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Fix off-by-one

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This commit is contained in:
Luke Benstead 2024-04-03 22:30:41 +01:00
parent 5299badf58
commit 77f4b59aea
1 changed files with 14 additions and 3 deletions
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17
GL/platforms/sh4.c
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@ -221,9 +221,10 @@ void SceneListSubmit(Vertex* vertices, int n) {
sq = SQ_BASE_ADDRESS;
Vertex* v0 = vertices;
for(int i = 0; i < n - 2; ++i, v0++) {
for(int i = 0; i < n - 2; ++i, ++v0) {
if(is_header(v0)) {
_glPushHeaderOrVertex(v0);
visible_mask = 0;
continue;
}
@ -235,19 +236,29 @@ void SceneListSubmit(Vertex* vertices, int n) {
if(is_header(v2)) {
// OK so we've hit a new context header
// we need to finalize this strip and move on
SUBMIT_QUEUED_VERTEX(qv.flags);
// If the last triangle was all visible, we need
// to submit the last two vertices, any clipped triangles
// would've
if(visible_mask == ALL_VISIBLE) {
SUBMIT_QUEUED_VERTEX(qv.flags);
_glPerspectiveDivideVertex(v0, h);
_glPushHeaderOrVertex(v0);
v1->flags = GPU_CMD_VERTEX_EOL;
_glPerspectiveDivideVertex(v1, h);
_glPushHeaderOrVertex(v1);
i += 2;
} else {
// If the previous triangle wasn't all visible, and we
// queued a vertex - we force it to be EOL and submit
SUBMIT_QUEUED_VERTEX(GPU_CMD_VERTEX_EOL);
}
i++;
v0++;
visible_mask = 0;
continue;
}