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#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <math.h>
#include <wchar.h>
#include <inttypes.h>
#include <sys/ioctl.h>
#include <linux/fb.h>
#include <pixman.h>
#include "vt.h"
#include "fbtools.h"
#include "readers.h"
#include "fb-gui.h"
static int ys = 3;
static int xs = 10;
/* ---------------------------------------------------------------------- */
/* shadow framebuffer -- internals */
static unsigned char **shadow;
static unsigned int swidth,sheight;
static cairo_t *context;
static cairo_surface_t *surface;
static pixman_image_t *pixman;
static unsigned char *framebuffer;
static cairo_font_extents_t extents;
/* ---------------------------------------------------------------------- */
/* shadow framebuffer -- management interface */
void shadow_render(gfxstate *gfx)
{
static pixman_image_t *gfxfb;
if (!console_visible)
return;
gfxfb = pixman_image_create_bits(gfx->fmt->pixman,
gfx->hdisplay,
gfx->vdisplay,
(void*)gfx->mem,
gfx->stride);
pixman_image_composite(PIXMAN_OP_SRC, pixman, NULL, gfxfb,
0, 0,
0, 0,
0, 0,
gfx->hdisplay, gfx->vdisplay);
pixman_image_unref(gfxfb);
if (gfx->flush_display)
gfx->flush_display(false);
}
void shadow_clear_lines(int first, int last)
{
cairo_rectangle(context, 0, first, swidth, last - first + 1);
cairo_set_source_rgb(context, 0, 0, 0);
cairo_fill(context);
}
void shadow_clear(void)
{
shadow_clear_lines(0, sheight-1);
}
void shadow_init(gfxstate *gfx)
{
int i;
/* init shadow fb */
swidth = gfx->hdisplay;
sheight = gfx->vdisplay;
shadow = malloc(sizeof(unsigned char*) * sheight);
framebuffer = malloc(swidth*sheight*4);
for (i = 0; i < sheight; i++)
shadow[i] = framebuffer + i*swidth*4;
surface = cairo_image_surface_create_for_data(framebuffer,
CAIRO_FORMAT_RGB24,
swidth, sheight,
swidth * 4);
context = cairo_create(surface);
pixman = pixman_image_create_bits(PIXMAN_x8r8g8b8, swidth, sheight,
(void*)framebuffer, swidth * 4);
shadow_clear();
}
void shadow_fini(void)
{
if (!shadow)
return;
free(shadow);
free(framebuffer);
}
/* ---------------------------------------------------------------------- */
/* shadow framebuffer -- drawing interface */
void shadow_draw_line(int x1, int x2, int y1,int y2)
{
cairo_set_source_rgb(context, 1, 1, 1);
cairo_set_line_width(context, 1);
cairo_move_to(context, x1 + 0.5, y1 + 0.5);
cairo_line_to(context, x2 + 0.5, y2 + 0.5);
cairo_stroke(context);
}
void shadow_draw_rect(int x1, int x2, int y1, int y2)
{
cairo_set_source_rgb(context, 1, 1, 1);
cairo_set_line_width(context, 1);
cairo_move_to(context, x1 + 0.5, y1 + 0.5);
cairo_line_to(context, x2 + 0.5, y1 + 0.5);
cairo_line_to(context, x2 + 0.5, y2 + 0.5);
cairo_line_to(context, x1 + 0.5, y2 + 0.5);
cairo_line_to(context, x1 + 0.5, y1 + 0.5);
cairo_stroke(context);
}
void shadow_composite_image(struct ida_image *img,
int xoff, int yoff, int weight)
{
if (weight == 100) {
pixman_image_composite(PIXMAN_OP_SRC, img->p, NULL, pixman,
0, 0, 0, 0,
xoff, yoff,
img->i.width, img->i.height);
} else {
pixman_color_t color = {
.alpha = weight * 0xffff / 100,
};
pixman_image_t *mask = pixman_image_create_solid_fill(&color);
pixman_image_composite(PIXMAN_OP_OVER, img->p, mask, pixman,
0, 0, 0, 0,
xoff, yoff,
img->i.width, img->i.height);
pixman_image_unref(mask);
}
}
void shadow_darkify(int x1, int x2, int y1,int y2, int percent)
{
cairo_rectangle(context, x1, y1,
x2 - x1 + 1,
y2 - y1 + 1);
cairo_set_source_rgba(context, 0, 0, 0, 1 - (percent * 0.01));
cairo_fill(context);
}
int shadow_draw_string(int x, int y, char *str, int align)
{
cairo_text_extents_t te;
cairo_text_extents(context, str, &te);
switch(align) {
case -1: /* left */
break;
case 0: /* center */
x -= te.x_advance / 2;
break;
case 1: /* right */
x -= te.x_advance;
break;
}
cairo_move_to(context, x, y + extents.ascent);
cairo_show_text(context, str);
return 0;
}
void shadow_draw_text_box(int x, int y, int percent, char *lines[], unsigned int count)
{
unsigned int i, len, max, x1, x2, y1, y2;
if (!console_visible)
return;
max = 0;
for (i = 0; i < count; i++) {
len = strlen(lines[i]);
if (max < len)
max = len;
}
x1 = x;
x2 = x + max * extents.max_x_advance;
y1 = y;
y2 = y + count * extents.height;
x += xs; x2 += 2*xs;
y += ys; y2 += 2*ys;
shadow_darkify(x1, x2, y1, y2, percent);
shadow_draw_rect(x1, x2, y1, y2);
for (i = 0; i < count; i++) {
shadow_draw_string(x, y, lines[i], -1);
y += extents.height;
}
}
cairo_font_extents_t *shadow_font_init(char *font)
{
char fontname[64];
int fontsize, rc;
rc = sscanf(font, "%63[^-]-%d", fontname, &fontsize);
if (rc != 2) {
rc = sscanf(font, "%63[^:]:size=%d", fontname, &fontsize);
if (rc != 2) {
strncpy(fontname, font, sizeof(fontname));
fontsize = 16;
}
}
cairo_select_font_face(context, fontname,
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(context, fontsize);
cairo_font_extents(context, &extents);
return &extents;
}
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