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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_RESERVED 16
enum cliprect_mode {
/**
* Batchbuffer contents may be looped over per cliprect, but do not
* require it.
*/
IGNORE_CLIPRECTS,
/**
* Batchbuffer contents require looping over per cliprect at batch submit
* time.
*/
LOOP_CLIPRECTS,
/**
* Batchbuffer contents contain drawing that should not be executed multiple
* times.
*/
NO_LOOP_CLIPRECTS,
/**
* Batchbuffer contents contain drawing that already handles cliprects, such
* as 2D drawing to front/back/depth that doesn't respect DRAWING_RECTANGLE.
* Equivalent behavior to NO_LOOP_CLIPRECTS, but may not persist in batch
* outside of LOCK/UNLOCK.
*/
REFERENCES_CLIPRECTS
};
struct intel_batchbuffer
{
struct intel_context *intel;
dri_bo *buf;
dri_fence *last_fence;
GLubyte *map;
GLubyte *ptr;
enum cliprect_mode cliprect_mode;
GLuint size;
GLuint dirty_state;
};
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,
const char *file, int line);
#define intel_batchbuffer_flush(batch) \
_intel_batchbuffer_flush(batch, __FILE__, __LINE__)
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,
enum cliprect_mode cliprect_mode);
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,
enum cliprect_mode cliprect_mode)
{
assert(sz < batch->size - 8);
if (intel_batchbuffer_space(batch) < sz)
intel_batchbuffer_flush(batch);
if (cliprect_mode != IGNORE_CLIPRECTS) {
if (batch->cliprect_mode == IGNORE_CLIPRECTS) {
batch->cliprect_mode = cliprect_mode;
} else {
if (batch->cliprect_mode != cliprect_mode)
intel_batchbuffer_flush(batch);
}
}
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n, cliprect_mode) do { \
intel_batchbuffer_require_space(intel->batch, (n)*4, cliprect_mode); \
} while (0)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define OUT_RELOC(buf, cliprect_mode, delta) do { \
assert((delta) >= 0); \
intel_batchbuffer_emit_reloc(intel->batch, buf, cliprect_mode, delta); \
} while (0)
#define ADVANCE_BATCH() do { } while(0)
#endif
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