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Fixed not full texture rendering on viewport resulting in clamping

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This commit is contained in:
Pasalc 2023-10-17 23:44:16 +03:00
parent 21c38d9fd1
commit 3dee616cf6
1 changed files with 5 additions and 54 deletions
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59
src/WallpaperEngine/Render/CWallpaper.cpp
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@ -219,64 +219,15 @@ void CWallpaper::render (glm::ivec4 viewport, bool vflip)
uint32_t projectionHeight = this->getHeight (); uint32_t projectionHeight = this->getHeight ();
float ustart = 0.0f; float ustart = 0.0f;
float uend = 0.0f; float uend = 1.0f;
float vstart = 0.0f; float vstart = 1.0f;
float vend = 0.0f; float vend = 0.0f;
if ( if (vflip)
(viewport.w > viewport.z && projectionWidth >= projectionHeight) ||
(viewport.z > viewport.w && projectionHeight > projectionWidth)
)
{ {
if (vflip) vstart = 0.0f;
{ vend = 1.0f;
vstart = 0.0f;
vend = 1.0f;
}
else
{
vstart = 1.0f;
vend = 0.0f;
}
int newWidth = viewport.w / (float) projectionHeight * projectionWidth;
float newCenter = newWidth / 2.0f;
float viewportCenter = viewport.z / 2.0;
float left = newCenter - viewportCenter;
float right = newCenter + viewportCenter;
ustart = left / newWidth;
uend = right / newWidth;
} }
if (
(viewport.z > viewport.w && projectionWidth >= projectionHeight) ||
(viewport.w > viewport.z && projectionHeight > projectionWidth)
)
{
ustart = 0.0f;
uend = 1.0f;
int newHeight = viewport.z / (float) projectionWidth * projectionHeight;
float newCenter = newHeight / 2.0f;
float viewportCenter = viewport.w / 2.0;
float down = newCenter - viewportCenter;
float up = newCenter + viewportCenter;
if (vflip)
{
vstart = down / newHeight;
vend = up / newHeight;
}
else
{
vstart = up / newHeight;
vend = down / newHeight;
}
}
GLfloat texCoords [] = { GLfloat texCoords [] = {
ustart, vstart, ustart, vstart,
uend, vstart, uend, vstart,