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#ifndef INTEL_BATCHBUFFER_H
#define INTEL_BATCHBUFFER_H
#include "main/mtypes.h"
#include "intel_context.h"
#include "intel_bufmgr.h"
#include "intel_reg.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Number of bytes to reserve for commands necessary to complete a batch.
*
* This includes:
* - MI_BATCHBUFFER_END (4 bytes)
* - Optional MI_NOOP for ensuring the batch length is qword aligned (4 bytes)
* - Any state emitted by vtbl->finish_batch():
* - Gen4-5 record ending occlusion query values (4 * 4 = 16 bytes)
*/
#define BATCH_RESERVED 24
struct intel_batchbuffer;
void intel_batchbuffer_init(struct intel_context *intel);
void intel_batchbuffer_free(struct intel_context *intel);
int _intel_batchbuffer_flush(struct intel_context *intel,
const char *file, int line);
#define intel_batchbuffer_flush(intel) \
_intel_batchbuffer_flush(intel, __FILE__, __LINE__)
/* 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_context *intel,
const void *data, GLuint bytes);
bool intel_batchbuffer_emit_reloc(struct intel_context *intel,
drm_intel_bo *buffer,
uint32_t read_domains,
uint32_t write_domain,
uint32_t offset);
bool intel_batchbuffer_emit_reloc_fenced(struct intel_context *intel,
drm_intel_bo *buffer,
uint32_t read_domains,
uint32_t write_domain,
uint32_t offset);
void intel_batchbuffer_emit_mi_flush(struct intel_context *intel);
static inline uint32_t float_as_int(float f)
{
union {
float f;
uint32_t d;
} fi;
fi.f = f;
return fi.d;
}
/* 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 unsigned
intel_batchbuffer_space(struct intel_context *intel)
{
return (intel->batch.bo->size - intel->batch.reserved_space)
- intel->batch.used*4;
}
static inline void
intel_batchbuffer_emit_dword(struct intel_context *intel, GLuint dword)
{
#ifdef DEBUG
assert(intel_batchbuffer_space(intel) >= 4);
#endif
intel->batch.map[intel->batch.used++] = dword;
}
static inline void
intel_batchbuffer_emit_float(struct intel_context *intel, float f)
{
intel_batchbuffer_emit_dword(intel, float_as_int(f));
}
static inline void
intel_batchbuffer_require_space(struct intel_context *intel,
GLuint sz)
{
#ifdef DEBUG
assert(sz < intel->maxBatchSize - BATCH_RESERVED);
#endif
if (intel_batchbuffer_space(intel) < sz)
intel_batchbuffer_flush(intel);
}
static inline void
intel_batchbuffer_begin(struct intel_context *intel, int n)
{
intel_batchbuffer_require_space(intel, n * 4);
intel->batch.emit = intel->batch.used;
#ifdef DEBUG
intel->batch.total = n;
#endif
}
static inline void
intel_batchbuffer_advance(struct intel_context *intel)
{
#ifdef DEBUG
struct intel_batchbuffer *batch = &intel->batch;
unsigned int _n = batch->used - batch->emit;
assert(batch->total != 0);
if (_n != batch->total) {
fprintf(stderr, "ADVANCE_BATCH: %d of %d dwords emitted\n",
_n, batch->total);
abort();
}
batch->total = 0;
#else
(void) intel;
#endif
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n) intel_batchbuffer_begin(intel, n)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel, d)
#define OUT_BATCH_F(f) intel_batchbuffer_emit_float(intel,f)
#define OUT_RELOC(buf, read_domains, write_domain, delta) do { \
intel_batchbuffer_emit_reloc(intel, buf, \
read_domains, write_domain, delta); \
} while (0)
#define OUT_RELOC_FENCED(buf, read_domains, write_domain, delta) do { \
intel_batchbuffer_emit_reloc_fenced(intel, buf, \
read_domains, write_domain, delta); \
} while (0)
#define ADVANCE_BATCH() intel_batchbuffer_advance(intel);
#define CACHED_BATCH() intel_batchbuffer_cached_advance(intel);
#ifdef __cplusplus
}
#endif
#endif
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