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Dynamically adjust pvr guard buffer, update KOS for avoiding lockups

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This commit is contained in:
Stefanos Kornilios Mitsis Poiitidis
2025-03-16 19:17:21 +02:00
parent 3664a47755
commit 131f076eed
1 changed files with 37 additions and 17 deletions
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54
vendor/librw/src/dc/rwdc.cpp vendored
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@@ -560,6 +560,26 @@ void DCE_InitMatrices() {
namespace rw {
namespace dc {
size_t vertexBufferFree() {
size_t end = PVR_GET(PVR_TA_VERTBUF_END);
size_t pos = PVR_GET(PVR_TA_VERTBUF_POS);
size_t free = end - pos;
return free;
}
bool vertexOverflown() {
return PVR_GET(PVR_TA_VERTBUF_POS) >= PVR_GET(PVR_TA_VERTBUF_END) ||
PVR_GET(PVR_TA_OPB_POS)*4 >= PVR_GET(PVR_TA_OPB_END);
}
constexpr size_t freeVertexTarget_Step_Up = 32 * 1024;
constexpr size_t freeVertexTarget_Step_Down = 4 * 1024;
constexpr size_t freeVertexTarget_Min = 64 * 1024;
size_t freeVertexTarget = freeVertexTarget_Min;
struct DcRaster
{
uint32_t pvr_flags;
@@ -1116,18 +1136,30 @@ void endUpdate(Camera* cam) {
}
pvr_list_finish();
}
pvr_list_begin(PVR_LIST_TR_POLY);
if (blendCallbacks.size()) {
pvr_dr_init(&drState);
pvr_list_begin(PVR_LIST_TR_POLY);
for (auto&& cb: blendCallbacks) {
cb();
}
pvr_list_finish();
}
if (vertexOverflown()) {
freeVertexTarget += freeVertexTarget_Step_Up;
} else {
freeVertexTarget -= freeVertexTarget_Step_Down;
if (freeVertexTarget < freeVertexTarget_Min) {
freeVertexTarget = freeVertexTarget_Min;
}
}
#if !defined(DC_TEXCONV)
VmuProfiler::getInstance()->updateVertexBufferUsage();
#endif
pvr_list_finish();
// dbglog(DBG_CRITICAL, "Free vertex target: %d\n", freeVertexTarget);
// XXX not by definition the best place to do this XXX
// We need to know that pvr isn't using textures before moving them
// XXX This is also very slow right now XXX
@@ -3506,18 +3538,6 @@ void pvr_poly_cxt_txr_fast(pvr_poly_hdr_t *hdr, pvr_list_t list,
pvr_poly_compile_fast(hdr, dst);
}
size_t vertexBufferFree() {
size_t end = PVR_GET(PVR_TA_VERTBUF_END);
size_t pos = PVR_GET(PVR_TA_VERTBUF_POS);
size_t free = end - pos;
return free;
}
void defaultRenderCB(ObjPipeline *pipe, Atomic *atomic) {
rw::Camera *cam = engine->currentCamera;
// Frustum Culling
@@ -3700,7 +3720,7 @@ void defaultRenderCB(ObjPipeline *pipe, Atomic *atomic) {
// clipping performed per meshlet
auto renderCB = [contextId, n] {
if (vertexBufferFree() < (128 * 1024)) {
if (vertexBufferFree() < freeVertexTarget) {
return;
}
const atomic_context_t* acp = &atomicContexts[contextId];
@@ -4627,8 +4647,8 @@ deviceSystem(DeviceReq req, void *arg0, int32 n)
if (n == 1) {
VIDEO_MODE_SCALE_X = 1;
pvr_params.fsaa_enabled = 0;
pvr_params.vertex_buf_size = (1024 + 1024) * 1024;
pvr_params.opb_overflow_count = 7; // 268800 bytes
pvr_params.vertex_buf_size = (1024) * 1024;
pvr_params.opb_overflow_count = 2; // 268800 bytes
} else {
VIDEO_MODE_SCALE_X = 2;
pvr_params.fsaa_enabled = 1;