cinelerra-5.1/cinelerra/playback3d.h

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2009 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef PLAYBACK3D_H
  23 #define PLAYBACK3D_H
  24
  25 #include "arraylist.h"
  26 #include "bccolors.h"
  27 #include "bcpixmap.inc"
  28 #include "bcsynchronous.h"
  29 #include "bcwindowbase.inc"
  30 #include "canvas.inc"
  31 #include "condition.inc"
  32 #include "maskauto.inc"
  33 #include "maskautos.inc"
  34 #include "mutex.inc"
  35 #include "mwindow.inc"
  36 #include "pluginclient.inc"
  37 #include "thread.h"
  38 #include "vframe.inc"
  39
  40
  41
  42
  43 // use static presets YUV in bccolors.h
  44 #define BC_GL_MATRIX(shader, mat) \
  45         glUniformMatrix3fv(glGetUniformLocation(shader, #mat), 1, 0, YUV::mat)
  46
  47 #define BC_GL_YMINF(shader,mat) \
  48         glUniform1f(glGetUniformLocation(shader, "yminf"), YUV::mat[9])
  49
  50 #define BC_GL_RGB_TO_YUV(shader) do { \
  51         BC_GL_MATRIX(shader, rgb_to_yuv_matrix); \
  52         BC_GL_YMINF(shader, rgb_to_yuv_matrix); \
  53 } while(0)
  54
  55 #define BC_GL_YUV_TO_RGB(shader) do { \
  56         BC_GL_MATRIX(shader, yuv_to_rgb_matrix); \
  57         BC_GL_YMINF(shader, yuv_to_rgb_matrix); \
  58 } while(0)
  59
  60 #define BC_GL_COLORS(shader) do { \
  61         BC_GL_MATRIX(shader, yuv_to_rgb_matrix); \
  62         BC_GL_MATRIX(shader, rgb_to_yuv_matrix); \
  63         BC_GL_YMINF(shader, rgb_to_yuv_matrix); \
  64 } while(0)
  65
  66
  67 #define bc_gl_yuv_to_rgb "uniform mat3 yuv_to_rgb_matrix;\n"
  68 #define bc_gl_rgb_to_yuv "uniform mat3 rgb_to_yuv_matrix;\n"
  69 #define bc_gl_yminf      "uniform float yminf;\n"
  70 #define bc_gl_colors bc_gl_yuv_to_rgb bc_gl_rgb_to_yuv bc_gl_yminf
  71
  72 // Macros for useful fragment shaders
  73 #define YUV_TO_RGB_FRAG(PIXEL) \
  74         PIXEL ".rgb -= vec3(yminf, 0.5, 0.5);\n" \
  75         PIXEL ".rgb = yuv_to_rgb_matrix * " PIXEL ".rgb;\n"
  76
  77 #define RGB_TO_YUV_FRAG(PIXEL) \
  78         PIXEL ".rgb = rgb_to_yuv_matrix * " PIXEL ".rgb;\n" \
  79         PIXEL ".rgb += vec3(yminf, 0.5, 0.5);\n"
  80
  81 #define RGB_TO_HSV_FRAG(PIXEL) \
  82         "{\n" \
  83         "float r, g, b;\n" \
  84         "float h, s, v;\n" \
  85         "float min, max, delta;\n" \
  86         "float f, p, q, t;\n" \
  87         "r = " PIXEL ".r;\n" \
  88         "g = " PIXEL ".g;\n" \
  89         "b = " PIXEL ".b;\n" \
  90         "min = ((r < g) ? r : g) < b ? ((r < g) ? r : g) : b;\n" \
  91         "max = ((r > g) ? r : g) > b ? ((r > g) ? r : g) : b;\n" \
  92         "v = max;\n" \
  93         "delta = max - min;\n" \
  94         "if(max != 0.0 && delta != 0.0)\n" \
  95     "{\n" \
  96         "    s = delta / max;\n" \
  97         "       if(r == max)\n" \
  98     "           h = (g - b) / delta;\n" \
  99         "       else \n" \
 100         "       if(g == max)\n" \
 101     "           h = 2.0 + (b - r) / delta;\n" \
 102         "       else\n" \
 103     "           h = 4.0 + (r - g) / delta;\n" \
 104         "\n" \
 105         "       h *= 60.0;\n" \
 106         "       if(h < 0.0)\n" \
 107     "           h += 360.0;\n" \
 108         "}\n" \
 109         "else\n"  \
 110         "{\n" \
 111     "    s = 0.0;\n" \
 112     "    h = -1.0;\n" \
 113         "}\n" \
 114         "" PIXEL ".r = h;\n" \
 115         "" PIXEL ".g = s;\n" \
 116         "" PIXEL ".b = v;\n" \
 117         "}\n"
 118
 119 #define HSV_TO_RGB_FRAG(PIXEL) \
 120         "{\n" \
 121     "int i;\n" \
 122         "float r, g, b;\n" \
 123         "float h, s, v;\n" \
 124         "float min, max, delta;\n" \
 125         "float f, p, q, t;\n" \
 126         "h = " PIXEL ".r;\n" \
 127         "s = " PIXEL ".g;\n" \
 128         "v = " PIXEL ".b;\n" \
 129     "if(s == 0.0) \n" \
 130         "{\n" \
 131     "    r = g = b = v;\n" \
 132     "}\n" \
 133         "else\n" \
 134         "{\n" \
 135     "   h /= 60.0;\n" \
 136     "   i = int(h);\n" \
 137     "   f = h - float(i);\n" \
 138     "   p = v * (1.0 - s);\n" \
 139     "   q = v * (1.0 - s * f);\n" \
 140     "   t = v * (1.0 - s * (1.0 - f));\n" \
 141         "\n" \
 142     "   if(i == 0)\n" \
 143         "       {\n" \
 144     "           r = v;\n" \
 145     "           g = t;\n" \
 146     "           b = p;\n" \
 147     "    }\n" \
 148         "       else\n" \
 149         "       if(i == 1)\n" \
 150         "       {\n" \
 151     "           r = q;\n" \
 152     "           g = v;\n" \
 153     "           b = p;\n" \
 154     "    }\n" \
 155         "       else\n" \
 156         "       if(i == 2)\n" \
 157         "       {\n" \
 158     "           r = p;\n" \
 159     "           g = v;\n" \
 160     "           b = t;\n" \
 161     "   }\n" \
 162         "       else\n" \
 163         "       if(i == 3)\n" \
 164         "       {\n" \
 165     "           r = p;\n" \
 166     "           g = q;\n" \
 167     "           b = v;\n" \
 168     "   }\n" \
 169         "       else\n" \
 170         "       if(i == 4)\n" \
 171         "       {\n" \
 172     "           r = t;\n" \
 173     "           g = p;\n" \
 174     "           b = v;\n" \
 175     "    }\n" \
 176         "       else\n" \
 177         "       if(i == 5)\n" \
 178         "       {\n" \
 179     "           r = v;\n" \
 180     "           g = p;\n" \
 181     "           b = q;\n" \
 182     "   }\n" \
 183         "}\n" \
 184         "" PIXEL ".r = r;\n" \
 185         "" PIXEL ".g = g;\n" \
 186         "" PIXEL ".b = b;\n" \
 187         "}\n"
 188
 189 class Playback3DCommand : public BC_SynchronousCommand
 190 {
 191 public:
 192         Playback3DCommand();
 193         void copy_from(BC_SynchronousCommand *command);
 194
 195 // Extra commands
 196         enum
 197         {
 198 // 5
 199                 WRITE_BUFFER = LAST_COMMAND,
 200                 CLEAR_OUTPUT,
 201                 OVERLAY,
 202                 DO_FADE,
 203                 DO_MASK,
 204                 PLUGIN,
 205                 CLEAR_INPUT,
 206                 DO_CAMERA,
 207                 COPY_FROM,
 208                 CONVERT_CMODEL
 209         };
 210
 211         Canvas *canvas;
 212         int is_cleared;
 213
 214 // Parameters for overlay command
 215         float in_x1;
 216         float in_y1;
 217         float in_x2;
 218         float in_y2;
 219         float out_x1;
 220         float out_y1;
 221         float out_x2;
 222         float out_y2;
 223 // 0 - 1
 224         float alpha;
 225         int mode;
 226         int interpolation_type;
 227         VFrame *input;
 228         int want_texture;
 229         int is_nested;
 230
 231         int dst_cmodel;
 232         int64_t start_position_project;
 233         MaskAutos *keyframe_set;
 234         MaskAuto *keyframe;
 235         MaskAuto *default_auto;
 236         PluginClient *plugin_client;
 237 };
 238
 239
 240 class Playback3D : public BC_Synchronous
 241 {
 242 public:
 243         Playback3D(MWindow *mwindow);
 244         ~Playback3D();
 245
 246         BC_SynchronousCommand* new_command();
 247         void handle_command(BC_SynchronousCommand *command);
 248
 249 // Called by VDeviceX11::write_buffer during video playback
 250         void write_buffer(Canvas *canvas,
 251                 VFrame *frame,
 252                 float in_x1,
 253                 float in_y1,
 254                 float in_x2,
 255                 float in_y2,
 256                 float out_x1,
 257                 float out_y1,
 258                 float out_x2,
 259                 float out_y2,
 260                 int is_cleared);
 261
 262 // Reads from pbuffer to either RAM or texture and updates the dst state
 263 // want_texture - causes read into texture if 1
 264         void copy_from(Canvas *canvas,
 265                 VFrame *dst,
 266                 VFrame *src,
 267                 int want_texture = 0);
 268
 269 // Clear framebuffer before composing virtual console
 270 // output - passed when rendering refresh frame.  If 0, the canvas is cleared.
 271         void clear_output(Canvas *canvas, VFrame *output);
 272
 273         void do_fade(Canvas *canvas, VFrame *frame, float fade);
 274         void convert_cmodel(Canvas *canvas, VFrame *output, int dst_cmodel);
 275
 276         void do_mask(Canvas *canvas,
 277                 VFrame *output,
 278                 int64_t start_position_project,
 279                 MaskAutos *keyframe_set,
 280                 MaskAuto *keyframe,
 281                 MaskAuto *default_auto);
 282
 283
 284 // Overlay a virtual node on the framebuffer
 285         void overlay(Canvas *canvas,
 286                 VFrame *input,
 287                 float in_x1,
 288                 float in_y1,
 289                 float in_x2,
 290                 float in_y2,
 291                 float out_x1,
 292                 float out_y1,
 293                 float out_x2,
 294                 float out_y2,
 295                 float alpha,        // 0 - 1
 296                 int mode,
 297                 int interpolation_type,
 298 // supplied if rendering single frame to PBuffer.
 299                 VFrame *output = 0,
 300                 int is_nested = 0);
 301
 302
 303         int run_plugin(Canvas *canvas, PluginClient *client);
 304
 305         void clear_input(Canvas *canvas, VFrame *frame);
 306         void do_camera(Canvas *canvas,
 307                 VFrame *output,
 308                 VFrame *input,
 309                 float in_x1,
 310                 float in_y1,
 311                 float in_x2,
 312                 float in_y2,
 313                 float out_x1,
 314                 float out_y1,
 315                 float out_x2,
 316                 float out_y2);
 317
 318 private:
 319 // Called by write_buffer and clear_frame to initialize OpenGL flags
 320         void init_frame(Playback3DCommand *command);
 321         void write_buffer_sync(Playback3DCommand *command);
 322         void draw_output(Playback3DCommand *command);
 323         void clear_output_sync(Playback3DCommand *command);
 324         void clear_input_sync(Playback3DCommand *command);
 325         void overlay_sync(Playback3DCommand *command);
 326 // Read frame buffer back into texture for overlay operation
 327         void enable_overlay_texture(Playback3DCommand *command);
 328         void do_fade_sync(Playback3DCommand *command);
 329         void do_mask_sync(Playback3DCommand *command);
 330         void run_plugin_sync(Playback3DCommand *command);
 331         void do_camera_sync(Playback3DCommand *command);
 332 //      void draw_refresh_sync(Playback3DCommand *command);
 333         void copy_from_sync(Playback3DCommand *command);
 334         void convert_cmodel_sync(Playback3DCommand *command);
 335
 336 // Print errors from shader compilation
 337         void print_error(unsigned int object, int is_program);
 338
 339 // This quits the program when it's 1.
 340         MWindow *mwindow;
 341 // Temporaries for render to texture
 342         BC_Texture *temp_texture;
 343 // This is set by clear_output and used in compositing directly
 344 // to the output framebuffer.
 345         int canvas_w;
 346         int canvas_h;
 347 };
 348
 349
 350
 351
 352 #endif