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/* |
/* |
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* Copyright (C) 2003-2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
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* |
* |
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* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
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* SUCH DAMAGE. |
* SUCH DAMAGE. |
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* |
* |
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* |
* |
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* $Id: dev_fb.c,v 1.110 2005/11/13 00:14:08 debug Exp $ |
* $Id: dev_fb.c,v 1.121 2006/07/08 12:30:02 debug Exp $ |
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* |
* |
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* Generic framebuffer device. |
* Generic framebuffer device. |
31 |
* |
* |
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* DECstation Maxine, 1024x768 8-bit color |
* DECstation Maxine, 1024x768 8-bit color |
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* HPC (mips, arm, ..) framebuffer |
* HPC (mips, arm, ..) framebuffer |
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* Playstation 2 (24-bit color) |
* Playstation 2 (24-bit color) |
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* generic (any resolution, several bit depths possible) |
* Generic (any resolution, several bit depths possible, useful for |
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* testmachines) |
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* |
* |
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* |
* |
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* TODO: There is still a bug when redrawing the cursor. The underlying |
* TODO: This should actually be independent of X11, but that |
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* image is moved 1 pixel (?), or something like that. |
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* |
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* TODO: This should actually be independant of X11, but that |
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* might be too hard to do right now. |
* might be too hard to do right now. |
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* |
* |
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* TODO: playstation 2 pixels are stored in another format, actually |
* TODO: playstation 2 pixels are stored in another format, actually |
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#endif |
#endif |
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#define FB_TICK_SHIFT 18 |
#define FB_TICK_SHIFT 19 |
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/* #define FB_DEBUG */ |
/* #define FB_DEBUG */ |
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} |
} |
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static void set_title(struct vfb_data *d) |
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{ |
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snprintf(d->title, sizeof(d->title),"GXemul: %ix%ix%i %s framebuffer", |
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d->visible_xsize, d->visible_ysize, d->bit_depth, d->name); |
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d->title[sizeof(d->title)-1] = '\0'; |
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} |
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/* |
/* |
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* dev_fb_resize(): |
* dev_fb_resize(): |
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* |
* |
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* Resize a framebuffer window. (This functionality is probably a bit buggy, |
* Resize a framebuffer window. (This functionality is probably a bit buggy, |
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* because I didn't think of including it from the start.) |
* because I didn't think of including it from the start.) |
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* |
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* SUPER-IMPORTANT: Anyone who resizes a framebuffer by calling this function |
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* must also clear all dyntrans address translations manually, in all cpus |
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* which might have access to the framebuffer! |
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*/ |
*/ |
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void dev_fb_resize(struct vfb_data *d, int new_xsize, int new_ysize) |
void dev_fb_resize(struct vfb_data *d, int new_xsize, int new_ysize) |
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{ |
{ |
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return; |
return; |
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} |
} |
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if (new_xsize < 10 || new_ysize < 10) { |
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fatal("dev_fb_resize(): size too small.\n"); |
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exit(1); |
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} |
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new_bytes_per_line = new_xsize * d->bit_depth / 8; |
new_bytes_per_line = new_xsize * d->bit_depth / 8; |
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size = new_ysize * new_bytes_per_line; |
size = new_ysize * new_bytes_per_line; |
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d->framebuffer = new_framebuffer; |
d->framebuffer = new_framebuffer; |
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d->framebuffer_size = size; |
d->framebuffer_size = size; |
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if (new_xsize > d->x11_xsize || new_ysize > d->x11_ysize) { |
if (new_xsize > d->xsize || new_ysize > d->ysize) { |
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d->update_x1 = d->update_y1 = 0; |
d->update_x1 = d->update_y1 = 0; |
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d->update_x2 = new_xsize - 1; |
d->update_x2 = new_xsize - 1; |
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d->update_y2 = new_ysize - 1; |
d->update_y2 = new_ysize - 1; |
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} |
} |
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d->bytes_per_line = new_bytes_per_line; |
d->bytes_per_line = new_bytes_per_line; |
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d->x11_xsize = d->visible_xsize = new_xsize; |
d->xsize = d->visible_xsize = new_xsize; |
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d->x11_ysize = d->visible_ysize = new_ysize; |
d->ysize = d->visible_ysize = new_ysize; |
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d->x11_xsize = d->xsize / d->vfb_scaledown; |
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d->x11_ysize = d->ysize / d->vfb_scaledown; |
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184 |
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memory_device_update_data(d->memory, d, d->framebuffer); |
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set_title(d); |
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#ifdef WITH_X11 |
#ifdef WITH_X11 |
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if (d->fb_window != NULL) |
if (d->fb_window != NULL) { |
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x11_fb_resize(d->fb_window, new_xsize, new_ysize); |
x11_fb_resize(d->fb_window, new_xsize, new_ysize); |
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x11_set_standard_properties(d->fb_window, d->title); |
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} |
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#endif |
#endif |
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} |
} |
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int x; |
int x; |
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char buf[8192 * 3]; |
char buf[8192 * 3]; |
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if (d->bit_depth == 24) |
if (d->bit_depth == 24) |
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for (x=0; x<linelen; x+=3) { |
for (x=0; x<linelen && x<sizeof(buf); |
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x += 3) { |
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buf[x] = fill_r; |
buf[x] = fill_r; |
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buf[x+1] = fill_g; |
buf[x+1] = fill_g; |
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buf[x+2] = fill_b; |
buf[x+2] = fill_b; |
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} |
} |
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else |
else { |
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printf("TODO: fill for non-24-bit" |
fatal("[ fb: TODO: fill for non-24-bit" |
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" modes\n"); |
" modes ]\n"); |
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} |
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memmove(d->framebuffer + dest_ofs, buf, |
memmove(d->framebuffer + dest_ofs, buf, |
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linelen); |
linelen); |
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318 |
#ifdef WITH_X11 |
#ifdef WITH_X11 |
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#define macro_put_pixel() { \ |
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/* Combine the color into an X11 long and display it: */ \ |
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/* TODO: construct color in a more portable way: */ \ |
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switch (d->fb_window->x11_screen_depth) { \ |
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case 24: \ |
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if (d->fb_window->fb_ximage->byte_order) \ |
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color = (b << 16) + (g << 8) + r; \ |
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else \ |
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color = (r << 16) + (g << 8) + b; \ |
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break; \ |
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case 16: \ |
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r >>= 3; g >>= 2; b >>= 3; \ |
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if (d->fb_window->fb_ximage->byte_order) { \ |
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/* Big endian 16-bit X server: */ \ |
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static int first = 1; \ |
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if (first) { \ |
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fprintf(stderr, "\n*** Please report " \ |
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"to the author whether 16-bit X11 " \ |
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"colors are rendered correctly or " \ |
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"not!\n\n"); \ |
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first = 0; \ |
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} \ |
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color = (b << 11) + (g << 5) + r; \ |
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} else { \ |
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/* Little endian (eg PC) X servers: */ \ |
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color = (r << 11) + (g << 5) + b; \ |
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} \ |
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break; \ |
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case 15: \ |
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r >>= 3; g >>= 3; b >>= 3; \ |
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if (d->fb_window->fb_ximage->byte_order) { \ |
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/* Big endian 15-bit X server: */ \ |
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static int first = 1; \ |
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if (first) { \ |
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fprintf(stderr, "\n*** Please report " \ |
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"to the author whether 15-bit X11 " \ |
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"colors are rendered correctly or " \ |
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"not!\n\n"); \ |
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first = 0; \ |
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} \ |
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color = (b << 10) + (g << 5) + r; \ |
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} else { \ |
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/* Little endian (eg PC) X servers: */ \ |
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color = (r << 10) + (g << 5) + b; \ |
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} \ |
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break; \ |
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default: \ |
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color = d->fb_window->x11_graycolor[15 * (r + g + b) \ |
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/ (255 * 3)].pixel; \ |
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} \ |
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if (x>=0 && x<d->x11_xsize && y>=0 && y<d->x11_ysize) \ |
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XPutPixel(d->fb_window->fb_ximage, x, y, color); \ |
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} |
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#else |
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/* If not WITH_X11: */ |
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#define macro_put_pixel() { } |
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#endif |
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/* |
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* update_framebuffer(): |
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* |
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* The framebuffer memory has been updated. This function tries to make |
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* sure that the XImage is also updated (1 or more pixels). |
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*/ |
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void update_framebuffer(struct vfb_data *d, int addr, int len) |
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{ |
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int x, y, pixel, npixels; |
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long color_r, color_g, color_b; |
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#ifdef WITH_X11 |
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long color; |
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#endif |
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int scaledown = d->vfb_scaledown; |
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int scaledownXscaledown = 1; |
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if (scaledown == 1) { |
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/* Which framebuffer pixel does addr correspond to? */ |
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pixel = addr * 8 / d->bit_depth; |
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y = pixel / d->xsize; |
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x = pixel % d->xsize; |
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/* How many framebuffer pixels? */ |
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npixels = len * 8 / d->bit_depth; |
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if (npixels == 0) |
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npixels = 1; |
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if (d->bit_depth < 8) { |
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for (pixel=0; pixel<npixels; pixel++) { |
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int fb_addr, c, r, g, b; |
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color_r = color_g = color_b = 0; |
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fb_addr = (y * d->xsize + x) * d->bit_depth; |
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/* fb_addr is now which _bit_ in |
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the framebuffer */ |
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c = d->framebuffer[fb_addr >> 3]; |
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fb_addr &= 7; |
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/* HPC is reverse: */ |
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if (d->vfb_type == VFB_HPC) |
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fb_addr = 8 - d->bit_depth - fb_addr; |
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c = (c >> fb_addr) & ((1<<d->bit_depth) - 1); |
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/* c <<= (8 - d->bit_depth); */ |
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r = d->rgb_palette[c*3 + 0]; |
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g = d->rgb_palette[c*3 + 1]; |
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b = d->rgb_palette[c*3 + 2]; |
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macro_put_pixel(); |
#define REDRAW redraw_fallback |
321 |
x++; |
#include "fb_include.c" |
322 |
} |
#undef REDRAW |
323 |
} else if (d->bit_depth == 8) { |
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for (pixel=0; pixel<npixels; pixel++) { |
#define FB_24 |
325 |
int fb_addr, c, r, g, b; |
#define REDRAW redraw_24 |
326 |
color_r = color_g = color_b = 0; |
#include "fb_include.c" |
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#undef REDRAW |
328 |
fb_addr = y * d->xsize + x; |
#undef FB_24 |
329 |
/* fb_addr is now which byte in framebuffer */ |
#define FB_16 |
330 |
c = d->framebuffer[fb_addr]; |
#define REDRAW redraw_16 |
331 |
r = d->rgb_palette[c*3 + 0]; |
#include "fb_include.c" |
332 |
g = d->rgb_palette[c*3 + 1]; |
#undef FB_16 |
333 |
b = d->rgb_palette[c*3 + 2]; |
#undef REDRAW |
334 |
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#define FB_15 |
335 |
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#define REDRAW redraw_15 |
336 |
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#include "fb_include.c" |
337 |
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#undef REDRAW |
338 |
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#undef FB_15 |
339 |
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340 |
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#define FB_BO |
341 |
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#define FB_24 |
342 |
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#define REDRAW redraw_24_bo |
343 |
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#include "fb_include.c" |
344 |
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#undef REDRAW |
345 |
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#undef FB_24 |
346 |
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#define FB_16 |
347 |
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#define REDRAW redraw_16_bo |
348 |
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#include "fb_include.c" |
349 |
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#undef FB_16 |
350 |
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#undef REDRAW |
351 |
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#define FB_15 |
352 |
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#define REDRAW redraw_15_bo |
353 |
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#include "fb_include.c" |
354 |
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#undef REDRAW |
355 |
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#undef FB_15 |
356 |
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#undef FB_BO |
357 |
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358 |
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#define FB_SCALEDOWN |
359 |
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360 |
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#define REDRAW redraw_fallback_sd |
361 |
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#include "fb_include.c" |
362 |
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#undef REDRAW |
363 |
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364 |
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#define FB_24 |
365 |
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#define REDRAW redraw_24_sd |
366 |
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#include "fb_include.c" |
367 |
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#undef REDRAW |
368 |
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#undef FB_24 |
369 |
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#define FB_16 |
370 |
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#define REDRAW redraw_16_sd |
371 |
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#include "fb_include.c" |
372 |
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#undef FB_16 |
373 |
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#undef REDRAW |
374 |
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#define FB_15 |
375 |
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#define REDRAW redraw_15_sd |
376 |
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#include "fb_include.c" |
377 |
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#undef REDRAW |
378 |
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#undef FB_15 |
379 |
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380 |
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#define FB_BO |
381 |
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#define FB_24 |
382 |
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#define REDRAW redraw_24_bo_sd |
383 |
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#include "fb_include.c" |
384 |
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#undef REDRAW |
385 |
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#undef FB_24 |
386 |
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#define FB_16 |
387 |
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#define REDRAW redraw_16_bo_sd |
388 |
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#include "fb_include.c" |
389 |
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#undef FB_16 |
390 |
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#undef REDRAW |
391 |
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#define FB_15 |
392 |
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#define REDRAW redraw_15_bo_sd |
393 |
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#include "fb_include.c" |
394 |
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#undef REDRAW |
395 |
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#undef FB_15 |
396 |
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#undef FB_BO |
397 |
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398 |
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void (*redraw[2 * 4 * 2])(struct vfb_data *, int, int) = { |
399 |
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redraw_fallback, redraw_fallback, |
400 |
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redraw_15, redraw_15_bo, |
401 |
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redraw_16, redraw_16_bo, |
402 |
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redraw_24, redraw_24_bo, |
403 |
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redraw_fallback_sd, redraw_fallback_sd, |
404 |
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redraw_15_sd, redraw_15_bo_sd, |
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redraw_16_sd, redraw_16_bo_sd, |
406 |
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redraw_24_sd, redraw_24_bo_sd }; |
407 |
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macro_put_pixel(); |
#endif /* WITH_X11 */ |
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x++; |
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} |
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} else { /* d->bit_depth > 8 */ |
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for (pixel=0; pixel<npixels; pixel++) { |
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int fb_addr, r, g, b; |
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color_r = color_g = color_b = 0; |
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fb_addr = (y * d->xsize + x) * d->bit_depth; |
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/* fb_addr is now which byte in framebuffer */ |
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/* > 8 bits color. */ |
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fb_addr >>= 3; |
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switch (d->bit_depth) { |
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case 24: |
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r = d->framebuffer[fb_addr]; |
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g = d->framebuffer[fb_addr + 1]; |
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b = d->framebuffer[fb_addr + 2]; |
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break; |
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/* TODO: copy to the scaledown code below */ |
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case 16: |
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if (d->vfb_type == VFB_HPC) { |
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b = d->framebuffer[fb_addr] + |
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(d->framebuffer[fb_addr+1] |
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<< 8); |
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if (d->color32k) { |
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r = b >> 11; |
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g = b >> 5; |
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r = r & 31; |
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g = (g & 31) * 2; |
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b = b & 31; |
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} else if (d->psp_15bit) { |
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int tmp; |
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r = (b >> 10) & 0x1f; |
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g = (b >> 5) & 0x1f; |
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b = b & 0x1f; |
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g <<= 1; |
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tmp = r; r = b; b = tmp; |
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} else { |
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r = (b >> 11) & 0x1f; |
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g = (b >> 5) & 0x3f; |
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b = b & 0x1f; |
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} |
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} else { |
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r = d->framebuffer[fb_addr] >> 3; |
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g = (d->framebuffer[fb_addr] << 5) + |
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(d->framebuffer[fb_addr + 1] >>5); |
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b = d->framebuffer[fb_addr + 1]&31; |
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} |
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r *= 8; |
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g *= 4; |
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b *= 8; |
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break; |
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default: |
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r = g = b = random() & 255; |
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} |
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macro_put_pixel(); |
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x++; |
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} |
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} |
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return; |
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} |
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/* scaledown > 1: */ |
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scaledown = d->vfb_scaledown; |
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scaledownXscaledown = scaledown * scaledown; |
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/* Which framebuffer pixel does addr correspond to? */ |
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pixel = addr * 8 / d->bit_depth; |
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y = pixel / d->xsize; |
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x = pixel % d->xsize; |
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/* How many framebuffer pixels? */ |
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npixels = len * 8 / d->bit_depth; |
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/* Which x11 pixel? */ |
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x /= scaledown; |
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y /= scaledown; |
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/* How many x11 pixels: */ |
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npixels /= scaledown; |
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if (npixels == 0) |
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npixels = 1; |
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if (d->bit_depth < 8) { |
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for (pixel=0; pixel<npixels; pixel++) { |
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int subx, suby, r, g, b; |
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color_r = color_g = color_b = 0; |
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for (suby=0; suby<scaledown; suby++) |
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for (subx=0; subx<scaledown; subx++) { |
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int fb_x, fb_y, fb_addr, c; |
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fb_x = x * scaledown + subx; |
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fb_y = y * scaledown + suby; |
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fb_addr = fb_y * d->xsize + fb_x; |
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fb_addr = fb_addr * d->bit_depth; |
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/* fb_addr is now which _bit_ in |
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the framebuffer */ |
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c = d->framebuffer[fb_addr >> 3]; |
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fb_addr &= 7; |
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/* HPC is reverse: */ |
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if (d->vfb_type == VFB_HPC) |
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fb_addr = 8 - d->bit_depth - fb_addr; |
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c = (c >> fb_addr) & ((1<<d->bit_depth) - 1); |
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/* c <<= (8 - d->bit_depth); */ |
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|
r = d->rgb_palette[c*3 + 0]; |
|
|
g = d->rgb_palette[c*3 + 1]; |
|
|
b = d->rgb_palette[c*3 + 2]; |
|
|
|
|
|
color_r += r; |
|
|
color_g += g; |
|
|
color_b += b; |
|
|
} |
|
|
|
|
|
r = color_r / scaledownXscaledown; |
|
|
g = color_g / scaledownXscaledown; |
|
|
b = color_b / scaledownXscaledown; |
|
|
macro_put_pixel(); |
|
|
x++; |
|
|
} |
|
|
} else if (d->bit_depth == 8) { |
|
|
for (pixel=0; pixel<npixels; pixel++) { |
|
|
int subx, suby, r, g, b; |
|
|
color_r = color_g = color_b = 0; |
|
|
for (suby=0; suby<scaledown; suby++) |
|
|
for (subx=0; subx<scaledown; subx++) { |
|
|
int fb_x, fb_y, fb_addr, c; |
|
|
|
|
|
fb_x = x * scaledown + subx; |
|
|
fb_y = y * scaledown + suby; |
|
|
fb_addr = fb_y * d->xsize + fb_x; |
|
|
/* fb_addr is which _byte_ in framebuffer */ |
|
|
c = d->framebuffer[fb_addr] * 3; |
|
|
r = d->rgb_palette[c + 0]; |
|
|
g = d->rgb_palette[c + 1]; |
|
|
b = d->rgb_palette[c + 2]; |
|
|
color_r += r; |
|
|
color_g += g; |
|
|
color_b += b; |
|
|
} |
|
|
|
|
|
r = color_r / scaledownXscaledown; |
|
|
g = color_g / scaledownXscaledown; |
|
|
b = color_b / scaledownXscaledown; |
|
|
macro_put_pixel(); |
|
|
x++; |
|
|
} |
|
|
} else { |
|
|
/* Generic > 8 bit bit-depth: */ |
|
|
for (pixel=0; pixel<npixels; pixel++) { |
|
|
int subx, suby, r, g, b; |
|
|
color_r = color_g = color_b = 0; |
|
|
for (suby=0; suby<scaledown; suby++) |
|
|
for (subx=0; subx<scaledown; subx++) { |
|
|
int fb_x, fb_y, fb_addr; |
|
|
|
|
|
fb_x = x * scaledown + subx; |
|
|
fb_y = y * scaledown + suby; |
|
|
fb_addr = fb_y * d->xsize + fb_x; |
|
|
fb_addr = (fb_addr * d->bit_depth) >> 3; |
|
|
/* fb_addr is which _byte_ in framebuffer */ |
|
|
|
|
|
/* > 8 bits color. */ |
|
|
switch (d->bit_depth) { |
|
|
case 24: |
|
|
r = d->framebuffer[fb_addr]; |
|
|
g = d->framebuffer[fb_addr + 1]; |
|
|
b = d->framebuffer[fb_addr + 2]; |
|
|
break; |
|
|
default: |
|
|
r = g = b = random() & 255; |
|
|
} |
|
|
color_r += r; |
|
|
color_g += g; |
|
|
color_b += b; |
|
|
} |
|
|
r = color_r / scaledownXscaledown; |
|
|
g = color_g / scaledownXscaledown; |
|
|
b = color_b / scaledownXscaledown; |
|
|
macro_put_pixel(); |
|
|
x++; |
|
|
} |
|
|
} |
|
|
} |
|
409 |
|
|
410 |
|
|
411 |
/* |
/* |
537 |
#endif |
#endif |
538 |
|
|
539 |
if (d->update_x2 != -1) { |
if (d->update_x2 != -1) { |
540 |
int y, addr, addr2, q = d->vfb_scaledown; |
#ifdef WITH_X11 |
541 |
|
int y; |
542 |
|
#endif |
543 |
|
int addr, addr2, q = d->vfb_scaledown; |
544 |
|
|
545 |
if (d->update_x1 >= d->visible_xsize) |
if (d->update_x1 >= d->visible_xsize) |
546 |
d->update_x1 = d->visible_xsize - 1; |
d->update_x1 = d->visible_xsize - 1; |
565 |
addr2 = d->update_y1 * d->bytes_per_line + |
addr2 = d->update_y1 * d->bytes_per_line + |
566 |
d->update_x2 * d->bit_depth / 8; |
d->update_x2 * d->bit_depth / 8; |
567 |
|
|
568 |
|
#ifdef WITH_X11 |
569 |
for (y=d->update_y1; y<=d->update_y2; y+=q) { |
for (y=d->update_y1; y<=d->update_y2; y+=q) { |
570 |
update_framebuffer(d, addr, addr2 - addr); |
d->redraw_func(d, addr, addr2 - addr); |
571 |
addr += d->bytes_per_line * q; |
addr += d->bytes_per_line * q; |
572 |
addr2 += d->bytes_per_line * q; |
addr2 += d->bytes_per_line * q; |
573 |
} |
} |
574 |
|
|
|
#ifdef WITH_X11 |
|
575 |
XPutImage(d->fb_window->x11_display, d->fb_window-> |
XPutImage(d->fb_window->x11_display, d->fb_window-> |
576 |
x11_fb_window, d->fb_window->x11_fb_gc, d->fb_window-> |
x11_fb_window, d->fb_window->x11_fb_gc, d->fb_window-> |
577 |
fb_ximage, d->update_x1/d->vfb_scaledown, d->update_y1/ |
fb_ximage, d->update_x1/d->vfb_scaledown, d->update_y1/ |
600 |
cursor_xsize; |
cursor_xsize; |
601 |
d->fb_window->OLD_cursor_ysize = d->fb_window-> |
d->fb_window->OLD_cursor_ysize = d->fb_window-> |
602 |
cursor_ysize; |
cursor_ysize; |
603 |
|
need_to_flush_x11 = 1; |
604 |
} |
} |
605 |
} |
} |
606 |
#endif |
#endif |
615 |
/* |
/* |
616 |
* dev_fb_access(): |
* dev_fb_access(): |
617 |
*/ |
*/ |
618 |
int dev_fb_access(struct cpu *cpu, struct memory *mem, |
DEVICE_ACCESS(fb) |
|
uint64_t relative_addr, unsigned char *data, size_t len, |
|
|
int writeflag, void *extra) |
|
619 |
{ |
{ |
620 |
struct vfb_data *d = extra; |
struct vfb_data *d = extra; |
621 |
int i; |
size_t i; |
622 |
|
|
623 |
#ifdef FB_DEBUG |
#ifdef FB_DEBUG |
624 |
if (writeflag == MEM_WRITE) { if (data[0]) { |
if (writeflag == MEM_WRITE) { if (data[0]) { |
647 |
|
|
648 |
/* If all bytes are equal to what is already stored |
/* If all bytes are equal to what is already stored |
649 |
in the framebuffer, then simply return: */ |
in the framebuffer, then simply return: */ |
650 |
if (i==len-1) |
if (i == len-1) |
651 |
return 1; |
return 1; |
652 |
} |
} |
653 |
} |
} |
706 |
if (writeflag == MEM_WRITE) { |
if (writeflag == MEM_WRITE) { |
707 |
if (len > 8) |
if (len > 8) |
708 |
memcpy(d->framebuffer + relative_addr, data, len); |
memcpy(d->framebuffer + relative_addr, data, len); |
709 |
else |
else { |
710 |
for (i=0; i<len; i++) |
for (i=0; i<len; i++) |
711 |
d->framebuffer[relative_addr + i] = data[i]; |
d->framebuffer[relative_addr + i] = data[i]; |
712 |
|
} |
713 |
} else { |
} else { |
714 |
if (len > 8) |
if (len > 8) |
715 |
memcpy(data, d->framebuffer + relative_addr, len); |
memcpy(data, d->framebuffer + relative_addr, len); |
716 |
else |
else { |
717 |
for (i=0; i<len; i++) |
for (i=0; i<len; i++) |
718 |
data[i] = d->framebuffer[relative_addr + i]; |
data[i] = d->framebuffer[relative_addr + i]; |
719 |
|
} |
720 |
} |
} |
721 |
|
|
722 |
return 1; |
return 1; |
751 |
struct vfb_data *d; |
struct vfb_data *d; |
752 |
size_t size, nlen; |
size_t size, nlen; |
753 |
int flags; |
int flags; |
754 |
char title[400]; |
int reverse_start = 0; |
755 |
char *name2; |
char *name2; |
756 |
|
|
757 |
d = malloc(sizeof(struct vfb_data)); |
d = malloc(sizeof(struct vfb_data)); |
761 |
} |
} |
762 |
memset(d, 0, sizeof(struct vfb_data)); |
memset(d, 0, sizeof(struct vfb_data)); |
763 |
|
|
764 |
|
if (vfb_type & VFB_REVERSE_START) { |
765 |
|
vfb_type &= ~VFB_REVERSE_START; |
766 |
|
reverse_start = 1; |
767 |
|
} |
768 |
|
|
769 |
|
d->memory = mem; |
770 |
d->vfb_type = vfb_type; |
d->vfb_type = vfb_type; |
771 |
|
|
772 |
/* Defaults: */ |
/* Defaults: */ |
809 |
d->ysize = ysize; d->visible_ysize = d->ysize; |
d->ysize = ysize; d->visible_ysize = d->ysize; |
810 |
d->bit_depth = 24; |
d->bit_depth = 24; |
811 |
break; |
break; |
|
default: |
|
|
; |
|
812 |
} |
} |
813 |
|
|
814 |
if (d->bit_depth == 2 || d->bit_depth == 4) |
if (d->bit_depth == 2 || d->bit_depth == 4) |
829 |
|
|
830 |
/* Clear the framebuffer (all black pixels): */ |
/* Clear the framebuffer (all black pixels): */ |
831 |
d->framebuffer_size = size; |
d->framebuffer_size = size; |
832 |
memset(d->framebuffer, 0, size); |
memset(d->framebuffer, reverse_start? 255 : 0, size); |
833 |
|
|
834 |
d->x11_xsize = d->visible_xsize / d->vfb_scaledown; |
d->x11_xsize = d->visible_xsize / d->vfb_scaledown; |
835 |
d->x11_ysize = d->visible_ysize / d->vfb_scaledown; |
d->x11_ysize = d->visible_ysize / d->vfb_scaledown; |
836 |
|
|
837 |
d->update_x1 = d->update_y1 = 99999; |
/* Only "update" from the start if we need to fill with white. */ |
838 |
d->update_x2 = d->update_y2 = -1; |
/* (The Ximage will be black from the start anyway.) */ |
839 |
|
if (reverse_start) { |
840 |
|
d->update_x1 = d->update_y1 = 0; |
841 |
|
d->update_x2 = d->xsize - 1; |
842 |
|
d->update_y2 = d->ysize - 1; |
843 |
|
} else { |
844 |
|
d->update_x1 = d->update_y1 = 99999; |
845 |
|
d->update_x2 = d->update_y2 = -1; |
846 |
|
} |
847 |
|
|
848 |
/* Don't set the title to include the size of the framebuffer for |
d->name = strdup(name); |
849 |
VGA, since then the resolution might change during runtime. */ |
set_title(d); |
|
if (strcmp(name, "VGA") == 0) |
|
|
snprintf(title, sizeof(title),"GXemul: %s framebuffer", name); |
|
|
else |
|
|
snprintf(title, sizeof(title),"GXemul: %ix%ix%i %s framebuffer", |
|
|
d->visible_xsize, d->visible_ysize, d->bit_depth, name); |
|
|
title[sizeof(title)-1] = '\0'; |
|
850 |
|
|
851 |
#ifdef WITH_X11 |
#ifdef WITH_X11 |
852 |
if (machine->use_x11) |
if (machine->use_x11) { |
853 |
|
int i = 0; |
854 |
d->fb_window = x11_fb_init(d->x11_xsize, d->x11_ysize, |
d->fb_window = x11_fb_init(d->x11_xsize, d->x11_ysize, |
855 |
title, machine->x11_scaledown, machine); |
d->title, machine->x11_scaledown, machine); |
856 |
else |
switch (d->fb_window->x11_screen_depth) { |
857 |
|
case 15: i = 2; break; |
858 |
|
case 16: i = 4; break; |
859 |
|
case 24: i = 6; break; |
860 |
|
} |
861 |
|
if (d->fb_window->fb_ximage->byte_order) |
862 |
|
i ++; |
863 |
|
if (d->vfb_scaledown > 1) |
864 |
|
i += 8; |
865 |
|
d->redraw_func = redraw[i]; |
866 |
|
} else |
867 |
#endif |
#endif |
868 |
d->fb_window = NULL; |
d->fb_window = NULL; |
869 |
|
|
884 |
memory_device_register(mem, name2, baseaddr, size, dev_fb_access, |
memory_device_register(mem, name2, baseaddr, size, dev_fb_access, |
885 |
d, flags, d->framebuffer); |
d, flags, d->framebuffer); |
886 |
|
|
887 |
machine_add_tickfunction(machine, dev_fb_tick, d, FB_TICK_SHIFT); |
machine_add_tickfunction(machine, dev_fb_tick, d, FB_TICK_SHIFT, 0.0); |
888 |
return d; |
return d; |
889 |
} |
} |
890 |
|
|