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Fixing ringbuffer pointers and no-op instructions.

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This commit is contained in:
Ben Vanik
2013-09-25 00:46:47 -07:00
parent 03494c6b88
commit b7fd4f975d
1 changed files with 8 additions and 1 deletions
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9
src/xenia/gpu/ring_buffer_worker.cc
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@@ -116,6 +116,12 @@ void RingBufferWorker::ExecuteSegment(uint32_t ptr, uint32_t length) {
const uint8_t* packet_base = p + ptr + n * 4; const uint8_t* packet_base = p + ptr + n * 4;
const uint32_t packet = XEGETUINT32BE(packet_base); const uint32_t packet = XEGETUINT32BE(packet_base);
const uint32_t packet_type = packet >> 30; const uint32_t packet_type = packet >> 30;
if (packet == 0) {
n++;
continue;
}
switch (packet_type) { switch (packet_type) {
case 0x00: case 0x00:
{ {
@@ -157,6 +163,7 @@ void RingBufferWorker::ExecuteSegment(uint32_t ptr, uint32_t length) {
case 0x02: case 0x02:
// Type-2 packet. // Type-2 packet.
// No-op. Do nothing. // No-op. Do nothing.
n++;
break; break;
case 0x03: case 0x03:
{ {
@@ -215,7 +222,7 @@ void RingBufferWorker::ExecuteSegment(uint32_t ptr, uint32_t length) {
// value? // value?
uint32_t d2 = XEGETUINT32BE(packet_base + 3 * 4); uint32_t d2 = XEGETUINT32BE(packet_base + 3 * 4);
XESETUINT32BE( XESETUINT32BE(
p + d1 + (primary_buffer_ptr_ & ~0x1FFFFFFF), d2); p + (d1 & ~0x3) + (primary_buffer_ptr_ & ~0x1FFFFFFF), d2);
} }
break; break;