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softgpu: Fix leaked range flag on cull.

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Fixes some backgrounds in Final Fantasy 4, probably others.
This commit is contained in:
Unknown W. Brackets 2021-11-14 08:43:52 -08:00
parent 87d2e16b11
commit 5bb6245b1f
2 changed files with 16 additions and 15 deletions
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26
GPU/Software/TransformUnit.cpp
View file

@ -35,11 +35,11 @@
#define TRANSFORM_BUF_SIZE (65536 * 48)
TransformUnit::TransformUnit() {
buf = (u8 *)AllocateMemoryPages(TRANSFORM_BUF_SIZE, MEM_PROT_READ | MEM_PROT_WRITE);
decoded_ = (u8 *)AllocateMemoryPages(TRANSFORM_BUF_SIZE, MEM_PROT_READ | MEM_PROT_WRITE);
}
TransformUnit::~TransformUnit() {
FreeMemoryPages(buf, DECODED_VERTEX_BUFFER_SIZE);
FreeMemoryPages(decoded_, DECODED_VERTEX_BUFFER_SIZE);
}
SoftwareDrawEngine::SoftwareDrawEngine() {
@ -156,8 +156,7 @@ ScreenCoords TransformUnit::DrawingToScreen(const DrawingCoords& coords)
return ret;
}
VertexData TransformUnit::ReadVertex(VertexReader& vreader)
{
VertexData TransformUnit::ReadVertex(VertexReader &vreader, bool &outside_range_flag) {
VertexData vertex;
float pos[3];
@ -320,9 +319,9 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
if (indices)
GetIndexBounds(indices, vertex_count, vertex_type, &index_lower_bound, &index_upper_bound);
vdecoder.DecodeVerts(buf, vertices, index_lower_bound, index_upper_bound);
vdecoder.DecodeVerts(decoded_, vertices, index_lower_bound, index_upper_bound);
VertexReader vreader(buf, vtxfmt, vertex_type);
VertexReader vreader(decoded_, vtxfmt, vertex_type);
static VertexData data[4]; // Normally max verts per prim is 3, but we temporarily need 4 to detect rectangles from strips.
// This is the index of the next vert in data (or higher, may need modulus.)
@ -348,6 +347,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
// TODO: Do this in two passes - first process the vertices (before indexing/stripping),
// then resolve the indices. This lets us avoid transforming shared vertices twice.
bool outside_range_flag = false;
switch (prim_type) {
case GE_PRIM_POINTS:
case GE_PRIM_LINES:
@ -361,7 +361,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
vreader.Goto(vtx);
}
data[data_index++] = ReadVertex(vreader);
data[data_index++] = ReadVertex(vreader, outside_range_flag);
if (data_index < vtcs_per_prim) {
// Keep reading. Note: an incomplete prim will stay read for GE_PRIM_KEEP_PREVIOUS.
continue;
@ -420,7 +420,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
vreader.Goto(vtx);
}
data[(data_index++) & 1] = ReadVertex(vreader);
data[(data_index++) & 1] = ReadVertex(vreader, outside_range_flag);
if (outside_range_flag) {
// Drop all primitives containing the current vertex
skip_count = 2;
@ -453,7 +453,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
else {
vreader.Goto(vtx);
}
data[vtx] = ReadVertex(vreader);
data[vtx] = ReadVertex(vreader, outside_range_flag);
}
// If a strip is effectively a rectangle, draw it as such!
@ -463,6 +463,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
}
}
outside_range_flag = false;
for (int vtx = 0; vtx < vertex_count; ++vtx) {
if (indices) {
vreader.Goto(ConvertIndex(vtx) - index_lower_bound);
@ -471,7 +472,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
}
int provoking_index = (data_index++) % 3;
data[provoking_index] = ReadVertex(vreader);
data[provoking_index] = ReadVertex(vreader, outside_range_flag);
if (outside_range_flag) {
// Drop all primitives containing the current vertex
skip_count = 2;
@ -512,11 +513,12 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
} else {
vreader.Goto(0);
}
data[0] = ReadVertex(vreader);
data[0] = ReadVertex(vreader, outside_range_flag);
data_index++;
start_vtx = 1;
}
outside_range_flag = false;
for (int vtx = start_vtx; vtx < vertex_count; ++vtx) {
if (indices) {
vreader.Goto(ConvertIndex(vtx) - index_lower_bound);
@ -525,7 +527,7 @@ void TransformUnit::SubmitPrimitive(void* vertices, void* indices, GEPrimitiveTy
}
int provoking_index = 2 - ((data_index++) % 2);
data[provoking_index] = ReadVertex(vreader);
data[provoking_index] = ReadVertex(vreader, outside_range_flag);
if (outside_range_flag) {
// Drop all primitives containing the current vertex
skip_count = 2;

5
GPU/Software/TransformUnit.h
View file

@ -132,10 +132,9 @@ public:
void SubmitPrimitive(void* vertices, void* indices, GEPrimitiveType prim_type, int vertex_count, u32 vertex_type, int *bytesRead, SoftwareDrawEngine *drawEngine);
bool GetCurrentSimpleVertices(int count, std::vector<GPUDebugVertex> &vertices, std::vector<u16> &indices);
VertexData ReadVertex(VertexReader& vreader);
VertexData ReadVertex(VertexReader &vreader, bool &outside_range_flag);
bool outside_range_flag = false;
u8 *buf;
u8 *decoded_;
};
class SoftwareDrawEngine : public DrawEngineCommon {