diff options
Diffstat (limited to 'minui')
| -rw-r--r-- | minui/font_10x18.h | 8 | ||||
| -rw-r--r-- | minui/graphics.cpp | 114 | ||||
| -rw-r--r-- | minui/minui.h | 16 |
3 files changed, 82 insertions, 56 deletions
diff --git a/minui/font_10x18.h b/minui/font_10x18.h index 29d705344..30dfb9c56 100644 --- a/minui/font_10x18.h +++ b/minui/font_10x18.h @@ -1,14 +1,14 @@ struct { unsigned width; unsigned height; - unsigned cwidth; - unsigned cheight; + unsigned char_width; + unsigned char_height; unsigned char rundata[2973]; } font = { .width = 960, .height = 18, - .cwidth = 10, - .cheight = 18, + .char_width = 10, + .char_height = 18, .rundata = { 0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x7f,0x55,0x82,0x06,0x82,0x02,0x82,0x10,0x82, 0x11,0x83,0x08,0x82,0x0a,0x82,0x04,0x82,0x46,0x82,0x08,0x82,0x07,0x84,0x06, diff --git a/minui/graphics.cpp b/minui/graphics.cpp index c0eea9e38..ab56a6fd6 100644 --- a/minui/graphics.cpp +++ b/minui/graphics.cpp @@ -35,12 +35,6 @@ #include "minui.h" #include "graphics.h" -struct GRFont { - GRSurface* texture; - int cwidth; - int cheight; -}; - static GRFont* gr_font = NULL; static minui_backend* gr_backend = NULL; @@ -60,15 +54,20 @@ static bool outside(int x, int y) return x < 0 || x >= gr_draw->width || y < 0 || y >= gr_draw->height; } -int gr_measure(const char *s) +const GRFont* gr_sys_font() +{ + return gr_font; +} + +int gr_measure(const GRFont* font, const char *s) { - return gr_font->cwidth * strlen(s); + return font->char_width * strlen(s); } -void gr_font_size(int *x, int *y) +void gr_font_size(const GRFont* font, int *x, int *y) { - *x = gr_font->cwidth; - *y = gr_font->cheight; + *x = font->char_width; + *y = font->char_height; } static void text_blend(unsigned char* src_p, int src_row_bytes, @@ -103,34 +102,32 @@ static void text_blend(unsigned char* src_p, int src_row_bytes, } } -void gr_text(int x, int y, const char *s, bool bold) +void gr_text(const GRFont* font, int x, int y, const char *s, bool bold) { - GRFont* font = gr_font; - if (!font->texture || gr_current_a == 0) return; - bold = bold && (font->texture->height != font->cheight); + bold = bold && (font->texture->height != font->char_height); x += overscan_offset_x; y += overscan_offset_y; unsigned char ch; while ((ch = *s++)) { - if (outside(x, y) || outside(x+font->cwidth-1, y+font->cheight-1)) break; + if (outside(x, y) || outside(x+font->char_width-1, y+font->char_height-1)) break; if (ch < ' ' || ch > '~') { ch = '?'; } - unsigned char* src_p = font->texture->data + ((ch - ' ') * font->cwidth) + - (bold ? font->cheight * font->texture->row_bytes : 0); + unsigned char* src_p = font->texture->data + ((ch - ' ') * font->char_width) + + (bold ? font->char_height * font->texture->row_bytes : 0); unsigned char* dst_p = gr_draw->data + y*gr_draw->row_bytes + x*gr_draw->pixel_bytes; text_blend(src_p, font->texture->row_bytes, dst_p, gr_draw->row_bytes, - font->cwidth, font->cheight); + font->char_width, font->char_height); - x += font->cwidth; + x += font->char_width; } } @@ -267,40 +264,59 @@ unsigned int gr_get_height(GRSurface* surface) { return surface->height; } +int gr_init_font(const char* name, GRFont** dest) { + GRFont* font = reinterpret_cast<GRFont*>(calloc(1, sizeof(*gr_font))); + if (font == nullptr) { + return -1; + } + + int res = res_create_alpha_surface(name, &(font->texture)); + if (res < 0) { + free(font); + return res; + } + + // The font image should be a 96x2 array of character images. The + // columns are the printable ASCII characters 0x20 - 0x7f. The + // top row is regular text; the bottom row is bold. + font->char_width = font->texture->width / 96; + font->char_height = font->texture->height / 2; + + *dest = font; + + return 0; +} + static void gr_init_font(void) { - gr_font = reinterpret_cast<GRFont*>(calloc(sizeof(*gr_font), 1)); - - int res = res_create_alpha_surface("font", &(gr_font->texture)); + int res = gr_init_font("font", &gr_font); if (res == 0) { - // The font image should be a 96x2 array of character images. The - // columns are the printable ASCII characters 0x20 - 0x7f. The - // top row is regular text; the bottom row is bold. - gr_font->cwidth = gr_font->texture->width / 96; - gr_font->cheight = gr_font->texture->height / 2; - } else { - printf("failed to read font: res=%d\n", res); - - // fall back to the compiled-in font. - gr_font->texture = reinterpret_cast<GRSurface*>(malloc(sizeof(*gr_font->texture))); - gr_font->texture->width = font.width; - gr_font->texture->height = font.height; - gr_font->texture->row_bytes = font.width; - gr_font->texture->pixel_bytes = 1; - - unsigned char* bits = reinterpret_cast<unsigned char*>(malloc(font.width * font.height)); - gr_font->texture->data = reinterpret_cast<unsigned char*>(bits); - - unsigned char data; - unsigned char* in = font.rundata; - while((data = *in++)) { - memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f); - bits += (data & 0x7f); - } + return; + } + + printf("failed to read font: res=%d\n", res); + - gr_font->cwidth = font.cwidth; - gr_font->cheight = font.cheight; + // fall back to the compiled-in font. + gr_font = reinterpret_cast<GRFont*>(calloc(1, sizeof(*gr_font))); + gr_font->texture = reinterpret_cast<GRSurface*>(malloc(sizeof(*gr_font->texture))); + gr_font->texture->width = font.width; + gr_font->texture->height = font.height; + gr_font->texture->row_bytes = font.width; + gr_font->texture->pixel_bytes = 1; + + unsigned char* bits = reinterpret_cast<unsigned char*>(malloc(font.width * font.height)); + gr_font->texture->data = reinterpret_cast<unsigned char*>(bits); + + unsigned char data; + unsigned char* in = font.rundata; + while((data = *in++)) { + memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f); + bits += (data & 0x7f); } + + gr_font->char_width = font.char_width; + gr_font->char_height = font.char_height; } #if 0 diff --git a/minui/minui.h b/minui/minui.h index fb0bbe10c..d30426dc8 100644 --- a/minui/minui.h +++ b/minui/minui.h @@ -33,6 +33,12 @@ struct GRSurface { unsigned char* data; }; +struct GRFont { + GRSurface* texture; + int char_width; + int char_height; +}; + int gr_init(); void gr_exit(); @@ -45,10 +51,14 @@ void gr_fb_blank(bool blank); void gr_clear(); // clear entire surface to current color void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a); void gr_fill(int x1, int y1, int x2, int y2); -void gr_text(int x, int y, const char *s, bool bold); + void gr_texticon(int x, int y, GRSurface* icon); -int gr_measure(const char *s); -void gr_font_size(int *x, int *y); + +const GRFont* gr_sys_font(); +int gr_init_font(const char* name, GRFont** dest); +void gr_text(const GRFont* font, int x, int y, const char *s, bool bold); +int gr_measure(const GRFont* font, const char *s); +void gr_font_size(const GRFont* font, int *x, int *y); void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy); unsigned int gr_get_width(GRSurface* surface); |