140 lines
4.0 KiB
C
140 lines
4.0 KiB
C
/**************************************************************************
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <string.h>
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#include <assert.h>
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#include <sys/ioctl.h>
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#include <X11/Xlibint.h>
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#include <fourcc.h>
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#include <X11/extensions/Xv.h>
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#include <X11/extensions/Xvlib.h>
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#include <X11/extensions/XvMC.h>
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#include <X11/extensions/XvMClib.h>
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#include "intel_xvmc_private.h"
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#include "intel_batchbuffer.h"
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#include "brw_defines.h"
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#include "brw_structs.h"
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#define MI_BATCH_BUFFER_END (0xA << 23)
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#define BATCH_SIZE 8*1024 /* one bo is allocated each time, so the size can be small */
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static void i965_end_batch(void)
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{
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unsigned int size = xvmc_driver->batch.ptr -
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xvmc_driver->batch.init_ptr;
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if ((size & 4) == 0) {
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*(unsigned int *)xvmc_driver->batch.ptr = 0;
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xvmc_driver->batch.ptr += 4;
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}
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*(unsigned int *)xvmc_driver->batch.ptr = MI_BATCH_BUFFER_END;
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xvmc_driver->batch.ptr += 4;
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}
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static void reset_batch(void)
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{
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dri_bo *bo = xvmc_driver->batch.buf;
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xvmc_driver->batch.ptr = xvmc_driver->batch.init_ptr = bo->virtual;
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xvmc_driver->batch.size = bo->size;
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xvmc_driver->batch.space = bo->size - 8;
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}
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Bool intelInitBatchBuffer(void)
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{
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if ((xvmc_driver->batch.buf =
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drm_intel_bo_alloc(xvmc_driver->bufmgr,
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"batch buffer", BATCH_SIZE, 0x1000)) == NULL) {
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fprintf(stderr, "unable to alloc batch buffer\n");
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return False;
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}
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if (drm_intel_gem_bo_map_gtt(xvmc_driver->batch.buf)) {
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drm_intel_bo_unreference(xvmc_driver->batch.buf);
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return False;
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}
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reset_batch();
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return True;
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}
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void intelFiniBatchBuffer(void)
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{
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if (xvmc_driver->batch.buf == NULL)
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return;
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drm_intel_bo_unreference(xvmc_driver->batch.buf);
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}
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void intelFlushBatch(void)
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{
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dri_bo *bo;
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i965_end_batch();
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drm_intel_bo_exec(xvmc_driver->batch.buf,
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xvmc_driver->batch.ptr - xvmc_driver->batch.init_ptr,
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0, 0, 0);
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bo = drm_intel_bo_alloc(xvmc_driver->bufmgr,
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"batch buffer", BATCH_SIZE, 0x1000);
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if (bo != NULL && drm_intel_gem_bo_map_gtt(bo) == 0) {
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drm_intel_bo_unreference(xvmc_driver->batch.buf);
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xvmc_driver->batch.buf = bo;
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} else {
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if (bo != NULL)
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drm_intel_bo_unreference(bo);
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drm_intel_gem_bo_map_gtt(xvmc_driver->batch.buf);
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}
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reset_batch();
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}
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void intelBatchbufferData(const void *data, unsigned bytes, unsigned flags)
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{
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assert(bytes <= xvmc_driver->batch.space);
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memcpy(xvmc_driver->batch.ptr, data, bytes);
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xvmc_driver->batch.ptr += bytes;
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xvmc_driver->batch.space -= bytes;
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}
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void intel_batch_emit_reloc(dri_bo * bo, uint32_t read_domain,
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uint32_t write_domain, uint32_t delta,
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unsigned char *ptr)
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{
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drm_intel_bo_emit_reloc(xvmc_driver->batch.buf,
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ptr - xvmc_driver->batch.init_ptr, bo, delta,
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read_domain, write_domain);
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}
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