* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
-
/* Code to layout images in a mipmap tree for i965.
*/
#define FILE_DEBUG_FLAG DEBUG_MIPTREE
-GLboolean brw_miptree_layout( struct intel_context *intel, struct intel_mipmap_tree *mt )
+GLboolean brw_miptree_layout(struct intel_context *intel,
+ struct intel_mipmap_tree *mt,
+ uint32_t tiling)
{
- /* XXX: these vary depending on image format:
- */
-/* GLint align_w = 4; */
+ /* XXX: these vary depending on image format: */
+ /* GLint align_w = 4; */
switch (mt->target) {
- case GL_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP:
+ if (intel->gen == 5) {
+ GLuint align_h = 2, align_w = 4;
+ GLuint level;
+ GLuint x = 0;
+ GLuint y = 0;
+ GLuint width = mt->width0;
+ GLuint height = mt->height0;
+ GLuint qpitch = 0;
+ GLuint y_pitch = 0;
+
+ mt->total_width = mt->width0;
+ intel_get_texture_alignment_unit(mt->internal_format, &align_w, &align_h);
+ y_pitch = ALIGN(height, align_h);
+
+ if (mt->compressed) {
+ mt->total_width = ALIGN(mt->width0, align_w);
+ }
+
+ if (mt->first_level != mt->last_level) {
+ GLuint mip1_width;
+
+ if (mt->compressed) {
+ mip1_width = ALIGN(minify(mt->width0), align_w)
+ + ALIGN(minify(minify(mt->width0)), align_w);
+ } else {
+ mip1_width = ALIGN(minify(mt->width0), align_w)
+ + minify(minify(mt->width0));
+ }
+
+ if (mip1_width > mt->total_width) {
+ mt->total_width = mip1_width;
+ }
+ }
+
+ if (mt->compressed) {
+ qpitch = (y_pitch + ALIGN(minify(y_pitch), align_h) + 11 * align_h) / 4;
+ mt->total_height = (y_pitch + ALIGN(minify(y_pitch), align_h) + 11 * align_h) / 4 * 6;
+ } else {
+ qpitch = (y_pitch + ALIGN(minify(y_pitch), align_h) + 11 * align_h);
+ mt->total_height = (y_pitch + ALIGN(minify(y_pitch), align_h) + 11 * align_h) * 6;
+ }
+
+ for (level = mt->first_level; level <= mt->last_level; level++) {
+ GLuint img_height;
+ GLuint nr_images = 6;
+ GLuint q = 0;
+
+ intel_miptree_set_level_info(mt, level, nr_images, x, y, width,
+ height, 1);
+
+ for (q = 0; q < nr_images; q++)
+ intel_miptree_set_image_offset(mt, level, q,
+ x, y + q * qpitch);
+
+ if (mt->compressed)
+ img_height = MAX2(1, height/4);
+ else
+ img_height = ALIGN(height, align_h);
+
+ if (level == mt->first_level + 1) {
+ x += ALIGN(width, align_w);
+ }
+ else {
+ y += img_height;
+ }
+
+ width = minify(width);
+ height = minify(height);
+ }
+
+ break;
+ }
+
case GL_TEXTURE_3D: {
GLuint width = mt->width0;
GLuint height = mt->height0;
GLuint align_w = 4;
mt->total_height = 0;
-
+ intel_get_texture_alignment_unit(mt->internal_format, &align_w, &align_h);
+
if (mt->compressed) {
- align_w = intel_compressed_alignment(mt->internal_format);
- mt->pitch = ALIGN(width, align_w);
+ mt->total_width = ALIGN(width, align_w);
pack_y_pitch = (height + 3) / 4;
} else {
- mt->pitch = intel_miptree_pitch_align (intel, mt, mt->width0);
- pack_y_pitch = ALIGN(mt->height0, align_h);
+ mt->total_width = mt->width0;
+ pack_y_pitch = ALIGN(mt->height0, align_h);
}
- pack_x_pitch = mt->pitch;
+ pack_x_pitch = width;
pack_x_nr = 1;
- for ( level = mt->first_level ; level <= mt->last_level ; level++ ) {
+ for (level = mt->first_level ; level <= mt->last_level ; level++) {
GLuint nr_images = mt->target == GL_TEXTURE_3D ? depth : 6;
GLint x = 0;
GLint y = 0;
GLint q, j;
-
+
intel_miptree_set_level_info(mt, level, nr_images,
0, mt->total_height,
width, height, depth);
}
x = 0;
- y += pack_y_pitch;
+ y += pack_y_pitch;
}
height = minify(height);
depth = minify(depth);
- if (mt->compressed) {
- pack_y_pitch = (height + 3) / 4;
-
- if (pack_x_pitch > ALIGN(width, align_w)) {
- pack_x_pitch = ALIGN(width, align_w);
- pack_x_nr <<= 1;
- }
- } else {
- if (pack_x_pitch > 4) {
- pack_x_pitch >>= 1;
- pack_x_nr <<= 1;
- assert(pack_x_pitch * pack_x_nr <= mt->pitch);
- }
-
- if (pack_y_pitch > 2) {
- pack_y_pitch >>= 1;
- pack_y_pitch = ALIGN(pack_y_pitch, align_h);
- }
- }
+ if (mt->compressed) {
+ pack_y_pitch = (height + 3) / 4;
+
+ if (pack_x_pitch > ALIGN(width, align_w)) {
+ pack_x_pitch = ALIGN(width, align_w);
+ pack_x_nr <<= 1;
+ }
+ } else {
+ if (pack_x_pitch > 4) {
+ pack_x_pitch >>= 1;
+ pack_x_nr <<= 1;
+ assert(pack_x_pitch * pack_x_nr <= mt->total_width);
+ }
+
+ if (pack_y_pitch > 2) {
+ pack_y_pitch >>= 1;
+ pack_y_pitch = ALIGN(pack_y_pitch, align_h);
+ }
+ }
}
/* The 965's sampler lays cachelines out according to how accesses
}
default:
- i945_miptree_layout_2d(intel, mt);
+ i945_miptree_layout_2d(intel, mt, tiling);
break;
}
- DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
- mt->pitch,
- mt->total_height,
- mt->cpp,
- mt->pitch * mt->total_height * mt->cpp );
-
+ DBG("%s: %dx%dx%d\n", __FUNCTION__,
+ mt->total_width, mt->total_height, mt->cpp);
+
return GL_TRUE;
}
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