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Fixed an issue where updating font textures caused random glyph artifacts

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This commit is contained in:
Leon Styhre 2024-05-19 18:39:26 +02:00
parent 092fe9acc9
commit 7cc901bb7f
2 changed files with 10 additions and 12 deletions
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20
es-core/src/resources/Font.cpp
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: MIT
//
// ES-DE
// ES-DE Frontend
// Font.h
//
// Loading, unloading, caching and rendering of fonts.
@ -639,18 +639,16 @@ void Font::rebuildTextures()
// Load the glyph bitmap through FT.
FT_Load_Char(face, it->first, FT_LOAD_RENDER);
FontTexture* tex {it->second.texture};
const glm::ivec2 glyphSize {glyphSlot->bitmap.width, glyphSlot->bitmap.rows};
const glm::ivec2 cursor {
static_cast<int>(it->second.texPos.x * it->second.texture->textureSize.x),
static_cast<int>(it->second.texPos.y * it->second.texture->textureSize.y)};
// Find the position/size.
glm::ivec2 cursor {static_cast<int>(it->second.texPos.x * tex->textureSize.x),
static_cast<int>(it->second.texPos.y * tex->textureSize.y)};
glm::ivec2 glyphSize {static_cast<int>(it->second.texSize.x * tex->textureSize.x),
static_cast<int>(it->second.texSize.y * tex->textureSize.y)};
// Upload to texture.
// Upload glyph bitmap to texture.
if (glyphSize.x > 0 && glyphSize.y > 0) {
mRenderer->updateTexture(tex->textureId, 0, Renderer::TextureType::RED, cursor.x,
cursor.y, glyphSize.x, glyphSize.y, glyphSlot->bitmap.buffer);
mRenderer->updateTexture(it->second.texture->textureId, 0, Renderer::TextureType::RED,
cursor.x, cursor.y, glyphSize.x, glyphSize.y,
glyphSlot->bitmap.buffer);
}
}
}

2
es-core/src/resources/Font.h
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: MIT
//
// ES-DE
// ES-DE Frontend
// Font.h
//
// Loading, unloading, caching and rendering of fonts.