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authorKeith Whitwell <keith@tungstengraphics.com>2008-09-11 16:05:15 +0100
committerKeith Whitwell <keith@tungstengraphics.com>2008-09-11 16:05:15 +0100
commit0397b2bb41b0f337af2949a15bcd7d0e7e8a7dc1 (patch)
tree732c93d74ed806942a13bf15575a61aa4f001253 /src/gallium/drivers/i915simple/i915_texture.c
parent80af50b35b5a4e8890e15b28940576f8a1ac1476 (diff)
parente6887a5752774c18cf527477fdd3e57e4893ff3b (diff)
Merge branch 'gallium-0.1' into gallium-0.2
A first attempt at moving gallium onto a branch directly off master... It will be interesting to see how much work this takes to get running. Have resolved the conflicts semi-arbitarily, not compiled or tested. Conflicts: .gitignore Makefile configs/config.mgw configs/darwin configs/darwin-x86ppc configs/default configs/freebsd-dri configs/linux-dri configs/linux-dri-xcb configs/linux-fbdev configs/linux-static configs/linux-x86-64-static configs/linux-x86-static doxygen/Makefile include/GL/gl.h progs/demos/Makefile progs/demos/descrip.mms progs/demos/texenv.c progs/egl/.gitignore progs/egl/Makefile progs/glsl/.gitignore progs/glsl/Makefile progs/glsl/convolutions.c progs/samples/Makefile.mgw progs/tests/.gitignore progs/trivial/.gitignore progs/trivial/point-param.c progs/trivial/tri.c progs/xdemos/.gitignore progs/xdemos/glthreads.c src/egl/drivers/demo/Makefile src/egl/drivers/dri/Makefile src/egl/main/Makefile src/glu/Makefile src/glu/sgi/Makefile src/glu/sgi/Makefile.mgw src/glut/glx/Makefile.mgw src/glut/os2/WarpWin.cpp src/glut/os2/glut_cindex.cpp src/glut/os2/glut_gamemode.cpp src/glut/os2/glut_win.cpp src/glut/os2/glut_winmisc.cpp src/glut/os2/os2_glx.cpp src/glut/os2/os2_menu.cpp src/glut/os2/os2_winproc.cpp src/glw/Makefile src/glx/x11/dri_glx.c src/glx/x11/glxext.c src/mesa/Makefile src/mesa/Makefile.mgw src/mesa/descrip.mms src/mesa/drivers/beos/Makefile src/mesa/drivers/common/descrip.mms src/mesa/drivers/common/driverfuncs.c src/mesa/drivers/directfb/Makefile src/mesa/drivers/dri/Makefile.template src/mesa/drivers/dri/common/dri_bufmgr.c src/mesa/drivers/dri/common/dri_bufmgr.h src/mesa/drivers/dri/common/dri_util.c src/mesa/drivers/dri/common/extension_helper.h src/mesa/drivers/dri/common/mmio.h src/mesa/drivers/dri/common/utils.c src/mesa/drivers/dri/common/utils.h src/mesa/drivers/dri/glcore/Makefile src/mesa/drivers/dri/i810/i810screen.c src/mesa/drivers/dri/i915/intel_ioctl.c src/mesa/drivers/dri/i915/intel_ioctl.h src/mesa/drivers/dri/i915/intel_screen.c src/mesa/drivers/dri/i915/server/i830_common.h src/mesa/drivers/dri/i915/server/i830_dri.h src/mesa/drivers/dri/i965/intel_screen.c src/mesa/drivers/dri/i965/server/i830_common.h src/mesa/drivers/dri/i965/server/i830_dri.h src/mesa/drivers/dri/mach64/mach64_screen.c src/mesa/drivers/dri/nouveau/nouveau_context.h src/mesa/drivers/dri/nouveau/nouveau_fifo.c src/mesa/drivers/dri/nouveau/nouveau_fifo.h src/mesa/drivers/dri/nouveau/nouveau_screen.c src/mesa/drivers/dri/nouveau/nouveau_screen.h src/mesa/drivers/dri/r128/r128_tex.h src/mesa/drivers/dri/savage/savageioctl.h src/mesa/drivers/fbdev/Makefile src/mesa/drivers/osmesa/Makefile src/mesa/drivers/osmesa/descrip.mms src/mesa/drivers/x11/Makefile src/mesa/drivers/x11/descrip.mms src/mesa/drivers/x11/xm_dd.c src/mesa/glapi/glapi.c src/mesa/glapi/glthread.c src/mesa/main/api_validate.c src/mesa/main/attrib.c src/mesa/main/bufferobj.c src/mesa/main/bufferobj.h src/mesa/main/buffers.c src/mesa/main/config.h src/mesa/main/context.c src/mesa/main/descrip.mms src/mesa/main/drawpix.c src/mesa/main/enums.c src/mesa/main/fbobject.c src/mesa/main/glheader.h src/mesa/main/imports.c src/mesa/main/mipmap.c src/mesa/main/mm.c src/mesa/main/mm.h src/mesa/main/mtypes.h src/mesa/main/points.c src/mesa/main/sources src/mesa/main/state.c src/mesa/main/texcompress_fxt1.c src/mesa/main/texenvprogram.c src/mesa/main/texobj.c src/mesa/main/texstate.c src/mesa/main/texstore.c src/mesa/math/descrip.mms src/mesa/shader/arbprogram.c src/mesa/shader/descrip.mms src/mesa/shader/prog_execute.c src/mesa/shader/prog_statevars.c src/mesa/shader/prog_statevars.h src/mesa/shader/prog_uniform.c src/mesa/shader/program.c src/mesa/shader/program.h src/mesa/shader/shader_api.c src/mesa/shader/slang/descrip.mms src/mesa/shader/slang/library/slang_vertex_builtin_gc.h src/mesa/sources src/mesa/swrast/descrip.mms src/mesa/swrast/s_drawpix.c src/mesa/swrast/s_fragprog.c src/mesa/swrast/s_readpix.c src/mesa/swrast/s_span.c src/mesa/swrast_setup/descrip.mms src/mesa/tnl/descrip.mms src/mesa/tnl/t_context.h src/mesa/tnl/t_vp_build.c src/mesa/tnl/tnl.h src/mesa/vbo/descrip.mms src/mesa/vbo/vbo_context.c src/mesa/vbo/vbo_exec_array.c src/mesa/x86-64/xform4.S src/mesa/x86/rtasm/x86sse.c src/mesa/x86/rtasm/x86sse.h windows/VC6/progs/glut/glut.dsp windows/VC7/mesa/gdi/gdi.vcproj windows/VC7/mesa/glu/glu.vcproj windows/VC7/mesa/mesa.sln windows/VC7/mesa/mesa/mesa.vcproj windows/VC7/mesa/osmesa/osmesa.vcproj windows/VC7/progs/glut/glut.vcproj windows/VC8/mesa/gdi/gdi.vcproj windows/VC8/mesa/glu/glu.vcproj windows/VC8/mesa/mesa.sln windows/VC8/mesa/mesa/mesa.vcproj windows/VC8/progs/glut/glut.vcproj
Diffstat (limited to 'src/gallium/drivers/i915simple/i915_texture.c')
-rw-r--r--src/gallium/drivers/i915simple/i915_texture.c774
1 files changed, 774 insertions, 0 deletions
diff --git a/src/gallium/drivers/i915simple/i915_texture.c b/src/gallium/drivers/i915simple/i915_texture.c
new file mode 100644
index 0000000000..32344da4d5
--- /dev/null
+++ b/src/gallium/drivers/i915simple/i915_texture.c
@@ -0,0 +1,774 @@
+/**************************************************************************
+ *
+ * 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 "pipe/p_state.h"
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_winsys.h"
+#include "util/u_math.h"
+#include "util/u_memory.h"
+
+#include "i915_context.h"
+#include "i915_texture.h"
+#include "i915_debug.h"
+#include "i915_screen.h"
+
+/*
+ * Helper function and arrays
+ */
+
+/**
+ * Initial offset for Cube map.
+ */
+static const int initial_offsets[6][2] = {
+ {0, 0},
+ {0, 2},
+ {1, 0},
+ {1, 2},
+ {1, 1},
+ {1, 3}
+};
+
+/**
+ * Step offsets for Cube map.
+ */
+static const int step_offsets[6][2] = {
+ {0, 2},
+ {0, 2},
+ {-1, 2},
+ {-1, 2},
+ {-1, 1},
+ {-1, 1}
+};
+
+static unsigned minify( unsigned d )
+{
+ return MAX2(1, d>>1);
+}
+
+static unsigned
+power_of_two(unsigned x)
+{
+ unsigned value = 1;
+ while (value <= x)
+ value = value << 1;
+ return value;
+}
+
+static unsigned
+round_up(unsigned n, unsigned multiple)
+{
+ return (n + multiple - 1) & ~(multiple - 1);
+}
+
+
+/*
+ * More advanced helper funcs
+ */
+
+
+static void
+i915_miptree_set_level_info(struct i915_texture *tex,
+ unsigned level,
+ unsigned nr_images,
+ 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->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
+i915_miptree_set_image_offset(struct i915_texture *tex,
+ unsigned level, unsigned img, unsigned x, unsigned y)
+{
+ 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 * tex->base.block.size;
+
+ /*
+ printf("%s level %d img %d pos %d,%d image_offset %x\n",
+ __FUNCTION__, level, img, x, y, tex->image_offset[level][img]);
+ */
+}
+
+
+/*
+ * Layout functions
+ */
+
+
+/**
+ * Special case to deal with display targets.
+ */
+static boolean
+i915_displaytarget_layout(struct i915_texture *tex)
+{
+ struct pipe_texture *pt = &tex->base;
+
+ if (pt->last_level > 0 || pt->block.size != 4)
+ return 0;
+
+ i915_miptree_set_level_info( tex, 0, 1,
+ tex->base.width[0],
+ tex->base.height[0],
+ 1 );
+ i915_miptree_set_image_offset( tex, 0, 0, 0, 0 );
+
+ if (tex->base.width[0] >= 128) {
+ tex->stride = power_of_two(tex->base.nblocksx[0] * pt->block.size);
+ tex->total_nblocksy = round_up(tex->base.nblocksy[0], 8);
+ tex->tiled = 1;
+ } else {
+ tex->stride = round_up(tex->base.nblocksx[0] * pt->block.size, 64);
+ tex->total_nblocksy = tex->base.nblocksy[0];
+ }
+
+ /*
+ printf("%s size: %d,%d,%d offset %d,%d (0x%x)\n", __FUNCTION__,
+ tex->base.width[0], tex->base.height[0], pt->block.size,
+ tex->stride, tex->total_nblocksy, tex->stride * tex->total_nblocksy);
+ */
+
+ return 1;
+}
+
+static void
+i945_miptree_layout_2d( struct i915_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];
+
+#if 0 /* used for tiled display targets */
+ if (pt->last_level == 0 && pt->cpp == 4)
+ if (i915_displaytarget_layout(tex))
+ return;
+#endif
+
+ tex->stride = round_up(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++) {
+ i915_miptree_set_level_info(tex, level, 1, width, height, 1);
+ i915_miptree_set_image_offset(tex, level, 0, x, y);
+
+ 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 void
+i945_miptree_layout_cube(struct i915_texture *tex)
+{
+ struct pipe_texture *pt = &tex->base;
+ unsigned level;
+
+ const unsigned nblocks = pt->nblocksx[0];
+ unsigned face;
+ unsigned width = pt->width[0];
+ unsigned height = pt->height[0];
+
+ /*
+ printf("%s %i, %i\n", __FUNCTION__, pt->width[0], pt->height[0]);
+ */
+
+ assert(width == height); /* cubemap images are square */
+
+ /*
+ * XXX Should only be used for compressed formats. But lets
+ * keep this code active just in case.
+ *
+ * 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 (nblocks > 32)
+ tex->stride = round_up(nblocks * pt->block.size * 2, 4);
+ else
+ tex->stride = 14 * 8 * pt->block.size;
+
+ tex->total_nblocksy = nblocks * 4;
+
+ /* Set all the levels to effectively occupy the whole rectangular region.
+ */
+ for (level = 0; level <= pt->last_level; level++) {
+ i915_miptree_set_level_info(tex, level, 6, width, height, 1);
+ width /= 2;
+ height /= 2;
+ }
+
+ for (face = 0; face < 6; face++) {
+ unsigned x = initial_offsets[face][0] * nblocks;
+ unsigned y = initial_offsets[face][1] * nblocks;
+ unsigned d = nblocks;
+
+#if 0 /* Fix and enable this code for compressed formats */
+ if (nblocks == 4 && face >= 4) {
+ y = tex->total_height - 4;
+ x = (face - 4) * 8;
+ }
+ else if (nblocks < 4 && (face > 0)) {
+ y = tex->total_height - 4;
+ x = face * 8;
+ }
+#endif
+
+ for (level = 0; level <= pt->last_level; level++) {
+ i915_miptree_set_image_offset(tex, level, face, x, y);
+
+ d >>= 1;
+
+#if 0 /* Fix and enable this code for compressed formats */
+ switch (d) {
+ case 4:
+ switch (face) {
+ case PIPE_TEX_FACE_POS_X:
+ case PIPE_TEX_FACE_NEG_X:
+ x += step_offsets[face][0] * d;
+ y += step_offsets[face][1] * d;
+ break;
+ case PIPE_TEX_FACE_POS_Y:
+ case PIPE_TEX_FACE_NEG_Y:
+ y += 12;
+ x -= 8;
+ break;
+ case PIPE_TEX_FACE_POS_Z:
+ case PIPE_TEX_FACE_NEG_Z:
+ y = tex->total_height - 4;
+ x = (face - 4) * 8;
+ break;
+ }
+ case 2:
+ y = tex->total_height - 4;
+ x = 16 + face * 8;
+ break;
+
+ case 1:
+ x += 48;
+ break;
+ default:
+#endif
+ x += step_offsets[face][0] * d;
+ y += step_offsets[face][1] * d;
+#if 0
+ break;
+ }
+#endif
+ }
+ }
+}
+
+static boolean
+i915_miptree_layout(struct i915_texture * tex)
+{
+ struct pipe_texture *pt = &tex->base;
+ unsigned level;
+
+ switch (pt->target) {
+ case PIPE_TEXTURE_CUBE: {
+ const unsigned nblocks = pt->nblocksx[0];
+ unsigned face;
+ unsigned width = pt->width[0], height = pt->height[0];
+
+ assert(width == height); /* cubemap images are square */
+
+ /* double pitch for cube layouts */
+ tex->stride = round_up(nblocks * pt->block.size * 2, 4);
+ tex->total_nblocksy = nblocks * 4;
+
+ for (level = 0; level <= pt->last_level; level++) {
+ i915_miptree_set_level_info(tex, level, 6,
+ width, height,
+ 1);
+ width /= 2;
+ height /= 2;
+ }
+
+ for (face = 0; face < 6; face++) {
+ unsigned x = initial_offsets[face][0] * nblocks;
+ unsigned y = initial_offsets[face][1] * nblocks;
+ unsigned d = nblocks;
+
+ for (level = 0; level <= pt->last_level; level++) {
+ i915_miptree_set_image_offset(tex, level, face, x, y);
+ d >>= 1;
+ x += step_offsets[face][0] * d;
+ y += step_offsets[face][1] * d;
+ }
+ }
+ break;
+ }
+ 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 stack_nblocksy = 0;
+
+ /* Calculate the size of a single slice.
+ */
+ tex->stride = round_up(pt->nblocksx[0] * pt->block.size, 4);
+
+ /* XXX: hardware expects/requires 9 levels at minimum.
+ */
+ for (level = 0; level <= MAX2(8, pt->last_level);
+ level++) {
+ i915_miptree_set_level_info(tex, level, depth,
+ width, height, depth);
+
+
+ stack_nblocksy += MAX2(2, nblocksy);
+
+ width = minify(width);
+ height = minify(height);
+ depth = minify(depth);
+ nblocksx = pf_get_nblocksx(&pt->block, width);
+ nblocksy = pf_get_nblocksy(&pt->block, height);
+ }
+
+ /* Fixup depth image_offsets:
+ */
+ depth = pt->depth[0];
+ for (level = 0; level <= pt->last_level; level++) {
+ unsigned i;
+ for (i = 0; i < depth; i++)
+ i915_miptree_set_image_offset(tex, level, i,
+ 0, i * stack_nblocksy);
+
+ 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.
+ */
+ tex->total_nblocksy = stack_nblocksy * pt->depth[0];
+ break;
+ }
+
+ default:{
+ unsigned width = pt->width[0];
+ unsigned height = pt->height[0];
+ unsigned nblocksx = pt->nblocksx[0];
+ unsigned nblocksy = pt->nblocksy[0];
+
+ tex->stride = round_up(pt->nblocksx[0] * pt->block.size, 4);
+ tex->total_nblocksy = 0;
+
+ for (level = 0; level <= pt->last_level; level++) {
+ i915_miptree_set_level_info(tex, level, 1,
+ width, height, 1);
+ i915_miptree_set_image_offset(tex, level, 0,
+ 0, tex->total_nblocksy);
+
+ nblocksy = round_up(MAX2(2, nblocksy), 2);
+
+ tex->total_nblocksy += nblocksy;
+
+ width = minify(width);
+ height = minify(height);
+ nblocksx = pf_get_nblocksx(&pt->block, width);
+ nblocksy = pf_get_nblocksy(&pt->block, height);
+ }
+ break;
+ }
+ }
+ /*
+ DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
+ tex->pitch,
+ tex->total_nblocksy, pt->block.size, tex->stride * tex->total_nblocksy);
+ */
+
+ return TRUE;
+}
+
+
+static boolean
+i945_miptree_layout(struct i915_texture * tex)
+{
+ struct pipe_texture *pt = &tex->base;
+ unsigned level;
+
+ switch (pt->target) {
+ case PIPE_TEXTURE_CUBE:
+ i945_miptree_layout_cube(tex);
+ break;
+ 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;
+
+ tex->stride = round_up(pt->nblocksx[0] * pt->block.size, 4);
+ tex->total_nblocksy = 0;
+
+ pack_y_pitch = MAX2(pt->nblocksy[0], 2);
+ 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;
+ unsigned q, j;
+
+ i915_miptree_set_level_info(tex, level, nr_images,
+ width, height, depth);
+
+ for (q = 0; q < nr_images;) {
+ for (j = 0; j < pack_x_nr && q < nr_images; j++, q++) {
+ i915_miptree_set_image_offset(tex, level, q, x, y + tex->total_nblocksy);
+ x += pack_x_pitch;
+ }
+
+ x = 0;
+ y += pack_y_pitch;
+ }
+
+
+ tex->total_nblocksy += y;
+
+ 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;
+ }
+
+ width = minify(width);
+ height = minify(height);
+ depth = minify(depth);
+ nblocksx = pf_get_nblocksx(&pt->block, width);
+ nblocksy = pf_get_nblocksy(&pt->block, height);
+ }
+ break;
+ }
+
+ case PIPE_TEXTURE_1D:
+ case PIPE_TEXTURE_2D:
+// case PIPE_TEXTURE_RECTANGLE:
+ i945_miptree_layout_2d(tex);
+ break;
+ default:
+ assert(0);
+ return FALSE;
+ }
+
+ /*
+ DBG("%s: %dx%dx%d - sz 0x%x\n", __FUNCTION__,
+ tex->pitch,
+ tex->total_nblocksy, pt->block.size, tex->stride * tex->total_nblocksy);
+ */
+
+ return TRUE;
+}
+
+
+static struct pipe_texture *
+i915_texture_create(struct pipe_screen *screen,
+ const struct pipe_texture *templat)
+{
+ struct i915_screen *i915screen = i915_screen(screen);
+ struct pipe_winsys *ws = screen->winsys;
+ struct i915_texture *tex = CALLOC_STRUCT(i915_texture);
+ size_t tex_size;
+
+ if (!tex)
+ return NULL;
+
+ tex->base = *templat;
+ tex->base.refcount = 1;
+ tex->base.screen = screen;
+
+ 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 (i915screen->is_i945) {
+ if (!i945_miptree_layout(tex))
+ goto fail;
+ } else {
+ if (!i915_miptree_layout(tex))
+ goto fail;
+ }
+
+ tex_size = tex->stride * tex->total_nblocksy;
+
+ tex->buffer = ws->buffer_create(ws, 64,
+ PIPE_BUFFER_USAGE_PIXEL,
+ tex_size);
+
+ if (!tex->buffer)
+ goto fail;
+
+#if 0
+ void *ptr = ws->buffer_map(ws, tex->buffer,
+ PIPE_BUFFER_USAGE_CPU_WRITE);
+ memset(ptr, 0x80, tex_size);
+ ws->buffer_unmap(ws, tex->buffer);
+#endif
+
+ return &tex->base;
+
+fail:
+ FREE(tex);
+ return NULL;
+}
+
+
+static void
+i915_texture_release(struct pipe_screen *screen,
+ struct pipe_texture **pt)
+{
+ if (!*pt)
+ return;
+
+ /*
+ DBG("%s %p refcount will be %d\n",
+ __FUNCTION__, (void *) *pt, (*pt)->refcount - 1);
+ */
+ if (--(*pt)->refcount <= 0) {
+ struct i915_texture *tex = (struct i915_texture *)*pt;
+ uint i;
+
+ /*
+ DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
+ */
+
+ pipe_buffer_reference(screen->winsys, &tex->buffer, NULL);
+
+ for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++)
+ if (tex->image_offset[i])
+ FREE(tex->image_offset[i]);
+
+ FREE(tex);
+ }
+ *pt = NULL;
+}
+
+static struct pipe_surface *
+i915_get_tex_surface(struct pipe_screen *screen,
+ struct pipe_texture *pt,
+ unsigned face, unsigned level, unsigned zslice,
+ unsigned flags)
+{
+ struct i915_texture *tex = (struct i915_texture *)pt;
+ struct pipe_winsys *ws = screen->winsys;
+ struct pipe_surface *ps;
+ unsigned offset; /* in bytes */
+
+ 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 {
+ offset = tex->image_offset[level][0];
+ assert(face == 0);
+ assert(zslice == 0);
+ }
+
+ ps = CALLOC_STRUCT(pipe_surface);
+ if (ps) {
+ ps->refcount = 1;
+ ps->winsys = ws;
+ pipe_texture_reference(&ps->texture, pt);
+ pipe_buffer_reference(ws, &ps->buffer, tex->buffer);
+ 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;
+ ps->usage = flags;
+ ps->status = PIPE_SURFACE_STATUS_DEFINED;
+ }
+ return ps;
+}
+
+static struct pipe_texture *
+i915_texture_blanket(struct pipe_screen * screen,
+ const struct pipe_texture *base,
+ const unsigned *stride,
+ struct pipe_buffer *buffer)
+{
+ struct i915_texture *tex;
+ assert(screen);
+
+ /* Only supports one type */
+ if (base->target != PIPE_TEXTURE_2D ||
+ base->last_level != 0 ||
+ base->depth[0] != 1) {
+ return NULL;
+ }
+
+ tex = CALLOC_STRUCT(i915_texture);
+ if (!tex)
+ return NULL;
+
+ tex->base = *base;
+ tex->base.refcount = 1;
+ tex->base.screen = screen;
+
+ tex->stride = stride[0];
+
+ i915_miptree_set_level_info(tex, 0, 1, base->width[0], base->height[0], 1);
+ i915_miptree_set_image_offset(tex, 0, 0, 0, 0);
+
+ pipe_buffer_reference(screen->winsys, &tex->buffer, buffer);
+
+ return &tex->base;
+}
+
+void
+i915_init_texture_functions(struct i915_context *i915)
+{
+// i915->pipe.texture_update = i915_texture_update;
+}
+
+static void
+i915_tex_surface_release(struct pipe_screen *screen,
+ struct pipe_surface **surface)
+{
+ struct pipe_surface *surf = *surface;
+
+ if (--surf->refcount == 0) {
+
+ /* This really should not be possible, but it's actually
+ * happening quite a bit... Will fix.
+ */
+ if (surf->status == PIPE_SURFACE_STATUS_CLEAR) {
+ debug_printf("XXX destroying a surface with pending clears...\n");
+ assert(0);
+ }
+
+ pipe_texture_reference(&surf->texture, NULL);
+ pipe_buffer_reference(screen->winsys, &surf->buffer, NULL);
+ FREE(surf);
+ }
+
+ *surface = NULL;
+}
+
+void
+i915_init_screen_texture_functions(struct pipe_screen *screen)
+{
+ screen->texture_create = i915_texture_create;
+ screen->texture_release = i915_texture_release;
+ screen->get_tex_surface = i915_get_tex_surface;
+ screen->texture_blanket = i915_texture_blanket;
+ screen->tex_surface_release = i915_tex_surface_release;
+}