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"
27 SurfaceMVP::SurfaceMVP(int id)
30 fdOsd = Osd::getInstance()->getFD();
31 memset(&surface, 0, sizeof(osd_surface_t));
32 memset(&surface.sfc, 0, sizeof(stbgfx_sfc_t));
33 memset(&surface.map, 0, sizeof(stbgfx_map_t));
36 SurfaceMVP::~SurfaceMVP()
38 for (int i = 0; i < 3; i++)
40 if (surface.base[i]) munmap(surface.base[i], surface.map.map[i].size);
45 a = ioctl(fdOsd, GFX_FB_SFC_UNMAP, surface.sfc.handle);
46 if (a) Log::getInstance()->log("Surface", Log::ERR, "Surface unmap failed");
48 a = ioctl(fdOsd, GFX_FB_SFC_FREE, surface.sfc.handle);
49 if (a) Log::getInstance()->log("Surface", Log::ERR, "Surface destroy failed");
53 int SurfaceMVP::create(UINT width, UINT height)
56 int displayNumber = 0; // mvpmc iterates 0->15 till it gets one that works?
58 surface.sfc.width = width;
59 surface.sfc.height = height;
60 surface.sfc.flags = 0x3f1533;
62 surface.sfc.unknown = -1;
64 // r = ioctl(fdOsd, GFX_FB_SET_OSD, &displayNumber);
67 r = ioctl(fdOsd, GFX_FB_OSD_SURFACE, &displayNumber);
70 r = ioctl(fdOsd, GFX_FB_SFC_ALLOC, &surface.sfc);
73 surface.map.map[0].unknown = surface.sfc.handle;
74 r = ioctl(fdOsd, GFX_FB_MAP, &surface.map);
77 surface.base[0] = (unsigned char *)mmap(NULL, surface.map.map[0].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[0].addr);
78 if (surface.base[0] == MAP_FAILED) return 0;
80 surface.base[1] = (unsigned char *)mmap(NULL, surface.map.map[1].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[1].addr);
81 if (surface.base[1] == MAP_FAILED) return 0;
83 surface.base[2] = (unsigned char *)mmap(NULL, surface.map.map[2].size, PROT_READ|PROT_WRITE, MAP_SHARED, fdOsd, surface.map.map[2].addr);
84 if (surface.base[2] == MAP_FAILED) return 0;
86 // surface.display.num = displayNumber;
87 // r = ioctl(fdOsd, GFX_FB_MOVE_DISPLAY, &surface.display);
90 // r = ioctl(fdOsd, GFX_FB_SET_DISPLAY, &surface.display);
96 void SurfaceMVP::display()
98 unsigned long fb_descriptor[2];
100 fb_descriptor[0] = surface.sfc.handle;
101 fb_descriptor[1] = 1;
103 ioctl(fdOsd, GFX_FB_ATTACH, fb_descriptor);
106 unsigned long SurfaceMVP::getSurfaceHandle()
108 return surface.sfc.handle;
111 // ----------------------------------------------------------------------------
113 // Now for the drawing functions
116 * RGB to YUV conversion tables
118 int SurfaceMVP::conv_YB[256];
119 int SurfaceMVP::conv_YG[256];
120 int SurfaceMVP::conv_YR[256];
121 int SurfaceMVP::conv_UB[256];
122 int SurfaceMVP::conv_UG[256];
123 int SurfaceMVP::conv_UR[256];
124 int SurfaceMVP::conv_VB[256];
125 int SurfaceMVP::conv_VG[256];
126 int SurfaceMVP::conv_VR[256];
128 int SurfaceMVP::conv_BY[256];
129 int SurfaceMVP::conv_GY[256];
130 int SurfaceMVP::conv_RY[256];
131 int SurfaceMVP::conv_BU[256];
132 int SurfaceMVP::conv_GU[256];
133 int SurfaceMVP::conv_RU[256];
134 int SurfaceMVP::conv_BV[256];
135 int SurfaceMVP::conv_GV[256];
136 int SurfaceMVP::conv_RV[256];
139 * gfx_init() - initialize the RGB to YUV conversion tables
141 void SurfaceMVP::initConversionTables(void)
145 for (i=0; i<256; i++) {
146 conv_YB[i] = (int)(0.299 * (double)i);
149 for (i=0; i<256; i++) {
150 conv_YG[i] = (int)(0.587 * (double)i);
153 for (i=0; i<256; i++) {
154 conv_YR[i] = (int)(0.114 * (double)i);
158 for (i=0; i<256; i++) {
159 conv_UB[i] = (int)(0.5 * (double)i);
160 conv_BU[i] = (int)(1.732 * (i - 128));
162 for (i=0; i<256; i++) {
163 conv_UG[i] = (int)(-0.33126 * (double)i);
164 conv_GU[i] = (int)(-0.338 * (i - 128));
166 for (i=0; i<256; i++) {
167 conv_UR[i] = (int)(-0.16874 * (double)i);
171 for (i=0; i<256; i++) {
172 conv_VB[i] = (int)(-0.08131 * (double)i);
175 for (i=0; i<256; i++) {
176 conv_VG[i] = (int)(-0.41869 * (double)i);
177 conv_GV[i] = (int)(-0.698 * (i - 128));
179 for (i=0; i<256; i++) {
180 conv_VR[i] = (int)(0.5 * (double)i);
181 conv_RV[i] = (int)(1.370 * ((double)i - 128));
186 * rgb2yuv() - convert an RGB pixel to YUV
189 void SurfaceMVP::rgb2yuv(unsigned char r, unsigned char g, unsigned char b, unsigned char *y, unsigned char *u, unsigned char *v)
193 Y = conv_YB[b] + conv_YG[g] + conv_YR[r];
194 U = conv_UB[b] + conv_UG[g] + conv_UR[r] + 128;
195 V = conv_VB[b] + conv_VG[g] + conv_VR[r] + 128;
215 int SurfaceMVP::fillblt(int x, int y, int width, int height, unsigned int c)
219 fblt.handle = surface.sfc.handle;
223 fblt.height = height;
226 return ioctl(fdOsd, GFX_FB_OSD_FILLBLT, &fblt);
229 void SurfaceMVP::drawPixel(int x, int y, unsigned int c)
232 unsigned char r, g, b, a, Y, U, V;
233 unsigned int line, remainder;
235 if ((x >= (int)surface.sfc.width) || (y >= (int)surface.sfc.height))
238 c2rgba(c, &r, &g, &b, &a);
240 rgb2yuv(r, g, b, &Y, &U, &V);
242 remainder = (surface.sfc.width % 4);
244 line = surface.sfc.width;
246 line = surface.sfc.width + (4 - remainder);
248 offset = (y * line) + x;
250 *(surface.base[0] + offset) = Y;
251 *(surface.base[1] + (offset & 0xfffffffe)) = U;
252 *(surface.base[1] + (offset & 0xfffffffe) + 1) = V;
253 *(surface.base[2] + offset) = a;
257 void SurfaceMVP::drawHorzLine(int x1, int x2, int y, unsigned int c)
259 fillblt(x1, y, x2-x1, 1, c);
262 void SurfaceMVP::drawVertLine(int x, int y1, int y2, unsigned int c)
264 fillblt(x, y1, 1, y2-y1, c);
268 /* surface update to screen needs:
269 source x distance into this surface
270 source y distance into this surface
273 destination x on screen
274 destination y on screen
276 int SurfaceMVP::updateToScreen(int sx, int sy, int w, int h, int dx, int dy) // FIXME new, replace others with this FIXME
278 return blt(fdOsd, surface.sfc.handle, sx, sy, w, h, ((SurfaceMVP*)screen)->getSurfaceHandle(), dx, dy);
281 int SurfaceMVP::blt(int fd, unsigned long shandle, int sx, int sy, int width, int height, unsigned long dhandle, int dx, int dy)
284 memset(&fblt, 0, sizeof(fblt));
286 fblt.dst_handle = dhandle;
290 fblt.src_handle = shandle;
295 fblt.height = height;
301 return ioctl(fd, GFX_FB_OSD_BITBLT, &fblt);
304 void SurfaceMVP::screenShot(char* fileName)
306 Log* logger = Log::getInstance();
308 FILE* outfile = fopen(fileName, "w");
311 logger->log("Surface", Log::ERR, "Can't open JPEG");
314 logger->log("Surface", Log::DEBUG, "File opened %u %u", surface.sfc.height, surface.sfc.width);
316 struct jpeg_compress_struct cinfo;
317 struct jpeg_error_mgr jerr;
318 cinfo.err = jpeg_std_error(&jerr);
319 jpeg_create_compress(&cinfo);
320 jpeg_stdio_dest(&cinfo, outfile);
321 cinfo.image_width = surface.sfc.width;
322 cinfo.image_height = surface.sfc.height;
323 cinfo.input_components = 3;
324 cinfo.in_color_space = JCS_RGB;
325 jpeg_set_defaults(&cinfo);
326 jpeg_start_compress(&cinfo, TRUE);
329 unsigned char row[surface.sfc.width * 3];
330 unsigned char* prow = (unsigned char*)&row;
331 unsigned char r, g, b;
333 while (cinfo.next_scanline < cinfo.image_height)
335 for(unsigned int i = 0; i < surface.sfc.width; i++)
337 readPixel(i, cinfo.next_scanline, &r, &g, &b);
339 row[(i * 3) + 1] = g;
340 row[(i * 3) + 2] = b;
342 jpeg_write_scanlines(&cinfo, (JSAMPLE **)&prow, 1);
345 jpeg_finish_compress(&cinfo);
346 jpeg_destroy_compress(&cinfo);
348 logger->log("Surface", Log::DEBUG, "Jpeg saved");
351 void SurfaceMVP::readPixel(int x, int y, unsigned char* r, unsigned char* g, unsigned char* b)
354 unsigned char a, Y, U, V;
355 unsigned int line, remainder;
357 if (((unsigned int)x >= surface.sfc.width) || ((unsigned int)y >= surface.sfc.height)) return;
359 remainder = (surface.sfc.width % 4);
361 line = surface.sfc.width;
363 line = surface.sfc.width + (4 - remainder);
365 offset = (y * line) + x;
367 Y = *(surface.base[0] + offset);
368 U = *(surface.base[1] + (offset & 0xfffffffe));
369 V = *(surface.base[1] + (offset & 0xfffffffe) + 1);
370 a = *(surface.base[2] + offset);
372 yuv2rgb(Y, U, V, r, g, b);
375 void SurfaceMVP::yuv2rgb(int y, int u, int v, unsigned char* pr, unsigned char* pg, unsigned char* pb)
377 // from http://www.fourcc.org/index.php?http%3A//www.fourcc.org/fccyvrgb.php
379 // unsigned int pixel32;
380 // unsigned char *pixel = (unsigned char *)&pixel32;
385 One formula I found: (not the right one)
387 R = 1.164(Y - 16) + 1.596(Cr - 128)
388 G = 1.164(Y - 16) - 0.813(Cr - 128) - 0.391(Cb - 128)
389 B = 1.164(Y - 16) + 2.018(Cb - 128)
392 r = (1.164 * (y - 16))
393 + (2.018 * (v - 128));
394 g = (1.164 * (y - 16))
395 - (0.813 * (u - 128))
396 - (0.391 * (v - 128));
397 b = (1.164 * (y - 16))
398 + (1.596 * (u - 128));
401 Another formula I found: (seems to work)
403 R = Y + 1.370705 (V-128)
404 G = Y - 0.698001 (V-128) - 0.337633 (U-128)
405 B = Y + 1.732446 (U-128)
408 r = (int)( y + (1.370705 * (v-128)) );
409 g = (int)( y - (0.698001 * (v-128)) - (0.337633 * (u-128)) );
410 b = (int)( y + (1.732446 * (u-128)) );
412 // Even with proper conversion, some values still need clipping.
413 if (r > 255) r = 255;
414 if (g > 255) g = 255;
415 if (b > 255) b = 255;
420 // Values only go from 0-220.. Why?
421 // pixel[0] = r * 220 / 256;
422 // pixel[1] = g * 220 / 256;
423 // pixel[2] = b * 220 / 256;
426 *pr = (unsigned char) (r * 220 / 256);
427 *pg = (unsigned char) (g * 220 / 256);
428 *pb = (unsigned char) (b * 220 / 256);
431 //printf("yuv2rgb(%i, %i, %i) -> %i, %i, %i (0x%x)\n",
433 pixel[0], pixel[1], pixel[2],