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save 75% of font memory

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tobid7
2026-09-03 09:36:41 +02:00
parent 2801b876e6
commit b29e298d55
2 changed files with 17 additions and 11 deletions
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backends/source/gfx_opengl3.cpp
+13 -3
View File
@@ -80,7 +80,7 @@ void GfxOpenGL3::BindTexture(TextureID id) {
glUniform1i(pLocTex, 0);
GLint fmt = 0;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &fmt);
glUniform1i(pLocAlfa, fmt == GL_ALPHA);
glUniform1i(pLocAlfa, fmt == GL_R8);
}
void GfxOpenGL3::SysReset() {
@@ -104,13 +104,23 @@ Li::Texture GfxOpenGL3::LoadTexture(const std::vector<PD::u8>& pixels, int w,
// Set base format (Always using RGBA as base)
GLenum fmt = GL_RGBA;
GLenum ifmt = GL_RGBA8;
if (type == TextureFormat::RGB24) {
ifmt = GL_RGB8;
fmt = GL_RGB;
} else if (type == TextureFormat::A8) {
fmt = GL_ALPHA;
ifmt = GL_R8;
fmt = GL_RED;
}
glTexImage2D(GL_TEXTURE_2D, 0, fmt, w, h, 0, fmt, GL_UNSIGNED_BYTE,
glTexImage2D(GL_TEXTURE_2D, 0, ifmt, w, h, 0, fmt, GL_UNSIGNED_BYTE,
pixels.data());
if (type == TextureFormat::A8) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_RED);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_ONE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G, GL_ONE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_ONE);
}
if (filter == TextureFilter::Linear) {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
source/lithium/font.cpp
+4 -8
View File
@@ -51,7 +51,7 @@ PD_API void Font::LoadTTF(const std::vector<u8>& data, int px_height) {
// Cache to not render same codepoint tex twice
std::map<u32, int> buf_cache;
std::vector<u8> font_tex(texszs * texszs * 4, 0);
std::vector<u8> font_tex(texszs * texszs, 0);
fvec2 off;
bool empty = true;
@@ -116,12 +116,8 @@ PD_API void Font::LoadTTF(const std::vector<u8>& data, int px_height) {
for (int y = 0; y < h; ++y) {
for (int x = 0; x < w; ++x) {
int map_pos = ((static_cast<int>(off.y) + y) * texszs +
(static_cast<int>(off.x) + x)) *
4;
font_tex[map_pos + 0] = 255;
font_tex[map_pos + 1] = 255;
font_tex[map_pos + 2] = 255;
font_tex[map_pos + 3] = bitmap[x + y * w];
(static_cast<int>(off.x) + x));
font_tex[map_pos] = bitmap[x + y * w];
}
}
@@ -286,7 +282,7 @@ PD_API void Font::CleanupTMS() {}
PD_API void Font::BakeAndPush(bool final, std::vector<u8>& font_tex,
int texszs) {
auto t = PD::Gfx::LoadTexture(font_tex, texszs, texszs);
auto t = PD::Gfx::LoadTexture(font_tex, texszs, texszs, TextureFormat::A8);
PDLOG("Font: Texture backed as 0x{:X} at {}", t.GetID(), pCurrentTex);
Textures.push_back(t.GetID());
pCurrentTex = Textures.size();