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Added in correcion calculations for surface_scale.

This commit is contained in:
Adam Harrison 2021-09-21 21:49:32 -04:00
parent 940db0f9c7
commit c5fda5237f
1 changed files with 12 additions and 6 deletions
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18
src/renderer.c
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@ -164,7 +164,9 @@ RenFont* ren_font_load(const char* path, float size, bool subpixel, unsigned cha
FT_Face face;
if (FT_New_Face( library, path, 0, &face))
return NULL;
if (FT_Set_Pixel_Sizes(face, 0, (int)size))
const int surface_scale = renwin_surface_scale(&window_renderer);
if (FT_Set_Pixel_Sizes(face, 0, (int)(size*surface_scale)))
goto failure;
int len = strlen(path);
RenFont* font = check_alloc(calloc(1, sizeof(RenFont) + len + 1));
@ -212,7 +214,8 @@ int ren_font_get_width(RenFont *font, const char *text) {
text = utf8_to_codepoint(text, &codepoint);
width += font_get_glyphset(font, codepoint)->metrics[codepoint % 256].xadvance;
}
return width;
const int surface_scale = renwin_surface_scale(&window_renderer);
return width / surface_scale;
}
float ren_font_get_size(RenFont *font) {
@ -225,7 +228,10 @@ int ren_font_get_height(RenFont *font) {
int ren_draw_text(RenFont *font, const char *text, float x, int y, RenColor color) {
SDL_Surface *surface = renwin_get_surface(&window_renderer);
const RenRect clip = window_renderer.clip;
float pen_x = x;
const int surface_scale = renwin_surface_scale(&window_renderer);
float pen_x = x * surface_scale;
y *= surface_scale;
int bytes_per_pixel = surface->format->BytesPerPixel;
const char* end = text + strlen(text);
unsigned char* destination_pixels = surface->pixels;
@ -241,7 +247,7 @@ int ren_draw_text(RenFont *font, const char *text, float x, int y, RenColor colo
int glyph_end = metric->x1, glyph_start = metric->x0;
if (color.a > 0 && end_x >= clip.x && start_x <= clip_end_x) {
for (int line = metric->y0; line < metric->y1; ++line) {
int target_y = line + y - metric->y0 - metric->bitmap_top + font->size;
int target_y = line + y - metric->y0 - metric->bitmap_top + font->size * surface_scale;
if (target_y < clip.y)
continue;
if (target_y >= clip_end_y)
@ -275,8 +281,8 @@ int ren_draw_text(RenFont *font, const char *text, float x, int y, RenColor colo
pen_x += metric->xadvance ? metric->xadvance : font->space_advance;
}
if (font->style & FONT_STYLE_UNDERLINE)
ren_draw_rect((RenRect){ x, y + ren_font_get_height(font) - 1, pen_x - x, 1 }, color);
return pen_x;
ren_draw_rect((RenRect){ x, y / surface_scale + ren_font_get_height(font) - 1, (pen_x - x) / surface_scale, 1 }, color);
return pen_x / surface_scale;
}
/******************* Rectangles **********************/