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[client] opengl: scale UI elements on high DPI displays

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This is done by simply scaling up the rendered text bitmap.
This commit is contained in:
Quantum 2021-02-21 01:34:32 -05:00 committed by Geoffrey McRae
parent fd50426dda
commit 48be58378c
1 changed files with 3 additions and 5 deletions
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8
client/renderers/OpenGL/opengl.c
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@ -111,6 +111,7 @@ struct Inst
LG_DSGLContext glContext; LG_DSGLContext glContext;
SDL_Point window; SDL_Point window;
float uiScale;
bool frameUpdate; bool frameUpdate;
const LG_Font * font; const LG_Font * font;
@ -305,6 +306,7 @@ void opengl_on_resize(void * opaque, const int width, const int height, const do
this->window.x = width * scale; this->window.x = width * scale;
this->window.y = height * scale; this->window.y = height * scale;
this->uiScale = (float) scale;
if (destRect.valid) if (destRect.valid)
{ {
@ -661,6 +663,7 @@ bool opengl_render(void * opaque, LG_RendererRotate rotate)
glPushMatrix(); glPushMatrix();
glLoadIdentity(); glLoadIdentity();
glTranslatef(this->window.x / 2, this->window.y / 2, 0.0f); glTranslatef(this->window.x / 2, this->window.y / 2, 0.0f);
glScalef(this->uiScale, this->uiScale, 1.0f);
glCallList(this->alertList); glCallList(this->alertList);
glPopMatrix(); glPopMatrix();
break; break;
@ -703,9 +706,6 @@ void opengl_update_fps(void * opaque, const float avgUPS, const float avgFPS)
this->fpsTexture = true; this->fpsTexture = true;
glNewList(this->fpsList, GL_COMPILE); glNewList(this->fpsList, GL_COMPILE);
glPushMatrix();
glLoadIdentity();
glEnable(GL_BLEND); glEnable(GL_BLEND);
glDisable(GL_TEXTURE_2D); glDisable(GL_TEXTURE_2D);
glColor4f(0.0f, 0.0f, 1.0f, 0.5f); glColor4f(0.0f, 0.0f, 1.0f, 0.5f);
@ -727,8 +727,6 @@ void opengl_update_fps(void * opaque, const float avgUPS, const float avgFPS)
glEnd(); glEnd();
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
glDisable(GL_BLEND); glDisable(GL_BLEND);
glPopMatrix();
glEndList(); glEndList();
} }