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2 | #include "../config.h" |
2 | #include "../config.h" |
3 | #include "rxvt.h" |
3 | #include "rxvt.h" |
4 | |
4 | |
5 | #if HAVE_IMG |
5 | #if HAVE_IMG |
6 | |
6 | |
7 | #define float_to_component(d) ((d) * 65535.99) |
7 | #if 0 |
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8 | struct pict |
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9 | { |
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10 | Display *dpy; |
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11 | Picture pic; |
8 | |
12 | |
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13 | operator Picture () const |
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14 | { |
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15 | return pic; |
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16 | } |
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17 | |
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18 | pict () |
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19 | : pic (0) |
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20 | { |
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21 | } |
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22 | |
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23 | pict (rxvt_img *img, XRenderPictFormat *format = 0) |
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24 | : dpy (img->s->display->dpy) |
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25 | { |
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26 | XRenderPictureAttributes pa; |
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27 | pa.repeat = img->repeat; |
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28 | pic = XRenderCreatePicture (dpy, img->pm, format ? format : img->format, CPRepeat, &pa); |
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29 | } |
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30 | |
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31 | ~pict () |
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32 | { |
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33 | if (pic) |
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34 | XRenderFreePicture (dpy, pic); |
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35 | } |
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36 | }; |
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37 | #endif |
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38 | |
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39 | static XRenderPictFormat * |
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40 | find_alpha_format_for (Display *dpy, XRenderPictFormat *format) |
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41 | { |
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42 | if (format->direct.alphaMask) |
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43 | return format; // already has alpha |
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44 | |
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45 | // try to find a suitable alpha format, one bit alpha is enough for our purposes |
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46 | if (format->type == PictTypeDirect) |
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47 | for (int n = 0; XRenderPictFormat *f = XRenderFindFormat (dpy, 0, 0, n); ++n) |
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48 | if (f->direct.alphaMask |
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49 | && f->type == PictTypeDirect |
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50 | && ecb_popcount32 (f->direct.redMask ) >= ecb_popcount32 (format->direct.redMask ) |
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51 | && ecb_popcount32 (f->direct.greenMask) >= ecb_popcount32 (format->direct.greenMask) |
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52 | && ecb_popcount32 (f->direct.blueMask ) >= ecb_popcount32 (format->direct.blueMask )) |
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53 | return f; |
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54 | |
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55 | // should be a very good fallback |
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56 | return XRenderFindStandardFormat (dpy, PictStandardARGB32); |
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57 | } |
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58 | |
9 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height) |
59 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat) |
10 | : s(screen), w(width), h(height), format(format), shared(false) |
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11 | { |
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12 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
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13 | } |
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14 | |
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15 | rxvt_img::rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int width, int height, Pixmap pixmap) |
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16 | : s(screen), pm(pixmap), w(width), h(height), format(format), shared(false) |
60 | : s(screen), x(x), y(y), w(width), h(height), format(format), repeat(repeat), |
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61 | pm(0), ref(0) |
17 | { |
62 | { |
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63 | } |
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64 | |
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65 | rxvt_img::rxvt_img (const rxvt_img &img) |
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66 | : s(img.s), x(img.x), y(img.y), w(img.w), h(img.h), format(img.format), repeat(img.repeat), pm(img.pm), ref(img.ref) |
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67 | { |
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68 | ++ref->cnt; |
18 | } |
69 | } |
19 | |
70 | |
20 | rxvt_img * |
71 | rxvt_img * |
21 | rxvt_img::new_from_root (rxvt_screen *s) |
72 | rxvt_img::new_from_root (rxvt_screen *s) |
22 | { |
73 | { |
… | |
… | |
37 | return 0; |
88 | return 0; |
38 | |
89 | |
39 | rxvt_img *img = new rxvt_img ( |
90 | rxvt_img *img = new rxvt_img ( |
40 | s, |
91 | s, |
41 | XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
92 | XRenderFindVisualFormat (dpy, DefaultVisual (dpy, s->display->screen)), |
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93 | 0, |
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94 | 0, |
42 | root_pm_w, |
95 | root_pm_w, |
43 | root_pm_h, |
96 | root_pm_h |
44 | root_pixmap |
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45 | ); |
97 | ); |
46 | |
98 | |
47 | img->shared = true; |
99 | img->pm = root_pixmap; |
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100 | img->ref = new pixref (root_pm_w, root_pm_h); |
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101 | img->ref->ours = false; |
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102 | |
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103 | return img; |
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104 | } |
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105 | |
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106 | # if HAVE_PIXBUF |
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107 | |
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108 | rxvt_img * |
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109 | rxvt_img::new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb) |
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110 | { |
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111 | Display *dpy = s->display->dpy; |
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112 | |
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113 | int width = gdk_pixbuf_get_width (pb); |
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114 | int height = gdk_pixbuf_get_height (pb); |
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115 | |
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116 | if (width > 32767 || height > 32767) // well, we *could* upload in chunks |
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117 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big (maximum size 32768x32768).\n"); |
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118 | |
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119 | // since we require rgb24/argb32 formats from xrender we assume |
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120 | // that both 24 and 32 bpp MUST be supported by any screen that supports xrender |
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121 | |
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122 | int byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
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123 | |
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124 | XImage xi; |
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125 | |
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126 | xi.width = width; |
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127 | xi.height = height; |
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128 | xi.xoffset = 0; |
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129 | xi.format = ZPixmap; |
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130 | xi.byte_order = ImageByteOrder (dpy); |
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131 | xi.bitmap_unit = 0; //XY only, unused |
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132 | xi.bitmap_bit_order = 0; //XY only, unused |
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133 | xi.bitmap_pad = BitmapPad (dpy); |
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134 | xi.depth = 32; |
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135 | xi.bytes_per_line = 0; |
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136 | xi.bits_per_pixel = 32; //Z only |
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137 | xi.red_mask = 0x00000000; //Z only, unused |
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138 | xi.green_mask = 0x00000000; //Z only, unused |
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139 | xi.blue_mask = 0x00000000; //Z only, unused |
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140 | xi.obdata = 0; // probably unused |
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141 | |
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142 | bool byte_order_mismatch = byte_order != xi.byte_order; |
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143 | |
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144 | if (!XInitImage (&xi)) |
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145 | rxvt_fatal ("unable to initialise ximage, please report.\n"); |
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146 | |
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147 | if (height > INT_MAX / xi.bytes_per_line) |
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148 | rxvt_fatal ("rxvt_img::new_from_pixbuf: image too big for Xlib.\n"); |
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149 | |
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150 | xi.data = (char *)rxvt_malloc (height * xi.bytes_per_line); |
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151 | |
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152 | int rowstride = gdk_pixbuf_get_rowstride (pb); |
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153 | bool pb_has_alpha = gdk_pixbuf_get_has_alpha (pb); |
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154 | unsigned char *row = gdk_pixbuf_get_pixels (pb); |
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155 | |
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156 | char *line = xi.data; |
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157 | |
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158 | for (int y = 0; y < height; y++) |
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159 | { |
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160 | unsigned char *src = row; |
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161 | uint32_t *dst = (uint32_t *)line; |
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162 | |
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163 | if (!pb_has_alpha) |
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164 | for (int x = 0; x < width; x++) |
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165 | { |
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166 | uint8_t r = *src++; |
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167 | uint8_t g = *src++; |
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168 | uint8_t b = *src++; |
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169 | |
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170 | uint32_t v = (255 << 24) | (r << 16) | (g << 8) | b; |
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171 | |
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172 | if (ecb_big_endian () ? !byte_order_mismatch : byte_order_mismatch) |
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173 | v = ecb_bswap32 (v); |
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174 | |
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175 | *dst++ = v; |
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176 | } |
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177 | else |
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178 | for (int x = 0; x < width; x++) |
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179 | { |
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180 | uint32_t v = *(uint32_t *)src; src += 4; |
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181 | |
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182 | if (ecb_big_endian ()) |
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183 | v = ecb_bswap32 (v); |
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184 | |
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185 | v = ecb_rotl32 (v, 8); // abgr to bgra |
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186 | |
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187 | if (!byte_order_mismatch) |
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188 | v = ecb_bswap32 (v); |
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189 | |
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190 | *dst++ = v; |
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191 | } |
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192 | |
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193 | row += rowstride; |
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194 | line += xi.bytes_per_line; |
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195 | } |
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196 | |
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197 | rxvt_img *img = new rxvt_img (s, XRenderFindStandardFormat (dpy, PictStandardARGB32), 0, 0, width, height); |
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198 | img->alloc (); |
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199 | |
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200 | GC gc = XCreateGC (dpy, img->pm, 0, 0); |
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201 | XPutImage (dpy, img->pm, gc, &xi, 0, 0, 0, 0, width, height); |
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202 | XFreeGC (dpy, gc); |
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203 | |
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204 | free (xi.data); |
48 | |
205 | |
49 | return img; |
206 | return img; |
50 | } |
207 | } |
51 | |
208 | |
52 | rxvt_img * |
209 | rxvt_img * |
… | |
… | |
56 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
213 | GdkPixbuf *pb = gdk_pixbuf_new_from_file (filename, &err); |
57 | |
214 | |
58 | if (!pb) |
215 | if (!pb) |
59 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
216 | rxvt_fatal ("rxvt_img::new_from_file: %s\n", err->message); |
60 | |
217 | |
61 | rxvt_img *img = new rxvt_img ( |
218 | rxvt_img *img = new_from_pixbuf (s, pb); |
62 | s, |
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63 | XRenderFindStandardFormat (s->display->dpy, gdk_pixbuf_get_has_alpha (pb) ? PictStandardARGB32 : PictStandardRGB24), |
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64 | gdk_pixbuf_get_width (pb), |
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65 | gdk_pixbuf_get_height (pb) |
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66 | ); |
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67 | |
219 | |
68 | img->render_pixbuf (pb, 0, 0, img->w, img->h, 0, 0); |
220 | g_object_unref (pb); |
69 | |
221 | |
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222 | return img; |
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223 | } |
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224 | |
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225 | # endif |
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226 | |
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227 | void |
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228 | rxvt_img::destroy () |
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229 | { |
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230 | if (--ref->cnt) |
70 | return img; |
231 | return; |
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232 | |
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233 | if (pm && ref->ours) |
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234 | XFreePixmap (s->display->dpy, pm); |
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235 | |
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236 | delete ref; |
71 | } |
237 | } |
72 | |
238 | |
73 | rxvt_img::~rxvt_img () |
239 | rxvt_img::~rxvt_img () |
74 | { |
240 | { |
75 | if (!shared) |
241 | destroy (); |
76 | XFreePixmap (s->display->dpy, pm); |
242 | } |
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243 | |
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244 | void |
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245 | rxvt_img::alloc () |
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246 | { |
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247 | pm = XCreatePixmap (s->display->dpy, s->display->root, w, h, format->depth); |
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248 | ref = new pixref (w, h); |
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249 | } |
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250 | |
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251 | Picture |
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252 | rxvt_img::picture () |
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253 | { |
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254 | Display *dpy = s->display->dpy; |
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255 | |
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256 | XRenderPictureAttributes pa; |
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257 | pa.repeat = repeat; |
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258 | Picture pic = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
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259 | |
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260 | return pic; |
77 | } |
261 | } |
78 | |
262 | |
79 | void |
263 | void |
80 | rxvt_img::unshare () |
264 | rxvt_img::unshare () |
81 | { |
265 | { |
82 | if (!shared) |
266 | if (ref->cnt == 1 && ref->ours) |
83 | return; |
267 | return; |
84 | |
268 | |
85 | rxvt_img *img = clone (); |
269 | Pixmap pm2 = XCreatePixmap (s->display->dpy, s->display->root, ref->w, ref->h, format->depth); |
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270 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
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271 | XCopyArea (s->display->dpy, pm, pm2, gc, 0, 0, ref->w, ref->h, 0, 0); |
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272 | XFreeGC (s->display->dpy, gc); |
86 | |
273 | |
87 | ::swap (pm , img->pm); |
274 | destroy (); |
88 | ::swap (shared, img->shared); |
275 | |
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276 | pm = pm2; |
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277 | ref = new pixref (ref->w, ref->h); |
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278 | } |
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279 | |
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280 | void |
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281 | rxvt_img::fill (const rgba &c) |
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282 | { |
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283 | XRenderColor rc = { c.r, c.g, c.b, c.a }; |
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284 | |
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285 | Display *dpy = s->display->dpy; |
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286 | Picture src = picture (); |
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287 | XRenderFillRectangle (dpy, PictOpSrc, src, &rc, 0, 0, w, h); |
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288 | XRenderFreePicture (dpy, src); |
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289 | } |
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290 | |
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291 | void |
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292 | rxvt_img::add_alpha () |
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293 | { |
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294 | if (format->direct.alphaMask) |
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295 | return; |
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296 | |
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297 | Display *dpy = s->display->dpy; |
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298 | |
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299 | rxvt_img *img = new rxvt_img (s, find_alpha_format_for (dpy, format), x, y, w, h, repeat); |
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300 | img->alloc (); |
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301 | |
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302 | Picture src = picture (); |
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303 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
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304 | |
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305 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
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306 | |
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307 | XRenderFreePicture (dpy, src); |
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308 | XRenderFreePicture (dpy, dst); |
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309 | |
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310 | ::swap (img->ref, ref); |
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311 | ::swap (img->pm , pm ); |
89 | |
312 | |
90 | delete img; |
313 | delete img; |
91 | } |
314 | } |
92 | |
315 | |
93 | void |
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94 | rxvt_img::fill (const rxvt_color &c) |
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95 | { |
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96 | XGCValues gcv; |
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97 | gcv.foreground = c; |
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98 | GC gc = XCreateGC (s->display->dpy, pm, GCForeground, &gcv); |
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99 | XFillRectangle (s->display->dpy, pm, gc, 0, 0, w, h); |
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100 | XFreeGC (s->display->dpy, gc); |
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101 | } |
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102 | |
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103 | static void |
316 | static void |
104 | get_gaussian_kernel (int radius, int width, double *kernel, XFixed *params) |
317 | get_gaussian_kernel (int radius, int width, rxvt_img::nv *kernel, XFixed *params) |
105 | { |
318 | { |
106 | double sigma = radius / 2.0; |
319 | rxvt_img::nv sigma = radius / 2.0; |
107 | double scale = sqrt (2.0 * M_PI) * sigma; |
320 | rxvt_img::nv scale = sqrt (2.0 * M_PI) * sigma; |
108 | double sum = 0.0; |
321 | rxvt_img::nv sum = 0.0; |
109 | |
322 | |
110 | for (int i = 0; i < width; i++) |
323 | for (int i = 0; i < width; i++) |
111 | { |
324 | { |
112 | double x = i - width / 2; |
325 | rxvt_img::nv x = i - width / 2; |
113 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
326 | kernel[i] = exp (-(x * x) / (2.0 * sigma * sigma)) / scale; |
114 | sum += kernel[i]; |
327 | sum += kernel[i]; |
115 | } |
328 | } |
116 | |
329 | |
117 | params[0] = XDoubleToFixed (width); |
330 | params[0] = XDoubleToFixed (width); |
… | |
… | |
127 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
340 | if (!(s->display->flags & DISPLAY_HAS_RENDER_CONV)) |
128 | return clone (); |
341 | return clone (); |
129 | |
342 | |
130 | Display *dpy = s->display->dpy; |
343 | Display *dpy = s->display->dpy; |
131 | int size = max (rh, rv) * 2 + 1; |
344 | int size = max (rh, rv) * 2 + 1; |
132 | double *kernel = (double *)malloc (size * sizeof (double)); |
345 | nv *kernel = (nv *)malloc (size * sizeof (nv)); |
133 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
346 | XFixed *params = (XFixed *)malloc ((size + 2) * sizeof (XFixed)); |
134 | rxvt_img *img = new rxvt_img (s, format, w, h); |
347 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
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348 | img->alloc (); |
135 | |
349 | |
136 | XRenderPictureAttributes pa; |
350 | XRenderPictureAttributes pa; |
137 | |
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138 | pa.repeat = RepeatPad; |
351 | pa.repeat = RepeatPad; |
139 | Picture src = XRenderCreatePicture (dpy, pm , format, CPRepeat, &pa); |
352 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
140 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, CPRepeat, &pa); |
353 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
141 | |
354 | |
142 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
355 | Pixmap tmp_pm = XCreatePixmap (dpy, pm, w, h, format->depth); |
143 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
356 | Picture tmp = XRenderCreatePicture (dpy, tmp_pm , format, CPRepeat, &pa); |
144 | XFreePixmap (dpy, tmp_pm); |
357 | XFreePixmap (dpy, tmp_pm); |
145 | |
358 | |
… | |
… | |
161 | |
374 | |
162 | size = rv * 2 + 1; |
375 | size = rv * 2 + 1; |
163 | get_gaussian_kernel (rv, size, kernel, params); |
376 | get_gaussian_kernel (rv, size, kernel, params); |
164 | ::swap (params[0], params[1]); |
377 | ::swap (params[0], params[1]); |
165 | |
378 | |
166 | XRenderSetPictureFilter (dpy, src, FilterConvolution, params, size+2); |
379 | XRenderSetPictureFilter (dpy, tmp, FilterConvolution, params, size+2); |
167 | XRenderComposite (dpy, |
380 | XRenderComposite (dpy, |
168 | PictOpSrc, |
381 | PictOpSrc, |
169 | tmp, |
382 | tmp, |
170 | None, |
383 | None, |
171 | dst, |
384 | dst, |
… | |
… | |
175 | w, h); |
388 | w, h); |
176 | } |
389 | } |
177 | |
390 | |
178 | free (kernel); |
391 | free (kernel); |
179 | free (params); |
392 | free (params); |
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393 | |
180 | XRenderFreePicture (dpy, src); |
394 | XRenderFreePicture (dpy, src); |
181 | XRenderFreePicture (dpy, dst); |
395 | XRenderFreePicture (dpy, dst); |
182 | XRenderFreePicture (dpy, tmp); |
396 | XRenderFreePicture (dpy, tmp); |
183 | |
397 | |
184 | return img; |
398 | return img; |
185 | } |
399 | } |
186 | |
400 | |
187 | static Picture |
401 | static Picture |
188 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb) |
402 | create_xrender_mask (Display *dpy, Drawable drawable, Bool argb, Bool component_alpha) |
189 | { |
403 | { |
190 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
404 | Pixmap pixmap = XCreatePixmap (dpy, drawable, 1, 1, argb ? 32 : 8); |
191 | |
405 | |
192 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
406 | XRenderPictFormat *format = XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8); |
193 | XRenderPictureAttributes pa; |
407 | XRenderPictureAttributes pa; |
194 | pa.repeat = True; |
408 | pa.repeat = RepeatNormal; |
|
|
409 | pa.component_alpha = component_alpha; |
195 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat, &pa); |
410 | Picture mask = XRenderCreatePicture (dpy, pixmap, format, CPRepeat | CPComponentAlpha, &pa); |
196 | |
411 | |
197 | XFreePixmap (dpy, pixmap); |
412 | XFreePixmap (dpy, pixmap); |
198 | |
413 | |
199 | return mask; |
414 | return mask; |
200 | } |
415 | } |
201 | |
416 | |
|
|
417 | static void |
|
|
418 | extract (int32_t cl0, int32_t cl1, int32_t &c, unsigned short &xc) |
|
|
419 | { |
|
|
420 | int32_t x = clamp (c, cl0, cl1); |
|
|
421 | c -= x; |
|
|
422 | xc = x; |
|
|
423 | } |
|
|
424 | |
|
|
425 | static bool |
|
|
426 | extract (int32_t cl0, int32_t cl1, int32_t &r, int32_t &g, int32_t &b, int32_t &a, unsigned short &xr, unsigned short &xg, unsigned short &xb, unsigned short &xa) |
|
|
427 | { |
|
|
428 | extract (cl0, cl1, r, xr); |
|
|
429 | extract (cl0, cl1, g, xg); |
|
|
430 | extract (cl0, cl1, b, xb); |
|
|
431 | extract (cl0, cl1, a, xa); |
|
|
432 | |
|
|
433 | return xr | xg | xb | xa; |
|
|
434 | } |
|
|
435 | |
202 | void |
436 | void |
203 | rxvt_img::brightness (double r, double g, double b, double a) |
437 | rxvt_img::brightness (int32_t r, int32_t g, int32_t b, int32_t a) |
204 | { |
438 | { |
|
|
439 | unshare (); |
|
|
440 | |
205 | Display *dpy = s->display->dpy; |
441 | Display *dpy = s->display->dpy; |
206 | Picture src = create_xrender_mask (dpy, pm, True); |
|
|
207 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
442 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
208 | |
443 | |
|
|
444 | // loop should not be needed for brightness, as only -1..1 makes sense |
|
|
445 | //while (r | g | b | a) |
|
|
446 | { |
|
|
447 | unsigned short xr, xg, xb, xa; |
209 | XRenderColor mask_c; |
448 | XRenderColor mask_c; |
210 | mask_c.red = float_to_component (r); |
449 | |
211 | mask_c.green = float_to_component (g); |
450 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
212 | mask_c.blue = float_to_component (b); |
|
|
213 | mask_c.alpha = float_to_component (a); |
|
|
214 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
451 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
215 | |
452 | |
216 | XRenderComposite (dpy, PictOpAdd, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
453 | if (extract (-65535, 0, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
|
|
454 | { |
|
|
455 | XRenderColor mask_w = { 65535, 65535, 65535, 65535 }; |
|
|
456 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
457 | mask_c.red = -mask_c.red; //TODO: verify that doing clamp, assign, and negation does the right thing |
|
|
458 | mask_c.green = -mask_c.green; |
|
|
459 | mask_c.blue = -mask_c.blue; |
|
|
460 | mask_c.alpha = -mask_c.alpha; |
|
|
461 | XRenderFillRectangle (dpy, PictOpAdd, dst, &mask_c, 0, 0, w, h); |
|
|
462 | XRenderFillRectangle (dpy, PictOpDifference, dst, &mask_w, 0, 0, w, h); |
|
|
463 | } |
|
|
464 | } |
|
|
465 | |
|
|
466 | XRenderFreePicture (dpy, dst); |
217 | } |
467 | } |
218 | |
468 | |
219 | void |
469 | void |
220 | rxvt_img::contrast (double r, double g, double b, double a) |
470 | rxvt_img::contrast (int32_t r, int32_t g, int32_t b, int32_t a) |
221 | { |
471 | { |
222 | if (!(s->display->flags & DISPLAY_HAS_RENDER_MUL)) |
472 | if (r < 0 || g < 0 || b < 0 || a < 0) |
223 | return; |
473 | rxvt_fatal ("rxvt_img::contrast does not support negative values.\n"); |
224 | |
474 | |
|
|
475 | rxvt_img *img = new rxvt_img (s, format, x, y, w, h, repeat); |
|
|
476 | img->alloc (); |
|
|
477 | img->fill (rgba (0, 0, 0, 0)); |
|
|
478 | |
|
|
479 | // premultiply (yeah, these are not exact, sue me or fix it) |
|
|
480 | r = (r * (a >> 8)) >> 8; |
|
|
481 | g = (g * (a >> 8)) >> 8; |
|
|
482 | b = (b * (a >> 8)) >> 8; |
|
|
483 | |
225 | Display *dpy = s->display->dpy; |
484 | Display *dpy = s->display->dpy; |
226 | Picture src = create_xrender_mask (dpy, pm, True); |
485 | |
|
|
486 | Picture src = picture (); |
227 | Picture dst = XRenderCreatePicture (dpy, pm, format, 0, 0); |
487 | Picture dst = XRenderCreatePicture (dpy, img->pm, format, 0, 0); |
|
|
488 | Picture mul = create_xrender_mask (dpy, pm, True, True); |
228 | |
489 | |
|
|
490 | //TODO: this operator does not yet implement some useful contrast |
|
|
491 | while (r | g | b | a) |
|
|
492 | { |
|
|
493 | unsigned short xr, xg, xb, xa; |
229 | XRenderColor mask_c; |
494 | XRenderColor mask_c; |
230 | mask_c.red = float_to_component (r); |
|
|
231 | mask_c.green = float_to_component (g); |
|
|
232 | mask_c.blue = float_to_component (b); |
|
|
233 | mask_c.alpha = float_to_component (a); |
|
|
234 | XRenderFillRectangle (dpy, PictOpSrc, src, &mask_c, 0, 0, 1, 1); |
|
|
235 | |
495 | |
236 | XRenderComposite (dpy, PictOpMultiply, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
496 | if (extract (0, 65535, r, g, b, a, mask_c.red, mask_c.green, mask_c.blue, mask_c.alpha)) |
237 | } |
|
|
238 | |
|
|
239 | bool |
|
|
240 | rxvt_img::render_pixbuf (GdkPixbuf *pixbuf, int src_x, int src_y, int width, int height, int dst_x, int dst_y) |
|
|
241 | { |
|
|
242 | Display *dpy = s->display->dpy; |
|
|
243 | |
|
|
244 | if (s->visual->c_class != TrueColor) |
|
|
245 | return false; |
|
|
246 | |
|
|
247 | uint32_t red_mask, green_mask, blue_mask, alpha_mask; |
|
|
248 | |
|
|
249 | red_mask = (uint32_t)format->direct.redMask << format->direct.red; |
|
|
250 | green_mask = (uint32_t)format->direct.greenMask << format->direct.green; |
|
|
251 | blue_mask = (uint32_t)format->direct.blueMask << format->direct.blue; |
|
|
252 | alpha_mask = (uint32_t)format->direct.alphaMask << format->direct.alpha; |
|
|
253 | |
|
|
254 | int width_r = ecb_popcount32 (red_mask); |
|
|
255 | int width_g = ecb_popcount32 (green_mask); |
|
|
256 | int width_b = ecb_popcount32 (blue_mask); |
|
|
257 | int width_a = ecb_popcount32 (alpha_mask); |
|
|
258 | |
|
|
259 | if (width_r > 8 || width_g > 8 || width_b > 8 || width_a > 8) |
|
|
260 | return false; |
|
|
261 | |
|
|
262 | int sh_r = ecb_ctz32 (red_mask); |
|
|
263 | int sh_g = ecb_ctz32 (green_mask); |
|
|
264 | int sh_b = ecb_ctz32 (blue_mask); |
|
|
265 | int sh_a = ecb_ctz32 (alpha_mask); |
|
|
266 | |
|
|
267 | if (width > 32767 || height > 32767) |
|
|
268 | return false; |
|
|
269 | |
|
|
270 | XImage *ximage = XCreateImage (dpy, s->visual, format->depth, ZPixmap, 0, 0, |
|
|
271 | width, height, 32, 0); |
|
|
272 | if (!ximage) |
|
|
273 | return false; |
|
|
274 | |
|
|
275 | if (height > INT_MAX / ximage->bytes_per_line |
|
|
276 | || !(ximage->data = (char *)malloc (height * ximage->bytes_per_line))) |
|
|
277 | { |
|
|
278 | XDestroyImage (ximage); |
|
|
279 | return false; |
|
|
280 | } |
|
|
281 | |
|
|
282 | GC gc = XCreateGC (dpy, pm, 0, 0); |
|
|
283 | |
|
|
284 | ximage->byte_order = ecb_big_endian () ? MSBFirst : LSBFirst; |
|
|
285 | |
|
|
286 | int rowstride = gdk_pixbuf_get_rowstride (pixbuf); |
|
|
287 | int channels = gdk_pixbuf_get_n_channels (pixbuf); |
|
|
288 | unsigned char *row = gdk_pixbuf_get_pixels (pixbuf) + src_y * rowstride + src_x * channels; |
|
|
289 | char *line = ximage->data; |
|
|
290 | |
|
|
291 | rgba c (0, 0, 0); |
|
|
292 | |
|
|
293 | if (channels == 4 && alpha_mask == 0) |
|
|
294 | { |
|
|
295 | //pix_colors[Color_bg].get (c); |
|
|
296 | //TODO |
|
|
297 | c.r = 0xffff; c.g = 0xc0c0; c.b = 0xcbcb;//D |
|
|
298 | c.r >>= 8; |
|
|
299 | c.g >>= 8; |
|
|
300 | c.b >>= 8; |
|
|
301 | } |
|
|
302 | |
|
|
303 | for (int y = 0; y < height; y++) |
|
|
304 | { |
|
|
305 | for (int x = 0; x < width; x++) |
|
|
306 | { |
497 | { |
307 | unsigned char *pixel = row + x * channels; |
498 | XRenderFillRectangle (dpy, PictOpSrc, mul, &mask_c, 0, 0, 1, 1); |
308 | uint32_t value; |
499 | XRenderComposite (dpy, PictOpAdd, src, mul, dst, 0, 0, 0, 0, 0, 0, w, h); |
309 | unsigned char r, g, b, a; |
|
|
310 | |
|
|
311 | if (channels == 4) |
|
|
312 | { |
|
|
313 | a = pixel[3]; |
|
|
314 | r = (pixel[0] * a + c.r * (0xff - a)) / 0xff; |
|
|
315 | g = (pixel[1] * a + c.g * (0xff - a)) / 0xff; |
|
|
316 | b = (pixel[2] * a + c.b * (0xff - a)) / 0xff; |
|
|
317 | } |
|
|
318 | else |
|
|
319 | { |
|
|
320 | a = 0xff; |
|
|
321 | r = pixel[0]; |
|
|
322 | g = pixel[1]; |
|
|
323 | b = pixel[2]; |
|
|
324 | } |
|
|
325 | |
|
|
326 | value = ((r >> (8 - width_r)) << sh_r) |
|
|
327 | | ((g >> (8 - width_g)) << sh_g) |
|
|
328 | | ((b >> (8 - width_b)) << sh_b) |
|
|
329 | | ((a >> (8 - width_a)) << sh_a); |
|
|
330 | |
|
|
331 | if (ximage->bits_per_pixel == 32) |
|
|
332 | ((uint32_t *)line)[x] = value; |
|
|
333 | else |
|
|
334 | XPutPixel (ximage, x, y, value); |
|
|
335 | } |
500 | } |
|
|
501 | } |
336 | |
502 | |
337 | row += rowstride; |
503 | XRenderFreePicture (dpy, mul); |
338 | line += ximage->bytes_per_line; |
504 | XRenderFreePicture (dpy, dst); |
|
|
505 | XRenderFreePicture (dpy, src); |
|
|
506 | |
|
|
507 | ::swap (img->ref, ref); |
|
|
508 | ::swap (img->pm , pm ); |
|
|
509 | |
|
|
510 | delete img; |
|
|
511 | } |
|
|
512 | |
|
|
513 | void |
|
|
514 | rxvt_img::draw (rxvt_img *img, int op, nv mask) |
|
|
515 | { |
|
|
516 | unshare (); |
|
|
517 | |
|
|
518 | Display *dpy = s->display->dpy; |
|
|
519 | Picture src = img->picture (); |
|
|
520 | Picture dst = picture (); |
|
|
521 | Picture mask_p = 0; |
|
|
522 | |
|
|
523 | if (mask != 1.) |
339 | } |
524 | { |
|
|
525 | mask_p = create_xrender_mask (dpy, img->pm, False, False); |
|
|
526 | XRenderColor mask_c = { 0, 0, 0, float_to_component (mask) }; |
|
|
527 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
528 | } |
340 | |
529 | |
341 | XPutImage (dpy, pm, gc, ximage, 0, 0, dst_x, dst_y, width, height); |
530 | XRenderComposite (dpy, op, src, mask_p, dst, x - img->x, y - img->y, 0, 0, 0, 0, w, h); |
342 | XDestroyImage (ximage); |
|
|
343 | XFreeGC (dpy, gc); |
|
|
344 | |
|
|
345 | return true; |
|
|
346 | } |
|
|
347 | |
|
|
348 | rxvt_img * |
|
|
349 | rxvt_img::clone () |
|
|
350 | { |
|
|
351 | rxvt_img *img = new rxvt_img (s, format, w, h); |
|
|
352 | |
|
|
353 | GC gc = XCreateGC (s->display->dpy, pm, 0, 0); |
|
|
354 | XCopyArea (s->display->dpy, pm, img->pm, gc, 0, 0, w, h, 0, 0); |
|
|
355 | XFreeGC (s->display->dpy, gc); |
|
|
356 | |
|
|
357 | return img; |
|
|
358 | } |
|
|
359 | |
|
|
360 | rxvt_img * |
|
|
361 | rxvt_img::sub_rect (int x, int y, int width, int height, int repeat) |
|
|
362 | { |
|
|
363 | rxvt_img *img = new rxvt_img (s, format, width, height); |
|
|
364 | |
|
|
365 | Display *dpy = s->display->dpy; |
|
|
366 | XRenderPictureAttributes pa; |
|
|
367 | pa.repeat = repeat; |
|
|
368 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
|
|
369 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
370 | |
|
|
371 | XRenderComposite (dpy, PictOpSrc, src, None, dst, x, y, 0, 0, 0, 0, width, height); |
|
|
372 | |
531 | |
373 | XRenderFreePicture (dpy, src); |
532 | XRenderFreePicture (dpy, src); |
374 | XRenderFreePicture (dpy, dst); |
533 | XRenderFreePicture (dpy, dst); |
375 | |
534 | |
376 | return img; |
535 | if (mask_p) |
|
|
536 | XRenderFreePicture (dpy, mask_p); |
377 | } |
537 | } |
378 | |
538 | |
379 | rxvt_img * |
539 | rxvt_img * |
380 | rxvt_img::transform (int new_width, int new_height, double matrix[9], int repeat) |
540 | rxvt_img::clone () |
381 | { |
541 | { |
382 | rxvt_img *img = new rxvt_img (s, format, new_width, new_height); |
542 | return new rxvt_img (*this); |
|
|
543 | } |
383 | |
544 | |
|
|
545 | rxvt_img * |
|
|
546 | rxvt_img::reify () |
|
|
547 | { |
|
|
548 | if (x == 0 && y == 0 && w == ref->w && h == ref->h) |
|
|
549 | return clone (); |
|
|
550 | |
384 | Display *dpy = s->display->dpy; |
551 | Display *dpy = s->display->dpy; |
385 | XRenderPictureAttributes pa; |
552 | |
386 | pa.repeat = repeat; |
553 | // add an alpha channel if... |
387 | Picture src = XRenderCreatePicture (dpy, pm, format, CPRepeat, &pa); |
554 | bool alpha = !format->direct.alphaMask // pixmap has none yet |
|
|
555 | && (x || y) // we need one because of non-zero offset |
|
|
556 | && repeat == RepeatNone; // and we have no good pixels to fill with |
|
|
557 | |
|
|
558 | rxvt_img *img = new rxvt_img (s, alpha ? find_alpha_format_for (dpy, format) : format, 0, 0, w, h, repeat); |
|
|
559 | img->alloc (); |
|
|
560 | |
|
|
561 | Picture src = picture (); |
388 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
562 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
|
|
563 | |
|
|
564 | if (alpha) |
|
|
565 | { |
|
|
566 | XRenderColor rc = { 0, 0, 0, 0 }; |
|
|
567 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h);//TODO: split into four fillrectangles |
|
|
568 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, x, y, ref->w, ref->h); |
|
|
569 | } |
|
|
570 | else |
|
|
571 | XRenderComposite (dpy, PictOpSrc, src, None, dst, -x, -y, 0, 0, 0, 0, w, h); |
389 | |
572 | |
390 | XTransform xfrm; |
573 | XRenderFreePicture (dpy, src); |
|
|
574 | XRenderFreePicture (dpy, dst); |
391 | |
575 | |
|
|
576 | return img; |
|
|
577 | } |
|
|
578 | |
|
|
579 | rxvt_img * |
|
|
580 | rxvt_img::sub_rect (int x, int y, int width, int height) |
|
|
581 | { |
|
|
582 | rxvt_img *img = clone (); |
|
|
583 | |
|
|
584 | img->x -= x; |
|
|
585 | img->y -= y; |
|
|
586 | |
|
|
587 | if (w != width || h != height) |
|
|
588 | { |
|
|
589 | img->w = width; |
|
|
590 | img->h = height; |
|
|
591 | |
|
|
592 | rxvt_img *img2 = img->reify (); |
|
|
593 | delete img; |
|
|
594 | img = img2; |
|
|
595 | } |
|
|
596 | |
|
|
597 | return img; |
|
|
598 | } |
|
|
599 | |
|
|
600 | typedef rxvt_img::nv matrix[3][3]; |
|
|
601 | |
|
|
602 | static void |
|
|
603 | mat_invert (matrix mat, rxvt_img::nv (&inv)[3][3]) |
|
|
604 | { |
|
|
605 | rxvt_img::nv s0 = mat [2][2] * mat [1][1] - mat [2][1] * mat [1][2]; |
|
|
606 | rxvt_img::nv s1 = mat [2][1] * mat [0][2] - mat [2][2] * mat [0][1]; |
|
|
607 | rxvt_img::nv s2 = mat [1][2] * mat [0][1] - mat [1][1] * mat [0][2]; |
|
|
608 | |
|
|
609 | rxvt_img::nv invdet = 1. / (mat [0][0] * s0 + mat [1][0] * s1 + mat [2][0] * s2); |
|
|
610 | |
|
|
611 | inv [0][0] = invdet * s0; |
|
|
612 | inv [0][1] = invdet * s1; |
|
|
613 | inv [0][2] = invdet * s2; |
|
|
614 | |
|
|
615 | inv [1][0] = invdet * (mat [2][0] * mat [1][2] - mat [2][2] * mat [1][0]); |
|
|
616 | inv [1][1] = invdet * (mat [2][2] * mat [0][0] - mat [2][0] * mat [0][2]); |
|
|
617 | inv [1][2] = invdet * (mat [1][0] * mat [0][2] - mat [1][2] * mat [0][0]); |
|
|
618 | |
|
|
619 | inv [2][0] = invdet * (mat [2][1] * mat [1][0] - mat [2][0] * mat [1][1]); |
|
|
620 | inv [2][1] = invdet * (mat [2][0] * mat [0][1] - mat [2][1] * mat [0][0]); |
|
|
621 | inv [2][2] = invdet * (mat [1][1] * mat [0][0] - mat [1][0] * mat [0][1]); |
|
|
622 | } |
|
|
623 | |
|
|
624 | static rxvt_img::nv |
|
|
625 | mat_apply (matrix mat, int i, rxvt_img::nv x, rxvt_img::nv y) |
|
|
626 | { |
|
|
627 | rxvt_img::nv v = mat [i][0] * x + mat [i][1] * y + mat [i][2]; |
|
|
628 | rxvt_img::nv w = mat [2][0] * x + mat [2][1] * y + mat [2][2]; |
|
|
629 | |
|
|
630 | return v * (1. / w); |
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631 | } |
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632 | |
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633 | static void |
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634 | mat_mult (matrix a, matrix b, matrix r) |
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635 | { |
392 | for (int i = 0; i < 3; ++i) |
636 | for (int i = 0; i < 3; ++i) |
393 | for (int j = 0; j < 3; ++j) |
637 | for (int j = 0; j < 3; ++j) |
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638 | r [i][j] = a [i][0] * b [0][j] |
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639 | + a [i][1] * b [1][j] |
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640 | + a [i][2] * b [2][j]; |
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641 | } |
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642 | |
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643 | static void |
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644 | mat_trans (rxvt_img::nv x, rxvt_img::nv y, matrix mat) |
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645 | { |
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646 | mat [0][0] = 1; mat [0][1] = 0; mat [0][2] = x; |
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647 | mat [1][0] = 0; mat [1][1] = 1; mat [1][2] = y; |
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648 | mat [2][0] = 0; mat [2][1] = 0; mat [2][2] = 1; |
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649 | } |
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650 | |
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651 | rxvt_img * |
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652 | rxvt_img::transform (nv matrix[3][3]) |
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653 | { |
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654 | // calculate new pixel bounding box coordinates |
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655 | nv r[2], rmin[2], rmax[2]; |
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656 | |
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657 | for (int i = 0; i < 2; ++i) |
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658 | { |
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659 | nv v; |
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660 | |
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661 | v = mat_apply (matrix, i, 0+x, 0+y); rmin [i] = rmax [i] = v; r [i] = v; |
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662 | v = mat_apply (matrix, i, w+x, 0+y); min_it (rmin [i], v); max_it (rmax [i], v); |
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663 | v = mat_apply (matrix, i, 0+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
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664 | v = mat_apply (matrix, i, w+x, h+y); min_it (rmin [i], v); max_it (rmax [i], v); |
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665 | } |
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666 | |
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667 | float sx = rmin [0] - x; |
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668 | float sy = rmin [1] - y; |
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669 | |
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670 | // TODO: adjust matrix for subpixel accuracy |
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671 | int nx = floor (rmin [0]); |
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672 | int ny = floor (rmin [1]); |
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673 | |
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674 | int new_width = ceil (rmax [0] - rmin [0]); |
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675 | int new_height = ceil (rmax [1] - rmin [1]); |
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676 | |
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677 | ::matrix tr, tmp; |
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678 | mat_trans (x, y, tr); |
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679 | mat_mult (matrix, tr, tmp); |
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680 | mat_trans (-x, -y, tr); |
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681 | mat_mult (tr, tmp, matrix); |
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682 | |
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683 | ::matrix inv; |
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684 | mat_invert (matrix, inv); |
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685 | |
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686 | rxvt_img *img = new rxvt_img (s, format, nx, ny, new_width, new_height, repeat); |
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687 | img->alloc (); |
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688 | |
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689 | Display *dpy = s->display->dpy; |
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690 | Picture src = picture (); |
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691 | Picture dst = XRenderCreatePicture (dpy, img->pm, img->format, 0, 0); |
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692 | |
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693 | XTransform xfrm; |
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694 | |
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695 | for (int i = 0; i < 3; ++i) |
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696 | for (int j = 0; j < 3; ++j) |
394 | xfrm.matrix [i][j] = XDoubleToFixed (matrix [i * 3 + j]); |
697 | xfrm.matrix [i][j] = XDoubleToFixed (inv [i][j]); |
395 | |
698 | |
396 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
699 | XRenderSetPictureFilter (dpy, src, "good", 0, 0); |
397 | XRenderSetPictureTransform (dpy, src, &xfrm); |
700 | XRenderSetPictureTransform (dpy, src, &xfrm); |
398 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, new_width, new_height); |
701 | XRenderComposite (dpy, PictOpSrc, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
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702 | #if 1 |
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703 | { |
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704 | XRenderColor rc = { 65535,0,0,65535 }; |
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705 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, new_width, new_height); |
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706 | }{ |
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707 | XRenderColor rc = { 0,0,0,65535 }; |
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708 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 1, 1, new_width - 2, new_height - 2); |
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|
709 | } |
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710 | XRenderComposite (dpy, PictOpOver, src, None, dst, sx, sy, 0, 0, 0, 0, new_width, new_height); |
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|
711 | #endif |
399 | |
712 | |
400 | XRenderFreePicture (dpy, src); |
713 | XRenderFreePicture (dpy, src); |
401 | XRenderFreePicture (dpy, dst); |
714 | XRenderFreePicture (dpy, dst); |
402 | |
715 | |
403 | return img; |
716 | return img; |
404 | } |
717 | } |
405 | |
718 | |
406 | rxvt_img * |
719 | rxvt_img * |
407 | rxvt_img::scale (int new_width, int new_height) |
720 | rxvt_img::scale (int new_width, int new_height) |
408 | { |
721 | { |
409 | double matrix[9] = { |
722 | if (w == new_width && h == new_height) |
410 | w / (double)new_width, 0, 0, |
723 | return clone (); |
411 | 0, h / (double)new_height, 0, |
724 | |
|
|
725 | nv matrix[3][3] = { |
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|
726 | { new_width / (nv)w, 0, 0 }, |
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|
727 | { 0, new_height / (nv)h, 0 }, |
412 | 0, 0, 1 |
728 | { 0, 0, 1 } |
413 | }; |
729 | }; |
414 | |
730 | |
415 | return transform (new_width, new_height, matrix); |
731 | int old_repeat_mode = repeat; |
416 | } |
732 | repeat = RepeatPad; // not right, but xrender can't properly scale it seems |
417 | |
733 | |
|
|
734 | rxvt_img *img = transform (matrix); |
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|
735 | |
|
|
736 | repeat = old_repeat_mode; |
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|
737 | img->repeat = repeat; |
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|
738 | |
|
|
739 | return img; |
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|
740 | } |
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|
741 | |
418 | rxvt_img * |
742 | rxvt_img * |
419 | rxvt_img::rotate (int new_width, int new_height, int x, int y, double phi, int repeat) |
743 | rxvt_img::rotate (int cx, int cy, nv phi) |
420 | { |
744 | { |
421 | double s = sin (phi); |
745 | nv s = sin (phi); |
422 | double c = cos (phi); |
746 | nv c = cos (phi); |
423 | |
747 | |
424 | double matrix[9] = { |
748 | nv matrix[3][3] = { |
|
|
749 | #if 0 |
425 | c, -s, -c * x + s * y + x, |
750 | { c, -s, cx - c * cx + s * cy }, |
426 | s, c, -s * x - c * y + y, |
751 | { s, c, cy - s * cx - c * cy }, |
427 | 0, 0, 1 |
752 | { 0, 0, 1 } |
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|
753 | #else |
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|
754 | { c, -s, 0 }, |
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|
755 | { s, c, 0 }, |
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|
756 | { 0, 0, 1 } |
|
|
757 | #endif |
428 | }; |
758 | }; |
429 | |
759 | |
430 | return transform (new_width, new_height, matrix, repeat); |
760 | move (-cx, -cy); |
431 | } |
761 | rxvt_img *img = transform (matrix); |
|
|
762 | move ( cx, cy); |
|
|
763 | img->move (cx, cy); |
432 | |
764 | |
|
|
765 | return img; |
|
|
766 | } |
|
|
767 | |
433 | rxvt_img * |
768 | rxvt_img * |
434 | rxvt_img::convert_to (XRenderPictFormat *new_format) |
769 | rxvt_img::convert_format (XRenderPictFormat *new_format, const rgba &bg) |
435 | { |
770 | { |
|
|
771 | if (new_format == format) |
|
|
772 | return clone (); |
|
|
773 | |
436 | rxvt_img *img = new rxvt_img (s, new_format, w, h); |
774 | rxvt_img *img = new rxvt_img (s, new_format, x, y, w, h, repeat); |
|
|
775 | img->alloc (); |
437 | |
776 | |
438 | Display *dpy = s->display->dpy; |
777 | Display *dpy = s->display->dpy; |
439 | Picture src = XRenderCreatePicture (dpy, pm, format, 0, 0); |
778 | Picture src = picture (); |
440 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
779 | Picture dst = XRenderCreatePicture (dpy, img->pm, new_format, 0, 0); |
|
|
780 | int op = PictOpSrc; |
441 | |
781 | |
|
|
782 | if (format->direct.alphaMask && !new_format->direct.alphaMask) |
|
|
783 | { |
|
|
784 | // does it have to be that complicated |
|
|
785 | XRenderColor rc = { bg.r, bg.g, bg.b, bg.a }; |
|
|
786 | XRenderFillRectangle (dpy, PictOpSrc, dst, &rc, 0, 0, w, h); |
|
|
787 | |
|
|
788 | op = PictOpOver; |
|
|
789 | } |
|
|
790 | |
442 | XRenderComposite (dpy, PictOpSrc, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
791 | XRenderComposite (dpy, op, src, None, dst, 0, 0, 0, 0, 0, 0, w, h); |
443 | |
792 | |
444 | XRenderFreePicture (dpy, src); |
793 | XRenderFreePicture (dpy, src); |
445 | XRenderFreePicture (dpy, dst); |
794 | XRenderFreePicture (dpy, dst); |
446 | |
795 | |
447 | return img; |
796 | return img; |
448 | } |
797 | } |
449 | |
798 | |
|
|
799 | rxvt_img * |
|
|
800 | rxvt_img::blend (rxvt_img *img, nv factor) |
|
|
801 | { |
|
|
802 | rxvt_img *img2 = clone (); |
|
|
803 | Display *dpy = s->display->dpy; |
|
|
804 | Picture src = img->picture (); |
|
|
805 | Picture dst = XRenderCreatePicture (dpy, img2->pm, img2->format, 0, 0); |
|
|
806 | Picture mask = create_xrender_mask (dpy, img->pm, False, False); |
|
|
807 | |
|
|
808 | XRenderColor mask_c; |
|
|
809 | |
|
|
810 | mask_c.alpha = float_to_component (factor); |
|
|
811 | mask_c.red = |
|
|
812 | mask_c.green = |
|
|
813 | mask_c.blue = 0; |
|
|
814 | XRenderFillRectangle (dpy, PictOpSrc, mask, &mask_c, 0, 0, 1, 1); |
|
|
815 | |
|
|
816 | XRenderComposite (dpy, PictOpOver, src, mask, dst, 0, 0, 0, 0, 0, 0, w, h); |
|
|
817 | |
|
|
818 | XRenderFreePicture (dpy, src); |
|
|
819 | XRenderFreePicture (dpy, dst); |
|
|
820 | XRenderFreePicture (dpy, mask); |
|
|
821 | |
|
|
822 | return img2; |
|
|
823 | } |
|
|
824 | |
450 | #endif |
825 | #endif |
451 | |
826 | |