From 7d8f0fc28239c8023d2d44cbd4c979aa86c31873 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 28 Apr 2010 17:17:54 -0700 Subject: i965: Fix cube map layouts on Ironlake. We were doubling up the offsets for the mipmap levels for CPU access. Instead of reimplementing i945_miptree_layout_2d with 6 cube images separated by qpitch, share that function and provide the level offsets later. Fixes piglit cubemap and fbo-cubemap. --- src/mesa/drivers/dri/i965/brw_tex_layout.c | 80 +++++++----------------------- 1 file changed, 18 insertions(+), 62 deletions(-) (limited to 'src/mesa/drivers/dri/i965/brw_tex_layout.c') diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c index 9a215ab8a4d..768ccfd79c4 100644 --- a/src/mesa/drivers/dri/i965/brw_tex_layout.c +++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c @@ -49,74 +49,30 @@ GLboolean brw_miptree_layout(struct intel_context *intel, switch (mt->target) { case GL_TEXTURE_CUBE_MAP: if (intel->gen == 5) { - GLuint align_h = 2, align_w = 4; + GLuint align_h = 2; GLuint level; - GLuint x = 0; - GLuint y = 0; - GLuint width = mt->width0; - GLuint height = mt->height0; GLuint qpitch = 0; - GLuint y_pitch = 0; + int h0, h1, q; - mt->total_width = mt->width0; - intel_get_texture_alignment_unit(mt->internal_format, &align_w, &align_h); - y_pitch = ALIGN(height, align_h); + /* On Ironlake, cube maps are finally represented as just a series + * of MIPLAYOUT_BELOW 2D textures (like 2D texture arrays), separated + * by a pitch of qpitch rows, where qpitch is defined by the equation + * given in Volume 1 of the BSpec. + */ + h0 = ALIGN(mt->height0, align_h); + h1 = ALIGN(minify(h0), align_h); + qpitch = (h0 + h1 + 11 * align_h); + if (mt->compressed) + qpitch /= 4; - 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; - } + i945_miptree_layout_2d(intel, mt, tiling, 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); + for (q = 0; q < 6; q++) { + intel_miptree_set_image_offset(mt, level, q, 0, q * qpitch); + } } + mt->total_height = qpitch * 6; break; } @@ -206,7 +162,7 @@ GLboolean brw_miptree_layout(struct intel_context *intel, } default: - i945_miptree_layout_2d(intel, mt, tiling); + i945_miptree_layout_2d(intel, mt, tiling, 1); break; } DBG("%s: %dx%dx%d\n", __FUNCTION__, -- cgit v1.2.3