2 Copyright 2004-2005 Chris Tallon
3 Portions copyright 2004 Jon Gettler
5 This file is part of VOMP.
7 VOMP is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 VOMP is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with VOMP; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "surfacemvp.h"
25 SurfaceMVP::SurfaceMVP(int id)
28 fdOsd = Osd::getInstance()->getFD();
29 memset(&surface, 0, sizeof(osd_surface_t));
30 memset(&surface.sfc, 0, sizeof(stbgfx_sfc_t));
31 memset(&surface.map, 0, sizeof(stbgfx_map_t));
34 SurfaceMVP::~SurfaceMVP()
36 for (int i = 0; i < 3; i++)
38 if (surface.base[i]) munmap(surface.base[i], surface.map.map[i].size);
43 a = ioctl(fdOsd, GFX_FB_SFC_UNMAP, surface.sfc.handle);
44 if (a) Log::getInstance()->log("Surface", Log::ERR, "Surface unmap failed");
46 a = ioctl(fdOsd, GFX_FB_SFC_FREE, surface.sfc.handle);
47 if (a) Log::getInstance()->log("Surface", Log::ERR, "Surface destroy failed");
51 int SurfaceMVP::create(UINT width, UINT height)
54 int displayNumber = 0; // mvpmc iterates 0->15 till it gets one that works?
56 surface.sfc.width = width;
57 surface.sfc.height = height;
58 surface.sfc.flags = 0x3f1533;
60 surface.sfc.unknown = -1;
62 // r = ioctl(fdOsd, GFX_FB_SET_OSD, &displayNumber);
65 r = ioctl(fdOsd, GFX_FB_OSD_SURFACE, &displayNumber);
68 r = ioctl(fdOsd, GFX_FB_SFC_ALLOC, &surface.sfc);
71 surface.map.map[0].unknown = surface.sfc.handle;
72 r = ioctl(fdOsd, GFX_FB_MAP, &surface.map);
75 surface.base[0] = (unsigned char *)mmap(NULL, surface.map.map[0].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[0].addr);
76 if (surface.base[0] == MAP_FAILED) return 0;
78 surface.base[1] = (unsigned char *)mmap(NULL, surface.map.map[1].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[1].addr);
79 if (surface.base[1] == MAP_FAILED) return 0;
81 surface.base[2] = (unsigned char *)mmap(NULL, surface.map.map[2].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[2].addr);
82 if (surface.base[2] == MAP_FAILED) return 0;
84 // surface.display.num = displayNumber;
85 // r = ioctl(fdOsd, GFX_FB_MOVE_DISPLAY, &surface.display);
88 // r = ioctl(fdOsd, GFX_FB_SET_DISPLAY, &surface.display);
94 void SurfaceMVP::display()
96 unsigned long fb_descriptor[2];
98 fb_descriptor[0] = surface.sfc.handle;
101 ioctl(fdOsd, GFX_FB_ATTACH, fb_descriptor);
104 unsigned long SurfaceMVP::getSurfaceHandle()
106 return surface.sfc.handle;
109 // ----------------------------------------------------------------------------
111 // Now for the drawing functions
114 * RGB to YUV conversion tables
116 int SurfaceMVP::conv_YB[256];
117 int SurfaceMVP::conv_YG[256];
118 int SurfaceMVP::conv_YR[256];
119 int SurfaceMVP::conv_UB[256];
120 int SurfaceMVP::conv_UG[256];
121 int SurfaceMVP::conv_UR[256];
122 int SurfaceMVP::conv_VB[256];
123 int SurfaceMVP::conv_VG[256];
124 int SurfaceMVP::conv_VR[256];
126 int SurfaceMVP::conv_BY[256];
127 int SurfaceMVP::conv_GY[256];
128 int SurfaceMVP::conv_RY[256];
129 int SurfaceMVP::conv_BU[256];
130 int SurfaceMVP::conv_GU[256];
131 int SurfaceMVP::conv_RU[256];
132 int SurfaceMVP::conv_BV[256];
133 int SurfaceMVP::conv_GV[256];
134 int SurfaceMVP::conv_RV[256];
137 * gfx_init() - initialize the RGB to YUV conversion tables
139 void SurfaceMVP::initConversionTables(void)
143 for (i=0; i<256; i++) {
144 conv_YB[i] = (int)(0.299 * (double)i);
147 for (i=0; i<256; i++) {
148 conv_YG[i] = (int)(0.587 * (double)i);
151 for (i=0; i<256; i++) {
152 conv_YR[i] = (int)(0.114 * (double)i);
156 for (i=0; i<256; i++) {
157 conv_UB[i] = (int)(0.5 * (double)i);
158 conv_BU[i] = (int)(1.732 * (i - 128));
160 for (i=0; i<256; i++) {
161 conv_UG[i] = (int)(-0.33126 * (double)i);
162 conv_GU[i] = (int)(-0.338 * (i - 128));
164 for (i=0; i<256; i++) {
165 conv_UR[i] = (int)(-0.16874 * (double)i);
169 for (i=0; i<256; i++) {
170 conv_VB[i] = (int)(-0.08131 * (double)i);
173 for (i=0; i<256; i++) {
174 conv_VG[i] = (int)(-0.41869 * (double)i);
175 conv_GV[i] = (int)(-0.698 * (i - 128));
177 for (i=0; i<256; i++) {
178 conv_VR[i] = (int)(0.5 * (double)i);
179 conv_RV[i] = (int)(1.370 * ((double)i - 128));
184 * rgb2yuv() - convert an RGB pixel to YUV
187 void SurfaceMVP::rgb2yuv(unsigned char r, unsigned char g, unsigned char b, unsigned char *y, unsigned char *u, unsigned char *v)
191 Y = conv_YB[b] + conv_YG[g] + conv_YR[r];
192 U = conv_UB[b] + conv_UG[g] + conv_UR[r] + 128;
193 V = conv_VB[b] + conv_VG[g] + conv_VR[r] + 128;
213 int SurfaceMVP::fillblt(int x, int y, int width, int height, unsigned int c)
217 fblt.handle = surface.sfc.handle;
221 fblt.height = height;
224 return ioctl(fdOsd, GFX_FB_OSD_FILLBLT, &fblt);
227 void SurfaceMVP::drawPixel(int x, int y, unsigned int c)
230 unsigned char r, g, b, a, Y, U, V;
231 unsigned int line, remainder;
233 if ((x >= (int)surface.sfc.width) || (y >= (int)surface.sfc.height))
236 c2rgba(c, &r, &g, &b, &a);
238 rgb2yuv(r, g, b, &Y, &U, &V);
240 remainder = (surface.sfc.width % 4);
242 line = surface.sfc.width;
244 line = surface.sfc.width + (4 - remainder);
246 offset = (y * line) + x;
248 *(surface.base[0] + offset) = Y;
249 *(surface.base[1] + (offset & 0xfffffffe)) = U;
250 *(surface.base[1] + (offset & 0xfffffffe) + 1) = V;
251 *(surface.base[2] + offset) = a;
255 void SurfaceMVP::drawHorzLine(int x1, int x2, int y, unsigned int c)
257 fillblt(x1, y, x2-x1, 1, c);
260 void SurfaceMVP::drawVertLine(int x, int y1, int y2, unsigned int c)
262 fillblt(x, y1, 1, y2-y1, c);
266 /* surface update to screen needs:
267 source x distance into this surface
268 source y distance into this surface
271 destination x on screen
272 destination y on screen
274 int SurfaceMVP::updateToScreen(int sx, int sy, int w, int h, int dx, int dy) // FIXME new, replace others with this FIXME
276 return blt(fdOsd, surface.sfc.handle, sx, sy, w, h, ((SurfaceMVP*)screen)->getSurfaceHandle(), dx, dy);
279 int SurfaceMVP::blt(int fd, unsigned long shandle, int sx, int sy, int width, int height, unsigned long dhandle, int dx, int dy)
282 memset(&fblt, 0, sizeof(fblt));
284 fblt.dst_handle = dhandle;
288 fblt.src_handle = shandle;
293 fblt.height = height;
299 return ioctl(fd, GFX_FB_OSD_BITBLT, &fblt);
302 void SurfaceMVP::screenShot(char* fileName)
304 Log* logger = Log::getInstance();
306 FILE* outfile = fopen(fileName, "w");
309 logger->log("Surface", Log::ERR, "Can't open JPEG");
312 logger->log("Surface", Log::DEBUG, "File opened %u %u", surface.sfc.height, surface.sfc.width);
314 struct jpeg_compress_struct cinfo;
315 struct jpeg_error_mgr jerr;
316 cinfo.err = jpeg_std_error(&jerr);
317 jpeg_create_compress(&cinfo);
318 jpeg_stdio_dest(&cinfo, outfile);
319 cinfo.image_width = surface.sfc.width;
320 cinfo.image_height = surface.sfc.height;
321 cinfo.input_components = 3;
322 cinfo.in_color_space = JCS_RGB;
323 jpeg_set_defaults(&cinfo);
324 jpeg_start_compress(&cinfo, TRUE);
327 unsigned char row[surface.sfc.width * 3];
328 unsigned char* prow = (unsigned char*)&row;
329 unsigned char r, g, b;
331 while (cinfo.next_scanline < cinfo.image_height)
333 for(unsigned int i = 0; i < surface.sfc.width; i++)
335 readPixel(i, cinfo.next_scanline, &r, &g, &b);
337 row[(i * 3) + 1] = g;
338 row[(i * 3) + 2] = b;
340 jpeg_write_scanlines(&cinfo, (JSAMPLE **)&prow, 1);
343 jpeg_finish_compress(&cinfo);
344 jpeg_destroy_compress(&cinfo);
346 logger->log("Surface", Log::DEBUG, "Jpeg saved");
349 void SurfaceMVP::readPixel(int x, int y, unsigned char* r, unsigned char* g, unsigned char* b)
352 unsigned char a, Y, U, V;
353 unsigned int line, remainder;
355 if (((unsigned int)x >= surface.sfc.width) || ((unsigned int)y >= surface.sfc.height)) return;
357 remainder = (surface.sfc.width % 4);
359 line = surface.sfc.width;
361 line = surface.sfc.width + (4 - remainder);
363 offset = (y * line) + x;
365 Y = *(surface.base[0] + offset);
366 U = *(surface.base[1] + (offset & 0xfffffffe));
367 V = *(surface.base[1] + (offset & 0xfffffffe) + 1);
368 a = *(surface.base[2] + offset);
370 yuv2rgb(Y, U, V, r, g, b);
373 void SurfaceMVP::yuv2rgb(int y, int u, int v, unsigned char* pr, unsigned char* pg, unsigned char* pb)
375 // from http://www.fourcc.org/index.php?http%3A//www.fourcc.org/fccyvrgb.php
377 // unsigned int pixel32;
378 // unsigned char *pixel = (unsigned char *)&pixel32;
383 One formula I found: (not the right one)
385 R = 1.164(Y - 16) + 1.596(Cr - 128)
386 G = 1.164(Y - 16) - 0.813(Cr - 128) - 0.391(Cb - 128)
387 B = 1.164(Y - 16) + 2.018(Cb - 128)
390 r = (1.164 * (y - 16))
391 + (2.018 * (v - 128));
392 g = (1.164 * (y - 16))
393 - (0.813 * (u - 128))
394 - (0.391 * (v - 128));
395 b = (1.164 * (y - 16))
396 + (1.596 * (u - 128));
399 Another formula I found: (seems to work)
401 R = Y + 1.370705 (V-128)
402 G = Y - 0.698001 (V-128) - 0.337633 (U-128)
403 B = Y + 1.732446 (U-128)
406 r = (int)( y + (1.370705 * (v-128)) );
407 g = (int)( y - (0.698001 * (v-128)) - (0.337633 * (u-128)) );
408 b = (int)( y + (1.732446 * (u-128)) );
410 // Even with proper conversion, some values still need clipping.
411 if (r > 255) r = 255;
412 if (g > 255) g = 255;
413 if (b > 255) b = 255;
418 // Values only go from 0-220.. Why?
419 // pixel[0] = r * 220 / 256;
420 // pixel[1] = g * 220 / 256;
421 // pixel[2] = b * 220 / 256;
424 *pr = (unsigned char) (r * 220 / 256);
425 *pg = (unsigned char) (g * 220 / 256);
426 *pb = (unsigned char) (b * 220 / 256);
429 //printf("yuv2rgb(%i, %i, %i) -> %i, %i, %i (0x%x)\n",
431 pixel[0], pixel[1], pixel[2],