this mess would have
become even more confusing.
This patch removes 'nr_images' and assigns to 'depth' a consistent
meaning: depth is the number of 2D slices at each miplevel. The exact
semantics of depth varies according to the texture target:
- For GL_TEXTURE_CUBE_MAP, depth is 6.
- For GL_TEXTURE_2D_ARRAY, depth is the number of array slices. It is
identical for all miplevels in the texture.
- For GL_TEXTURE_3D, it is the texture's depth at each miplevel. Its
value, like width and height, varies with miplevel.
- For other texture types, depth is 1.
As a consequence, parameters were removed from the following function
signatures:
intel_miptree_set_level_info
Remove 'nr_images'.
i945_miptree_layout
brw_miptree_layout_texture
brw_miptree_layout_texture_array
Remove 'slices'.
v2:
- Replace "It's" with "Its".
- Remove all hunks in intel_fbo.c. The hunks were spurious and sneaked
in during a rebase.
- Remove unneeded hunk in intel_tex_map_image_for_swrast(). It was
a little refactor of the for-loop's upper bound.
CC: Eric Anholt <eric at anholt.net>
Signed-off-by: Chad Versace <chad.versace at linux.intel.com>
---
src/mesa/drivers/dri/i965/brw_tex_layout.c | 17 ++++-----
src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 44 +++++++++++------------
src/mesa/drivers/dri/intel/intel_mipmap_tree.h | 18 +++++++---
src/mesa/drivers/dri/intel/intel_tex_layout.c | 4 +-
src/mesa/drivers/dri/intel/intel_tex_layout.h | 3 +-
src/mesa/drivers/dri/intel/intel_tex_validate.c | 2 +-
6 files changed, 46 insertions(+), 42 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c
index d77bf4d..ac6ade6 100644
--- a/src/mesa/drivers/dri/i965/brw_tex_layout.c
+++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c
@@ -41,8 +41,7 @@
static void
brw_miptree_layout_texture_array(struct intel_context *intel,
- struct intel_mipmap_tree *mt,
- int slices)
+ struct intel_mipmap_tree *mt)
{
GLuint align_w;
GLuint align_h;
@@ -58,14 +57,14 @@ brw_miptree_layout_texture_array(struct intel_context *intel,
if (mt->compressed)
qpitch /= 4;
- i945_miptree_layout_2d(mt, slices);
+ i945_miptree_layout_2d(mt);
for (level = mt->first_level; level <= mt->last_level; level++) {
- for (q = 0; q < slices; q++) {
+ for (q = 0; q < mt->depth0; q++) {
intel_miptree_set_image_offset(mt, level, q, 0, q * qpitch);
}
}
- mt->total_height = qpitch * slices;
+ mt->total_height = qpitch * mt->depth0;
}
void
@@ -82,7 +81,7 @@ brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt)
* pitch of qpitch rows, where qpitch is defined by the equation given
* in Volume 1 of the BSpec.
*/
- brw_miptree_layout_texture_array(intel, mt, 6);
+ brw_miptree_layout_texture_array(intel, mt);
break;
}
/* FALLTHROUGH */
@@ -117,7 +116,7 @@ brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt)
GLint y = 0;
GLint q, j;
- intel_miptree_set_level_info(mt, level, nr_images,
+ intel_miptree_set_level_info(mt, level,
0, mt->total_height,
width, height, depth);
@@ -170,11 +169,11 @@ brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt)
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_1D_ARRAY:
- brw_miptree_layout_texture_array(intel, mt, mt->depth0);
+ brw_miptree_layout_texture_array(intel, mt);
break;
default:
- i945_miptree_layout_2d(mt, 1);
+ i945_miptree_layout_2d(mt);
break;
}
DBG("%s: %dx%dx%d\n", __FUNCTION__,
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
index 8f10101..8b9bd19 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
@@ -82,11 +82,17 @@ intel_miptree_create_internal(struct intel_context *intel,
mt->last_level = last_level;
mt->width0 = width0;
mt->height0 = height0;
- mt->depth0 = depth0;
mt->cpp = compress_byte ? compress_byte : _mesa_get_format_bytes(mt->format);
mt->compressed = compress_byte ? 1 : 0;
mt->refcount = 1;
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ assert(depth0 == 1);
+ mt->depth0 = 6;
+ } else {
+ mt->depth0 = depth0;
+ }
+
#ifdef I915
(void) intel;
if (intel->is_945)
@@ -287,7 +293,6 @@ intel_miptree_match_image(struct intel_mipmap_tree *mt,
void
intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
GLuint level,
- GLuint nr_images,
GLuint x, GLuint y,
GLuint w, GLuint h, GLuint d)
{
@@ -296,15 +301,13 @@ intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
mt->level[level].depth = d;
mt->level[level].level_x = x;
mt->level[level].level_y = y;
- mt->level[level].nr_images = nr_images;
DBG("%s level %d size: %d,%d,%d offset %d,%d\n", __FUNCTION__,
level, w, h, d, x, y);
- assert(nr_images);
assert(mt->level[level].slice == NULL);
- mt->level[level].slice = malloc(nr_images * sizeof(*mt->level[0].slice));
+ mt->level[level].slice = malloc(d * sizeof(*mt->level[0].slice));
mt->level[level].slice[0].x_offset = mt->level[level].level_x;
mt->level[level].slice[0].y_offset = mt->level[level].level_y;
}
@@ -318,7 +321,7 @@ intel_miptree_set_image_offset(struct intel_mipmap_tree *mt,
if (img == 0 && level == 0)
assert(x == 0 && y == 0);
- assert(img < mt->level[level].nr_images);
+ assert(img < mt->level[level].depth);
mt->level[level].slice[img].x_offset = mt->level[level].level_x + x;
mt->level[level].slice[img].y_offset = mt->level[level].level_y + y;
@@ -335,23 +338,18 @@ intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
GLuint level, GLuint face, GLuint depth,
GLuint *x, GLuint *y)
{
- switch (mt->target) {
- case GL_TEXTURE_CUBE_MAP_ARB:
- *x = mt->level[level].slice[face].x_offset;
- *y = mt->level[level].slice[face].y_offset;
- break;
- case GL_TEXTURE_3D:
- case GL_TEXTURE_2D_ARRAY_EXT:
- case GL_TEXTURE_1D_ARRAY_EXT:
- assert(depth < mt->level[level].nr_images);
- *x = mt->level[level].slice[depth].x_offset;
- *y = mt->level[level].slice[depth].y_offset;
- break;
- default:
- *x = mt->level[level].slice[0].x_offset;
- *y = mt->level[level].slice[0].y_offset;
- break;
+ int slice;
+
+ if (face > 0) {
+ assert(face < 6);
+ assert(depth == 0);
+ slice = face;
+ } else {
+ slice = depth;
}
+
+ *x = mt->level[level].slice[slice].x_offset;
+ *y = mt->level[level].slice[slice].y_offset;
}
static void
@@ -429,7 +427,7 @@ intel_miptree_copy_teximage(struct intel_context *intel,
struct intel_mipmap_tree *src_mt = intelImage->mt;
int level = intelImage->base.Base.Level;
int face = intelImage->base.Base.Face;
- GLuint depth = src_mt->level[level].depth;
+ GLuint depth = intelImage->base.Base.Depth;
for (int slice = 0; slice < depth; slice++) {
intel_miptree_copy_slice(intel, dst_mt, src_mt, level, face, slice);
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
index 2cad793..8f024f9 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
@@ -69,16 +69,25 @@ struct intel_mipmap_level
GLuint level_y;
GLuint width;
GLuint height;
- /** Depth of the mipmap at this level: 1 for 1D/2D/CUBE, n for 3D. */
+
+ /**
+ * \brief Number of 2D slices in this miplevel.
+ *
+ * The exact semantics of depth varies according to the texture target:
+ * - For GL_TEXTURE_CUBE_MAP, depth is 6.
+ * - For GL_TEXTURE_2D_ARRAY, depth is the number of array slices. It is
+ * identical for all miplevels in the texture.
+ * - For GL_TEXTURE_3D, it is the texture's depth at this miplevel. Its
+ * value, like width and height, varies with miplevel.
+ * - For other texture types, depth is 1.
+ */
GLuint depth;
- /** Number of images at this level: 1 for 1D/2D, 6 for CUBE, depth for 3D */
- GLuint nr_images;
/**
* \brief List of 2D images in this mipmap level.
*
* This may be a list of cube faces, array slices in 2D array texture, or
- * layers in a 3D texture. The list's length is \c nr_images.
+ * layers in a 3D texture. The list's length is \c depth.
*/
struct intel_mipmap_slice {
/**
@@ -205,7 +214,6 @@ intel_miptree_get_dimensions_for_image(struct gl_texture_image *image,
void intel_miptree_set_level_info(struct intel_mipmap_tree *mt,
GLuint level,
- GLuint nr_images,
GLuint x, GLuint y,
GLuint w, GLuint h, GLuint d);
diff --git a/src/mesa/drivers/dri/intel/intel_tex_layout.c b/src/mesa/drivers/dri/intel/intel_tex_layout.c
index 64f4a70..e6324cf 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_layout.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_layout.c
@@ -50,7 +50,7 @@ intel_get_texture_alignment_unit(gl_format format,
}
}
-void i945_miptree_layout_2d(struct intel_mipmap_tree *mt, int nr_images)
+void i945_miptree_layout_2d(struct intel_mipmap_tree *mt)
{
GLuint align_h, align_w;
GLuint level;
@@ -93,7 +93,7 @@ void i945_miptree_layout_2d(struct intel_mipmap_tree *mt, int nr_images)
for ( level = mt->first_level ; level <= mt->last_level ; level++ ) {
GLuint img_height;
- intel_miptree_set_level_info(mt, level, nr_images, x, y, width,
+ intel_miptree_set_level_info(mt, level, x, y, width,
height, depth);
img_height = ALIGN(height, align_h);
diff --git a/src/mesa/drivers/dri/intel/intel_tex_layout.h b/src/mesa/drivers/dri/intel/intel_tex_layout.h
index 257c07c..c6c865d 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_layout.h
+++ b/src/mesa/drivers/dri/intel/intel_tex_layout.h
@@ -38,7 +38,6 @@ static INLINE GLuint minify( GLuint d )
return MAX2(1, d>>1);
}
-extern void i945_miptree_layout_2d(struct intel_mipmap_tree *mt,
- int nr_images);
+extern void i945_miptree_layout_2d(struct intel_mipmap_tree *mt);
void intel_get_texture_alignment_unit(gl_format format,
unsigned int *w, unsigned int *h);
diff --git a/src/mesa/drivers/dri/intel/intel_tex_validate.c b/src/mesa/drivers/dri/intel/intel_tex_validate.c
index f4c1a68..748fbdc 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_validate.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_validate.c
@@ -154,7 +154,7 @@ intel_tex_map_image_for_swrast(struct intel_context *intel,
intel_image->base.Data = intel_region_map(intel, mt->region, mode);
} else {
- assert(mt->level[level].depth == 1);
+ assert(intel_image->base.Base.Depth == 1);
intel_miptree_get_image_offset(mt, level, face, 0, &x, &y);
DBG("%s: (%d,%d) -> (%d, %d)/%d\n",
--
1.7.7.1
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