e886ae4c58
This reverts commit b2f1aa2389.
Somehow I ended up with my branch's save-this-while-I-work-on-master commit
actually on master.
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
#ifndef INTEL_BATCHBUFFER_H
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#define INTEL_BATCHBUFFER_H
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#include "mtypes.h"
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#include "dri_bufmgr.h"
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struct intel_context;
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#define BATCH_SZ 16384
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#define BATCH_RESERVED 16
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#define MAX_RELOCS 4096
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#define INTEL_BATCH_NO_CLIPRECTS 0x1
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#define INTEL_BATCH_CLIPRECTS 0x2
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struct buffer_reloc
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{
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dri_bo *buf;
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GLuint offset;
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GLuint delta; /* not needed? */
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GLuint validate_flags;
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};
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struct intel_batchbuffer
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{
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struct intel_context *intel;
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dri_bo *buf;
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dri_fence *last_fence;
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GLuint flags;
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drmBOList list;
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GLuint list_count;
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GLubyte *map;
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GLubyte *ptr;
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struct buffer_reloc reloc[MAX_RELOCS];
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GLuint nr_relocs;
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GLuint size;
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};
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struct intel_batchbuffer *intel_batchbuffer_alloc(struct intel_context
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*intel);
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void intel_batchbuffer_free(struct intel_batchbuffer *batch);
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void intel_batchbuffer_finish(struct intel_batchbuffer *batch);
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void intel_batchbuffer_flush(struct intel_batchbuffer *batch);
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void intel_batchbuffer_reset(struct intel_batchbuffer *batch);
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/* Unlike bmBufferData, this currently requires the buffer be mapped.
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* Consider it a convenience function wrapping multple
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* intel_buffer_dword() calls.
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*/
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void intel_batchbuffer_data(struct intel_batchbuffer *batch,
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const void *data, GLuint bytes, GLuint flags);
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void intel_batchbuffer_release_space(struct intel_batchbuffer *batch,
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GLuint bytes);
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GLboolean intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
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dri_bo *buffer,
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GLuint flags, GLuint offset);
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/* Inline functions - might actually be better off with these
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* non-inlined. Certainly better off switching all command packets to
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* be passed as structs rather than dwords, but that's a little bit of
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* work...
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*/
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static INLINE GLuint
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intel_batchbuffer_space(struct intel_batchbuffer *batch)
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{
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return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map);
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}
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static INLINE void
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intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, GLuint dword)
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{
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assert(batch->map);
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assert(intel_batchbuffer_space(batch) >= 4);
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*(GLuint *) (batch->ptr) = dword;
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batch->ptr += 4;
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}
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static INLINE void
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intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
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GLuint sz, GLuint flags)
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{
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assert(sz < batch->size - 8);
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if (intel_batchbuffer_space(batch) < sz ||
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(batch->flags != 0 && flags != 0 && batch->flags != flags))
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intel_batchbuffer_flush(batch);
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batch->flags |= flags;
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}
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/* Here are the crusty old macros, to be removed:
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*/
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#define BATCH_LOCALS
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#define BEGIN_BATCH(n, flags) do { \
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assert(!intel->prim.flush); \
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intel_batchbuffer_require_space(intel->batch, (n)*4, flags); \
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} while (0)
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#define OUT_BATCH(d) intel_batchbuffer_emit_dword(intel->batch, d)
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#define OUT_RELOC(buf, flags, delta) do { \
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assert((delta) >= 0); \
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intel_batchbuffer_emit_reloc(intel->batch, buf, flags, delta); \
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} while (0)
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#define ADVANCE_BATCH() do { } while(0)
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#endif
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