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/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaioctl.h,v 1.5 2000/09/24 13:51:07 alanh Exp $ */
#ifndef MGA_IOCTL_H
#define MGA_IOCTL_H
#include "mgacontext.h"
#include "mga_xmesa.h"
GLbitfield mgaClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
GLint cx, GLint cy, GLint cw, GLint ch );
void mgaSwapBuffers( mgaContextPtr mmesa );
GLuint *mgaAllocVertexDwords( mgaContextPtr mmesa, int dwords );
void mgaGetILoadBufferLocked( mgaContextPtr mmesa );
void mgaFireILoadLocked( mgaContextPtr mmesa,
GLuint offset, GLuint length );
void mgaWaitAgeLocked( mgaContextPtr mmesa, int age );
void mgaWaitAge( mgaContextPtr mmesa, int age );
int mgaUpdateLock( mgaContextPtr mmesa, drmLockFlags flags );
void mgaFlushVertices( mgaContextPtr mmesa );
void mgaFlushVerticesLocked( mgaContextPtr mmesa );
void mgaFireEltsLocked( mgaContextPtr mmesa,
GLuint start,
GLuint end,
GLuint discard );
void mgaGetEltBufLocked( mgaContextPtr mmesa );
void mgaReleaseBufLocked( mgaContextPtr mmesa, drmBufPtr buffer );
void mgaFlushEltsLocked( mgaContextPtr mmesa );
void mgaFlushElts( mgaContextPtr mmesa ) ;
/* upload texture
*/
void mgaDDFlush( GLcontext *ctx );
void mgaDDFinish( GLcontext *ctx );
void mgaDDInitIoctlFuncs( GLcontext *ctx );
#define FLUSH_BATCH(mmesa) do { \
if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL) \
fprintf(stderr, "FLUSH_BATCH in %s\n", __FUNCTION__); \
if (mmesa->vertex_dma_buffer) mgaFlushVertices(mmesa); \
else if (mmesa->next_elt != mmesa->first_elt) mgaFlushElts(mmesa); \
} while (0)
extern drmBufPtr mga_get_buffer_ioctl( mgaContextPtr mmesa );
static __inline
GLuint *mgaAllocVertexDwordsInline( mgaContextPtr mmesa, int dwords )
{
int bytes = dwords * 4;
GLuint *head;
if (!mmesa->vertex_dma_buffer) {
LOCK_HARDWARE( mmesa );
if (mmesa->first_elt != mmesa->next_elt)
mgaFlushEltsLocked(mmesa);
mmesa->vertex_dma_buffer = mga_get_buffer_ioctl( mmesa );
UNLOCK_HARDWARE( mmesa );
} else if (mmesa->vertex_dma_buffer->used + bytes >
mmesa->vertex_dma_buffer->total) {
LOCK_HARDWARE( mmesa );
mgaFlushVerticesLocked( mmesa );
mmesa->vertex_dma_buffer = mga_get_buffer_ioctl( mmesa );
UNLOCK_HARDWARE( mmesa );
}
head = (GLuint *)((char *)mmesa->vertex_dma_buffer->address +
mmesa->vertex_dma_buffer->used);
mmesa->vertex_dma_buffer->used += bytes;
return head;
}
#endif
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