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fix(screen): build layer visibility rects in correct order

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This commit is contained in:
fallenoak 2023-04-01 08:24:27 -05:00
parent 6e48b775aa
commit 7beaf8d992
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GPG Key ID: 7628F8E61AEA070D
1 changed files with 5 additions and 20 deletions
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25
src/gx/Screen.cpp
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@ -31,24 +31,14 @@ int32_t OnPaint(const void* a1, void* a2) {
// return 1;
// }
CILayer* layer;
CSRgn rgn;
SRgnCreate(&rgn.m_handle, 0);
RECTF baseRect;
baseRect.left = 0.0f;
baseRect.bottom = 0.0f;
baseRect.right = 1.0f;
baseRect.top = 1.0f;
RECTF baseRect = { 0.0f, 0.0f, 1.0f, 1.0f };
SRgnCombineRectf(rgn.m_handle, &baseRect, nullptr, 2);
layer = s_zOrderList.Head();
while (layer) {
// Walk the layer list backward (highest z-order to lowest) to establish visibility rects
for (auto layer = s_zOrderList.Tail(); layer; layer = layer->zorderlink.Prev()) {
SRgnGetBoundingRectf(rgn.m_handle, &layer->visible);
layer->visible.left = std::max(layer->visible.left, layer->rect.left);
@ -59,8 +49,6 @@ int32_t OnPaint(const void* a1, void* a2) {
if (!(layer->flags & 0x1)) {
SRgnCombineRectf(rgn.m_handle, &layer->rect, nullptr, 4);
}
layer = layer->zorderlink.Next();
}
SRgnDelete(rgn.m_handle);
@ -69,9 +57,8 @@ int32_t OnPaint(const void* a1, void* a2) {
float minX, maxX, minY, maxY, minZ, maxZ;
GxXformViewport(minX, maxX, minY, maxY, minZ, maxZ);
layer = s_zOrderList.Head();
while (layer) {
// Walk the layer list forward (lowest z-order to highest) to paint visible layers
for (auto layer = s_zOrderList.Head(); layer; layer = layer->zorderlink.Next()) {
if (layer->visible.right > layer->visible.left && layer->visible.top > layer->visible.bottom) {
if (layer->flags & 0x4) {
GxXformSetViewport(
@ -117,8 +104,6 @@ int32_t OnPaint(const void* a1, void* a2) {
Screen::s_elapsedSec
);
}
layer = layer->zorderlink.Next();
}
// Restore viewport