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Diffstat (limited to 'src/gallium/drivers/i965/brw_screen_tex_layout.c')
-rw-r--r--src/gallium/drivers/i965/brw_screen_tex_layout.c414
1 files changed, 0 insertions, 414 deletions
diff --git a/src/gallium/drivers/i965/brw_screen_tex_layout.c b/src/gallium/drivers/i965/brw_screen_tex_layout.c
deleted file mode 100644
index 894f4bea40..0000000000
--- a/src/gallium/drivers/i965/brw_screen_tex_layout.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/*
- Copyright (C) Intel Corp. 2006. All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
- develop this 3D driver.
-
- 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, sublicense, 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 NONINFRINGEMENT.
- IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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.
-
- **********************************************************************/
-
-#include "pipe/p_format.h"
-
-#include "util/u_math.h"
-#include "util/u_memory.h"
-
-#include "brw_screen.h"
-#include "brw_debug.h"
-#include "brw_winsys.h"
-
-/* Code to layout images in a mipmap tree for i965.
- */
-
-static int
-brw_tex_pitch_align (struct brw_texture *tex,
- int pitch)
-{
- if (!tex->compressed) {
- int pitch_align;
-
- switch (tex->tiling) {
- case BRW_TILING_X:
- pitch_align = 512;
- break;
- case BRW_TILING_Y:
- pitch_align = 128;
- break;
- default:
- /* XXX: Untiled pitch alignment of 64 bytes for now to allow
- * render-to-texture to work in all cases. This should
- * probably be replaced at some point by some scheme to only
- * do this when really necessary, for example standalone
- * render target views.
- */
- pitch_align = 64;
- break;
- }
-
- pitch = align(pitch * tex->cpp, pitch_align);
- pitch /= tex->cpp;
- }
-
- return pitch;
-}
-
-
-static void
-brw_tex_alignment_unit(enum pipe_format pf,
- GLuint *w, GLuint *h)
-{
- switch (pf) {
- case PIPE_FORMAT_DXT1_RGB:
- case PIPE_FORMAT_DXT1_RGBA:
- case PIPE_FORMAT_DXT3_RGBA:
- case PIPE_FORMAT_DXT5_RGBA:
- case PIPE_FORMAT_DXT1_SRGB:
- case PIPE_FORMAT_DXT1_SRGBA:
- case PIPE_FORMAT_DXT3_SRGBA:
- case PIPE_FORMAT_DXT5_SRGBA:
- *w = 4;
- *h = 4;
- break;
-
- default:
- *w = 4;
- *h = 2;
- break;
- }
-}
-
-
-static void
-brw_tex_set_level_info(struct brw_texture *tex,
- GLuint level,
- GLuint nr_images,
- GLuint x, GLuint y,
- GLuint w, GLuint h, GLuint d)
-{
-
- if (BRW_DEBUG & DEBUG_TEXTURE)
- debug_printf("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
- level, w, h, d, x, y, tex->level_offset[level]);
-
- assert(tex->image_offset[level] == NULL);
- assert(nr_images >= 1);
-
- tex->level_offset[level] = (x + y * tex->pitch) * tex->cpp;
- tex->nr_images[level] = nr_images;
-
- tex->image_offset[level] = MALLOC(nr_images * sizeof(GLuint));
- tex->image_offset[level][0] = 0;
-}
-
-
-static void
-brw_tex_set_image_offset(struct brw_texture *tex,
- GLuint level, GLuint img,
- GLuint x, GLuint y,
- GLuint offset)
-{
- assert((x == 0 && y == 0) || img != 0 || level != 0);
- assert(img < tex->nr_images[level]);
-
- if (BRW_DEBUG & DEBUG_TEXTURE)
- debug_printf("%s level %d img %d pos %d,%d image_offset %x\n",
- __FUNCTION__, level, img, x, y,
- tex->image_offset[level][img]);
-
- tex->image_offset[level][img] = (x + y * tex->pitch) * tex->cpp + offset;
-}
-
-
-
-static void brw_layout_2d( struct brw_texture *tex )
-{
- GLuint align_h = 2, align_w = 4;
- GLuint level;
- GLuint x = 0;
- GLuint y = 0;
- GLuint width = tex->base.width0;
- GLuint height = tex->base.height0;
-
- tex->pitch = tex->base.width0;
- brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
-
- if (tex->compressed) {
- tex->pitch = align(tex->base.width0, align_w);
- }
-
- /* 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 (tex->base.last_level > 0) {
- GLuint mip1_width;
-
- if (tex->compressed) {
- mip1_width = (align(u_minify(tex->base.width0, 1), align_w) +
- align(u_minify(tex->base.width0, 2), align_w));
- } else {
- mip1_width = (align(u_minify(tex->base.width0, 1), align_w) +
- u_minify(tex->base.width0, 2));
- }
-
- if (mip1_width > tex->pitch) {
- tex->pitch = mip1_width;
- }
- }
-
- /* Pitch must be a whole number of dwords, even though we
- * express it in texels.
- */
- tex->pitch = brw_tex_pitch_align (tex, tex->pitch);
- tex->total_height = 0;
-
- for ( level = 0 ; level <= tex->base.last_level ; level++ ) {
- GLuint img_height;
-
- brw_tex_set_level_info(tex, level, 1, x, y, width, height, 1);
-
- if (tex->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:
- */
- tex->total_height = MAX2(tex->total_height, y + img_height);
-
- /* Layout_below: step right after second mipmap.
- */
- if (level == 1) {
- x += align(width, align_w);
- }
- else {
- y += img_height;
- }
-
- width = u_minify(width, 1);
- height = u_minify(height, 1);
- }
-}
-
-
-static boolean
-brw_layout_cubemap_idgng( struct brw_texture *tex )
-{
- GLuint align_h = 2, align_w = 4;
- GLuint level;
- GLuint x = 0;
- GLuint y = 0;
- GLuint width = tex->base.width0;
- GLuint height = tex->base.height0;
- GLuint qpitch = 0;
- GLuint y_pitch = 0;
-
- tex->pitch = tex->base.width0;
- brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
- y_pitch = align(height, align_h);
-
- if (tex->compressed) {
- tex->pitch = align(tex->base.width0, align_w);
- }
-
- if (tex->base.last_level != 0) {
- GLuint mip1_width;
-
- if (tex->compressed) {
- mip1_width = (align(u_minify(tex->base.width0, 1), align_w) +
- align(u_minify(tex->base.width0, 2), align_w));
- } else {
- mip1_width = (align(u_minify(tex->base.width0, 1), align_w) +
- u_minify(tex->base.width0, 2));
- }
-
- if (mip1_width > tex->pitch) {
- tex->pitch = mip1_width;
- }
- }
-
- tex->pitch = brw_tex_pitch_align(tex, tex->pitch);
-
- if (tex->compressed) {
- qpitch = ((y_pitch +
- align(u_minify(y_pitch, 1), align_h) +
- 11 * align_h) / 4) * tex->pitch * tex->cpp;
-
- tex->total_height = ((y_pitch +
- align(u_minify(y_pitch, 1), align_h) +
- 11 * align_h) / 4) * 6;
- } else {
- qpitch = (y_pitch +
- align(u_minify(y_pitch, 1), align_h) +
- 11 * align_h) * tex->pitch * tex->cpp;
-
- tex->total_height = (y_pitch +
- align(u_minify(y_pitch, 1), align_h) +
- 11 * align_h) * 6;
- }
-
- for (level = 0; level <= tex->base.last_level; level++) {
- GLuint img_height;
- GLuint nr_images = 6;
- GLuint q = 0;
-
- brw_tex_set_level_info(tex, level, nr_images, x, y, width, height, 1);
-
- for (q = 0; q < nr_images; q++)
- brw_tex_set_image_offset(tex, level, q, x, y, q * qpitch);
-
- if (tex->compressed)
- img_height = MAX2(1, height/4);
- else
- img_height = align(height, align_h);
-
- if (level == 1) {
- x += align(width, align_w);
- }
- else {
- y += img_height;
- }
-
- width = u_minify(width, 1);
- height = u_minify(height, 1);
- }
-
- return TRUE;
-}
-
-
-static boolean
-brw_layout_3d_cube( struct brw_texture *tex )
-{
- GLuint width = tex->base.width0;
- GLuint height = tex->base.height0;
- GLuint depth = tex->base.depth0;
- GLuint pack_x_pitch, pack_x_nr;
- GLuint pack_y_pitch;
- GLuint level;
- GLuint align_h = 2;
- GLuint align_w = 4;
-
- tex->total_height = 0;
- brw_tex_alignment_unit(tex->base.format, &align_w, &align_h);
-
- if (tex->compressed) {
- tex->pitch = align(width, align_w);
- pack_y_pitch = (height + 3) / 4;
- } else {
- tex->pitch = brw_tex_pitch_align(tex, tex->base.width0);
- pack_y_pitch = align(tex->base.height0, align_h);
- }
-
- pack_x_pitch = width;
- pack_x_nr = 1;
-
- for (level = 0 ; level <= tex->base.last_level ; level++) {
- GLuint nr_images = tex->base.target == PIPE_TEXTURE_3D ? depth : 6;
- GLint x = 0;
- GLint y = 0;
- GLint q, j;
-
- brw_tex_set_level_info(tex, level, nr_images,
- 0, tex->total_height,
- width, height, depth);
-
- for (q = 0; q < nr_images;) {
- for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) {
- brw_tex_set_image_offset(tex, level, q, x, y, 0);
- x += pack_x_pitch;
- }
-
- x = 0;
- y += pack_y_pitch;
- }
-
-
- tex->total_height += y;
- width = u_minify(width, 1);
- height = u_minify(height, 1);
- depth = u_minify(depth, 1);
-
- if (tex->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 <= tex->pitch);
- }
-
- 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
- * in the texture surfaces run, so they may be "vertical" through
- * memory. As a result, the docs say in Surface Padding Requirements:
- * Sampling Engine Surfaces that two extra rows of padding are required.
- */
- if (tex->base.target == PIPE_TEXTURE_CUBE)
- tex->total_height += 2;
-
- return TRUE;
-}
-
-
-
-GLboolean brw_texture_layout(struct brw_screen *brw_screen,
- struct brw_texture *tex )
-{
- switch (tex->base.target) {
- case PIPE_TEXTURE_CUBE:
- if (brw_screen->chipset.is_igdng)
- brw_layout_cubemap_idgng( tex );
- else
- brw_layout_3d_cube( tex );
- break;
-
- case PIPE_TEXTURE_3D:
- brw_layout_3d_cube( tex );
- break;
-
- default:
- brw_layout_2d( tex );
- break;
- }
-
- if (BRW_DEBUG & DEBUG_TEXTURE)
- debug_printf("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
- tex->pitch,
- tex->total_height,
- tex->cpp,
- tex->pitch * tex->total_height * tex->cpp );
-
- return GL_TRUE;
-}
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