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/*
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
* Copyright 2001-2003 S3 Graphics, Inc. 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
* VIA, S3 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.
*/
#ifndef SAVAGE_IOCTL_H
#define SAVAGE_IOCTL_H
#include "savagecontext.h"
void savageGetGeneralDmaBufferLocked( savageContextPtr mmesa );
void savageFlushVertices( savageContextPtr mmesa );
void savageFlushGeneralLocked( savageContextPtr imesa );
void savageWaitAgeLocked( savageContextPtr imesa, int age );
void savageWaitAge( savageContextPtr imesa, int age );
unsigned int savageEmitEventLocked( savageContextPtr imesa, unsigned int flags );
unsigned int savageEmitEvent( savageContextPtr imesa, unsigned int flags );
void savageWaitEvent( savageContextPtr imesa, unsigned int event);
void savageFlushCmdBufLocked( savageContextPtr imesa, GLboolean discard );
void savageFlushCmdBuf( savageContextPtr imesa, GLboolean discard );
void savageDmaFinish( savageContextPtr imesa );
void savageRegetLockQuiescent( savageContextPtr imesa );
void savageDDInitIoctlFuncs( GLcontext *ctx );
void savageSwapBuffers( __DRIdrawablePrivate *dPriv );
#define WAIT_IDLE_EMPTY do { \
savageWaitEvent(imesa, \
savageEmitEvent(imesa, SAVAGE_WAIT_3D|SAVAGE_WAIT_2D)); \
} while (0)
#define FLUSH_BATCH(imesa) do { \
if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG) \
fprintf (stderr, "FLUSH_BATCH in %s\n", __FUNCTION__); \
savageFlushVertices(imesa); \
savageFlushCmdBuf(imesa, GL_FALSE); \
} while (0)
extern void savageGetDMABuffer( savageContextPtr imesa );
static __inline
void savageReleaseIndexedVerts( savageContextPtr imesa )
{
imesa->firstElt = -1;
}
static __inline
GLboolean savageHaveIndexedVerts( savageContextPtr imesa )
{
return (imesa->firstElt != -1);
}
static __inline
u_int32_t *savageAllocVtxBuf( savageContextPtr imesa, GLuint words )
{
struct savage_vtxbuf_t *buffer = imesa->vtxBuf;
u_int32_t *head;
if (buffer == &imesa->dmaVtxBuf) {
if (!buffer->total) {
LOCK_HARDWARE(imesa);
savageGetDMABuffer(imesa);
UNLOCK_HARDWARE(imesa);
} else if (buffer->used + words > buffer->total) {
if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG)
fprintf (stderr, "... flushing DMA buffer in %s\n",
__FUNCTION__);
savageReleaseIndexedVerts(imesa);
savageFlushVertices(imesa);
LOCK_HARDWARE(imesa);
savageFlushCmdBufLocked(imesa, GL_TRUE); /* discard DMA buffer */
savageGetDMABuffer(imesa);
UNLOCK_HARDWARE(imesa);
}
} else if (buffer->used + words > buffer->total) {
if (SAVAGE_DEBUG & DEBUG_VERBOSE_MSG)
fprintf (stderr, "... flushing client vertex buffer in %s\n",
__FUNCTION__);
savageReleaseIndexedVerts(imesa);
savageFlushVertices(imesa);
LOCK_HARDWARE(imesa);
savageFlushCmdBufLocked(imesa, GL_FALSE); /* free clientVtxBuf */
UNLOCK_HARDWARE(imesa);
}
head = &buffer->buf[buffer->used];
buffer->used += words;
return head;
}
static __inline
u_int32_t *savageAllocIndexedVerts( savageContextPtr imesa, GLuint n )
{
u_int32_t *ret;
savageFlushVertices(imesa);
ret = savageAllocVtxBuf(imesa, n*imesa->HwVertexSize);
imesa->firstElt = imesa->vtxBuf->flushed / imesa->HwVertexSize;
imesa->vtxBuf->flushed = imesa->vtxBuf->used;
return ret;
}
/* Flush Elts:
* - Complete the drawing command with the correct number of indices.
* - Actually allocate entries for the indices in the command buffer.
* (This allocation must succeed without wrapping the cmd buffer!)
*/
static __inline
void savageFlushElts( savageContextPtr imesa )
{
if (imesa->elts.cmd) {
GLuint qwords = (imesa->elts.n + 3) >> 2;
assert(imesa->cmdBuf.write - imesa->cmdBuf.base + qwords
<= imesa->cmdBuf.size);
imesa->cmdBuf.write += qwords;
imesa->elts.cmd->idx.count = imesa->elts.n;
imesa->elts.cmd = NULL;
}
}
/* Allocate a command buffer entry with <bytes> bytes of arguments:
* - implies savageFlushElts
*/
static __inline
drm_savage_cmd_header_t *savageAllocCmdBuf( savageContextPtr imesa, GLuint bytes )
{
drm_savage_cmd_header_t *ret;
GLuint qwords = ((bytes + 7) >> 3) + 1; /* round up */
assert (qwords < imesa->cmdBuf.size);
savageFlushElts(imesa);
if (imesa->cmdBuf.write - imesa->cmdBuf.base + qwords > imesa->cmdBuf.size)
savageFlushCmdBuf(imesa, GL_FALSE);
ret = (drm_savage_cmd_header_t *)imesa->cmdBuf.write;
imesa->cmdBuf.write += qwords;
return ret;
}
/* Allocate Elts:
* - if it doesn't fit, flush the cmd buffer first
* - allocates the drawing command on the cmd buffer if there is no
* incomplete indexed drawing command yet
* - increments the number of elts. Final allocation is done in savageFlushElts
*/
static __inline
u_int16_t *savageAllocElts( savageContextPtr imesa, GLuint n )
{
u_int16_t *ret;
GLuint qwords;
assert (savageHaveIndexedVerts(imesa));
if (imesa->elts.cmd)
qwords = (imesa->elts.n + n + 3) >> 2;
else
qwords = ((n + 3) >> 2) + 1;
if (imesa->cmdBuf.write - imesa->cmdBuf.base + qwords > imesa->cmdBuf.size)
savageFlushCmdBuf(imesa, GL_FALSE); /* implies savageFlushElts */
if (!imesa->elts.cmd) {
savageFlushVertices(imesa);
imesa->elts.cmd = savageAllocCmdBuf(imesa, 0);
imesa->elts.cmd->idx.cmd = (imesa->vtxBuf == &imesa->dmaVtxBuf) ?
SAVAGE_CMD_DMA_IDX : SAVAGE_CMD_VB_IDX;
imesa->elts.cmd->idx.prim = imesa->HwPrim;
imesa->elts.cmd->idx.skip = imesa->skip;
imesa->elts.n = 0;
}
ret = (u_int16_t *)(imesa->elts.cmd+1) + imesa->elts.n;
imesa->elts.n += n;
return ret;
}
#endif
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