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;
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
* 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 */
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);
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__,
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)
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)
{
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;
}
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;
}
+/**
+ * For cube map textures, either the \c face parameter can be used, of course,
+ * or the cube face can be interpreted as a depth layer and the \c layer
+ * parameter used.
+ */
void
intel_miptree_get_image_offset(struct intel_mipmap_tree *mt,
- GLuint level, GLuint face, GLuint depth,
+ GLuint level, GLuint face, GLuint layer,
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(mt->target == GL_TEXTURE_CUBE_MAP);
+ assert(face < 6);
+ assert(layer == 0);
+ slice = face;
+ } else {
+ /* This branch may be taken even if the texture target is a cube map. In
+ * that case, the caller chose to interpret each cube face as a layer.
+ */
+ assert(face == 0);
+ slice = layer;
}
+
+ *x = mt->level[level].slice[slice].x_offset;
+ *y = mt->level[level].slice[slice].y_offset;
}
static void
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);
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 {
/**
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);
}
}
-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;
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);
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);
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",
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