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#ifndef INTEL_BATCHBUFFER_H
#define INTEL_BATCHBUFFER_H
#include "mtypes.h"
#include "dri_bufmgr.h"
struct intel_context;
//#define BATCH_SZ 16384
#define BATCH_SZ 4096
#define BATCH_RESERVED 16
#define INTEL_BATCH_NO_CLIPRECTS 0x1
#define INTEL_BATCH_CLIPRECTS 0x2
struct intel_batchbuffer
{
struct intel_context *intel;
dri_bo *buf;
dri_fence *last_fence;
GLuint flags;
GLubyte *map;
GLubyte *ptr;
GLuint size;
};
struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context
*intel);
void intel_batchbuffer_free(struct intel_batchbuffer *batch);
void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
void intel_batchbuffer_flush(struct intel_batchbuffer *batch);
void intel_batchbuffer_reset(struct intel_batchbuffer *batch);
/* Unlike bmBufferData, this currently requires the buffer be mapped.
* Consider it a convenience function wrapping multple
* intel_buffer_dword() calls.
*/
void intel_batchbuffer_data(struct intel_batchbuffer *batch,
const void *data, GLuint bytes, GLuint flags);
void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
GLuint bytes);
GLboolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
dri_bo *buffer,
GLuint flags, GLuint offset);
/* Inline functions - might actually be better off with these
* non-inlined. Certainly better off switching all command packets to
* be passed as structs rather than dwords, but that's a little bit of
* work...
*/
static INLINE GLuint
intel_batchbuffer_space(struct intel_batchbuffer *batch)
{
return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);
}
static INLINE void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, GLuint dword)
{
assert(batch->map);
assert(intel_batchbuffer_space(batch) >= 4);
*(GLuint *) (batch->ptr) = dword;
batch->ptr += 4;
}
static INLINE void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
GLuint sz, GLuint flags)
{
assert(sz < batch->size - 8);
if (intel_batchbuffer_space(batch) < sz ||
(batch->flags != 0 && flags != 0 && batch->flags != flags))
intel_batchbuffer_flush(batch);
batch->flags |= flags;
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n, flags) do { \
assert(!intel->prim.flush); \
intel_batchbuffer_require_space(intel->batch, (n)*4, flags); \
} while (0)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define OUT_RELOC(buf, flags, delta) do { \
assert((delta) >= 0); \
intel_batchbuffer_emit_reloc(intel->batch, buf, flags, delta); \
} while (0)
#define ADVANCE_BATCH() do { } while(0)
#endif
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