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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/auxiliary/util/u_mm.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/auxiliary/util/u_mm.c')
-rw-r--r--src/gallium/auxiliary/util/u_mm.c283
1 files changed, 283 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_mm.c b/src/gallium/auxiliary/util/u_mm.c
new file mode 100644
index 00000000000..0f51dd59777
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_mm.c
@@ -0,0 +1,283 @@
+/**************************************************************************
+ *
+ * Copyright (C) 1999 Wittawat Yamwong
+ *
+ * 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 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
+ * WITTAWAT YAMWONG, OR ANY OTHER CONTRIBUTORS 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_compiler.h"
+#include "pipe/p_debug.h"
+
+#include "util/u_memory.h"
+#include "util/u_mm.h"
+
+
+void
+mmDumpMemInfo(const struct mem_block *heap)
+{
+ debug_printf("Memory heap %p:\n", (void *)heap);
+ if (heap == 0) {
+ debug_printf(" heap == 0\n");
+ } else {
+ const struct mem_block *p;
+
+ for(p = heap->next; p != heap; p = p->next) {
+ debug_printf(" Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
+ p->free ? 'F':'.',
+ p->reserved ? 'R':'.');
+ }
+
+ debug_printf("\nFree list:\n");
+
+ for(p = heap->next_free; p != heap; p = p->next_free) {
+ debug_printf(" FREE Offset:%08x, Size:%08x, %c%c\n",p->ofs,p->size,
+ p->free ? 'F':'.',
+ p->reserved ? 'R':'.');
+ }
+
+ }
+ debug_printf("End of memory blocks\n");
+}
+
+struct mem_block *
+mmInit(int ofs, int size)
+{
+ struct mem_block *heap, *block;
+
+ if (size <= 0)
+ return NULL;
+
+ heap = CALLOC_STRUCT(mem_block);
+ if (!heap)
+ return NULL;
+
+ block = CALLOC_STRUCT(mem_block);
+ if (!block) {
+ FREE(heap);
+ return NULL;
+ }
+
+ heap->next = block;
+ heap->prev = block;
+ heap->next_free = block;
+ heap->prev_free = block;
+
+ block->heap = heap;
+ block->next = heap;
+ block->prev = heap;
+ block->next_free = heap;
+ block->prev_free = heap;
+
+ block->ofs = ofs;
+ block->size = size;
+ block->free = 1;
+
+ return heap;
+}
+
+
+static struct mem_block *
+SliceBlock(struct mem_block *p,
+ int startofs, int size,
+ int reserved, int alignment)
+{
+ struct mem_block *newblock;
+
+ /* break left [p, newblock, p->next], then p = newblock */
+ if (startofs > p->ofs) {
+ newblock = CALLOC_STRUCT(mem_block);
+ if (!newblock)
+ return NULL;
+ newblock->ofs = startofs;
+ newblock->size = p->size - (startofs - p->ofs);
+ newblock->free = 1;
+ newblock->heap = p->heap;
+
+ newblock->next = p->next;
+ newblock->prev = p;
+ p->next->prev = newblock;
+ p->next = newblock;
+
+ newblock->next_free = p->next_free;
+ newblock->prev_free = p;
+ p->next_free->prev_free = newblock;
+ p->next_free = newblock;
+
+ p->size -= newblock->size;
+ p = newblock;
+ }
+
+ /* break right, also [p, newblock, p->next] */
+ if (size < p->size) {
+ newblock = CALLOC_STRUCT(mem_block);
+ if (!newblock)
+ return NULL;
+ newblock->ofs = startofs + size;
+ newblock->size = p->size - size;
+ newblock->free = 1;
+ newblock->heap = p->heap;
+
+ newblock->next = p->next;
+ newblock->prev = p;
+ p->next->prev = newblock;
+ p->next = newblock;
+
+ newblock->next_free = p->next_free;
+ newblock->prev_free = p;
+ p->next_free->prev_free = newblock;
+ p->next_free = newblock;
+
+ p->size = size;
+ }
+
+ /* p = middle block */
+ p->free = 0;
+
+ /* Remove p from the free list:
+ */
+ p->next_free->prev_free = p->prev_free;
+ p->prev_free->next_free = p->next_free;
+
+ p->next_free = 0;
+ p->prev_free = 0;
+
+ p->reserved = reserved;
+ return p;
+}
+
+
+struct mem_block *
+mmAllocMem(struct mem_block *heap, int size, int align2, int startSearch)
+{
+ struct mem_block *p;
+ const int mask = (1 << align2)-1;
+ int startofs = 0;
+ int endofs;
+
+ if (!heap || align2 < 0 || size <= 0)
+ return NULL;
+
+ for (p = heap->next_free; p != heap; p = p->next_free) {
+ assert(p->free);
+
+ startofs = (p->ofs + mask) & ~mask;
+ if ( startofs < startSearch ) {
+ startofs = startSearch;
+ }
+ endofs = startofs+size;
+ if (endofs <= (p->ofs+p->size))
+ break;
+ }
+
+ if (p == heap)
+ return NULL;
+
+ assert(p->free);
+ p = SliceBlock(p,startofs,size,0,mask+1);
+
+ return p;
+}
+
+
+struct mem_block *
+mmFindBlock(struct mem_block *heap, int start)
+{
+ struct mem_block *p;
+
+ for (p = heap->next; p != heap; p = p->next) {
+ if (p->ofs == start)
+ return p;
+ }
+
+ return NULL;
+}
+
+
+static INLINE int
+Join2Blocks(struct mem_block *p)
+{
+ /* XXX there should be some assertions here */
+
+ /* NOTE: heap->free == 0 */
+
+ if (p->free && p->next->free) {
+ struct mem_block *q = p->next;
+
+ assert(p->ofs + p->size == q->ofs);
+ p->size += q->size;
+
+ p->next = q->next;
+ q->next->prev = p;
+
+ q->next_free->prev_free = q->prev_free;
+ q->prev_free->next_free = q->next_free;
+
+ FREE(q);
+ return 1;
+ }
+ return 0;
+}
+
+int
+mmFreeMem(struct mem_block *b)
+{
+ if (!b)
+ return 0;
+
+ if (b->free) {
+ debug_printf("block already free\n");
+ return -1;
+ }
+ if (b->reserved) {
+ debug_printf("block is reserved\n");
+ return -1;
+ }
+
+ b->free = 1;
+ b->next_free = b->heap->next_free;
+ b->prev_free = b->heap;
+ b->next_free->prev_free = b;
+ b->prev_free->next_free = b;
+
+ Join2Blocks(b);
+ if (b->prev != b->heap)
+ Join2Blocks(b->prev);
+
+ return 0;
+}
+
+
+void
+mmDestroy(struct mem_block *heap)
+{
+ struct mem_block *p;
+
+ if (!heap)
+ return;
+
+ for (p = heap->next; p != heap; ) {
+ struct mem_block *next = p->next;
+ FREE(p);
+ p = next;
+ }
+
+ FREE(heap);
+}