diff options
Diffstat (limited to 'fbgl.h')
| -rw-r--r-- | fbgl.h | 84 |
1 files changed, 52 insertions, 32 deletions
@@ -52,20 +52,20 @@ * Structs */ typedef struct fbgl { - int width; - int height; - int fd; - size_t screen_size; + int32_t width; + int32_t height; + int32_t fd; + uint32_t screen_size; uint32_t* pixels; struct fb_var_screeninfo vinfo; // Variable screen information struct fb_fix_screeninfo finfo; // Fixed screen information } fbgl_t; typedef struct fbgl_window { - int x; // Top-left x-coordinate of the window - int y; // Top-left y-coordinate of the window - int width; // Width of the window - int height; // Height of the window + int32_t x; // Top-left x-coordinate of the window + int32_t y; // Top-left y-coordinate of the window + uint32_t width; // Width of the window + uint32_t height; // Height of the window fbgl_t* fb; // Pointer to the framebuffer context } fbgl_window_t; @@ -82,8 +82,8 @@ typedef struct fbgl_psf2_header { } fbgl_psf2_header_t; typedef struct fbgl_point { - size_t x; - size_t y; + int32_t x; + int32_t y; } fbgl_point_t; typedef struct fbgl_tga_texture { @@ -160,7 +160,6 @@ void fbgl_destroy(fbgl_t* fb); void fbgl_clear(uint32_t color); void fbgl_put_pixel(int x, int y, uint32_t color, fbgl_t* fb); void fbgl_draw_line(fbgl_point_t x, fbgl_point_t y, uint32_t color, fbgl_t* fb); -void fbgl_set_bg(); /** * Display methods @@ -170,9 +169,9 @@ void fbgl_display(); /** * Access framebuffer data methods */ -uint32_t* fb_get_data(void); -int fb_get_width(void); -int fb_get_height(void); +uint32_t* fb_get_data(fbgl_t const* fb); +uint32_t fb_get_width(fbgl_t const* fb); +uint32_t fb_get_height(fbgl_t const* fb); /** * Shapes @@ -189,7 +188,7 @@ void fbgl_draw_rectangle_filled(fbgl_point_t top_left, */ fbgl_tga_texture_t* fbgl_load_tga_texture(const char* path); void fbgl_destroy_texture(fbgl_tga_texture_t* texture); -void fbgl_draw_texture(fbgl_t* fb, fbgl_tga_texture_t* texture, int x, int y); +void fbgl_draw_texture(fbgl_t* fb, fbgl_tga_texture_t const* texture, int32_t x, int32_t y); /** * Keyboard @@ -282,19 +281,22 @@ void fbgl_destroy(fbgl_t* fb) void fbgl_set_bg(fbgl_t* fb, uint32_t color) { +#ifdef DEBUG if (!fb || fb->fd == -1) { fprintf(stderr, "Error: framebuffer not initialized.\n"); return; } +#endif // DEBUG // Fill the entire framebuffer with the specified color - for (size_t i = 0; i < (fb->width * fb->height); ++i) { + for (int i = 0; i < fb->screen_size; i++) { fb->pixels[i] = color; } } void fbgl_put_pixel(int x, int y, uint32_t color, fbgl_t* fb) { +#ifdef DEBUG if (!fb || !fb->pixels) { fprintf(stderr, "Error: framebuffer not initialized.\n"); return; @@ -303,8 +305,9 @@ void fbgl_put_pixel(int x, int y, uint32_t color, fbgl_t* fb) if (x < 0 || x >= fb->width || y < 0 || y >= fb->height) { return; // Ignore out-of-bound coordinates } +#endif // DEBUG - size_t index = y * fb->width + x; + const size_t index = y * fb->width + x; fb->pixels[index] = color; } @@ -376,8 +379,6 @@ void fbgl_set_signal_handlers() } } -#endif - #ifdef FBGL_USE_FREETYPE FT_Library fbgl_freetype_init() { @@ -408,15 +409,15 @@ FT_Face fbgl_load_font(FT_Library library, const char* font_path, int font_size) } void fbgl_render_freetype_text(fbgl_t* fb, FT_Library library, FT_Face face, - const char* text, int x, int y) + const char* text, int32_t x, int32_t y) { while (*text) { FT_Load_Char(face, *text, FT_LOAD_RENDER); FT_Bitmap bitmap = face->glyph->bitmap; // Draw the bitmap to framebuffer - for (int j = 0; j < bitmap.rows; j++) { - for (int i = 0; i < bitmap.width; i++) { + for (int32_t j = 0; j < bitmap.rows; j++) { + for (int32_t i = 0; i < bitmap.width; i++) { if (bitmap.buffer[j * bitmap.width + i]) { // Check pixel is not empty fbgl_put_pixel(x + i, y + j, 0xFF0000, fb); // Draw white pixel @@ -429,26 +430,27 @@ void fbgl_render_freetype_text(fbgl_t* fb, FT_Library library, FT_Face face, } #endif // FBGL_USE_FREETYPE + void fbgl_draw_line(fbgl_point_t x, fbgl_point_t y, uint32_t color, fbgl_t* buffer) { - int dx = abs(y.x - x.x); - int dy = abs(y.y - x.y); + const int32_t dx = abs(y.x - x.x); + const int32_t dy = abs(y.y - x.y); - int sx = (x.x < y.x) ? 1 : -1; - int sy = (x.y < y.y) ? 1 : -1; + const int32_t sx = (x.x < y.x) ? 1 : -1; + const int32_t sy = (x.y < y.y) ? 1 : -1; - int err = dx - dy; + int32_t err = dx - dy; while (1) { // Set the pixel at the current position fbgl_put_pixel(x.x, x.y, color, buffer); // If we've reached the end point, break - if (x.x == y.x && x.y == y.y) + if (x.x >= y.x && x.y >= y.y) break; - int e2 = 2 * err; + const int32_t e2 = 2 * err; if (e2 > -dy) { err -= dy; @@ -490,9 +492,9 @@ void fbgl_draw_rectangle_filled(fbgl_point_t top_left, fbgl_point_t bottom_right, uint32_t color, fbgl_t* fb) { - for (int y = top_left.y; y < bottom_right.y; y++) { + for (int32_t y = top_left.y; y < bottom_right.y; y++) { // Manually set each pixel in the row - for (int x = top_left.x; x < bottom_right.x; x++) { + for (int32_t x = top_left.x; x < bottom_right.x; x++) { fbgl_put_pixel(x, y, color, fb); } } @@ -602,7 +604,7 @@ void fbgl_destroy_texture(fbgl_tga_texture_t* texture) } } -void fbgl_draw_texture(fbgl_t* fb, fbgl_tga_texture_t* texture, int x, int y) +void fbgl_draw_texture(fbgl_t* fb, fbgl_tga_texture_t const* texture, int32_t x, int32_t y) { if (!fb || !texture || !texture->data) { return; @@ -626,6 +628,24 @@ void fbgl_draw_texture(fbgl_t* fb, fbgl_tga_texture_t* texture, int x, int y) } } } + +uint32_t fb_get_width(fbgl_t const* fb) +{ + return fb->width; +} + +uint32_t fb_get_height(fbgl_t const* fb) +{ + return fb->height; +} + +uint32_t* fb_get_data(fbgl_t const* fb) +{ + return fb->pixels; +} + +#endif // FBGL_IMPLEMENTATION + #ifdef __cplusplus } // extern "C" #endif |