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Diffstat (limited to 'src/mesa/drivers/dri/i915-tex/i915_tex_layout.c')
-rw-r--r--src/mesa/drivers/dri/i915-tex/i915_tex_layout.c338
1 files changed, 0 insertions, 338 deletions
diff --git a/src/mesa/drivers/dri/i915-tex/i915_tex_layout.c b/src/mesa/drivers/dri/i915-tex/i915_tex_layout.c
deleted file mode 100644
index 3f263597b01..00000000000
--- a/src/mesa/drivers/dri/i915-tex/i915_tex_layout.c
+++ /dev/null
@@ -1,338 +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.
- *
- **************************************************************************/
-
-/* Code to layout images in a mipmap tree for i915 and i945
- * respectively.
- */
-
-#include "intel_mipmap_tree.h"
-#include "macros.h"
-
-static GLint initial_offsets[6][2] = { {0,0},
- {0,2},
- {1,0},
- {1,2},
- {1,1},
- {1,3} };
-
-
-static GLint step_offsets[6][2] = { {0,2},
- {0,2},
- {-1,2},
- {-1,2},
- {-1,1},
- {-1,1} };
-
-static GLuint minify( GLuint d )
-{
- return MAX2(1, d>>1);
-}
-
-GLboolean i915_miptree_layout( struct intel_mipmap_tree *mt )
-{
- GLint i;
-
- switch (mt->target) {
- case GL_TEXTURE_CUBE_MAP: {
- const GLuint dim = mt->width0;
- GLuint face;
-
- /* double pitch for cube layouts */
- mt->pitch = ((dim * mt->cpp * 2 + 3) & ~3) / mt->cpp;
- mt->total_height = dim * 4;
-
- for ( face = 0 ; face < 6 ; face++) {
- GLuint x = initial_offsets[face][0] * dim;
- GLuint y = initial_offsets[face][1] * dim;
- GLuint d = dim;
-
- for (i = mt->first_level; i <= mt->last_level; i++) {
- intel_miptree_set_image_offset(mt, face, i,
- x, y,
- d, d, 1);
-
- if (d == 0)
- _mesa_printf("cube mipmap %d/%d (%d..%d) is 0x0\n",
- face, i, 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;
-
- /* Calculate the size of a single slice.
- */
- mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp;
- mt->total_height = 0;
-
- /* XXX: hardware expects/requires 9 levels at minimum.
- */
- for ( i = mt->first_level ; i <= MAX2(8, mt->last_level) ; i++ ) {
- intel_miptree_set_image_offset(mt, 0, i,
- 0, mt->total_height,
- width, height, depth);
-
- mt->total_height += MAX2(2, height);
-
- width = minify(width);
- height = minify(height);
- depth = minify(depth);
- }
-
- /* Fixup depth_image_stride:
- */
- for ( i = mt->first_level ; i <= mt->last_level ; i++ ) {
- mt->offset[0][i].depth_image_stride = mt->total_height * mt->pitch * mt->cpp;
- }
-
-
- /* 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 *= mt->depth0;
- break;
- }
-
- default: {
- GLuint width = mt->width0;
- GLuint height = mt->height0;
-
- mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp;
- mt->total_height = 0;
-
- for ( i = mt->first_level ; i <= mt->last_level ; i++ ) {
- intel_miptree_set_image_offset(mt, 0, i,
- 0, mt->total_height,
- width, height, 1);
-
- if (mt->compressed)
- mt->total_height += MAX2(1, height/4);
- else
- mt->total_height += MAX2(2, 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 intel_mipmap_tree *mt )
-{
- GLint i;
-
- switch (mt->target) {
- case GL_TEXTURE_CUBE_MAP: {
- const GLuint dim = mt->width0;
- GLuint face;
-
- /* 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;
-
-
- 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) {
- y = mt->total_height - 4;
- x = face * 8;
- }
-
- for ( i = mt->first_level ; i <= mt->last_level ; i++ ) {
- intel_miptree_set_image_offset(mt, face, i,
- x, y,
- d, d, 1);
-
- 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 depth_pack_pitch;
- GLuint depth_packing = 0;
-
- mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp;
- mt->total_height = 0;
-
- depth_pack_pitch = mt->pitch * mt->cpp;
-
- for ( i = mt->first_level ; i <= mt->last_level ; i++ ) {
-
- intel_miptree_set_image_offset(mt, 0, i,
- 0, mt->total_height,
- width, height, depth);
-
-
-
- mt->total_height += MAX2(2, height) * MAX2((depth >> depth_packing), 1);
-
- /* When alignment dominates, can't increase depth packing?
- * Or does pitch grow??? What are the alignment constraints,
- * anyway?
- */
- if (depth_pack_pitch > 4) {
- depth_packing++;
- depth_pack_pitch >>= 2; /* KW: is this right?? */
- }
-
- width = minify(width);
- height = minify(height);
- depth = minify(depth);
-
- /* XXX: Not sure how 3d textures work on i945 - where did
- * t->depth_pitch get set in the old code. Did it ever work?
- * Fix up later.
- */
- }
- break;
- }
-
- case GL_TEXTURE_1D:
- case GL_TEXTURE_2D:
- case GL_TEXTURE_RECTANGLE_ARB: {
- GLuint x = 0;
- GLuint y = 0;
- GLuint width = mt->width0;
- GLuint height = mt->height0;
-
- mt->pitch = ((mt->width0 * mt->cpp + 3) & ~3) / mt->cpp;
- mt->total_height = 0;
-
- for ( i = mt->first_level ; i <= mt->last_level ; i++ ) {
- intel_miptree_set_image_offset(mt, 0, i,
- x, y,
- width, height, 1);
-
-
- /* LPT change: step right after second mipmap.
- */
- if (i == 1)
- x += mt->pitch / 2;
- else {
- GLuint img_height;
-
- if (mt->compressed)
- img_height = MAX2(1, height/4);
- else
- img_height = MAX2(2, height);
-
- y += img_height;
- }
-
- /* Because the images are packed better, the final offset
- * might not be the maximal one:
- */
- mt->total_height = MAX2(mt->total_height, y);
-
- width = minify(width);
- height = minify(height);
- }
- 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;
-}
-
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