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authorJakob Bornecrantz <jakob@vmware.com>2009-09-29 10:22:15 -0700
committerJakob Bornecrantz <jakob@vmware.com>2009-10-05 19:48:03 +0100
commitc4b821a4c64d75d944653d665bede946763ed95b (patch)
tree7944e34757eebd8a73a2a68c374d7749d661549a /src/gallium/drivers/i965simple/brw_tex_layout.c
parent1f39d59a2996e2acf6893a8dd1a0293bd8790cc2 (diff)
i965g: Drop i965simple
The driver never work with real hardware and has bitrotted for quite some time now, might as well drop it. If somebody wants to look at it just use git.
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_tex_layout.c')
-rw-r--r--src/gallium/drivers/i965simple/brw_tex_layout.c380
1 files changed, 0 insertions, 380 deletions
diff --git a/src/gallium/drivers/i965simple/brw_tex_layout.c b/src/gallium/drivers/i965simple/brw_tex_layout.c
deleted file mode 100644
index 998ffaeac4..0000000000
--- a/src/gallium/drivers/i965simple/brw_tex_layout.c
+++ /dev/null
@@ -1,380 +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.
-
- **********************************************************************/
- /*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-
-/* Code to layout images in a mipmap tree for i965.
- */
-
-#include "pipe/p_state.h"
-#include "pipe/p_context.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_inlines.h"
-#include "pipe/internal/p_winsys_screen.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "brw_context.h"
-#include "brw_tex_layout.h"
-
-
-#define FILE_DEBUG_FLAG DEBUG_TEXTURE
-
-#if 0
-unsigned intel_compressed_alignment(unsigned internalFormat)
-{
- unsigned alignment = 4;
-
- switch (internalFormat) {
- case GL_COMPRESSED_RGB_FXT1_3DFX:
- case GL_COMPRESSED_RGBA_FXT1_3DFX:
- alignment = 8;
- break;
-
- default:
- break;
- }
-
- return alignment;
-}
-#endif
-
-
-static void intel_miptree_set_image_offset(struct brw_texture *tex,
- unsigned level,
- unsigned img,
- unsigned x, unsigned y)
-{
- struct pipe_texture *pt = &tex->base;
- if (img == 0 && level == 0)
- assert(x == 0 && y == 0);
- assert(img < tex->nr_images[level]);
-
- tex->image_offset[level][img] = y * tex->stride + x * pt->block.size;
-}
-
-static void intel_miptree_set_level_info(struct brw_texture *tex,
- unsigned level,
- unsigned nr_images,
- unsigned x, unsigned y,
- unsigned w, unsigned h, unsigned d)
-{
- struct pipe_texture *pt = &tex->base;
-
- assert(level < PIPE_MAX_TEXTURE_LEVELS);
-
- pt->width[level] = w;
- pt->height[level] = h;
- pt->depth[level] = d;
-
- pt->nblocksx[level] = pf_get_nblocksx(&pt->block, w);
- pt->nblocksy[level] = pf_get_nblocksy(&pt->block, h);
-
- tex->level_offset[level] = y * tex->stride + x * tex->base.block.size;
- tex->nr_images[level] = nr_images;
-
- /*
- DBG("%s level %d size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
- level, w, h, d, x, y, tex->level_offset[level]);
- */
-
- /* Not sure when this would happen, but anyway:
- */
- if (tex->image_offset[level]) {
- FREE(tex->image_offset[level]);
- tex->image_offset[level] = NULL;
- }
-
- assert(nr_images);
- assert(!tex->image_offset[level]);
-
- tex->image_offset[level] = (unsigned *) MALLOC(nr_images * sizeof(unsigned));
- tex->image_offset[level][0] = 0;
-}
-
-static void i945_miptree_layout_2d(struct brw_texture *tex)
-{
- struct pipe_texture *pt = &tex->base;
- const int align_x = 2, align_y = 4;
- unsigned level;
- unsigned x = 0;
- unsigned y = 0;
- unsigned width = pt->width[0];
- unsigned height = pt->height[0];
- unsigned nblocksx = pt->nblocksx[0];
- unsigned nblocksy = pt->nblocksy[0];
-
- tex->stride = align(pt->nblocksx[0] * pt->block.size, 4);
-
- /* May need to adjust pitch to accomodate the placement of
- * the 2nd mipmap level. This occurs when the alignment
- * constraints of mipmap placement push the right edge of the
- * 2nd mipmap level out past the width of its parent.
- */
- if (pt->last_level > 0) {
- unsigned mip1_nblocksx
- = align(pf_get_nblocksx(&pt->block, minify(width)), align_x)
- + pf_get_nblocksx(&pt->block, minify(minify(width)));
-
- if (mip1_nblocksx > nblocksx)
- tex->stride = mip1_nblocksx * pt->block.size;
- }
-
- /* Pitch must be a whole number of dwords
- */
- tex->stride = align(tex->stride, 64);
- tex->total_nblocksy = 0;
-
- for (level = 0; level <= pt->last_level; level++) {
- intel_miptree_set_level_info(tex, level, 1, x, y, width,
- height, 1);
-
- nblocksy = align(nblocksy, align_y);
-
- /* Because the images are packed better, the final offset
- * might not be the maximal one:
- */
- tex->total_nblocksy = MAX2(tex->total_nblocksy, y + nblocksy);
-
- /* Layout_below: step right after second mipmap level.
- */
- if (level == 1) {
- x += align(nblocksx, align_x);
- }
- else {
- y += nblocksy;
- }
-
- width = minify(width);
- height = minify(height);
- nblocksx = pf_get_nblocksx(&pt->block, width);
- nblocksy = pf_get_nblocksy(&pt->block, height);
- }
-}
-
-static boolean brw_miptree_layout(struct brw_texture *tex)
-{
- struct pipe_texture *pt = &tex->base;
- /* XXX: these vary depending on image format:
- */
-/* int align_w = 4; */
-
- switch (pt->target) {
- case PIPE_TEXTURE_CUBE:
- case PIPE_TEXTURE_3D: {
- unsigned width = pt->width[0];
- unsigned height = pt->height[0];
- unsigned depth = pt->depth[0];
- unsigned nblocksx = pt->nblocksx[0];
- unsigned nblocksy = pt->nblocksy[0];
- unsigned pack_x_pitch, pack_x_nr;
- unsigned pack_y_pitch;
- unsigned level;
- unsigned align_h = 2;
- unsigned align_w = 4;
-
- tex->total_nblocksy = 0;
-
- tex->stride = align(pt->nblocksx[0], 4);
- pack_y_pitch = align(pt->nblocksy[0], align_h);
-
- pack_x_pitch = tex->stride / pt->block.size;
- pack_x_nr = 1;
-
- for (level = 0; level <= pt->last_level; level++) {
- unsigned nr_images = pt->target == PIPE_TEXTURE_3D ? depth : 6;
- int x = 0;
- int y = 0;
- uint q, j;
-
- intel_miptree_set_level_info(tex, level, nr_images,
- 0, tex->total_nblocksy,
- 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(tex, level, q, x, y);
- x += pack_x_pitch;
- }
-
- x = 0;
- y += pack_y_pitch;
- }
-
-
- tex->total_nblocksy += y;
- width = minify(width);
- height = minify(height);
- depth = minify(depth);
- nblocksx = pf_get_nblocksx(&pt->block, width);
- nblocksy = pf_get_nblocksy(&pt->block, height);
-
- if (pf_is_compressed(pt->format)) {
- 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 * pt->block.size <= tex->stride);
- }
-
- if (pack_y_pitch > 2) {
- pack_y_pitch >>= 1;
- pack_y_pitch = align(pack_y_pitch, align_h);
- }
- }
-
- }
- break;
- }
-
- default:
- i945_miptree_layout_2d(tex);
- break;
- }
-#if 0
- PRINT("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
- pt->pitch,
- pt->total_nblocksy,
- pt->block.size,
- pt->stride * pt->total_nblocksy );
-#endif
-
- return TRUE;
-}
-
-
-static struct pipe_texture *
-brw_texture_create_screen(struct pipe_screen *screen,
- const struct pipe_texture *templat)
-{
- struct brw_texture *tex = CALLOC_STRUCT(brw_texture);
-
- if (tex) {
- tex->base = *templat;
- pipe_reference_init(&tex->base.reference, 1);
-
- tex->base.nblocksx[0] = pf_get_nblocksx(&tex->base.block, tex->base.width[0]);
- tex->base.nblocksy[0] = pf_get_nblocksy(&tex->base.block, tex->base.height[0]);
-
- if (brw_miptree_layout(tex))
- tex->buffer = screen->buffer_create(screen, 64,
- PIPE_BUFFER_USAGE_PIXEL,
- tex->stride *
- tex->total_nblocksy);
-
- if (!tex->buffer) {
- FREE(tex);
- return NULL;
- }
- }
-
- return &tex->base;
-}
-
-
-static void
-brw_texture_destroy_screen(struct pipe_texture *pt)
-{
- struct brw_texture *tex = (struct brw_texture *)pt;
- uint i;
-
- /*
- DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
- */
-
- pipe_buffer_reference(&tex->buffer, NULL);
-
- for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++)
- if (tex->image_offset[i])
- free(tex->image_offset[i]);
-
- free(tex);
-}
-
-
-static struct pipe_surface *
-brw_get_tex_surface_screen(struct pipe_screen *screen,
- struct pipe_texture *pt,
- unsigned face, unsigned level, unsigned zslice)
-{
- struct brw_texture *tex = (struct brw_texture *)pt;
- struct pipe_surface *ps;
- unsigned offset; /* in bytes */
-
- offset = tex->level_offset[level];
-
- if (pt->target == PIPE_TEXTURE_CUBE) {
- offset += tex->image_offset[level][face];
- }
- else if (pt->target == PIPE_TEXTURE_3D) {
- offset += tex->image_offset[level][zslice];
- }
- else {
- assert(face == 0);
- assert(zslice == 0);
- }
-
- ps = CALLOC_STRUCT(pipe_surface);
- if (ps) {
- pipe_reference_init(&ps->reference, 1);
- pipe_texture_reference(&ps->texture, pt);
- ps->format = pt->format;
- ps->width = pt->width[level];
- ps->height = pt->height[level];
- ps->block = pt->block;
- ps->nblocksx = pt->nblocksx[level];
- ps->nblocksy = pt->nblocksy[level];
- ps->stride = tex->stride;
- ps->offset = offset;
- }
- return ps;
-}
-
-
-void
-brw_init_texture_functions(struct brw_context *brw)
-{
-// brw->pipe.texture_update = brw_texture_update;
-}
-
-
-void
-brw_init_screen_texture_funcs(struct pipe_screen *screen)
-{
- screen->texture_create = brw_texture_create_screen;
- screen->texture_destroy = brw_texture_destroy_screen;
- screen->get_tex_surface = brw_get_tex_surface_screen;
-}
-