cinelerra/fadeengine.C

   1 #include "fadeengine.h"
   2 #include "vframe.h"
   3
   4 #include <stdint.h>
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14 FadeUnit::FadeUnit(FadeEngine *server)
  15  : LoadClient(server)
  16 {
  17         this->engine = server;
  18 }
  19
  20 FadeUnit::~FadeUnit()
  21 {
  22 }
  23
  24
  25 #define APPLY_FADE(equivalent, \
  26         input_rows,  \
  27         output_rows,  \
  28         max,  \
  29         type,  \
  30         temp_type,  \
  31         chroma_zero,  \
  32         components) \
  33 { \
  34         temp_type opacity = (temp_type)(alpha * max); \
  35         temp_type transparency = (temp_type)(max - opacity); \
  36         temp_type product = (temp_type) (chroma_zero * transparency); \
  37  \
  38         for(int i = row1; i < row2; i++) \
  39         { \
  40                 type *in_row = (type*)input_rows[i]; \
  41                 type *out_row = (type*)output_rows[i]; \
  42  \
  43                 for(int j = 0; j < width; j++, out_row += components, in_row += components) \
  44                 { \
  45                         if(components == 3) \
  46                         { \
  47                                 out_row[0] =  \
  48                                         (type)((temp_type)in_row[0] * opacity / max); \
  49                                 out_row[1] =  \
  50                                         (type)(((temp_type)in_row[1] * opacity +  \
  51                                                 product) / max); \
  52                                 out_row[2] =  \
  53                                         (type)(((temp_type)in_row[2] * opacity +  \
  54                                                 product) / max); \
  55                         } \
  56                         else \
  57                         { \
  58                                 if(!equivalent) \
  59                                 { \
  60                                         out_row[0] = in_row[0]; \
  61                                         out_row[1] = in_row[1]; \
  62                                         out_row[2] = in_row[2]; \
  63                                 } \
  64  \
  65                                 if(in_row[3] == max) \
  66                                         out_row[3] = opacity; \
  67                                 else \
  68                                 out_row[3] =  \
  69                                         (type)((temp_type)in_row[3] * opacity / max); \
  70                         } \
  71                 } \
  72         } \
  73 }
  74
  75
  76
  77 void FadeUnit::process_package(LoadPackage *package)
  78 {
  79         FadePackage *pkg = (FadePackage*)package;
  80         VFrame *output = engine->output;
  81         VFrame *input = engine->input;
  82         float alpha = engine->alpha;
  83         int row1 = pkg->out_row1;
  84         int row2 = pkg->out_row2;
  85         unsigned char **in_rows = input->get_rows();
  86         unsigned char **out_rows = output->get_rows();
  87         int width = input->get_w();
  88
  89         if(input->get_rows()[0] == output->get_rows()[0])
  90         {
  91                 switch(input->get_color_model())
  92                 {
  93                         case BC_RGB888:
  94                                 APPLY_FADE(1, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x0, 3);
  95                                 break;
  96                         case BC_RGBA8888:
  97                                 APPLY_FADE(1, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x0, 4);
  98                                 break;
  99                         case BC_RGB_FLOAT:
 100                                 APPLY_FADE(1, out_rows, in_rows, 1.0, float, float, 0x0, 3);
 101                                 break;
 102                         case BC_RGBA_FLOAT:
 103                                 APPLY_FADE(1, out_rows, in_rows, 1.0, float, float, 0x0, 4);
 104                                 break;
 105                         case BC_RGB161616:
 106                                 APPLY_FADE(1, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x0, 3);
 107                                 break;
 108                         case BC_RGBA16161616:
 109                                 APPLY_FADE(1, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x0, 4);
 110                                 break;
 111                         case BC_YUV888:
 112                                 APPLY_FADE(1, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x80, 3);
 113                                 break;
 114                         case BC_YUVA8888:
 115                                 APPLY_FADE(1, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x80, 4);
 116                                 break;
 117                         case BC_YUV161616:
 118                                 APPLY_FADE(1, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x8000, 3);
 119                                 break;
 120                         case BC_YUVA16161616:
 121                                 APPLY_FADE(1, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x8000, 4);
 122                                 break;
 123                 }
 124         }
 125         else
 126         {
 127                 switch(input->get_color_model())
 128                 {
 129                         case BC_RGB888:
 130                                 APPLY_FADE(0, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x0, 3);
 131                                 break;
 132                         case BC_RGBA8888:
 133                                 APPLY_FADE(0, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x0, 4);
 134                                 break;
 135                         case BC_RGB_FLOAT:
 136                                 APPLY_FADE(0, out_rows, in_rows, 1.0, float, float, 0x0, 3);
 137                                 break;
 138                         case BC_RGBA_FLOAT:
 139                                 APPLY_FADE(0, out_rows, in_rows, 1.0, float, float, 0x0, 4);
 140                                 break;
 141                         case BC_RGB161616:
 142                                 APPLY_FADE(0, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x0, 3);
 143                                 break;
 144                         case BC_RGBA16161616:
 145                                 APPLY_FADE(0, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x0, 4);
 146                                 break;
 147                         case BC_YUV888:
 148                                 APPLY_FADE(0, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x80, 3);
 149                                 break;
 150                         case BC_YUVA8888:
 151                                 APPLY_FADE(0, out_rows, in_rows, 0xff, unsigned char, uint16_t, 0x80, 4);
 152                                 break;
 153                         case BC_YUV161616:
 154                                 APPLY_FADE(0, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x8000, 3);
 155                                 break;
 156                         case BC_YUVA16161616:
 157                                 APPLY_FADE(0, out_rows, in_rows, 0xffff, uint16_t, uint32_t, 0x8000, 4);
 158                                 break;
 159                 }
 160         }
 161 }
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171 FadeEngine::FadeEngine(int cpus)
 172  : LoadServer(cpus, cpus)
 173 {
 174 }
 175
 176 FadeEngine::~FadeEngine()
 177 {
 178 }
 179
 180 void FadeEngine::do_fade(VFrame *output, VFrame *input, float alpha)
 181 {
 182         this->output = output;
 183         this->input = input;
 184         this->alpha = alpha;
 185
 186 // Sanity
 187         if(alpha == 1)
 188                 output->copy_from(input);
 189         else
 190                 process_packages();
 191 }
 192
 193
 194 void FadeEngine::init_packages()
 195 {
 196         for(int i = 0; i < get_total_packages(); i++)
 197         {
 198                 FadePackage *package = (FadePackage*)get_package(i);
 199                 package->out_row1 = input->get_h() * i / get_total_packages();
 200                 package->out_row2 = input->get_h() * (i + 1) / get_total_packages();
 201         }
 202 }
 203
 204 LoadClient* FadeEngine::new_client()
 205 {
 206         return new FadeUnit(this);
 207 }
 208
 209 LoadPackage* FadeEngine::new_package()
 210 {
 211         return new FadePackage;
 212 }
 213
 214
 215 FadePackage::FadePackage()
 216 {
 217 }
 218
 219 /*
 220 //      Local Variables:
 221 //      mode: C++
 222 //      c-file-style: "linux"
 223 //      End:
 224 */