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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 rw {
namespace dc { 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 struct DcRaster
{ {
uint32_t pvr_flags; uint32_t pvr_flags;
@@ -1116,18 +1136,30 @@ void endUpdate(Camera* cam) {
} }
pvr_list_finish(); pvr_list_finish();
} }
pvr_list_begin(PVR_LIST_TR_POLY);
if (blendCallbacks.size()) { if (blendCallbacks.size()) {
pvr_dr_init(&drState); pvr_dr_init(&drState);
pvr_list_begin(PVR_LIST_TR_POLY);
for (auto&& cb: blendCallbacks) { for (auto&& cb: blendCallbacks) {
cb(); 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) #if !defined(DC_TEXCONV)
VmuProfiler::getInstance()->updateVertexBufferUsage(); VmuProfiler::getInstance()->updateVertexBufferUsage();
#endif #endif
pvr_list_finish();
// dbglog(DBG_CRITICAL, "Free vertex target: %d\n", freeVertexTarget);
// XXX not by definition the best place to do this XXX // XXX not by definition the best place to do this XXX
// We need to know that pvr isn't using textures before moving them // We need to know that pvr isn't using textures before moving them
// XXX This is also very slow right now XXX // 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); 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) { void defaultRenderCB(ObjPipeline *pipe, Atomic *atomic) {
rw::Camera *cam = engine->currentCamera; rw::Camera *cam = engine->currentCamera;
// Frustum Culling // Frustum Culling
@@ -3700,7 +3720,7 @@ void defaultRenderCB(ObjPipeline *pipe, Atomic *atomic) {
// clipping performed per meshlet // clipping performed per meshlet
auto renderCB = [contextId, n] { auto renderCB = [contextId, n] {
if (vertexBufferFree() < (128 * 1024)) { if (vertexBufferFree() < freeVertexTarget) {
return; return;
} }
const atomic_context_t* acp = &atomicContexts[contextId]; const atomic_context_t* acp = &atomicContexts[contextId];
@@ -4627,8 +4647,8 @@ deviceSystem(DeviceReq req, void *arg0, int32 n)
if (n == 1) { if (n == 1) {
VIDEO_MODE_SCALE_X = 1; VIDEO_MODE_SCALE_X = 1;
pvr_params.fsaa_enabled = 0; pvr_params.fsaa_enabled = 0;
pvr_params.vertex_buf_size = (1024 + 1024) * 1024; pvr_params.vertex_buf_size = (1024) * 1024;
pvr_params.opb_overflow_count = 7; // 268800 bytes pvr_params.opb_overflow_count = 2; // 268800 bytes
} else { } else {
VIDEO_MODE_SCALE_X = 2; VIDEO_MODE_SCALE_X = 2;
pvr_params.fsaa_enabled = 1; pvr_params.fsaa_enabled = 1;