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/* |
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* Copyright (C) 2003-2005 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 1.110 2005/11/13 00:14:08 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: There is still a bug when redrawing the cursor. The underlying |
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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. |
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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->x11_xsize || new_ysize > d->x11_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->x11_xsize = d->visible_xsize = new_xsize; |
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d->x11_ysize = d->visible_ysize = new_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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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+=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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printf("TODO: fill for non-24-bit" |
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" modes\n"); |
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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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#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; \ |
| 326 |
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; \ |
| 337 |
} \ |
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break; \ |
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default: \ |
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color = d->fb_window->x11_graycolor[15 * (r + g + b) \ |
| 341 |
/ (255 * 3)].pixel; \ |
| 342 |
} \ |
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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); \ |
| 345 |
} |
| 346 |
#else |
| 347 |
/* If not WITH_X11: */ |
| 348 |
#define macro_put_pixel() { } |
| 349 |
#endif |
| 350 |
|
| 351 |
|
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/* |
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* update_framebuffer(): |
| 354 |
* |
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* The framebuffer memory has been updated. This function tries to make |
| 356 |
* sure that the XImage is also updated (1 or more pixels). |
| 357 |
*/ |
| 358 |
void update_framebuffer(struct vfb_data *d, int addr, int len) |
| 359 |
{ |
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int x, y, pixel, npixels; |
| 361 |
long color_r, color_g, color_b; |
| 362 |
#ifdef WITH_X11 |
| 363 |
long color; |
| 364 |
#endif |
| 365 |
int scaledown = d->vfb_scaledown; |
| 366 |
int scaledownXscaledown = 1; |
| 367 |
|
| 368 |
if (scaledown == 1) { |
| 369 |
/* Which framebuffer pixel does addr correspond to? */ |
| 370 |
pixel = addr * 8 / d->bit_depth; |
| 371 |
y = pixel / d->xsize; |
| 372 |
x = pixel % d->xsize; |
| 373 |
|
| 374 |
/* How many framebuffer pixels? */ |
| 375 |
npixels = len * 8 / d->bit_depth; |
| 376 |
if (npixels == 0) |
| 377 |
npixels = 1; |
| 378 |
|
| 379 |
if (d->bit_depth < 8) { |
| 380 |
for (pixel=0; pixel<npixels; pixel++) { |
| 381 |
int fb_addr, c, r, g, b; |
| 382 |
color_r = color_g = color_b = 0; |
| 383 |
|
| 384 |
fb_addr = (y * d->xsize + x) * d->bit_depth; |
| 385 |
/* fb_addr is now which _bit_ in |
| 386 |
the framebuffer */ |
| 387 |
|
| 388 |
c = d->framebuffer[fb_addr >> 3]; |
| 389 |
fb_addr &= 7; |
| 390 |
|
| 391 |
/* HPC is reverse: */ |
| 392 |
if (d->vfb_type == VFB_HPC) |
| 393 |
fb_addr = 8 - d->bit_depth - fb_addr; |
| 394 |
|
| 395 |
c = (c >> fb_addr) & ((1<<d->bit_depth) - 1); |
| 396 |
/* c <<= (8 - d->bit_depth); */ |
| 397 |
|
| 398 |
r = d->rgb_palette[c*3 + 0]; |
| 399 |
g = d->rgb_palette[c*3 + 1]; |
| 400 |
b = d->rgb_palette[c*3 + 2]; |
| 401 |
|
| 402 |
macro_put_pixel(); |
| 403 |
x++; |
| 404 |
} |
| 405 |
} else if (d->bit_depth == 8) { |
| 406 |
for (pixel=0; pixel<npixels; pixel++) { |
| 407 |
int fb_addr, c, r, g, b; |
| 408 |
color_r = color_g = color_b = 0; |
| 409 |
|
| 410 |
fb_addr = y * d->xsize + x; |
| 411 |
/* fb_addr is now which byte in framebuffer */ |
| 412 |
c = d->framebuffer[fb_addr]; |
| 413 |
r = d->rgb_palette[c*3 + 0]; |
| 414 |
g = d->rgb_palette[c*3 + 1]; |
| 415 |
b = d->rgb_palette[c*3 + 2]; |
| 416 |
|
| 417 |
macro_put_pixel(); |
| 418 |
x++; |
| 419 |
} |
| 420 |
} else { /* d->bit_depth > 8 */ |
| 421 |
for (pixel=0; pixel<npixels; pixel++) { |
| 422 |
int fb_addr, r, g, b; |
| 423 |
color_r = color_g = color_b = 0; |
| 424 |
|
| 425 |
fb_addr = (y * d->xsize + x) * d->bit_depth; |
| 426 |
/* fb_addr is now which byte in framebuffer */ |
| 427 |
|
| 428 |
/* > 8 bits color. */ |
| 429 |
fb_addr >>= 3; |
| 430 |
switch (d->bit_depth) { |
| 431 |
case 24: |
| 432 |
r = d->framebuffer[fb_addr]; |
| 433 |
g = d->framebuffer[fb_addr + 1]; |
| 434 |
b = d->framebuffer[fb_addr + 2]; |
| 435 |
break; |
| 436 |
/* TODO: copy to the scaledown code below */ |
| 437 |
case 16: |
| 438 |
if (d->vfb_type == VFB_HPC) { |
| 439 |
b = d->framebuffer[fb_addr] + |
| 440 |
(d->framebuffer[fb_addr+1] |
| 441 |
<< 8); |
| 442 |
|
| 443 |
if (d->color32k) { |
| 444 |
r = b >> 11; |
| 445 |
g = b >> 5; |
| 446 |
r = r & 31; |
| 447 |
g = (g & 31) * 2; |
| 448 |
b = b & 31; |
| 449 |
} else if (d->psp_15bit) { |
| 450 |
int tmp; |
| 451 |
r = (b >> 10) & 0x1f; |
| 452 |
g = (b >> 5) & 0x1f; |
| 453 |
b = b & 0x1f; |
| 454 |
g <<= 1; |
| 455 |
tmp = r; r = b; b = tmp; |
| 456 |
} else { |
| 457 |
r = (b >> 11) & 0x1f; |
| 458 |
g = (b >> 5) & 0x3f; |
| 459 |
b = b & 0x1f; |
| 460 |
} |
| 461 |
} else { |
| 462 |
r = d->framebuffer[fb_addr] >> 3; |
| 463 |
g = (d->framebuffer[fb_addr] << 5) + |
| 464 |
(d->framebuffer[fb_addr + 1] >>5); |
| 465 |
b = d->framebuffer[fb_addr + 1]&31; |
| 466 |
} |
| 467 |
|
| 468 |
r *= 8; |
| 469 |
g *= 4; |
| 470 |
b *= 8; |
| 471 |
break; |
| 472 |
default: |
| 473 |
r = g = b = random() & 255; |
| 474 |
} |
| 475 |
|
| 476 |
macro_put_pixel(); |
| 477 |
x++; |
| 478 |
} |
| 479 |
} |
| 480 |
|
| 481 |
return; |
| 482 |
} |
| 483 |
|
| 484 |
/* scaledown > 1: */ |
| 485 |
|
| 486 |
scaledown = d->vfb_scaledown; |
| 487 |
scaledownXscaledown = scaledown * scaledown; |
| 488 |
|
| 489 |
/* Which framebuffer pixel does addr correspond to? */ |
| 490 |
pixel = addr * 8 / d->bit_depth; |
| 491 |
y = pixel / d->xsize; |
| 492 |
x = pixel % d->xsize; |
| 493 |
|
| 494 |
/* How many framebuffer pixels? */ |
| 495 |
npixels = len * 8 / d->bit_depth; |
| 496 |
|
| 497 |
/* Which x11 pixel? */ |
| 498 |
x /= scaledown; |
| 499 |
y /= scaledown; |
| 500 |
|
| 501 |
/* How many x11 pixels: */ |
| 502 |
npixels /= scaledown; |
| 503 |
if (npixels == 0) |
| 504 |
npixels = 1; |
| 505 |
|
| 506 |
if (d->bit_depth < 8) { |
| 507 |
for (pixel=0; pixel<npixels; pixel++) { |
| 508 |
int subx, suby, r, g, b; |
| 509 |
color_r = color_g = color_b = 0; |
| 510 |
for (suby=0; suby<scaledown; suby++) |
| 511 |
for (subx=0; subx<scaledown; subx++) { |
| 512 |
int fb_x, fb_y, fb_addr, c; |
| 513 |
|
| 514 |
fb_x = x * scaledown + subx; |
| 515 |
fb_y = y * scaledown + suby; |
| 516 |
fb_addr = fb_y * d->xsize + fb_x; |
| 517 |
fb_addr = fb_addr * d->bit_depth; |
| 518 |
/* fb_addr is now which _bit_ in |
| 519 |
the framebuffer */ |
| 520 |
|
| 521 |
c = d->framebuffer[fb_addr >> 3]; |
| 522 |
fb_addr &= 7; |
| 523 |
|
| 524 |
/* HPC is reverse: */ |
| 525 |
if (d->vfb_type == VFB_HPC) |
| 526 |
fb_addr = 8 - d->bit_depth - fb_addr; |
| 527 |
|
| 528 |
c = (c >> fb_addr) & ((1<<d->bit_depth) - 1); |
| 529 |
/* c <<= (8 - d->bit_depth); */ |
| 530 |
|
| 531 |
r = d->rgb_palette[c*3 + 0]; |
| 532 |
g = d->rgb_palette[c*3 + 1]; |
| 533 |
b = d->rgb_palette[c*3 + 2]; |
| 534 |
|
| 535 |
color_r += r; |
| 536 |
color_g += g; |
| 537 |
color_b += b; |
| 538 |
} |
| 539 |
|
| 540 |
r = color_r / scaledownXscaledown; |
| 541 |
g = color_g / scaledownXscaledown; |
| 542 |
b = color_b / scaledownXscaledown; |
| 543 |
macro_put_pixel(); |
| 544 |
x++; |
| 545 |
} |
| 546 |
} else if (d->bit_depth == 8) { |
| 547 |
for (pixel=0; pixel<npixels; pixel++) { |
| 548 |
int subx, suby, r, g, b; |
| 549 |
color_r = color_g = color_b = 0; |
| 550 |
for (suby=0; suby<scaledown; suby++) |
| 551 |
for (subx=0; subx<scaledown; subx++) { |
| 552 |
int fb_x, fb_y, fb_addr, c; |
| 553 |
|
| 554 |
fb_x = x * scaledown + subx; |
| 555 |
fb_y = y * scaledown + suby; |
| 556 |
fb_addr = fb_y * d->xsize + fb_x; |
| 557 |
/* fb_addr is which _byte_ in framebuffer */ |
| 558 |
c = d->framebuffer[fb_addr] * 3; |
| 559 |
r = d->rgb_palette[c + 0]; |
| 560 |
g = d->rgb_palette[c + 1]; |
| 561 |
b = d->rgb_palette[c + 2]; |
| 562 |
color_r += r; |
| 563 |
color_g += g; |
| 564 |
color_b += b; |
| 565 |
} |
| 566 |
|
| 567 |
r = color_r / scaledownXscaledown; |
| 568 |
g = color_g / scaledownXscaledown; |
| 569 |
b = color_b / scaledownXscaledown; |
| 570 |
macro_put_pixel(); |
| 571 |
x++; |
| 572 |
} |
| 573 |
} else { |
| 574 |
/* Generic > 8 bit bit-depth: */ |
| 575 |
for (pixel=0; pixel<npixels; pixel++) { |
| 576 |
int subx, suby, r, g, b; |
| 577 |
color_r = color_g = color_b = 0; |
| 578 |
for (suby=0; suby<scaledown; suby++) |
| 579 |
for (subx=0; subx<scaledown; subx++) { |
| 580 |
int fb_x, fb_y, fb_addr; |
| 581 |
|
| 582 |
fb_x = x * scaledown + subx; |
| 583 |
fb_y = y * scaledown + suby; |
| 584 |
fb_addr = fb_y * d->xsize + fb_x; |
| 585 |
fb_addr = (fb_addr * d->bit_depth) >> 3; |
| 586 |
/* fb_addr is which _byte_ in framebuffer */ |
| 587 |
|
| 588 |
/* > 8 bits color. */ |
| 589 |
switch (d->bit_depth) { |
| 590 |
case 24: |
| 591 |
r = d->framebuffer[fb_addr]; |
| 592 |
g = d->framebuffer[fb_addr + 1]; |
| 593 |
b = d->framebuffer[fb_addr + 2]; |
| 594 |
break; |
| 595 |
default: |
| 596 |
r = g = b = random() & 255; |
| 597 |
} |
| 598 |
color_r += r; |
| 599 |
color_g += g; |
| 600 |
color_b += b; |
| 601 |
} |
| 602 |
r = color_r / scaledownXscaledown; |
| 603 |
g = color_g / scaledownXscaledown; |
| 604 |
b = color_b / scaledownXscaledown; |
| 605 |
macro_put_pixel(); |
| 606 |
x++; |
| 607 |
} |
| 608 |
} |
| 609 |
} |
| 610 |
|
| 611 |
|
| 612 |
/* |
| 613 |
* dev_fb_tick(): |
| 614 |
* |
| 615 |
*/ |
| 616 |
void dev_fb_tick(struct cpu *cpu, void *extra) |
| 617 |
{ |
| 618 |
struct vfb_data *d = extra; |
| 619 |
#ifdef WITH_X11 |
| 620 |
int need_to_flush_x11 = 0; |
| 621 |
int need_to_redraw_cursor = 0; |
| 622 |
#endif |
| 623 |
|
| 624 |
if (!cpu->machine->use_x11) |
| 625 |
return; |
| 626 |
|
| 627 |
do { |
| 628 |
uint64_t high, low = (uint64_t)(int64_t) -1; |
| 629 |
int x, y; |
| 630 |
|
| 631 |
memory_device_dyntrans_access(cpu, cpu->mem, |
| 632 |
extra, &low, &high); |
| 633 |
if ((int64_t)low == -1) |
| 634 |
break; |
| 635 |
|
| 636 |
/* printf("low=%016llx high=%016llx\n", |
| 637 |
(long long)low, (long long)high); */ |
| 638 |
|
| 639 |
x = (low % d->bytes_per_line) * 8 / d->bit_depth; |
| 640 |
y = low / d->bytes_per_line; |
| 641 |
if (x < d->update_x1 || d->update_x1 == -1) |
| 642 |
d->update_x1 = x; |
| 643 |
if (x > d->update_x2 || d->update_x2 == -1) |
| 644 |
d->update_x2 = x; |
| 645 |
if (y < d->update_y1 || d->update_y1 == -1) |
| 646 |
d->update_y1 = y; |
| 647 |
if (y > d->update_y2 || d->update_y2 == -1) |
| 648 |
d->update_y2 = y; |
| 649 |
|
| 650 |
x = ((low+7) % d->bytes_per_line) * 8 / d->bit_depth; |
| 651 |
y = (low+7) / d->bytes_per_line; |
| 652 |
if (x < d->update_x1 || d->update_x1 == -1) |
| 653 |
d->update_x1 = x; |
| 654 |
if (x > d->update_x2 || d->update_x2 == -1) |
| 655 |
d->update_x2 = x; |
| 656 |
if (y < d->update_y1 || d->update_y1 == -1) |
| 657 |
d->update_y1 = y; |
| 658 |
if (y > d->update_y2 || d->update_y2 == -1) |
| 659 |
d->update_y2 = y; |
| 660 |
|
| 661 |
x = (high % d->bytes_per_line) * 8 / d->bit_depth; |
| 662 |
y = high / d->bytes_per_line; |
| 663 |
if (x < d->update_x1 || d->update_x1 == -1) |
| 664 |
d->update_x1 = x; |
| 665 |
if (x > d->update_x2 || d->update_x2 == -1) |
| 666 |
d->update_x2 = x; |
| 667 |
if (y < d->update_y1 || d->update_y1 == -1) |
| 668 |
d->update_y1 = y; |
| 669 |
if (y > d->update_y2 || d->update_y2 == -1) |
| 670 |
d->update_y2 = y; |
| 671 |
|
| 672 |
x = ((high+7) % d->bytes_per_line) * 8 / d->bit_depth; |
| 673 |
y = (high+7) / d->bytes_per_line; |
| 674 |
if (x < d->update_x1 || d->update_x1 == -1) |
| 675 |
d->update_x1 = x; |
| 676 |
if (x > d->update_x2 || d->update_x2 == -1) |
| 677 |
d->update_x2 = x; |
| 678 |
if (y < d->update_y1 || d->update_y1 == -1) |
| 679 |
d->update_y1 = y; |
| 680 |
if (y > d->update_y2 || d->update_y2 == -1) |
| 681 |
d->update_y2 = y; |
| 682 |
|
| 683 |
/* |
| 684 |
* An update covering more than one line will automatically |
| 685 |
* force an update of all the affected lines: |
| 686 |
*/ |
| 687 |
if (d->update_y1 != d->update_y2) { |
| 688 |
d->update_x1 = 0; |
| 689 |
d->update_x2 = d->xsize-1; |
| 690 |
} |
| 691 |
} while (0); |
| 692 |
|
| 693 |
#ifdef WITH_X11 |
| 694 |
/* Do we need to redraw the cursor? */ |
| 695 |
if (d->fb_window->cursor_on != d->fb_window->OLD_cursor_on || |
| 696 |
d->fb_window->cursor_x != d->fb_window->OLD_cursor_x || |
| 697 |
d->fb_window->cursor_y != d->fb_window->OLD_cursor_y || |
| 698 |
d->fb_window->cursor_xsize != d->fb_window->OLD_cursor_xsize || |
| 699 |
d->fb_window->cursor_ysize != d->fb_window->OLD_cursor_ysize) |
| 700 |
need_to_redraw_cursor = 1; |
| 701 |
|
| 702 |
if (d->update_x2 != -1) { |
| 703 |
if (((d->update_x1 >= d->fb_window->OLD_cursor_x && |
| 704 |
d->update_x1 < (d->fb_window->OLD_cursor_x + |
| 705 |
d->fb_window->OLD_cursor_xsize)) || |
| 706 |
(d->update_x2 >= d->fb_window->OLD_cursor_x && |
| 707 |
d->update_x2 < (d->fb_window->OLD_cursor_x + |
| 708 |
d->fb_window->OLD_cursor_xsize)) || |
| 709 |
(d->update_x1 < d->fb_window->OLD_cursor_x && |
| 710 |
d->update_x2 >= (d->fb_window->OLD_cursor_x + |
| 711 |
d->fb_window->OLD_cursor_xsize)) ) && |
| 712 |
( (d->update_y1 >= d->fb_window->OLD_cursor_y && |
| 713 |
d->update_y1 < (d->fb_window->OLD_cursor_y + |
| 714 |
d->fb_window->OLD_cursor_ysize)) || |
| 715 |
(d->update_y2 >= d->fb_window->OLD_cursor_y && |
| 716 |
d->update_y2 < (d->fb_window->OLD_cursor_y + |
| 717 |
d->fb_window->OLD_cursor_ysize)) || |
| 718 |
(d->update_y1 < d->fb_window->OLD_cursor_y && |
| 719 |
d->update_y2 >= (d->fb_window->OLD_cursor_y + |
| 720 |
d->fb_window->OLD_cursor_ysize)) ) ) |
| 721 |
need_to_redraw_cursor = 1; |
| 722 |
} |
| 723 |
|
| 724 |
if (need_to_redraw_cursor) { |
| 725 |
/* Remove old cursor, if any: */ |
| 726 |
if (d->fb_window->OLD_cursor_on) { |
| 727 |
XPutImage(d->fb_window->x11_display, |
| 728 |
d->fb_window->x11_fb_window, |
| 729 |
d->fb_window->x11_fb_gc, d->fb_window->fb_ximage, |
| 730 |
d->fb_window->OLD_cursor_x/d->vfb_scaledown, |
| 731 |
d->fb_window->OLD_cursor_y/d->vfb_scaledown, |
| 732 |
d->fb_window->OLD_cursor_x/d->vfb_scaledown, |
| 733 |
d->fb_window->OLD_cursor_y/d->vfb_scaledown, |
| 734 |
d->fb_window->OLD_cursor_xsize/d->vfb_scaledown + 1, |
| 735 |
d->fb_window->OLD_cursor_ysize/d->vfb_scaledown +1); |
| 736 |
} |
| 737 |
} |
| 738 |
#endif |
| 739 |
|
| 740 |
if (d->update_x2 != -1) { |
| 741 |
int y, addr, addr2, q = d->vfb_scaledown; |
| 742 |
|
| 743 |
if (d->update_x1 >= d->visible_xsize) |
| 744 |
d->update_x1 = d->visible_xsize - 1; |
| 745 |
if (d->update_x2 >= d->visible_xsize) |
| 746 |
d->update_x2 = d->visible_xsize - 1; |
| 747 |
if (d->update_y1 >= d->visible_ysize) |
| 748 |
d->update_y1 = d->visible_ysize - 1; |
| 749 |
if (d->update_y2 >= d->visible_ysize) |
| 750 |
d->update_y2 = d->visible_ysize - 1; |
| 751 |
|
| 752 |
/* Without these, we might miss the rightmost/bottom pixel: */ |
| 753 |
d->update_x2 += (q - 1); |
| 754 |
d->update_y2 += (q - 1); |
| 755 |
|
| 756 |
d->update_x1 = d->update_x1 / q * q; |
| 757 |
d->update_x2 = d->update_x2 / q * q; |
| 758 |
d->update_y1 = d->update_y1 / q * q; |
| 759 |
d->update_y2 = d->update_y2 / q * q; |
| 760 |
|
| 761 |
addr = d->update_y1 * d->bytes_per_line + |
| 762 |
d->update_x1 * d->bit_depth / 8; |
| 763 |
addr2 = d->update_y1 * d->bytes_per_line + |
| 764 |
d->update_x2 * d->bit_depth / 8; |
| 765 |
|
| 766 |
for (y=d->update_y1; y<=d->update_y2; y+=q) { |
| 767 |
update_framebuffer(d, addr, addr2 - addr); |
| 768 |
addr += d->bytes_per_line * q; |
| 769 |
addr2 += d->bytes_per_line * q; |
| 770 |
} |
| 771 |
|
| 772 |
#ifdef WITH_X11 |
| 773 |
XPutImage(d->fb_window->x11_display, d->fb_window-> |
| 774 |
x11_fb_window, d->fb_window->x11_fb_gc, d->fb_window-> |
| 775 |
fb_ximage, d->update_x1/d->vfb_scaledown, d->update_y1/ |
| 776 |
d->vfb_scaledown, d->update_x1/d->vfb_scaledown, |
| 777 |
d->update_y1/d->vfb_scaledown, |
| 778 |
(d->update_x2 - d->update_x1)/d->vfb_scaledown + 1, |
| 779 |
(d->update_y2 - d->update_y1)/d->vfb_scaledown + 1); |
| 780 |
|
| 781 |
need_to_flush_x11 = 1; |
| 782 |
#endif |
| 783 |
|
| 784 |
d->update_x1 = d->update_y1 = 99999; |
| 785 |
d->update_x2 = d->update_y2 = -1; |
| 786 |
} |
| 787 |
|
| 788 |
#ifdef WITH_X11 |
| 789 |
if (need_to_redraw_cursor) { |
| 790 |
/* Paint new cursor: */ |
| 791 |
if (d->fb_window->cursor_on) { |
| 792 |
x11_redraw_cursor(cpu->machine, |
| 793 |
d->fb_window->fb_number); |
| 794 |
d->fb_window->OLD_cursor_on = d->fb_window->cursor_on; |
| 795 |
d->fb_window->OLD_cursor_x = d->fb_window->cursor_x; |
| 796 |
d->fb_window->OLD_cursor_y = d->fb_window->cursor_y; |
| 797 |
d->fb_window->OLD_cursor_xsize = d->fb_window-> |
| 798 |
cursor_xsize; |
| 799 |
d->fb_window->OLD_cursor_ysize = d->fb_window-> |
| 800 |
cursor_ysize; |
| 801 |
} |
| 802 |
} |
| 803 |
#endif |
| 804 |
|
| 805 |
#ifdef WITH_X11 |
| 806 |
if (need_to_flush_x11) |
| 807 |
XFlush(d->fb_window->x11_display); |
| 808 |
#endif |
| 809 |
} |
| 810 |
|
| 811 |
|
| 812 |
/* |
| 813 |
* dev_fb_access(): |
| 814 |
*/ |
| 815 |
int dev_fb_access(struct cpu *cpu, struct memory *mem, |
| 816 |
uint64_t relative_addr, unsigned char *data, size_t len, |
| 817 |
int writeflag, void *extra) |
| 818 |
{ |
| 819 |
struct vfb_data *d = extra; |
| 820 |
int i; |
| 821 |
|
| 822 |
#ifdef FB_DEBUG |
| 823 |
if (writeflag == MEM_WRITE) { if (data[0]) { |
| 824 |
fatal("[ dev_fb: write to addr=%08lx, data = ", |
| 825 |
(long)relative_addr); |
| 826 |
for (i=0; i<len; i++) |
| 827 |
fatal("%02x ", data[i]); |
| 828 |
fatal("]\n"); |
| 829 |
} else { |
| 830 |
fatal("[ dev_fb: read from addr=%08lx, data = ", |
| 831 |
(long)relative_addr); |
| 832 |
for (i=0; i<len; i++) |
| 833 |
fatal("%02x ", d->framebuffer[relative_addr + i]); |
| 834 |
fatal("]\n"); |
| 835 |
} |
| 836 |
#endif |
| 837 |
|
| 838 |
if (relative_addr >= d->framebuffer_size) |
| 839 |
return 0; |
| 840 |
|
| 841 |
/* See if a write actually modifies the framebuffer contents: */ |
| 842 |
if (writeflag == MEM_WRITE) { |
| 843 |
for (i=0; i<len; i++) { |
| 844 |
if (data[i] != d->framebuffer[relative_addr + i]) |
| 845 |
break; |
| 846 |
|
| 847 |
/* If all bytes are equal to what is already stored |
| 848 |
in the framebuffer, then simply return: */ |
| 849 |
if (i==len-1) |
| 850 |
return 1; |
| 851 |
} |
| 852 |
} |
| 853 |
|
| 854 |
/* |
| 855 |
* If the framebuffer is modified, then we should keep a track |
| 856 |
* of which area(s) we modify, so that the display isn't updated |
| 857 |
* unnecessarily. |
| 858 |
*/ |
| 859 |
if (writeflag == MEM_WRITE && cpu->machine->use_x11) { |
| 860 |
int x, y, x2,y2; |
| 861 |
|
| 862 |
x = (relative_addr % d->bytes_per_line) * 8 / d->bit_depth; |
| 863 |
y = relative_addr / d->bytes_per_line; |
| 864 |
x2 = ((relative_addr + len) % d->bytes_per_line) |
| 865 |
* 8 / d->bit_depth; |
| 866 |
y2 = (relative_addr + len) / d->bytes_per_line; |
| 867 |
|
| 868 |
if (x < d->update_x1 || d->update_x1 == -1) |
| 869 |
d->update_x1 = x; |
| 870 |
if (x > d->update_x2 || d->update_x2 == -1) |
| 871 |
d->update_x2 = x; |
| 872 |
|
| 873 |
if (y < d->update_y1 || d->update_y1 == -1) |
| 874 |
d->update_y1 = y; |
| 875 |
if (y > d->update_y2 || d->update_y2 == -1) |
| 876 |
d->update_y2 = y; |
| 877 |
|
| 878 |
if (x2 < d->update_x1 || d->update_x1 == -1) |
| 879 |
d->update_x1 = x2; |
| 880 |
if (x2 > d->update_x2 || d->update_x2 == -1) |
| 881 |
d->update_x2 = x2; |
| 882 |
|
| 883 |
if (y2 < d->update_y1 || d->update_y1 == -1) |
| 884 |
d->update_y1 = y2; |
| 885 |
if (y2 > d->update_y2 || d->update_y2 == -1) |
| 886 |
d->update_y2 = y2; |
| 887 |
|
| 888 |
/* |
| 889 |
* An update covering more than one line will automatically |
| 890 |
* force an update of all the affected lines: |
| 891 |
*/ |
| 892 |
if (y != y2) { |
| 893 |
d->update_x1 = 0; |
| 894 |
d->update_x2 = d->xsize-1; |
| 895 |
} |
| 896 |
} |
| 897 |
|
| 898 |
/* |
| 899 |
* Read from/write to the framebuffer: |
| 900 |
* (TODO: take the color_plane_mask into account) |
| 901 |
* |
| 902 |
* Calling memcpy() is probably overkill, as it usually is just one |
| 903 |
* or a few bytes that are read/written at a time. |
| 904 |
*/ |
| 905 |
if (writeflag == MEM_WRITE) { |
| 906 |
if (len > 8) |
| 907 |
memcpy(d->framebuffer + relative_addr, data, len); |
| 908 |
else |
| 909 |
for (i=0; i<len; i++) |
| 910 |
d->framebuffer[relative_addr + i] = data[i]; |
| 911 |
} else { |
| 912 |
if (len > 8) |
| 913 |
memcpy(data, d->framebuffer + relative_addr, len); |
| 914 |
else |
| 915 |
for (i=0; i<len; i++) |
| 916 |
data[i] = d->framebuffer[relative_addr + i]; |
| 917 |
} |
| 918 |
|
| 919 |
return 1; |
| 920 |
} |
| 921 |
|
| 922 |
|
| 923 |
/* |
| 924 |
* dev_fb_init(): |
| 925 |
* |
| 926 |
* This function is big and ugly, but the point is to initialize a framebuffer |
| 927 |
* device. :-) |
| 928 |
* |
| 929 |
* visible_xsize and visible_ysize are the sizes of the visible display area. |
| 930 |
* xsize and ysize tell how much memory is actually allocated (for example |
| 931 |
* visible_xsize could be 640, but xsize could be 1024, for better alignment). |
| 932 |
* |
| 933 |
* vfb_type is useful for selecting special features. |
| 934 |
* |
| 935 |
* type = VFB_GENERIC is the most useful type, especially when bit_depth = 24. |
| 936 |
* |
| 937 |
* VFB_DEC_VFB01, _VFB02, and VFB_DEC_MAXINE are DECstation specific. |
| 938 |
* |
| 939 |
* If type is VFB_HPC, then color encoding differs from the generic case. |
| 940 |
* |
| 941 |
* If bit_depth = -15 (note the minus sign), then a special hack is used for |
| 942 |
* the Playstation Portable's 5-bit R, 5-bit G, 5-bit B. |
| 943 |
*/ |
| 944 |
struct vfb_data *dev_fb_init(struct machine *machine, struct memory *mem, |
| 945 |
uint64_t baseaddr, int vfb_type, int visible_xsize, int visible_ysize, |
| 946 |
int xsize, int ysize, int bit_depth, char *name) |
| 947 |
{ |
| 948 |
struct vfb_data *d; |
| 949 |
size_t size, nlen; |
| 950 |
int flags; |
| 951 |
char title[400]; |
| 952 |
char *name2; |
| 953 |
|
| 954 |
d = malloc(sizeof(struct vfb_data)); |
| 955 |
if (d == NULL) { |
| 956 |
fprintf(stderr, "out of memory\n"); |
| 957 |
exit(1); |
| 958 |
} |
| 959 |
memset(d, 0, sizeof(struct vfb_data)); |
| 960 |
|
| 961 |
d->vfb_type = vfb_type; |
| 962 |
|
| 963 |
/* Defaults: */ |
| 964 |
d->xsize = xsize; d->visible_xsize = visible_xsize; |
| 965 |
d->ysize = ysize; d->visible_ysize = visible_ysize; |
| 966 |
|
| 967 |
d->bit_depth = bit_depth; |
| 968 |
|
| 969 |
if (bit_depth == 15) { |
| 970 |
d->color32k = 1; |
| 971 |
bit_depth = d->bit_depth = 16; |
| 972 |
} else if (bit_depth == -15) { |
| 973 |
d->psp_15bit = 1; |
| 974 |
bit_depth = d->bit_depth = 16; |
| 975 |
} |
| 976 |
|
| 977 |
/* Specific types: */ |
| 978 |
switch (vfb_type) { |
| 979 |
case VFB_DEC_VFB01: |
| 980 |
/* DECstation VFB01 (monochrome) */ |
| 981 |
d->xsize = 2048; d->visible_xsize = 1024; |
| 982 |
d->ysize = 1024; d->visible_ysize = 864; |
| 983 |
d->bit_depth = 1; |
| 984 |
break; |
| 985 |
case VFB_DEC_VFB02: |
| 986 |
/* DECstation VFB02 (color) */ |
| 987 |
d->xsize = 1024; d->visible_xsize = 1024; |
| 988 |
d->ysize = 1024; d->visible_ysize = 864; |
| 989 |
d->bit_depth = 8; |
| 990 |
break; |
| 991 |
case VFB_DEC_MAXINE: |
| 992 |
/* DECstation Maxine (1024x768x8) */ |
| 993 |
d->xsize = 1024; d->visible_xsize = d->xsize; |
| 994 |
d->ysize = 768; d->visible_ysize = d->ysize; |
| 995 |
d->bit_depth = 8; |
| 996 |
break; |
| 997 |
case VFB_PLAYSTATION2: |
| 998 |
/* Playstation 2 */ |
| 999 |
d->xsize = xsize; d->visible_xsize = d->xsize; |
| 1000 |
d->ysize = ysize; d->visible_ysize = d->ysize; |
| 1001 |
d->bit_depth = 24; |
| 1002 |
break; |
| 1003 |
default: |
| 1004 |
; |
| 1005 |
} |
| 1006 |
|
| 1007 |
if (d->bit_depth == 2 || d->bit_depth == 4) |
| 1008 |
set_grayscale_palette(d, 1 << d->bit_depth); |
| 1009 |
else if (d->bit_depth == 8 || d->bit_depth == 1) |
| 1010 |
set_blackwhite_palette(d, 1 << d->bit_depth); |
| 1011 |
|
| 1012 |
d->vfb_scaledown = machine->x11_scaledown; |
| 1013 |
|
| 1014 |
d->bytes_per_line = d->xsize * d->bit_depth / 8; |
| 1015 |
size = d->ysize * d->bytes_per_line; |
| 1016 |
|
| 1017 |
d->framebuffer = malloc(size); |
| 1018 |
if (d->framebuffer == NULL) { |
| 1019 |
fprintf(stderr, "out of memory\n"); |
| 1020 |
exit(1); |
| 1021 |
} |
| 1022 |
|
| 1023 |
/* Clear the framebuffer (all black pixels): */ |
| 1024 |
d->framebuffer_size = size; |
| 1025 |
memset(d->framebuffer, 0, size); |
| 1026 |
|
| 1027 |
d->x11_xsize = d->visible_xsize / d->vfb_scaledown; |
| 1028 |
d->x11_ysize = d->visible_ysize / d->vfb_scaledown; |
| 1029 |
|
| 1030 |
d->update_x1 = d->update_y1 = 99999; |
| 1031 |
d->update_x2 = d->update_y2 = -1; |
| 1032 |
|
| 1033 |
|
| 1034 |
/* Don't set the title to include the size of the framebuffer for |
| 1035 |
VGA, since then the resolution might change during runtime. */ |
| 1036 |
if (strcmp(name, "VGA") == 0) |
| 1037 |
snprintf(title, sizeof(title),"GXemul: %s framebuffer", name); |
| 1038 |
else |
| 1039 |
snprintf(title, sizeof(title),"GXemul: %ix%ix%i %s framebuffer", |
| 1040 |
d->visible_xsize, d->visible_ysize, d->bit_depth, name); |
| 1041 |
title[sizeof(title)-1] = '\0'; |
| 1042 |
|
| 1043 |
#ifdef WITH_X11 |
| 1044 |
if (machine->use_x11) |
| 1045 |
d->fb_window = x11_fb_init(d->x11_xsize, d->x11_ysize, |
| 1046 |
title, machine->x11_scaledown, machine); |
| 1047 |
else |
| 1048 |
#endif |
| 1049 |
d->fb_window = NULL; |
| 1050 |
|
| 1051 |
nlen = strlen(name) + 10; |
| 1052 |
name2 = malloc(nlen); |
| 1053 |
if (name2 == NULL) { |
| 1054 |
fprintf(stderr, "out of memory in dev_fb_init()\n"); |
| 1055 |
exit(1); |
| 1056 |
} |
| 1057 |
snprintf(name2, nlen, "fb [%s]", name); |
| 1058 |
|
| 1059 |
flags = DM_DEFAULT; |
| 1060 |
if ((baseaddr & 0xfff) == 0) |
| 1061 |
flags = DM_DYNTRANS_OK | DM_DYNTRANS_WRITE_OK; |
| 1062 |
|
| 1063 |
flags |= DM_READS_HAVE_NO_SIDE_EFFECTS; |
| 1064 |
|
| 1065 |
memory_device_register(mem, name2, baseaddr, size, dev_fb_access, |
| 1066 |
d, flags, d->framebuffer); |
| 1067 |
|
| 1068 |
machine_add_tickfunction(machine, dev_fb_tick, d, FB_TICK_SHIFT); |
| 1069 |
return d; |
| 1070 |
} |
| 1071 |
|
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