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/*
* video.c
*
* Written by
* Mike Dawson <mike@gp2x.org>
* Mustafa 'GnoStiC' Tufan <mtufan@gmail.com>
*
* This file is part of VICE, the Versatile Commodore Emulator.
* See README for copyright notice.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA.
*
*/
#include "vice.h"
#include <stdio.h>
#include "minimal.h"
#include "ui_gp2x.h"
#include "uitext_gp2x.h"
#include "prefs_gp2x.h"
#include "vkeyboard_gp2x.h"
#include "videoarch.h"
#include "palette.h"
#include "machine.h"
#include "input_gp2x.h"
#include "vsync.h"
#include "interrupt.h"
int machine_ui_done=0;
int vicii_setup_delay=0;
extern volatile unsigned short *gp2x_memregs;
video_canvas_t *current_canvas;
int xoffset, yoffset;
int xoffset_centred, yoffset_centred;
int xoffset_uncentred, yoffset_uncentred;
int video_init()
{
return 0;
}
int video_init_cmdline_options()
{
return 0;
}
void video_shutdown()
{
}
video_canvas_t *video_canvas_create(video_canvas_t *canvas, unsigned int *width, unsigned int *height, int mapped)
{
static int vicii_setup = 0;
display_width = 320;
canvas->depth = 8;
canvas->width = 320;
canvas->height = 240;
video_canvas_set_palette(canvas, canvas->palette);
if (vicii_setup_delay==1)
{
if (!vicii_setup) canvas->width=0;
vicii_setup=1;
}
tvout_pal=1;
if (gp2x_memregs[0x2800>>1]&0x100) {
tvout=1;
hwscaling=1;
if (gp2x_memregs[0x2818>>1]==239) tvout_pal=0;
//printf("\n0x2818=%d\n", gp2x_memregs[0x2818>>1]);
display_set();
}
current_canvas = canvas;
return canvas;
}
void video_canvas_destroy(struct video_canvas_s *canvas)
{
}
void video_arch_canvas_init(struct video_canvas_s *canvas)
{
canvas->video_draw_buffer_callback=NULL;
}
static void pause_trap(WORD addr, void *data)
{
vsync_suspend_speed_eval();
while (prefs_open) {
usleep (20000);
gp2x_poll_input();
draw_prefs(gp2x_screen8);
gp2x_video_flip();
}
}
void video_canvas_refresh(struct video_canvas_s *canvas,
unsigned int xs, unsigned int ys,
unsigned int xi, unsigned int yi,
unsigned int w, unsigned int h)
{
BYTE *source;
register unsigned int x, y;
register int buf_width;
register int xoff;
register int yoff;
if (canvas->width==0) return;
if (machine_ui_done==0) return;
if (xoffset_centred==0)
{
xoffset_centred = (canvas->draw_buffer->draw_buffer_width-320)/2;
xoffset = xoffset_centred;
}
if (yoffset_centred==0)
{
yoffset_centred = (canvas->draw_buffer->draw_buffer_height-240)/2;
yoffset = yoffset_centred;
}
xoff = xoffset;
yoff = yoffset;
source = canvas->draw_buffer->draw_buffer;
buf_width = canvas->draw_buffer->draw_buffer_width/4;
register unsigned long *source32 = (unsigned long *)source;
register unsigned long *screen32 = (unsigned long *)gp2x_screen8;
if (hwscaling) {
for (y=272; y--;) {
for (x=384/4; x--;) {
screen32[(y*(384/4))+x] = source32[((y+(yoff-16))*(buf_width))+x+((xoff-32)/4)];
}
}
} else {
for (y=240; y--;) {
for (x=320/4; x--;) {
screen32[(y*(320/4))+x] = source32[((y+yoff)*(buf_width))+x+(xoff/4)];
}
}
}
gp2x_poll_input();
if (stats_open) draw_stats(gp2x_screen8);
if (prefs_open) { interrupt_maincpu_trigger_trap(pause_trap, 0);
} else if (vkeyb_open) draw_vkeyb(gp2x_screen8);
gp2x_video_flip();
}
int video_canvas_set_palette(struct video_canvas_s *canvas, struct palette_s *palette)
{
// fprintf(stderr, "calling %s\n", __func__);
unsigned int i;
for(i=0; i<palette->num_entries; i++) {
gp2x_palette[i*2] = ((palette->entries[i].green)<<8) | (palette->entries[i].blue);
gp2x_palette[i*2+1] = palette->entries[i].red;
}
gp2x_video_setpalette();
return 0;
}
int video_arch_resources_init()
{
return 0;
}
void video_canvas_resize(struct video_canvas_s *canvas, unsigned int width, unsigned int height)
{
}
void video_arch_resources_shutdown()
{
}
void video_add_handlers()
{
}
void fullscreen_capability()
{
}
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