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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"
#define BATCH_SZ 16384
#define BATCH_RESERVED 16
struct intel_batchbuffer
{
struct intel_context *intel;
drm_intel_bo *buf;
GLubyte *map;
GLubyte *ptr;
GLuint size;
uint32_t state_batch_offset;
#ifdef DEBUG
/** Tracking of BEGIN_BATCH()/OUT_BATCH()/ADVANCE_BATCH() debugging */
struct {
GLuint total;
GLubyte *start_ptr;
} emit;
#endif
bool is_blit;
GLuint dirty_state;
GLuint reserved_space;
};
struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context
*intel);
void intel_batchbuffer_free(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, bool is_blit);
void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
GLuint bytes);
GLboolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
drm_intel_bo *buffer,
uint32_t read_domains,
uint32_t write_domain,
uint32_t offset);
GLboolean intel_batchbuffer_emit_reloc_fenced(struct intel_batchbuffer *batch,
drm_intel_bo *buffer,
uint32_t read_domains,
uint32_t write_domain,
uint32_t offset);
void intel_batchbuffer_emit_mi_flush(struct intel_batchbuffer *batch);
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 GLint
intel_batchbuffer_space(struct intel_batchbuffer *batch)
{
return (batch->state_batch_offset - batch->reserved_space) -
(batch->ptr - batch->map);
}
static INLINE void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, GLuint dword)
{
#ifdef DEBUG
assert(intel_batchbuffer_space(batch) >= 4);
#endif
*(GLuint *) (batch->ptr) = dword;
batch->ptr += 4;
}
static INLINE void
intel_batchbuffer_emit_float(struct intel_batchbuffer *batch, float f)
{
intel_batchbuffer_emit_dword(batch, float_as_int(f));
}
static INLINE void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
GLuint sz, int is_blit)
{
if (batch->intel->gen >= 6 && batch->is_blit != is_blit &&
batch->ptr != batch->map) {
intel_batchbuffer_flush(batch);
}
batch->is_blit = is_blit;
#ifdef DEBUG
assert(sz < batch->size - 8);
#endif
if (intel_batchbuffer_space(batch) < sz)
intel_batchbuffer_flush(batch);
}
static INLINE void
intel_batchbuffer_begin(struct intel_batchbuffer *batch, int n, bool is_blit)
{
intel_batchbuffer_require_space(batch, n * 4, is_blit);
#ifdef DEBUG
assert(batch->map);
assert(batch->emit.start_ptr == NULL);
batch->emit.total = n * 4;
batch->emit.start_ptr = batch->ptr;
#endif
}
static INLINE void
intel_batchbuffer_advance(struct intel_batchbuffer *batch)
{
#ifdef DEBUG
unsigned int _n = batch->ptr - batch->emit.start_ptr;
assert(batch->emit.start_ptr != NULL);
if (_n != batch->emit.total) {
fprintf(stderr, "ADVANCE_BATCH: %d of %d dwords emitted\n",
_n, batch->emit.total);
abort();
}
batch->emit.start_ptr = NULL;
#endif
}
/* Here are the crusty old macros, to be removed:
*/
#define BATCH_LOCALS
#define BEGIN_BATCH(n) intel_batchbuffer_begin(intel->batch, n, false)
#define BEGIN_BATCH_BLT(n) intel_batchbuffer_begin(intel->batch, n, true)
#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
#define OUT_BATCH_F(f) intel_batchbuffer_emit_float(intel->batch,f)
#define OUT_RELOC(buf, read_domains, write_domain, delta) do { \
intel_batchbuffer_emit_reloc(intel->batch, 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->batch, buf, \
read_domains, write_domain, delta); \
} while (0)
#define ADVANCE_BATCH() intel_batchbuffer_advance(intel->batch);
#endif
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