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Diffstat (limited to 'src/mesa/drivers/dri/sis/sis_alloc.c')
-rw-r--r--src/mesa/drivers/dri/sis/sis_alloc.c256
1 files changed, 256 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/sis/sis_alloc.c b/src/mesa/drivers/dri/sis/sis_alloc.c
new file mode 100644
index 0000000000..aa71f269d1
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_alloc.c
@@ -0,0 +1,256 @@
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+Copyright 2003 Eric Anholt
+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
+on 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
+ATI, PRECISION INSIGHT AND/OR THEIR 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.
+
+**************************************************************************/
+/* $XFree86: xc/lib/GL/mesa/src/drv/sis/sis_alloc.c,v 1.7 2001/01/08 01:07:29 martin Exp $ */
+
+/*
+ * Authors:
+ * Sung-Ching Lin <sclin@sis.com.tw>
+ * Eric Anholt <anholt@FreeBSD.org>
+ */
+
+#include <assert.h>
+
+#include "sis_context.h"
+#include "sis_alloc.h"
+
+#include "sis_common.h"
+
+#define Z_BUFFER_HW_ALIGNMENT 16
+#define Z_BUFFER_HW_PLUS (16 + 4)
+
+/* 3D engine uses 2, and bitblt uses 4 */
+#define DRAW_BUFFER_HW_ALIGNMENT 16
+#define DRAW_BUFFER_HW_PLUS (16 + 4)
+
+#ifdef ROUNDUP
+#undef ROUNDUP
+#endif
+#define ROUNDUP(nbytes, pad) (((nbytes)+(pad-1))/(pad))
+
+#ifdef ALIGNMENT
+#undef ALIGNMENT
+#endif
+#define ALIGNMENT(value, align) (ROUNDUP((value),(align))*(align))
+
+static int _total_video_memory_used = 0;
+static int _total_video_memory_count = 0;
+
+void *
+sisAllocFB( sisContextPtr smesa, GLuint size, void **handle )
+{
+ drm_sis_mem_t fb;
+
+ _total_video_memory_used += size;
+
+ fb.context = smesa->hHWContext;
+ fb.size = size;
+ if (drmCommandWriteRead( smesa->driFd, DRM_SIS_FB_ALLOC, &fb,
+ sizeof(drm_sis_mem_t) ) || fb.offset == 0)
+ {
+ return NULL;
+ }
+ *handle = (void *)fb.free;
+
+ if (SIS_VERBOSE & VERBOSE_SIS_MEMORY) {
+ fprintf(stderr, "sisAllocFB: size=%d, offset=%lu, pid=%d, count=%d\n",
+ size, fb.offset, (GLint)getpid(),
+ ++_total_video_memory_count);
+ }
+
+ return (void *)(smesa->FbBase + fb.offset);
+}
+
+void
+sisFreeFB( sisContextPtr smesa, void *handle )
+{
+ drm_sis_mem_t fb;
+
+ if (SIS_VERBOSE & VERBOSE_SIS_MEMORY) {
+ fprintf(stderr, "sisFreeFB: free=%p, pid=%d, count=%d\n",
+ handle, (GLint)getpid(), --_total_video_memory_count);
+ }
+
+ fb.context = smesa->hHWContext;
+ fb.free = handle;
+ drmCommandWrite( smesa->driFd, DRM_SIS_FB_FREE, &fb, sizeof(drm_sis_mem_t) );
+}
+
+void *
+sisAllocAGP( sisContextPtr smesa, GLuint size, void **handle )
+{
+ drm_sis_mem_t agp;
+
+ if (smesa->AGPSize == 0)
+ return NULL;
+
+ agp.context = smesa->hHWContext;
+ agp.size = size;
+ if (drmCommandWriteRead( smesa->driFd, DRM_SIS_AGP_ALLOC, &agp,
+ sizeof(drm_sis_mem_t) ) || agp.offset == 0)
+ {
+ return NULL;
+ }
+ *handle = (void *)agp.free;
+
+ if (SIS_VERBOSE & VERBOSE_SIS_MEMORY) {
+ fprintf(stderr, "sisAllocAGP: size=%u, offset=%lu, pid=%d, count=%d\n",
+ size, agp.offset, (GLint)getpid(),
+ ++_total_video_memory_count);
+ }
+
+ return (void *)(smesa->AGPBase + agp.offset);
+}
+
+void
+sisFreeAGP( sisContextPtr smesa, void *handle )
+{
+ drm_sis_mem_t agp;
+
+ if (SIS_VERBOSE & VERBOSE_SIS_MEMORY) {
+ fprintf(stderr, "sisFreeAGP: free=%p, pid=%d, count=%d\n",
+ handle, (GLint)getpid(), --_total_video_memory_count);
+ }
+
+ agp.context = smesa->hHWContext;
+ agp.free = handle;
+ drmCommandWrite( smesa->driFd, DRM_SIS_AGP_FREE, &agp,
+ sizeof(drm_sis_mem_t) );
+}
+
+void
+sisAllocZStencilBuffer( sisContextPtr smesa )
+{
+ GLuint z_depth;
+ GLuint totalBytes;
+ int width2;
+
+ GLubyte *addr;
+
+ z_depth = ( smesa->glCtx->Visual.depthBits +
+ smesa->glCtx->Visual.stencilBits ) / 8;
+
+ width2 = ALIGNMENT( smesa->width * z_depth, 4 );
+
+ totalBytes = smesa->height * width2 + Z_BUFFER_HW_PLUS;
+
+ addr = sisAllocFB( smesa, totalBytes, &smesa->zbFree );
+ if (addr == NULL)
+ {
+ fprintf (stderr, "SIS driver : out of video memory\n");
+ sis_fatal_error ();
+ }
+
+ if (SIS_VERBOSE & VERBOSE_SIS_BUFFER) {
+ fprintf(stderr, "sis_alloc_z_stencil_buffer: addr=%p\n", addr);
+ }
+
+ addr = (GLubyte *)ALIGNMENT( (unsigned long)addr, Z_BUFFER_HW_ALIGNMENT );
+
+ smesa->depthbuffer = (void *) addr;
+ smesa->depthPitch = width2;
+
+ /* set pZClearPacket */
+ memset( &smesa->zClearPacket, 0, sizeof(ENGPACKET) );
+
+ smesa->zClearPacket.dwSrcPitch = (z_depth == 2) ? 0x80000000 : 0xf0000000;
+ smesa->zClearPacket.dwDestBaseAddr = (GLint)(addr -
+ (unsigned long)smesa->FbBase);
+ smesa->zClearPacket.wDestPitch = width2;
+ smesa->zClearPacket.stdwDestPos.wY = 0;
+ smesa->zClearPacket.stdwDestPos.wX = 0;
+
+ smesa->zClearPacket.wDestHeight = smesa->virtualY;
+ smesa->zClearPacket.stdwDim.wWidth = (GLshort)width2 / z_depth;
+ smesa->zClearPacket.stdwDim.wHeight = (GLshort)smesa->height;
+ smesa->zClearPacket.stdwCmd.cRop = 0xf0;
+
+ if (smesa->blockWrite)
+ smesa->zClearPacket.stdwCmd.cCmd0 = CMD0_PAT_FG_COLOR;
+ else
+ smesa->zClearPacket.stdwCmd.cCmd0 = 0;
+ smesa->zClearPacket.stdwCmd.cCmd1 = CMD1_DIR_X_INC | CMD1_DIR_Y_INC;
+}
+
+void
+sisFreeZStencilBuffer( sisContextPtr smesa )
+{
+ sisFreeFB( smesa, smesa->zbFree );
+ smesa->zbFree = NULL;
+ smesa->depthbuffer = NULL;
+}
+
+void
+sisAllocBackbuffer( sisContextPtr smesa )
+{
+ GLuint depth = smesa->bytesPerPixel;
+ GLuint size, width2;
+
+ char *addr;
+
+ width2 = (depth == 2) ? ALIGNMENT (smesa->width, 2) : smesa->width;
+ size = width2 * smesa->height * depth + DRAW_BUFFER_HW_PLUS;
+
+ /* Fixme: unique context alloc/free back-buffer? */
+ addr = sisAllocFB( smesa, size, &smesa->bbFree );
+ if (addr == NULL)
+ {
+ fprintf (stderr, "SIS driver : out of video memory\n");
+ sis_fatal_error ();
+ }
+
+ addr = (char *)ALIGNMENT( (unsigned long)addr, DRAW_BUFFER_HW_ALIGNMENT );
+
+ smesa->backbuffer = addr;
+ smesa->backOffset = (GLint)(addr - (unsigned long)smesa->FbBase);
+ smesa->backPitch = width2 * depth;
+
+ memset ( &smesa->cbClearPacket, 0, sizeof(ENGPACKET) );
+
+ smesa->cbClearPacket.dwSrcPitch = (depth == 2) ? 0x80000000 : 0xf0000000;
+ smesa->cbClearPacket.dwDestBaseAddr = smesa->backOffset;
+ smesa->cbClearPacket.wDestPitch = smesa->backPitch;
+ smesa->cbClearPacket.stdwDestPos.wY = 0;
+ smesa->cbClearPacket.stdwDestPos.wX = 0;
+
+ smesa->cbClearPacket.wDestHeight = smesa->virtualY;
+ smesa->cbClearPacket.stdwDim.wWidth = (GLshort) width2;
+ smesa->cbClearPacket.stdwDim.wHeight = (GLshort) smesa->height;
+ smesa->cbClearPacket.stdwCmd.cRop = 0xf0;
+
+ if (smesa->blockWrite)
+ smesa->cbClearPacket.stdwCmd.cCmd0 = (GLbyte)(CMD0_PAT_FG_COLOR);
+ else
+ smesa->cbClearPacket.stdwCmd.cCmd0 = 0;
+ smesa->cbClearPacket.stdwCmd.cCmd1 = CMD1_DIR_X_INC | CMD1_DIR_Y_INC;
+}
+
+void
+sisFreeBackbuffer( sisContextPtr smesa )
+{
+ sisFreeFB( smesa, smesa->bbFree );
+ smesa->backbuffer = NULL;
+}
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