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SDF & MONOSPACE FONT RENDERING

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tobid7
2026-09-05 11:56:13 +02:00
parent b29e298d55
commit 322ce785b9
14 changed files with 268 additions and 161 deletions
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backends/source/gfx_citro3d.cpp
+41 -20
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@@ -84,7 +84,7 @@ struct GfxCitro3D::Impl {
}
}
void SetupPixelStage() {
void SetupPixelStage(bool sdf) {
shaderProgramUse(&pShader);
C3D_BindProgram(&pShader);
C3D_SetAttrInfo(&pAttr);
@@ -92,25 +92,46 @@ struct GfxCitro3D::Impl {
if (!CurrentTex) return;
C3D_TexEnv* env = C3D_GetTexEnv(0);
C3D_TexEnvInit(env);
switch (CurrentTex->fmt) {
case GPU_A4:
case GPU_A8:
case GPU_L4:
case GPU_L8:
C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_RGB, GPU_REPLACE);
C3D_TexEnvFunc(env, C3D_Alpha, GPU_MODULATE);
break;
case GPU_RGB565:
C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_RGB, GPU_MODULATE);
C3D_TexEnvFunc(env, C3D_Alpha, GPU_REPLACE);
break;
C3D_TexEnv* env1 = C3D_GetTexEnv(1);
C3D_TexEnvInit(env1);
default:
C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
break;
if (sdf) {
C3D_TexEnvSrc(env, C3D_RGB, GPU_PRIMARY_COLOR);
C3D_TexEnvFunc(env, C3D_RGB, GPU_REPLACE);
C3D_TexEnvColor(env, 0x60606060);
C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0, GPU_CONSTANT);
C3D_TexEnvOpAlpha(env, GPU_TEVOP_A_SRC_ALPHA, GPU_TEVOP_A_SRC_ALPHA);
C3D_TexEnvFunc(env, C3D_Alpha, GPU_SUBTRACT);
C3D_TexEnvScale(env, C3D_Alpha, GPU_TEVSCALE_4);
C3D_TexEnvSrc(env1, C3D_RGB, GPU_PREVIOUS);
C3D_TexEnvFunc(env1, C3D_RGB, GPU_REPLACE);
C3D_TexEnvSrc(env1, C3D_Alpha, GPU_PREVIOUS, GPU_PRIMARY_COLOR);
C3D_TexEnvOpAlpha(env, GPU_TEVOP_A_SRC_ALPHA, GPU_TEVOP_A_SRC_ALPHA);
C3D_TexEnvFunc(env1, C3D_Alpha, GPU_MODULATE);
} else {
switch (CurrentTex->fmt) {
case GPU_A4:
case GPU_A8:
case GPU_L4:
case GPU_L8:
C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_RGB, GPU_REPLACE);
C3D_TexEnvFunc(env, C3D_Alpha, GPU_MODULATE);
break;
case GPU_RGB565:
C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_RGB, GPU_MODULATE);
C3D_TexEnvFunc(env, C3D_Alpha, GPU_REPLACE);
break;
default:
C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0);
C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
break;
}
}
}
};
@@ -146,7 +167,7 @@ void GfxCitro3D::SysDeinit() {
void GfxCitro3D::Submit(size_t count, size_t start) {
if (!impl) return;
BindTexture(CurrentTex);
impl->SetupPixelStage(); // needs to be called after
impl->SetupPixelStage(CurrentTexIsSDF); // needs to be called after
C3D_Mtx proj;
Mtx_OrthoTilt(&proj, 0.f, ViewPort.x, ViewPort.y, 0.f, 1.f, -1.f, false);
C3D_FVUnifMtx4x4(GPU_VERTEX_SHADER, impl->uLocProjection, &proj);