void
intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, unsigned int x)
{
assert(intel_batchbuffer_space(batch) >= 4);
*(unsigned int *)batch->ptr = x;
batch->ptr += 4;
}
void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
unsigned int size)
{
assert(size < batch->size - 8);
if (intel_batchbuffer_space(batch) < size) {
intel_batchbuffer_flush(batch);
}
}
void
intel_batchbuffer_align(struct intel_batchbuffer *batch, unsigned int alignedment)
{
int used = batch->ptr - batch->map;
int pad_size;
assert((alignedment & 3) == 0);
pad_size = ALIGN(used, alignedment) - used;
assert((pad_size & 3) == 0);
assert(intel_batchbuffer_space(batch) >= pad_size);
while (pad_size >= 4) {
intel_batchbuffer_emit_dword(batch, 0);
pad_size -= 4;
}
}
GLuint *
intelExtendInlinePrimitive(struct intel_context *intel, GLuint dwords)
{
GLuint sz = dwords * sizeof(GLuint);
GLuint *ptr;
assert(intel->prim.flush == intel_flush_inline_primitive);
if (intel_batchbuffer_space(intel->batch) < sz)
intelWrapInlinePrimitive(intel);
/* _mesa_printf("."); */
intel->vtbl.assert_not_dirty(intel);
ptr = (GLuint *) intel->batch->ptr;
intel->batch->ptr += sz;
return ptr;
}
/* Emit a primitive referencing vertices in a vertex buffer.
*/
void
intelStartInlinePrimitive(struct intel_context *intel,
GLuint prim, GLuint batch_flags)
{
BATCH_LOCALS;
intel->vtbl.emit_state(intel);
/* Need to make sure at the very least that we don't wrap
* batchbuffers in BEGIN_BATCH below, otherwise the primitive will
* be emitted to a batchbuffer missing the required full-state
* preamble.
*/
if (intel_batchbuffer_space(intel->batch) < 100) {
intel_batchbuffer_flush(intel->batch);
intel->vtbl.emit_state(intel);
}
/* _mesa_printf("%s *", __progname); */
intel_wait_flips(intel, batch_flags);
/* Emit a slot which will be filled with the inline primitive
* command later.
*/
BEGIN_BATCH(2, batch_flags);
OUT_BATCH(0);
intel->prim.start_ptr = intel->batch->ptr;
intel->prim.primitive = prim;
intel->prim.flush = intel_flush_inline_primitive;
OUT_BATCH(0);
ADVANCE_BATCH();
/* _mesa_printf(">"); */
}
int
intel_batchbuffer_check_free_space(struct intel_batchbuffer *batch, int size)
{
return intel_batchbuffer_space(batch) >= size;
}