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Support use of custom fonts in miniui

Browse source 
Bug: 29547343
Change-Id: I398160c85daac90ffab2fa9bb2e96795b9e9885a
(cherry picked from commit 35fff61b1c)
This commit is contained in:
Damien Bargiacchi 2016-08-11 15:57:03 -07:00 committed by Tao Bao
parent b76960c984
commit d5d34d70a5
5 changed files with 84 additions and 66 deletions
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8
minui/font_10x18.h
View file

@ -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,

104
minui/graphics.cpp
View file

@ -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->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 @@ 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 +264,51 @@ unsigned int gr_get_height(GRSurface* surface) {
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

16
minui/minui.h
View file

@ -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);

10
screen_ui.cpp
View file

@ -248,7 +248,7 @@ void ScreenRecoveryUI::DrawHorizontalRule(int* y) {
}
void ScreenRecoveryUI::DrawTextLine(int x, int* y, const char* line, bool bold) {
gr_text(x, *y, line, bold);
gr_text(gr_sys_font(), x, *y, line, bold);
*y += char_height_ + 4;
}
@ -304,10 +304,10 @@ void ScreenRecoveryUI::draw_screen_locked() {
gr_fill(0, y - 2, gr_fb_width(), y + char_height_ + 2);
// Bold white text for the selected item.
SetColor(MENU_SEL_FG);
gr_text(4, y, menu_[i], true);
gr_text(gr_sys_font(), 4, y, menu_[i], true);
SetColor(MENU);
} else {
gr_text(4, y, menu_[i], false);
gr_text(gr_sys_font(), 4, y, menu_[i], false);
}
y += char_height_ + 4;
}
@ -323,7 +323,7 @@ void ScreenRecoveryUI::draw_screen_locked() {
for (int ty = gr_fb_height() - char_height_;
ty >= y && count < text_rows_;
ty -= char_height_, ++count) {
gr_text(0, ty, text_[row], false);
gr_text(gr_sys_font(), 0, ty, text_[row], false);
--row;
if (row < 0) row = text_rows_ - 1;
}
@ -442,7 +442,7 @@ void ScreenRecoveryUI::Init() {
density_ = static_cast<float>(android::base::GetIntProperty("ro.sf.lcd_density", 160)) / 160.f;
is_large_ = gr_fb_height() > PixelsFromDp(800);
gr_font_size(&char_width_, &char_height_);
gr_font_size(gr_sys_font(), &char_width_, &char_height_);
text_rows_ = gr_fb_height() / char_height_;
text_cols_ = gr_fb_width() / char_width_;

12
wear_ui.cpp
View file

@ -177,7 +177,7 @@ void WearRecoveryUI::draw_screen_locked()
// items don't fit on the screen.
if (menu_items > menu_end - menu_start) {
sprintf(cur_selection_str, "Current item: %d/%d", menu_sel + 1, menu_items);
gr_text(x+4, y, cur_selection_str, 1);
gr_text(gr_sys_font(), x+4, y, cur_selection_str, 1);
y += char_height_+4;
}
@ -192,10 +192,10 @@ void WearRecoveryUI::draw_screen_locked()
gr_fill(x, y-2, gr_fb_width()-x, y+char_height_+2);
// white text of selected item
SetColor(MENU_SEL_FG);
if (menu[i][0]) gr_text(x+4, y, menu[i], 1);
if (menu[i][0]) gr_text(gr_sys_font(), x+4, y, menu[i], 1);
SetColor(MENU);
} else {
if (menu[i][0]) gr_text(x+4, y, menu[i], 0);
} else if (menu[i][0]) {
gr_text(gr_sys_font(), x+4, y, menu[i], 0);
}
y += char_height_+4;
}
@ -216,7 +216,7 @@ void WearRecoveryUI::draw_screen_locked()
for (int ty = gr_fb_height() - char_height_ - outer_height;
ty > y+2 && count < text_rows;
ty -= char_height_, ++count) {
gr_text(x+4, ty, text[row], 0);
gr_text(gr_sys_font(), x+4, ty, text[row], 0);
--row;
if (row < 0) row = text_rows-1;
}
@ -285,7 +285,7 @@ void WearRecoveryUI::Init()
{
gr_init();
gr_font_size(&char_width_, &char_height_);
gr_font_size(gr_sys_font(), &char_width_, &char_height_);
text_col = text_row = 0;
text_rows = (gr_fb_height()) / char_height_;