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/* |
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* 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 |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_fb.c,v 1.116 2006/02/05 10:26:36 debug Exp $ |
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* |
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* Generic framebuffer device. |
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* |
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* DECstation VFB01 monochrome framebuffer, 1024x864 |
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* DECstation VFB02 8-bit color framebuffer, 1024x864 |
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* DECstation Maxine, 1024x768 8-bit color |
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* HPC (mips, arm, ..) framebuffer |
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* Playstation 2 (24-bit color) |
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* generic (any resolution, several bit depths possible) |
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* |
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* |
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* TODO: This should actually be independent of X11, but that |
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* 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 |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "console.h" |
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#include "cpu.h" |
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#include "devices.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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#include "x11.h" |
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|
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#ifdef WITH_X11 |
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#include <X11/Xlib.h> |
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#include <X11/Xos.h> |
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#include <X11/Xutil.h> |
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#endif |
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|
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|
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#define FB_TICK_SHIFT 18 |
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|
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|
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/* #define FB_DEBUG */ |
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|
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/* |
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* set_grayscale_palette(): |
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* |
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* Fill d->rgb_palette with grayscale values. ncolors should |
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* be something like 2, 4, 16, or 256. |
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*/ |
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void set_grayscale_palette(struct vfb_data *d, int ncolors) |
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{ |
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int i, gray; |
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|
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for (i=0; i<256; i++) { |
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gray = 255*i/(ncolors-1); |
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d->rgb_palette[i*3 + 0] = gray; |
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d->rgb_palette[i*3 + 1] = gray; |
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d->rgb_palette[i*3 + 2] = gray; |
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} |
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} |
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|
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|
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/* |
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* set_blackwhite_palette(): |
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* |
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* Set color 0 = black, all others to white. |
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*/ |
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void set_blackwhite_palette(struct vfb_data *d, int ncolors) |
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{ |
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int i, gray; |
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|
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for (i=0; i<256; i++) { |
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gray = i==0? 0 : 255; |
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d->rgb_palette[i*3 + 0] = gray; |
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d->rgb_palette[i*3 + 1] = gray; |
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d->rgb_palette[i*3 + 2] = gray; |
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} |
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} |
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|
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|
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/* |
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* dev_fb_resize(): |
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* |
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* 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.) |
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*/ |
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void dev_fb_resize(struct vfb_data *d, int new_xsize, int new_ysize) |
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{ |
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unsigned char *new_framebuffer; |
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int y, new_bytes_per_line; |
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size_t size; |
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|
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if (d == NULL) { |
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fatal("dev_fb_resize(): d == NULL\n"); |
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return; |
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} |
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|
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new_bytes_per_line = new_xsize * d->bit_depth / 8; |
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size = new_ysize * new_bytes_per_line; |
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|
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new_framebuffer = malloc(size); |
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if (new_framebuffer == NULL) { |
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fprintf(stderr, "dev_fb_resize(): out of memory\n"); |
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exit(1); |
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} |
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|
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/* Copy the old framebuffer to the new: */ |
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if (d->framebuffer != NULL) { |
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for (y=0; y<new_ysize; y++) { |
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size_t fromofs = d->bytes_per_line * y; |
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size_t toofs = new_bytes_per_line * y; |
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size_t len_to_copy = d->bytes_per_line < |
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new_bytes_per_line? d->bytes_per_line |
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: new_bytes_per_line; |
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memset(new_framebuffer + toofs, 0, new_bytes_per_line); |
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if (y < d->x11_ysize) |
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memmove(new_framebuffer + toofs, |
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d->framebuffer + fromofs, len_to_copy); |
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} |
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|
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free(d->framebuffer); |
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} |
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|
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d->framebuffer = new_framebuffer; |
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d->framebuffer_size = size; |
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|
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if (new_xsize > d->xsize || new_ysize > d->ysize) { |
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d->update_x1 = d->update_y1 = 0; |
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d->update_x2 = new_xsize - 1; |
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d->update_y2 = new_ysize - 1; |
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} |
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|
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d->bytes_per_line = new_bytes_per_line; |
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d->xsize = d->visible_xsize = new_xsize; |
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d->ysize = d->visible_ysize = new_ysize; |
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|
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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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|
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#ifdef WITH_X11 |
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if (d->fb_window != NULL) |
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x11_fb_resize(d->fb_window, new_xsize, new_ysize); |
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#endif |
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} |
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|
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|
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/* |
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* dev_fb_setcursor(): |
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*/ |
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void dev_fb_setcursor(struct vfb_data *d, int cursor_x, int cursor_y, int on, |
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int cursor_xsize, int cursor_ysize) |
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{ |
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if (cursor_x < 0) |
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cursor_x = 0; |
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if (cursor_y < 0) |
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cursor_y = 0; |
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if (cursor_x + cursor_xsize >= d->xsize) |
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cursor_x = d->xsize - cursor_xsize; |
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if (cursor_y + cursor_ysize >= d->ysize) |
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cursor_y = d->ysize - cursor_ysize; |
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|
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#ifdef WITH_X11 |
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if (d->fb_window != NULL) { |
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d->fb_window->cursor_x = cursor_x; |
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d->fb_window->cursor_y = cursor_y; |
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d->fb_window->cursor_on = on; |
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d->fb_window->cursor_xsize = cursor_xsize; |
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d->fb_window->cursor_ysize = cursor_ysize; |
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} |
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#endif |
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|
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if (d->fb_window != NULL) |
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console_set_framebuffer_mouse(cursor_x, cursor_y, |
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d->fb_window->fb_number); |
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|
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/* debug("dev_fb_setcursor(%i,%i, size %i,%i, on=%i)\n", |
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cursor_x, cursor_y, cursor_xsize, cursor_ysize, on); */ |
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} |
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|
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|
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/* |
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* framebuffer_blockcopyfill(): |
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* |
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* This function should be used by devices that are capable of doing |
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* block copy/fill. |
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* |
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* If fillflag is non-zero, then fill_[rgb] should contain the color |
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* with which to fill. |
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* |
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* If fillflag is zero, copy mode is used, and from_[xy] should contain |
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* the offset on the framebuffer where we should copy from. |
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* |
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* NOTE: Overlapping copies are undefined! |
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*/ |
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void framebuffer_blockcopyfill(struct vfb_data *d, int fillflag, int fill_r, |
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int fill_g, int fill_b, int x1, int y1, int x2, int y2, |
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int from_x, int from_y) |
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{ |
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int y; |
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long from_ofs, dest_ofs, linelen; |
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|
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if (fillflag) |
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debug("framebuffer_blockcopyfill(FILL, %i,%i, %i,%i, " |
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"color %i,%i,%i)\n", x1,y1, x2,y2, fill_r, fill_g, fill_b); |
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else |
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debug("framebuffer_blockcopyfill(COPY, %i,%i, %i,%i, from " |
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"%i,%i)\n", x1,y1, x2,y2, from_x,from_y); |
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|
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/* Clip x: */ |
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if (x1 < 0) x1 = 0; |
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if (x1 >= d->xsize) x1 = d->xsize-1; |
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if (x2 < 0) x2 = 0; |
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if (x2 >= d->xsize) x2 = d->xsize-1; |
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|
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dest_ofs = d->bytes_per_line * y1 + (d->bit_depth/8) * x1; |
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linelen = (x2-x1 + 1) * (d->bit_depth/8); |
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/* NOTE: linelen is nr of bytes, not pixels */ |
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|
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if (fillflag) { |
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for (y=y1; y<=y2; y++) { |
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if (y>=0 && y<d->ysize) { |
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int x; |
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char buf[8192 * 3]; |
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if (d->bit_depth == 24) |
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for (x=0; x<linelen && x<sizeof(buf); |
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x += 3) { |
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buf[x] = fill_r; |
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buf[x+1] = fill_g; |
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buf[x+2] = fill_b; |
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} |
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else { |
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fatal("[ fb: TODO: fill for non-24-bit" |
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" modes ]\n"); |
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} |
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|
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memmove(d->framebuffer + dest_ofs, buf, |
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linelen); |
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} |
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|
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dest_ofs += d->bytes_per_line; |
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} |
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} else { |
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from_ofs = d->bytes_per_line * from_y + |
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(d->bit_depth/8) * from_x; |
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|
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for (y=y1; y<=y2; y++) { |
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if (y>=0 && y<d->ysize) |
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memmove(d->framebuffer + dest_ofs, |
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d->framebuffer + from_ofs, linelen); |
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|
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from_ofs += d->bytes_per_line; |
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dest_ofs += d->bytes_per_line; |
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} |
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} |
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|
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if (x1 < d->update_x1 || d->update_x1 == -1) d->update_x1 = x1; |
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if (x1 > d->update_x2 || d->update_x2 == -1) d->update_x2 = x1; |
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if (x2 < d->update_x1 || d->update_x1 == -1) d->update_x1 = x2; |
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if (x2 > d->update_x2 || d->update_x2 == -1) d->update_x2 = x2; |
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|
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if (y1 < d->update_y1 || d->update_y1 == -1) d->update_y1 = y1; |
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if (y1 > d->update_y2 || d->update_y2 == -1) d->update_y2 = y1; |
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if (y2 < d->update_y1 || d->update_y1 == -1) d->update_y1 = y2; |
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if (y2 > d->update_y2 || d->update_y2 == -1) d->update_y2 = y2; |
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} |
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|
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|
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#ifdef WITH_X11 |
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|
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#define REDRAW redraw_fallback |
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#include "fb_include.c" |
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#undef REDRAW |
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|
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#define FB_24 |
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#define REDRAW redraw_24 |
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#include "fb_include.c" |
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#undef REDRAW |
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#undef FB_24 |
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#define FB_16 |
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#define REDRAW redraw_16 |
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#include "fb_include.c" |
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#undef FB_16 |
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#undef REDRAW |
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#define FB_15 |
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#define REDRAW redraw_15 |
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#include "fb_include.c" |
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#undef REDRAW |
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#undef FB_15 |
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|
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#define FB_BO |
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#define FB_24 |
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#define REDRAW redraw_24_bo |
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#include "fb_include.c" |
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#undef REDRAW |
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#undef FB_24 |
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#define FB_16 |
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#define REDRAW redraw_16_bo |
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#include "fb_include.c" |
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#undef FB_16 |
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#undef REDRAW |
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#define FB_15 |
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#define REDRAW redraw_15_bo |
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#include "fb_include.c" |
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#undef REDRAW |
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#undef FB_15 |
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#undef FB_BO |
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|
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#define FB_SCALEDOWN |
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|
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#define REDRAW redraw_fallback_sd |
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#include "fb_include.c" |
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#undef REDRAW |
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|
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#define FB_24 |
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#define REDRAW redraw_24_sd |
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#include "fb_include.c" |
343 |
#undef REDRAW |
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#undef FB_24 |
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#define FB_16 |
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#define REDRAW redraw_16_sd |
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#include "fb_include.c" |
348 |
#undef FB_16 |
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#undef REDRAW |
350 |
#define FB_15 |
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#define REDRAW redraw_15_sd |
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#include "fb_include.c" |
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#undef REDRAW |
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#undef FB_15 |
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|
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#define FB_BO |
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#define FB_24 |
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#define REDRAW redraw_24_bo_sd |
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#include "fb_include.c" |
360 |
#undef REDRAW |
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#undef FB_24 |
362 |
#define FB_16 |
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#define REDRAW redraw_16_bo_sd |
364 |
#include "fb_include.c" |
365 |
#undef FB_16 |
366 |
#undef REDRAW |
367 |
#define FB_15 |
368 |
#define REDRAW redraw_15_bo_sd |
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#include "fb_include.c" |
370 |
#undef REDRAW |
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#undef FB_15 |
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#undef FB_BO |
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|
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void (*redraw[2 * 4 * 2])(struct vfb_data *, int, int) = { |
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redraw_fallback, redraw_fallback, |
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redraw_15, redraw_15_bo, |
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redraw_16, redraw_16_bo, |
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redraw_24, redraw_24_bo, |
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redraw_fallback_sd, redraw_fallback_sd, |
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redraw_15_sd, redraw_15_bo_sd, |
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redraw_16_sd, redraw_16_bo_sd, |
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redraw_24_sd, redraw_24_bo_sd }; |
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|
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#endif /* WITH_X11 */ |
385 |
|
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|
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/* |
388 |
* dev_fb_tick(): |
389 |
* |
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*/ |
391 |
void dev_fb_tick(struct cpu *cpu, void *extra) |
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{ |
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struct vfb_data *d = extra; |
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#ifdef WITH_X11 |
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int need_to_flush_x11 = 0; |
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int need_to_redraw_cursor = 0; |
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#endif |
398 |
|
399 |
if (!cpu->machine->use_x11) |
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return; |
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|
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do { |
403 |
uint64_t high, low = (uint64_t)(int64_t) -1; |
404 |
int x, y; |
405 |
|
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memory_device_dyntrans_access(cpu, cpu->mem, |
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extra, &low, &high); |
408 |
if ((int64_t)low == -1) |
409 |
break; |
410 |
|
411 |
/* printf("low=%016llx high=%016llx\n", |
412 |
(long long)low, (long long)high); */ |
413 |
|
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x = (low % d->bytes_per_line) * 8 / d->bit_depth; |
415 |
y = low / d->bytes_per_line; |
416 |
if (x < d->update_x1 || d->update_x1 == -1) |
417 |
d->update_x1 = x; |
418 |
if (x > d->update_x2 || d->update_x2 == -1) |
419 |
d->update_x2 = x; |
420 |
if (y < d->update_y1 || d->update_y1 == -1) |
421 |
d->update_y1 = y; |
422 |
if (y > d->update_y2 || d->update_y2 == -1) |
423 |
d->update_y2 = y; |
424 |
|
425 |
x = ((low+7) % d->bytes_per_line) * 8 / d->bit_depth; |
426 |
y = (low+7) / d->bytes_per_line; |
427 |
if (x < d->update_x1 || d->update_x1 == -1) |
428 |
d->update_x1 = x; |
429 |
if (x > d->update_x2 || d->update_x2 == -1) |
430 |
d->update_x2 = x; |
431 |
if (y < d->update_y1 || d->update_y1 == -1) |
432 |
d->update_y1 = y; |
433 |
if (y > d->update_y2 || d->update_y2 == -1) |
434 |
d->update_y2 = y; |
435 |
|
436 |
x = (high % d->bytes_per_line) * 8 / d->bit_depth; |
437 |
y = high / d->bytes_per_line; |
438 |
if (x < d->update_x1 || d->update_x1 == -1) |
439 |
d->update_x1 = x; |
440 |
if (x > d->update_x2 || d->update_x2 == -1) |
441 |
d->update_x2 = x; |
442 |
if (y < d->update_y1 || d->update_y1 == -1) |
443 |
d->update_y1 = y; |
444 |
if (y > d->update_y2 || d->update_y2 == -1) |
445 |
d->update_y2 = y; |
446 |
|
447 |
x = ((high+7) % d->bytes_per_line) * 8 / d->bit_depth; |
448 |
y = (high+7) / d->bytes_per_line; |
449 |
if (x < d->update_x1 || d->update_x1 == -1) |
450 |
d->update_x1 = x; |
451 |
if (x > d->update_x2 || d->update_x2 == -1) |
452 |
d->update_x2 = x; |
453 |
if (y < d->update_y1 || d->update_y1 == -1) |
454 |
d->update_y1 = y; |
455 |
if (y > d->update_y2 || d->update_y2 == -1) |
456 |
d->update_y2 = y; |
457 |
|
458 |
/* |
459 |
* An update covering more than one line will automatically |
460 |
* force an update of all the affected lines: |
461 |
*/ |
462 |
if (d->update_y1 != d->update_y2) { |
463 |
d->update_x1 = 0; |
464 |
d->update_x2 = d->xsize-1; |
465 |
} |
466 |
} while (0); |
467 |
|
468 |
#ifdef WITH_X11 |
469 |
/* Do we need to redraw the cursor? */ |
470 |
if (d->fb_window->cursor_on != d->fb_window->OLD_cursor_on || |
471 |
d->fb_window->cursor_x != d->fb_window->OLD_cursor_x || |
472 |
d->fb_window->cursor_y != d->fb_window->OLD_cursor_y || |
473 |
d->fb_window->cursor_xsize != d->fb_window->OLD_cursor_xsize || |
474 |
d->fb_window->cursor_ysize != d->fb_window->OLD_cursor_ysize) |
475 |
need_to_redraw_cursor = 1; |
476 |
|
477 |
if (d->update_x2 != -1) { |
478 |
if (((d->update_x1 >= d->fb_window->OLD_cursor_x && |
479 |
d->update_x1 < (d->fb_window->OLD_cursor_x + |
480 |
d->fb_window->OLD_cursor_xsize)) || |
481 |
(d->update_x2 >= d->fb_window->OLD_cursor_x && |
482 |
d->update_x2 < (d->fb_window->OLD_cursor_x + |
483 |
d->fb_window->OLD_cursor_xsize)) || |
484 |
(d->update_x1 < d->fb_window->OLD_cursor_x && |
485 |
d->update_x2 >= (d->fb_window->OLD_cursor_x + |
486 |
d->fb_window->OLD_cursor_xsize)) ) && |
487 |
( (d->update_y1 >= d->fb_window->OLD_cursor_y && |
488 |
d->update_y1 < (d->fb_window->OLD_cursor_y + |
489 |
d->fb_window->OLD_cursor_ysize)) || |
490 |
(d->update_y2 >= d->fb_window->OLD_cursor_y && |
491 |
d->update_y2 < (d->fb_window->OLD_cursor_y + |
492 |
d->fb_window->OLD_cursor_ysize)) || |
493 |
(d->update_y1 < d->fb_window->OLD_cursor_y && |
494 |
d->update_y2 >= (d->fb_window->OLD_cursor_y + |
495 |
d->fb_window->OLD_cursor_ysize)) ) ) |
496 |
need_to_redraw_cursor = 1; |
497 |
} |
498 |
|
499 |
if (need_to_redraw_cursor) { |
500 |
/* Remove old cursor, if any: */ |
501 |
if (d->fb_window->OLD_cursor_on) { |
502 |
XPutImage(d->fb_window->x11_display, |
503 |
d->fb_window->x11_fb_window, |
504 |
d->fb_window->x11_fb_gc, d->fb_window->fb_ximage, |
505 |
d->fb_window->OLD_cursor_x/d->vfb_scaledown, |
506 |
d->fb_window->OLD_cursor_y/d->vfb_scaledown, |
507 |
d->fb_window->OLD_cursor_x/d->vfb_scaledown, |
508 |
d->fb_window->OLD_cursor_y/d->vfb_scaledown, |
509 |
d->fb_window->OLD_cursor_xsize/d->vfb_scaledown + 1, |
510 |
d->fb_window->OLD_cursor_ysize/d->vfb_scaledown +1); |
511 |
} |
512 |
} |
513 |
#endif |
514 |
|
515 |
if (d->update_x2 != -1) { |
516 |
int y, addr, addr2, q = d->vfb_scaledown; |
517 |
|
518 |
if (d->update_x1 >= d->visible_xsize) |
519 |
d->update_x1 = d->visible_xsize - 1; |
520 |
if (d->update_x2 >= d->visible_xsize) |
521 |
d->update_x2 = d->visible_xsize - 1; |
522 |
if (d->update_y1 >= d->visible_ysize) |
523 |
d->update_y1 = d->visible_ysize - 1; |
524 |
if (d->update_y2 >= d->visible_ysize) |
525 |
d->update_y2 = d->visible_ysize - 1; |
526 |
|
527 |
/* Without these, we might miss the rightmost/bottom pixel: */ |
528 |
d->update_x2 += (q - 1); |
529 |
d->update_y2 += (q - 1); |
530 |
|
531 |
d->update_x1 = d->update_x1 / q * q; |
532 |
d->update_x2 = d->update_x2 / q * q; |
533 |
d->update_y1 = d->update_y1 / q * q; |
534 |
d->update_y2 = d->update_y2 / q * q; |
535 |
|
536 |
addr = d->update_y1 * d->bytes_per_line + |
537 |
d->update_x1 * d->bit_depth / 8; |
538 |
addr2 = d->update_y1 * d->bytes_per_line + |
539 |
d->update_x2 * d->bit_depth / 8; |
540 |
|
541 |
#ifdef WITH_X11 |
542 |
for (y=d->update_y1; y<=d->update_y2; y+=q) { |
543 |
d->redraw_func(d, addr, addr2 - addr); |
544 |
addr += d->bytes_per_line * q; |
545 |
addr2 += d->bytes_per_line * q; |
546 |
} |
547 |
|
548 |
XPutImage(d->fb_window->x11_display, d->fb_window-> |
549 |
x11_fb_window, d->fb_window->x11_fb_gc, d->fb_window-> |
550 |
fb_ximage, d->update_x1/d->vfb_scaledown, d->update_y1/ |
551 |
d->vfb_scaledown, d->update_x1/d->vfb_scaledown, |
552 |
d->update_y1/d->vfb_scaledown, |
553 |
(d->update_x2 - d->update_x1)/d->vfb_scaledown + 1, |
554 |
(d->update_y2 - d->update_y1)/d->vfb_scaledown + 1); |
555 |
|
556 |
need_to_flush_x11 = 1; |
557 |
#endif |
558 |
|
559 |
d->update_x1 = d->update_y1 = 99999; |
560 |
d->update_x2 = d->update_y2 = -1; |
561 |
} |
562 |
|
563 |
#ifdef WITH_X11 |
564 |
if (need_to_redraw_cursor) { |
565 |
/* Paint new cursor: */ |
566 |
if (d->fb_window->cursor_on) { |
567 |
x11_redraw_cursor(cpu->machine, |
568 |
d->fb_window->fb_number); |
569 |
d->fb_window->OLD_cursor_on = d->fb_window->cursor_on; |
570 |
d->fb_window->OLD_cursor_x = d->fb_window->cursor_x; |
571 |
d->fb_window->OLD_cursor_y = d->fb_window->cursor_y; |
572 |
d->fb_window->OLD_cursor_xsize = d->fb_window-> |
573 |
cursor_xsize; |
574 |
d->fb_window->OLD_cursor_ysize = d->fb_window-> |
575 |
cursor_ysize; |
576 |
need_to_flush_x11 = 1; |
577 |
} |
578 |
} |
579 |
#endif |
580 |
|
581 |
#ifdef WITH_X11 |
582 |
if (need_to_flush_x11) |
583 |
XFlush(d->fb_window->x11_display); |
584 |
#endif |
585 |
} |
586 |
|
587 |
|
588 |
/* |
589 |
* dev_fb_access(): |
590 |
*/ |
591 |
DEVICE_ACCESS(fb) |
592 |
{ |
593 |
struct vfb_data *d = extra; |
594 |
size_t i; |
595 |
|
596 |
#ifdef FB_DEBUG |
597 |
if (writeflag == MEM_WRITE) { if (data[0]) { |
598 |
fatal("[ dev_fb: write to addr=%08lx, data = ", |
599 |
(long)relative_addr); |
600 |
for (i=0; i<len; i++) |
601 |
fatal("%02x ", data[i]); |
602 |
fatal("]\n"); |
603 |
} else { |
604 |
fatal("[ dev_fb: read from addr=%08lx, data = ", |
605 |
(long)relative_addr); |
606 |
for (i=0; i<len; i++) |
607 |
fatal("%02x ", d->framebuffer[relative_addr + i]); |
608 |
fatal("]\n"); |
609 |
} |
610 |
#endif |
611 |
|
612 |
if (relative_addr >= d->framebuffer_size) |
613 |
return 0; |
614 |
|
615 |
/* See if a write actually modifies the framebuffer contents: */ |
616 |
if (writeflag == MEM_WRITE) { |
617 |
for (i=0; i<len; i++) { |
618 |
if (data[i] != d->framebuffer[relative_addr + i]) |
619 |
break; |
620 |
|
621 |
/* If all bytes are equal to what is already stored |
622 |
in the framebuffer, then simply return: */ |
623 |
if (i == len-1) |
624 |
return 1; |
625 |
} |
626 |
} |
627 |
|
628 |
/* |
629 |
* If the framebuffer is modified, then we should keep a track |
630 |
* of which area(s) we modify, so that the display isn't updated |
631 |
* unnecessarily. |
632 |
*/ |
633 |
if (writeflag == MEM_WRITE && cpu->machine->use_x11) { |
634 |
int x, y, x2,y2; |
635 |
|
636 |
x = (relative_addr % d->bytes_per_line) * 8 / d->bit_depth; |
637 |
y = relative_addr / d->bytes_per_line; |
638 |
x2 = ((relative_addr + len) % d->bytes_per_line) |
639 |
* 8 / d->bit_depth; |
640 |
y2 = (relative_addr + len) / d->bytes_per_line; |
641 |
|
642 |
if (x < d->update_x1 || d->update_x1 == -1) |
643 |
d->update_x1 = x; |
644 |
if (x > d->update_x2 || d->update_x2 == -1) |
645 |
d->update_x2 = x; |
646 |
|
647 |
if (y < d->update_y1 || d->update_y1 == -1) |
648 |
d->update_y1 = y; |
649 |
if (y > d->update_y2 || d->update_y2 == -1) |
650 |
d->update_y2 = y; |
651 |
|
652 |
if (x2 < d->update_x1 || d->update_x1 == -1) |
653 |
d->update_x1 = x2; |
654 |
if (x2 > d->update_x2 || d->update_x2 == -1) |
655 |
d->update_x2 = x2; |
656 |
|
657 |
if (y2 < d->update_y1 || d->update_y1 == -1) |
658 |
d->update_y1 = y2; |
659 |
if (y2 > d->update_y2 || d->update_y2 == -1) |
660 |
d->update_y2 = y2; |
661 |
|
662 |
/* |
663 |
* An update covering more than one line will automatically |
664 |
* force an update of all the affected lines: |
665 |
*/ |
666 |
if (y != y2) { |
667 |
d->update_x1 = 0; |
668 |
d->update_x2 = d->xsize-1; |
669 |
} |
670 |
} |
671 |
|
672 |
/* |
673 |
* Read from/write to the framebuffer: |
674 |
* (TODO: take the color_plane_mask into account) |
675 |
* |
676 |
* Calling memcpy() is probably overkill, as it usually is just one |
677 |
* or a few bytes that are read/written at a time. |
678 |
*/ |
679 |
if (writeflag == MEM_WRITE) { |
680 |
if (len > 8) |
681 |
memcpy(d->framebuffer + relative_addr, data, len); |
682 |
else { |
683 |
for (i=0; i<len; i++) |
684 |
d->framebuffer[relative_addr + i] = data[i]; |
685 |
} |
686 |
} else { |
687 |
if (len > 8) |
688 |
memcpy(data, d->framebuffer + relative_addr, len); |
689 |
else { |
690 |
for (i=0; i<len; i++) |
691 |
data[i] = d->framebuffer[relative_addr + i]; |
692 |
} |
693 |
} |
694 |
|
695 |
return 1; |
696 |
} |
697 |
|
698 |
|
699 |
/* |
700 |
* dev_fb_init(): |
701 |
* |
702 |
* This function is big and ugly, but the point is to initialize a framebuffer |
703 |
* device. :-) |
704 |
* |
705 |
* visible_xsize and visible_ysize are the sizes of the visible display area. |
706 |
* xsize and ysize tell how much memory is actually allocated (for example |
707 |
* visible_xsize could be 640, but xsize could be 1024, for better alignment). |
708 |
* |
709 |
* vfb_type is useful for selecting special features. |
710 |
* |
711 |
* type = VFB_GENERIC is the most useful type, especially when bit_depth = 24. |
712 |
* |
713 |
* VFB_DEC_VFB01, _VFB02, and VFB_DEC_MAXINE are DECstation specific. |
714 |
* |
715 |
* If type is VFB_HPC, then color encoding differs from the generic case. |
716 |
* |
717 |
* If bit_depth = -15 (note the minus sign), then a special hack is used for |
718 |
* the Playstation Portable's 5-bit R, 5-bit G, 5-bit B. |
719 |
*/ |
720 |
struct vfb_data *dev_fb_init(struct machine *machine, struct memory *mem, |
721 |
uint64_t baseaddr, int vfb_type, int visible_xsize, int visible_ysize, |
722 |
int xsize, int ysize, int bit_depth, char *name) |
723 |
{ |
724 |
struct vfb_data *d; |
725 |
size_t size, nlen; |
726 |
int flags; |
727 |
int reverse_start = 0; |
728 |
char title[400]; |
729 |
char *name2; |
730 |
|
731 |
d = malloc(sizeof(struct vfb_data)); |
732 |
if (d == NULL) { |
733 |
fprintf(stderr, "out of memory\n"); |
734 |
exit(1); |
735 |
} |
736 |
memset(d, 0, sizeof(struct vfb_data)); |
737 |
|
738 |
if (vfb_type & VFB_REVERSE_START) { |
739 |
vfb_type &= ~VFB_REVERSE_START; |
740 |
reverse_start = 1; |
741 |
} |
742 |
|
743 |
d->vfb_type = vfb_type; |
744 |
|
745 |
/* Defaults: */ |
746 |
d->xsize = xsize; d->visible_xsize = visible_xsize; |
747 |
d->ysize = ysize; d->visible_ysize = visible_ysize; |
748 |
|
749 |
d->bit_depth = bit_depth; |
750 |
|
751 |
if (bit_depth == 15) { |
752 |
d->color32k = 1; |
753 |
bit_depth = d->bit_depth = 16; |
754 |
} else if (bit_depth == -15) { |
755 |
d->psp_15bit = 1; |
756 |
bit_depth = d->bit_depth = 16; |
757 |
} |
758 |
|
759 |
/* Specific types: */ |
760 |
switch (vfb_type) { |
761 |
case VFB_DEC_VFB01: |
762 |
/* DECstation VFB01 (monochrome) */ |
763 |
d->xsize = 2048; d->visible_xsize = 1024; |
764 |
d->ysize = 1024; d->visible_ysize = 864; |
765 |
d->bit_depth = 1; |
766 |
break; |
767 |
case VFB_DEC_VFB02: |
768 |
/* DECstation VFB02 (color) */ |
769 |
d->xsize = 1024; d->visible_xsize = 1024; |
770 |
d->ysize = 1024; d->visible_ysize = 864; |
771 |
d->bit_depth = 8; |
772 |
break; |
773 |
case VFB_DEC_MAXINE: |
774 |
/* DECstation Maxine (1024x768x8) */ |
775 |
d->xsize = 1024; d->visible_xsize = d->xsize; |
776 |
d->ysize = 768; d->visible_ysize = d->ysize; |
777 |
d->bit_depth = 8; |
778 |
break; |
779 |
case VFB_PLAYSTATION2: |
780 |
/* Playstation 2 */ |
781 |
d->xsize = xsize; d->visible_xsize = d->xsize; |
782 |
d->ysize = ysize; d->visible_ysize = d->ysize; |
783 |
d->bit_depth = 24; |
784 |
break; |
785 |
} |
786 |
|
787 |
if (d->bit_depth == 2 || d->bit_depth == 4) |
788 |
set_grayscale_palette(d, 1 << d->bit_depth); |
789 |
else if (d->bit_depth == 8 || d->bit_depth == 1) |
790 |
set_blackwhite_palette(d, 1 << d->bit_depth); |
791 |
|
792 |
d->vfb_scaledown = machine->x11_scaledown; |
793 |
|
794 |
d->bytes_per_line = d->xsize * d->bit_depth / 8; |
795 |
size = d->ysize * d->bytes_per_line; |
796 |
|
797 |
d->framebuffer = malloc(size); |
798 |
if (d->framebuffer == NULL) { |
799 |
fprintf(stderr, "out of memory\n"); |
800 |
exit(1); |
801 |
} |
802 |
|
803 |
/* Clear the framebuffer (all black pixels): */ |
804 |
d->framebuffer_size = size; |
805 |
memset(d->framebuffer, reverse_start? 255 : 0, size); |
806 |
|
807 |
d->x11_xsize = d->visible_xsize / d->vfb_scaledown; |
808 |
d->x11_ysize = d->visible_ysize / d->vfb_scaledown; |
809 |
|
810 |
/* Only "update" from the start if we need to fill with white. */ |
811 |
/* (The Ximage will be black from the start anyway.) */ |
812 |
if (reverse_start) { |
813 |
d->update_x1 = d->update_y1 = 0; |
814 |
d->update_x2 = d->xsize - 1; |
815 |
d->update_y2 = d->ysize - 1; |
816 |
} else { |
817 |
d->update_x1 = d->update_y1 = 99999; |
818 |
d->update_x2 = d->update_y2 = -1; |
819 |
} |
820 |
|
821 |
/* Don't set the title to include the size of the framebuffer for |
822 |
VGA, since then the resolution might change during runtime. */ |
823 |
if (strcmp(name, "VGA") == 0) |
824 |
snprintf(title, sizeof(title),"GXemul: %s framebuffer", name); |
825 |
else |
826 |
snprintf(title, sizeof(title),"GXemul: %ix%ix%i %s framebuffer", |
827 |
d->visible_xsize, d->visible_ysize, d->bit_depth, name); |
828 |
title[sizeof(title)-1] = '\0'; |
829 |
|
830 |
#ifdef WITH_X11 |
831 |
if (machine->use_x11) { |
832 |
int i = 0; |
833 |
d->fb_window = x11_fb_init(d->x11_xsize, d->x11_ysize, |
834 |
title, machine->x11_scaledown, machine); |
835 |
switch (d->fb_window->x11_screen_depth) { |
836 |
case 15: i = 2; break; |
837 |
case 16: i = 4; break; |
838 |
case 24: i = 6; break; |
839 |
} |
840 |
if (d->fb_window->fb_ximage->byte_order) |
841 |
i ++; |
842 |
if (d->vfb_scaledown > 1) |
843 |
i += 8; |
844 |
d->redraw_func = redraw[i]; |
845 |
} else |
846 |
#endif |
847 |
d->fb_window = NULL; |
848 |
|
849 |
nlen = strlen(name) + 10; |
850 |
name2 = malloc(nlen); |
851 |
if (name2 == NULL) { |
852 |
fprintf(stderr, "out of memory in dev_fb_init()\n"); |
853 |
exit(1); |
854 |
} |
855 |
snprintf(name2, nlen, "fb [%s]", name); |
856 |
|
857 |
flags = DM_DEFAULT; |
858 |
if ((baseaddr & 0xfff) == 0) |
859 |
flags = DM_DYNTRANS_OK | DM_DYNTRANS_WRITE_OK; |
860 |
|
861 |
flags |= DM_READS_HAVE_NO_SIDE_EFFECTS; |
862 |
|
863 |
memory_device_register(mem, name2, baseaddr, size, dev_fb_access, |
864 |
d, flags, d->framebuffer); |
865 |
|
866 |
machine_add_tickfunction(machine, dev_fb_tick, d, FB_TICK_SHIFT); |
867 |
return d; |
868 |
} |
869 |
|