diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel_winsys/intel_tex_layout.c')
-rw-r--r-- | src/mesa/drivers/dri/intel_winsys/intel_tex_layout.c | 476 |
1 files changed, 0 insertions, 476 deletions
diff --git a/src/mesa/drivers/dri/intel_winsys/intel_tex_layout.c b/src/mesa/drivers/dri/intel_winsys/intel_tex_layout.c deleted file mode 100644 index 882d9e04a2..0000000000 --- a/src/mesa/drivers/dri/intel_winsys/intel_tex_layout.c +++ /dev/null @@ -1,476 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, - * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE - * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - /* - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - * Michel Dänzer <michel@tungstengraphics.com> - */ - -#include "macros.h" -#include "pipe/p_state.h" -#include "pipe/p_context.h" -#include "intel_tex_layout.h" -#include "state_tracker/st_mipmap_tree.h" - - -static GLuint minify( GLuint d ) -{ - return MAX2(1, d>>1); -} - -static int align(int value, int alignment) -{ - return (value + alignment - 1) & ~(alignment - 1); -} - - -static void -intel_miptree_set_level_info(struct pipe_mipmap_tree *mt, - GLuint level, - GLuint nr_images, - GLuint x, GLuint y, GLuint w, GLuint h, GLuint d) -{ - assert(level < MAX_TEXTURE_LEVELS); - - mt->level[level].width = w; - mt->level[level].height = h; - mt->level[level].depth = d; - mt->level[level].level_offset = (x + y * mt->pitch) * mt->cpp; - mt->level[level].nr_images = nr_images; - - /* - DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__, - level, w, h, d, x, y, mt->level[level].level_offset); - */ - - /* Not sure when this would happen, but anyway: - */ - if (mt->level[level].image_offset) { - free(mt->level[level].image_offset); - mt->level[level].image_offset = NULL; - } - - assert(nr_images); - assert(!mt->level[level].image_offset); - - mt->level[level].image_offset = (GLuint *) malloc(nr_images * sizeof(GLuint)); - mt->level[level].image_offset[0] = 0; -} - - -static void -intel_miptree_set_image_offset(struct pipe_mipmap_tree *mt, - GLuint level, GLuint img, GLuint x, GLuint y) -{ - if (img == 0 && level == 0) - assert(x == 0 && y == 0); - - assert(img < mt->level[level].nr_images); - - mt->level[level].image_offset[img] = (x + y * mt->pitch); - - /* - DBG("%s level %d img %d pos %d,%d image_offset %x\n", - __FUNCTION__, level, img, x, y, mt->level[level].image_offset[img]); - */ -} - - -static void -i945_miptree_layout_2d( struct pipe_mipmap_tree *mt ) -{ - GLint align_h = 2, align_w = 4; - GLuint level; - GLuint x = 0; - GLuint y = 0; - GLuint width = mt->width0; - GLuint height = mt->height0; - - mt->pitch = mt->width0; - - /* May need to adjust pitch to accomodate the placement of - * the 2nd mipmap. This occurs when the alignment - * constraints of mipmap placement push the right edge of the - * 2nd mipmap out past the width of its parent. - */ - if (mt->first_level != mt->last_level) { - GLuint mip1_width = align(minify(mt->width0), align_w) - + minify(minify(mt->width0)); - - if (mip1_width > mt->width0) - mt->pitch = mip1_width; - } - - /* Pitch must be a whole number of dwords, even though we - * express it in texels. - */ - mt->pitch = align(mt->pitch * mt->cpp, 4) / mt->cpp; - mt->total_height = 0; - - for ( level = mt->first_level ; level <= mt->last_level ; level++ ) { - GLuint img_height; - - intel_miptree_set_level_info(mt, level, 1, x, y, width, height, 1); - - if (mt->compressed) - img_height = MAX2(1, height/4); - else - img_height = align(height, align_h); - - - /* Because the images are packed better, the final offset - * might not be the maximal one: - */ - mt->total_height = MAX2(mt->total_height, y + img_height); - - /* Layout_below: step right after second mipmap. - */ - if (level == mt->first_level + 1) { - x += align(width, align_w); - } - else { - y += img_height; - } - - width = minify(width); - height = minify(height); - } -} - - -static const GLint initial_offsets[6][2] = { - {0, 0}, - {0, 2}, - {1, 0}, - {1, 2}, - {1, 1}, - {1, 3} -}; - -static const GLint step_offsets[6][2] = { - {0, 2}, - {0, 2}, - {-1, 2}, - {-1, 2}, - {-1, 1}, - {-1, 1} -}; - - -GLboolean -i915_miptree_layout(struct pipe_context *pipe, struct pipe_mipmap_tree * mt) -{ - GLint level; - - switch (mt->target) { - case GL_TEXTURE_CUBE_MAP:{ - const GLuint dim = mt->width0; - GLuint face; - GLuint lvlWidth = mt->width0, lvlHeight = mt->height0; - - assert(lvlWidth == lvlHeight); /* cubemap images are square */ - - /* double pitch for cube layouts */ - mt->pitch = ((dim * mt->cpp * 2 + 3) & ~3) / mt->cpp; - mt->total_height = dim * 4; - - for (level = mt->first_level; level <= mt->last_level; level++) { - intel_miptree_set_level_info(mt, level, 6, - 0, 0, - /*OLD: mt->pitch, mt->total_height,*/ - lvlWidth, lvlHeight, - 1); - lvlWidth /= 2; - lvlHeight /= 2; - } - - for (face = 0; face < 6; face++) { - GLuint x = initial_offsets[face][0] * dim; - GLuint y = initial_offsets[face][1] * dim; - GLuint d = dim; - - for (level = mt->first_level; level <= mt->last_level; level++) { - intel_miptree_set_image_offset(mt, level, face, x, y); - - if (d == 0) - _mesa_printf("cube mipmap %d/%d (%d..%d) is 0x0\n", - face, level, mt->first_level, mt->last_level); - - d >>= 1; - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; - } - } - break; - } - case GL_TEXTURE_3D:{ - GLuint width = mt->width0; - GLuint height = mt->height0; - GLuint depth = mt->depth0; - GLuint stack_height = 0; - - /* Calculate the size of a single slice. - */ - mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp; - - /* XXX: hardware expects/requires 9 levels at minimum. - */ - for (level = mt->first_level; level <= MAX2(8, mt->last_level); - level++) { - intel_miptree_set_level_info(mt, level, depth, 0, mt->total_height, - width, height, depth); - - - stack_height += MAX2(2, height); - - width = minify(width); - height = minify(height); - depth = minify(depth); - } - - /* Fixup depth image_offsets: - */ - depth = mt->depth0; - for (level = mt->first_level; level <= mt->last_level; level++) { - GLuint i; - for (i = 0; i < depth; i++) - intel_miptree_set_image_offset(mt, level, i, - 0, i * stack_height); - - depth = minify(depth); - } - - - /* Multiply slice size by texture depth for total size. It's - * remarkable how wasteful of memory the i915 texture layouts - * are. They are largely fixed in the i945. - */ - mt->total_height = stack_height * mt->depth0; - break; - } - - default:{ - GLuint width = mt->width0; - GLuint height = mt->height0; - GLuint img_height; - - mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp; - mt->total_height = 0; - - for (level = mt->first_level; level <= mt->last_level; level++) { - intel_miptree_set_level_info(mt, level, 1, - 0, mt->total_height, - width, height, 1); - - if (mt->compressed) - img_height = MAX2(1, height / 4); - else - img_height = (MAX2(2, height) + 1) & ~1; - - mt->total_height += img_height; - - width = minify(width); - height = minify(height); - } - 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); - */ - - return GL_TRUE; -} - - -GLboolean -i945_miptree_layout(struct pipe_context *pipe, struct pipe_mipmap_tree * mt) -{ - GLint level; - - switch (mt->target) { - case GL_TEXTURE_CUBE_MAP:{ - const GLuint dim = mt->width0; - GLuint face; - GLuint lvlWidth = mt->width0, lvlHeight = mt->height0; - - assert(lvlWidth == lvlHeight); /* cubemap images are square */ - - /* Depending on the size of the largest images, pitch can be - * determined either by the old-style packing of cubemap faces, - * or the final row of 4x4, 2x2 and 1x1 faces below this. - */ - if (dim > 32) - mt->pitch = ((dim * mt->cpp * 2 + 3) & ~3) / mt->cpp; - else - mt->pitch = 14 * 8; - - mt->total_height = dim * 4 + 4; - - /* Set all the levels to effectively occupy the whole rectangular region. - */ - for (level = mt->first_level; level <= mt->last_level; level++) { - intel_miptree_set_level_info(mt, level, 6, - 0, 0, - lvlWidth, lvlHeight, 1); - lvlWidth /= 2; - lvlHeight /= 2; - } - - - for (face = 0; face < 6; face++) { - GLuint x = initial_offsets[face][0] * dim; - GLuint y = initial_offsets[face][1] * dim; - GLuint d = dim; - - if (dim == 4 && face >= 4) { - y = mt->total_height - 4; - x = (face - 4) * 8; - } - else if (dim < 4 && (face > 0 || mt->first_level > 0)) { - y = mt->total_height - 4; - x = face * 8; - } - - for (level = mt->first_level; level <= mt->last_level; level++) { - intel_miptree_set_image_offset(mt, level, face, x, y); - - d >>= 1; - - switch (d) { - case 4: - switch (face) { - case FACE_POS_X: - case FACE_NEG_X: - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; - break; - case FACE_POS_Y: - case FACE_NEG_Y: - y += 12; - x -= 8; - break; - case FACE_POS_Z: - case FACE_NEG_Z: - y = mt->total_height - 4; - x = (face - 4) * 8; - break; - } - - case 2: - y = mt->total_height - 4; - x = 16 + face * 8; - break; - - case 1: - x += 48; - break; - - default: - x += step_offsets[face][0] * d; - y += step_offsets[face][1] * d; - break; - } - } - } - break; - } - case GL_TEXTURE_3D:{ - GLuint width = mt->width0; - GLuint height = mt->height0; - GLuint depth = mt->depth0; - GLuint pack_x_pitch, pack_x_nr; - GLuint pack_y_pitch; - GLuint level; - - mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp; - mt->total_height = 0; - - pack_y_pitch = MAX2(mt->height0, 2); - pack_x_pitch = mt->pitch; - pack_x_nr = 1; - - 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); - - for (q = 0; q < nr_images;) { - for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) { - intel_miptree_set_image_offset(mt, level, q, x, y); - x += pack_x_pitch; - } - - x = 0; - y += pack_y_pitch; - } - - - mt->total_height += y; - - 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; - } - - width = minify(width); - height = minify(height); - depth = minify(depth); - } - break; - } - - case GL_TEXTURE_1D: - case GL_TEXTURE_2D: - case GL_TEXTURE_RECTANGLE_ARB: - i945_miptree_layout_2d(mt); - break; - default: - _mesa_problem(NULL, "Unexpected tex target in i945_miptree_layout()"); - } - - /* - DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__, - mt->pitch, - mt->total_height, mt->cpp, mt->pitch * mt->total_height * mt->cpp); - */ - - return GL_TRUE; -} - |