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Scale up the text for large displays

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This commit is contained in:
Sam Lantinga
2025-01-13 14:42:36 -08:00
parent 6bc7e88ca6
commit 21b433536a
1 changed files with 6 additions and 4 deletions
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docs/hello.c
+6 -4
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@@ -19,6 +19,7 @@ int main(int argc, char *argv[])
const char *message = "Hello World!"; const char *message = "Hello World!";
int w = 0, h = 0; int w = 0, h = 0;
float x, y; float x, y;
const float scale = 4.0f;
bool done = false; bool done = false;
/* Create the window */ /* Create the window */
@@ -39,10 +40,11 @@ int main(int argc, char *argv[])
} }
} }
/* Center the message */ /* Center the message and scale it up */
SDL_GetWindowSize(window, &w, &h); SDL_GetRenderOutputSize(renderer, &w, &h);
x = (float)(w - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE * SDL_strlen(message)) / 2; SDL_SetRenderScale(renderer, scale, scale);
y = (float)(h - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE) / 2; x = ((w / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE * SDL_strlen(message)) / 2;
y = ((h / scale) - SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE) / 2;
/* Draw the message */ /* Draw the message */
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);