Support use of custom fonts in miniui
Bug: 29547343
Change-Id: I398160c85daac90ffab2fa9bb2e96795b9e9885a
diff --git a/minui/font_10x18.h b/minui/font_10x18.h
index 29d7053..30dfb9c 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 c0eea9e..43ec83f 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 @@
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->cwidth * strlen(s);
+ return gr_font;
}
-void gr_font_size(int *x, int *y)
+int gr_measure(const GRFont* font, const char *s)
{
- *x = gr_font->cwidth;
- *y = gr_font->cheight;
+ return font->char_width * strlen(s);
+}
+
+void gr_font_size(const GRFont* font, int *x, int *y)
+{
+ *x = font->char_width;
+ *y = font->char_height;
}
static void text_blend(unsigned char* src_p, int src_row_bytes,
@@ -103,34 +102,32 @@
}
}
-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 +264,51 @@
return surface->height;
}
+int gr_init_font(const char* name, GRFont* dest) {
+ int res = res_create_alpha_surface(name, &(dest->texture));
+ if (res < 0) {
+ 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.
+ dest->char_width = dest->texture->width / 96;
+ dest->char_height = dest->texture->height / 2;
+
+ 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);
- }
-
- gr_font->cwidth = font.cwidth;
- gr_font->cheight = font.cheight;
+ return;
}
+
+ 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);
+ }
+
+ 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 fb0bbe1..23156b6 100644
--- a/minui/minui.h
+++ b/minui/minui.h
@@ -33,6 +33,12 @@
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_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);