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dpavlin |
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/* |
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dpavlin |
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* Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
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dpavlin |
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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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dpavlin |
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* $Id: dev_ps2_gif.c,v 1.33 2006/02/09 20:02:59 debug Exp $ |
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dpavlin |
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* |
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* Playstation 2 "gif" graphics device. |
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* |
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* TODO: Convert dev_fb_access() accesses into direct framebuffer reads and |
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* writes, to improve performance. |
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* |
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* TODO 2: The way things are now, rgb bytes are copied from emulated |
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* space to the framebuffer as rgb, but on X Windows servers on |
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* big-endian machines that should be bgr. (?) Hm... |
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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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#include "cpu.h" |
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#include "device.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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#define DEV_PS2_GIF_LENGTH 0x10000 |
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#define PS2_FB_ADDR 0x60000000ULL /* hopefully nothing else here */ |
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struct gif_data { |
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struct cpu *cpu; |
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int xsize, ysize; |
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int bytes_per_pixel; |
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int transparent_text; |
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struct vfb_data *vfb_data; |
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}; |
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/* |
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* test_triangle(): |
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* |
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* Draw a triangle: |
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*/ |
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void test_triangle(struct gif_data *d, |
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int x1, int y1, int r1, int g1, int b1, |
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int x2, int y2, int r2, int g2, int b2, |
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int x3, int y3, int r3, int g3, int b3) |
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{ |
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unsigned char *line = malloc(d->xsize * d->bytes_per_pixel); |
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int y, tmp, scale = 32768; |
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int xofs, xlen, savedxlen, xdir, x; |
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int r, g, b; /* scaled */ |
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int xstart, xstop; /* scaled */ |
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int rstart, rstop; /* scaled */ |
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int gstart, gstop; /* scaled */ |
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int bstart, bstop; /* scaled */ |
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int rpx, gpx, bpx; /* scaled */ |
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int xpy12, xpy13, xpy23; |
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int rpy12, rpy13, rpy23; |
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int gpy12, gpy13, gpy23; |
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int bpy12, bpy13, bpy23; |
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if (y2 > y3) { |
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tmp = x2; x2 = x3; x3 = tmp; |
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tmp = y2; y2 = y3; y3 = tmp; |
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tmp = r2; r2 = r3; r3 = tmp; |
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tmp = g2; g2 = g3; g3 = tmp; |
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tmp = b2; b2 = b3; b3 = tmp; |
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} |
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if (y1 > y2) { |
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tmp = x1; x1 = x2; x2 = tmp; |
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tmp = y1; y1 = y2; y2 = tmp; |
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tmp = r1; r1 = r2; r2 = tmp; |
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tmp = g1; g1 = g2; g2 = tmp; |
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tmp = b1; b1 = b2; b2 = tmp; |
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} |
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if (y1 > y3) { |
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tmp = x1; x1 = x3; x3 = tmp; |
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tmp = y1; y1 = y3; y3 = tmp; |
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tmp = r1; r1 = r3; r3 = tmp; |
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tmp = g1; g1 = g3; g3 = tmp; |
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tmp = b1; b1 = b3; b3 = tmp; |
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} |
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/* X change per line: */ |
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xpy12 = (y2-y1)? scale*(x2-x1)/(y2-y1) : 0; |
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xpy13 = (y3-y1)? scale*(x3-x1)/(y3-y1) : 0; |
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xpy23 = (y3-y2)? scale*(x3-x2)/(y3-y2) : 0; |
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/* Color change per line: */ |
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rpy12 = (y2-y1)? scale*(r2-r1)/(y2-y1) : 0; |
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rpy13 = (y3-y1)? scale*(r3-r1)/(y3-y1) : 0; |
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rpy23 = (y3-y2)? scale*(r3-r2)/(y3-y2) : 0; |
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gpy12 = (y2-y1)? scale*(g2-g1)/(y2-y1) : 0; |
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gpy13 = (y3-y1)? scale*(g3-g1)/(y3-y1) : 0; |
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gpy23 = (y3-y2)? scale*(g3-g2)/(y3-y2) : 0; |
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bpy12 = (y2-y1)? scale*(b2-b1)/(y2-y1) : 0; |
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bpy13 = (y3-y1)? scale*(b3-b1)/(y3-y1) : 0; |
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bpy23 = (y3-y2)? scale*(b3-b2)/(y3-y2) : 0; |
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xstart = xstop = x1 * scale; |
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rstart = rstop = r1 * scale; |
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gstart = gstop = g1 * scale; |
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bstart = bstop = b1 * scale; |
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for (y=y1; y<=y3; y++) { |
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if (xstart < xstop) |
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xofs = xstart/scale, xlen = (xstop-xstart)/scale + 1; |
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else |
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xofs = xstop/scale, xlen = (xstart-xstop)/scale + 1; |
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savedxlen = xlen; |
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xdir = (xstart < xstop)? 1 : -1; |
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r = rstart; g = gstart; b = bstart; |
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rpx = (xstop-xstart)? (rstop-rstart) / ((xstop-xstart) |
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/ scale) : 0; |
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gpx = (xstop-xstart)? (gstop-gstart) / ((xstop-xstart) |
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/ scale) : 0; |
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bpx = (xstop-xstart)? (bstop-bstart) / ((xstop-xstart) |
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/ scale): 0; |
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x = xstart / scale; |
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while (xlen > 0) { |
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if (x>=0 && x<d->xsize) { |
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int c; |
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c = r/scale; |
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line[x * d->bytes_per_pixel + 0] = c<0? |
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0 : (c > 255? 255 : c); |
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c = g/scale; |
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line[x * d->bytes_per_pixel + 1] = c<0? |
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0 : (c > 255? 255 : c); |
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c = b/scale; |
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line[x * d->bytes_per_pixel + 2] = c<0? |
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0 : (c > 255? 255 : c); |
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} |
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r += rpx; |
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g += gpx; |
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b += bpx; |
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x += xdir; |
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xlen --; |
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} |
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dev_fb_access(d->cpu, d->cpu->mem, |
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(y*d->xsize + xofs) * d->bytes_per_pixel, |
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line + xofs * d->bytes_per_pixel, |
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savedxlen * d->bytes_per_pixel, |
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MEM_WRITE, d->vfb_data); |
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if (y<y2) { |
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xstart += xpy12; |
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rstart += rpy12; |
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gstart += gpy12; |
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bstart += bpy12; |
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} else { |
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xstart += xpy23; |
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rstart += rpy23; |
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gstart += gpy23; |
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bstart += bpy23; |
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} |
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xstop += xpy13; |
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rstop += rpy13; |
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gstop += gpy13; |
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bstop += bpy13; |
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if (y==y2) { |
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xstart = x2 * scale; |
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rstart = r2 * scale; |
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gstart = g2 * scale; |
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bstart = b2 * scale; |
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} |
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} |
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} |
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/* |
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* dev_ps2_gif_access(): |
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*/ |
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dpavlin |
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DEVICE_ACCESS(ps2_gif) |
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dpavlin |
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{ |
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dpavlin |
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unsigned int i; |
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dpavlin |
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struct gif_data *d = extra; |
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if (relative_addr + len > DEV_PS2_GIF_LENGTH) |
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return 0; |
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if (writeflag==MEM_READ) { |
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debug("[ gif read from addr 0x%x, len=%i ]\n", |
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(int)relative_addr, (int)len); |
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} else { |
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if (data[0] == 0x08 && data[1] == 0x80) { |
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/* Possibly "initialize 640x480 mode": */ |
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debug("[ gif: initialize video mode (?) ]\n"); |
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} else if (data[0] == 0x04 && data[1] == 0x00 && len > 300) { |
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/* Possibly "output 8x16 character": */ |
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int xbase, ybase, xsize, ysize, x, y; |
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xbase = data[9*4 + 0] + (data[9*4 + 1] << 8); |
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ybase = data[9*4 + 2] + (data[9*4 + 3] << 8); |
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xsize = data[12*4 + 0] + (data[12*4 + 1] << 8); |
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ysize = data[13*4 + 0] + (data[13*4 + 1] << 8); |
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ysize &= ~0xf; /* multple of 16 */ |
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/* debug("[ gif: putchar at (%i,%i), size (%i,%i) " |
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"]\n", xbase, ybase, xsize, ysize); */ |
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/* |
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* NetBSD and Linux: |
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* |
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dpavlin |
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* [ gif write to addr 0x0 (len=608): |
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* 04 00 00 00 00 00 00 10, 0e 00 00 00 00 00 00 00, |
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* 00 00 00 00 00 00 0a 00, 50 00 00 00 00 00 00 00, |
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* 00 00 00 00 00 00 00 00, 51 00 00 00 00 00 00 00, |
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* 08 00 00 00 16 00 00 00, 52 00 00 00 00 00 00 00, |
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* 00 00 00 00 00 00 00 00, 53 00 00 00 00 00 00 00, |
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* 20 80 00 00 00 00 00 08, 00 00 00 00 00 00 00 00, |
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* 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, |
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* 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, |
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* aa aa 00 80 aa aa 00 80, 00 00 aa 80 00 00 aa 80, |
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* 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, |
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dpavlin |
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*/ |
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/* |
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fatal("[ gif write to addr 0x%x (len=%i):", |
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(int)relative_addr, (int)len); |
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for (i=0; i<len; i++) { |
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fatal(" %02x", data[i]); |
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if ((i & 7) == 7) |
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fatal(","); |
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if ((i & 31) == 31) |
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fatal("\n"); |
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} |
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fatal(" ]\n"); |
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*/ |
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for (y=0; y<ysize; y++) { |
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int fb_addr = (xbase + (ybase+y) * d->xsize) |
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* d->bytes_per_pixel; |
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int addr = (24 + y*xsize) * 4; |
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for (x=0; x<xsize; x++) { |
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dpavlin |
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/* There are three bytes (r,g,b) at |
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data[addr + 0] .. [addr + 2]. |
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TODO: This should be translated to a |
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direct update of the framebuffer. */ |
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dpavlin |
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dev_fb_access(d->cpu, d->cpu->mem, |
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dpavlin |
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fb_addr, data + addr, 3, MEM_WRITE, |
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d->vfb_data); |
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dpavlin |
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fb_addr += d->bytes_per_pixel; |
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addr += 4; |
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} |
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} |
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dpavlin |
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} else if (data[0] == 0x04 && data[1] == 0x80 && len == 0x50) { |
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/* blockcopy */ |
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dpavlin |
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int y_source, y_dest, x_source, x_dest, x_size, y_size; |
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x_source = data[8*4 + 0] + ((data[8*4 + 1]) << 8); |
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y_source = data[8*4 + 2] + ((data[8*4 + 3]) << 8); |
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x_dest = data[9*4 + 0] + ((data[9*4 + 1]) << 8); |
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y_dest = data[9*4 + 2] + ((data[9*4 + 3]) << 8); |
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x_size = data[12*4 + 0] + ((data[12*4 + 1]) << 8); |
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y_size = data[13*4 + 0] + ((data[13*4 + 1]) << 8); |
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dpavlin |
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/* debug("[ gif: blockcopy (%i,%i) -> (%i,%i), size=" |
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"(%i,%i) ]\n", x_source,y_source, x_dest,y_dest, |
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x_size,y_size); */ |
299 |
dpavlin |
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300 |
dpavlin |
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framebuffer_blockcopyfill(d->vfb_data, 0, 0,0,0, |
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x_dest, y_dest, x_dest + x_size - 1, y_dest + |
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y_size - 1, x_source, y_source); |
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} else if (data[8] == 0x10 && data[9] == 0x55 && len == 48) { |
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/* Linux "clear": This is used by linux to clear the |
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lowest 16 pixels of the framebuffer. */ |
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dpavlin |
4 |
int xbase, ybase, xend, yend; |
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xbase = (data[8*4 + 0] + (data[8*4 + 1] << 8)) / 16; |
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ybase = (data[8*4 + 2] + (data[8*4 + 3] << 8)) / 16; |
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xend = (data[8*5 + 0] + (data[8*5 + 1] << 8)) / 16; |
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yend = (data[8*5 + 2] + (data[8*5 + 3] << 8)) / 16; |
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dpavlin |
22 |
/* debug("[ gif: linux \"clear\" (%i,%i)-(%i,%i) ]\n", |
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xbase, ybase, xend, yend); */ |
315 |
dpavlin |
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316 |
dpavlin |
22 |
framebuffer_blockcopyfill(d->vfb_data, 1, 0,0,0, |
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xbase, ybase, xend - 1, yend - 1, 0,0); |
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} else if (data[0] == 0x07 && data[1] == 0x80 && len == 128) { |
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/* NetBSD "output cursor": */ |
320 |
dpavlin |
4 |
int xbase, ybase, xend, yend, x, y; |
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xbase = (data[20*4 + 0] + (data[20*4 + 1] << 8)) / 16; |
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ybase = (data[20*4 + 2] + (data[20*4 + 3] << 8)) / 16; |
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xend = (data[28*4 + 0] + (data[28*4 + 1] << 8)) / 16; |
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yend = (data[28*4 + 2] + (data[28*4 + 3] << 8)) / 16; |
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dpavlin |
22 |
/* debug("[ gif: NETBSD cursor at (%i,%i)-(%i,%i) ]\n", |
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xbase, ybase, xend, yend); */ |
329 |
dpavlin |
4 |
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/* Output the cursor to framebuffer memory: */ |
331 |
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for (y=ybase; y<=yend; y++) |
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for (x=xbase; x<=xend; x++) { |
334 |
dpavlin |
22 |
int fb_addr = (x + y * d->xsize) * |
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d->bytes_per_pixel; |
336 |
dpavlin |
4 |
unsigned char pixels[3]; |
337 |
|
|
|
338 |
|
|
dev_fb_access(d->cpu, d->cpu->mem, |
339 |
|
|
fb_addr, pixels, sizeof(pixels), |
340 |
|
|
MEM_READ, d->vfb_data); |
341 |
|
|
|
342 |
|
|
pixels[0] = 0xff - pixels[0]; |
343 |
|
|
pixels[1] = 0xff - pixels[1]; |
344 |
|
|
pixels[2] = 0xff - pixels[2]; |
345 |
|
|
|
346 |
|
|
dev_fb_access(d->cpu, d->cpu->mem, |
347 |
|
|
fb_addr, pixels, sizeof(pixels), |
348 |
|
|
MEM_WRITE, d->vfb_data); |
349 |
|
|
} |
350 |
dpavlin |
22 |
} else if (data[0] == 0x01 && data[1] == 0x00 && len == 80) { |
351 |
|
|
/* Linux "output cursor": */ |
352 |
dpavlin |
4 |
int xbase, ybase, xend, yend, x, y; |
353 |
|
|
|
354 |
|
|
xbase = (data[7*8 + 0] + (data[7*8 + 1] << 8)) / 16; |
355 |
|
|
ybase = (data[7*8 + 2] + (data[7*8 + 3] << 8)) / 16; |
356 |
|
|
xend = (data[8*8 + 0] + (data[8*8 + 1] << 8)) / 16; |
357 |
|
|
yend = (data[8*8 + 2] + (data[8*8 + 3] << 8)) / 16; |
358 |
|
|
|
359 |
dpavlin |
22 |
debug("[ gif: LINUX cursor at (%i,%i)-(%i,%i) ]\n", |
360 |
|
|
xbase, ybase, xend, yend); |
361 |
dpavlin |
4 |
|
362 |
|
|
/* Output the cursor to framebuffer memory: */ |
363 |
|
|
|
364 |
|
|
for (y=ybase; y<=yend; y++) |
365 |
|
|
for (x=xbase; x<=xend; x++) { |
366 |
dpavlin |
22 |
int fb_addr = (x + y * d->xsize) * |
367 |
|
|
d->bytes_per_pixel; |
368 |
dpavlin |
4 |
unsigned char pixels[3]; |
369 |
|
|
|
370 |
|
|
dev_fb_access(d->cpu, d->cpu->mem, |
371 |
|
|
fb_addr, pixels, sizeof(pixels), |
372 |
|
|
MEM_READ, d->vfb_data); |
373 |
|
|
|
374 |
|
|
pixels[0] = 0xff - pixels[0]; |
375 |
|
|
pixels[1] = 0xff - pixels[1]; |
376 |
|
|
pixels[2] = 0xff - pixels[2]; |
377 |
|
|
|
378 |
|
|
dev_fb_access(d->cpu, d->cpu->mem, |
379 |
|
|
fb_addr, pixels, sizeof(pixels), |
380 |
|
|
MEM_WRITE, d->vfb_data); |
381 |
|
|
} |
382 |
|
|
} else { /* Unknown command: */ |
383 |
dpavlin |
22 |
fatal("[ gif write to addr 0x%x (len=%i):", |
384 |
|
|
(int)relative_addr, len); |
385 |
dpavlin |
4 |
for (i=0; i<len; i++) |
386 |
|
|
fatal(" %02x", data[i]); |
387 |
|
|
fatal(" ]\n"); |
388 |
|
|
/* fatal("Unknown gif command.\n"); |
389 |
|
|
cpu->running = 0; |
390 |
|
|
*/ } |
391 |
|
|
} |
392 |
|
|
|
393 |
|
|
return 1; |
394 |
|
|
} |
395 |
|
|
|
396 |
|
|
|
397 |
|
|
/* |
398 |
|
|
* devinit_ps2_gif(): |
399 |
|
|
* |
400 |
|
|
* Attached to separate memory by devinit_ps2_gs(). |
401 |
|
|
*/ |
402 |
dpavlin |
22 |
DEVINIT(ps2_gif) |
403 |
dpavlin |
4 |
{ |
404 |
|
|
struct gif_data *d; |
405 |
|
|
|
406 |
|
|
d = malloc(sizeof(struct gif_data)); |
407 |
|
|
if (d == NULL) { |
408 |
|
|
fprintf(stderr, "out of memory\n"); |
409 |
|
|
exit(1); |
410 |
|
|
} |
411 |
|
|
memset(d, 0, sizeof(struct gif_data)); |
412 |
|
|
|
413 |
|
|
d->transparent_text = 0; |
414 |
|
|
d->cpu = devinit->machine->cpus[0]; /* TODO */ |
415 |
|
|
d->xsize = 640; d->ysize = 480; |
416 |
|
|
d->bytes_per_pixel = 3; |
417 |
|
|
|
418 |
|
|
d->vfb_data = dev_fb_init(devinit->machine, devinit->machine->memory, |
419 |
|
|
PS2_FB_ADDR, VFB_PLAYSTATION2, |
420 |
dpavlin |
12 |
d->xsize, d->ysize, d->xsize, d->ysize, 24, "Playstation 2"); |
421 |
dpavlin |
4 |
if (d->vfb_data == NULL) { |
422 |
|
|
fprintf(stderr, "could not initialize fb, out of memory\n"); |
423 |
|
|
exit(1); |
424 |
|
|
} |
425 |
|
|
|
426 |
|
|
#if 0 |
427 |
dpavlin |
22 |
test_triangle(d, 300,50, 255,0,0, 50,150, 0,255,0, 600,400, 0,0,255); |
428 |
|
|
test_triangle(d, 310,210, 128,32,0, 175,410, 0,32,0, |
429 |
|
|
500,470, 125,255,125); |
430 |
|
|
test_triangle(d, 100,450, 255,255,0, 250,370, 0,255,255, |
431 |
|
|
400,470, 255,0,255); |
432 |
dpavlin |
4 |
#endif |
433 |
|
|
|
434 |
|
|
memory_device_register(devinit->machine->memory, devinit->name, |
435 |
|
|
devinit->addr, DEV_PS2_GIF_LENGTH, dev_ps2_gif_access, d, |
436 |
dpavlin |
20 |
DM_DEFAULT, NULL); |
437 |
dpavlin |
4 |
|
438 |
|
|
return 1; |
439 |
|
|
} |
440 |
|
|
|