diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_batchbuffer.h')
-rw-r--r-- | src/mesa/drivers/dri/intel/intel_batchbuffer.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.h b/src/mesa/drivers/dri/intel/intel_batchbuffer.h new file mode 100644 index 0000000..b5c7a78 --- /dev/null +++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.h @@ -0,0 +1,109 @@ +#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 + +#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 |