A basic graphics package for the LPC4088 Display Module.
Dependents: lpc4088_displaymodule_demo_sphere sampleGUI sampleEmptyGUI lpc4088_displaymodule_fs_aid ... more
Fork of DMBasicGUI by
SlideShow/SlideShow.cpp@10:651861441108, 2015-01-26 (annotated)
- Committer:
- embeddedartists
- Date:
- Mon Jan 26 10:06:58 2015 +0100
- Revision:
- 10:651861441108
- Parent:
- 5:f4de114c31c3
- Child:
- 11:265884fa7fdd
- Added virtual destructors to avoid undefined behaviour
- Fixed compiler warnings
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
embeddedartists | 5:f4de114c31c3 | 1 | #include "SlideShow.h" |
embeddedartists | 5:f4de114c31c3 | 2 | #include "Image.h" |
embeddedartists | 5:f4de114c31c3 | 3 | #include "mbed_debug.h" |
embeddedartists | 5:f4de114c31c3 | 4 | #include "DMBoard.h" |
embeddedartists | 5:f4de114c31c3 | 5 | |
embeddedartists | 5:f4de114c31c3 | 6 | /****************************************************************************** |
embeddedartists | 5:f4de114c31c3 | 7 | * Defines and typedefs |
embeddedartists | 5:f4de114c31c3 | 8 | *****************************************************************************/ |
embeddedartists | 5:f4de114c31c3 | 9 | |
embeddedartists | 5:f4de114c31c3 | 10 | #define SLIDESHOW_DBG 0 |
embeddedartists | 5:f4de114c31c3 | 11 | |
embeddedartists | 5:f4de114c31c3 | 12 | #define NO_SLOT -12 /* Some constant to indicate that no slot is in use */ |
embeddedartists | 5:f4de114c31c3 | 13 | |
embeddedartists | 5:f4de114c31c3 | 14 | /* Helper macros for the Fade transition */ |
embeddedartists | 5:f4de114c31c3 | 15 | #define FADE_XRED(__in) (((__in)>>11)&0x1f) |
embeddedartists | 5:f4de114c31c3 | 16 | #define FADE_XGREEN(__in) (((__in)>>6)&0x3f) |
embeddedartists | 5:f4de114c31c3 | 17 | #define FADE_XBLUE(__in) ((__in)&0x1f) |
embeddedartists | 5:f4de114c31c3 | 18 | #define FADE_COMBINE(__old, __new, __mul) \ |
embeddedartists | 5:f4de114c31c3 | 19 | ( ((((FADE_XRED(__old)*(8-(__mul)))+(FADE_XRED(__new)*(__mul)))>>3)<<11) \ |
embeddedartists | 5:f4de114c31c3 | 20 | | ((((FADE_XGREEN(__old)*(8-(__mul)))+(FADE_XGREEN(__new)*(__mul)))>>3)<<5) \ |
embeddedartists | 5:f4de114c31c3 | 21 | | (((FADE_XBLUE(__old)*(8-(__mul)))+(FADE_XBLUE(__new)*(__mul)))>>3) ) |
embeddedartists | 5:f4de114c31c3 | 22 | |
embeddedartists | 5:f4de114c31c3 | 23 | |
embeddedartists | 5:f4de114c31c3 | 24 | /****************************************************************************** |
embeddedartists | 5:f4de114c31c3 | 25 | * Global variables |
embeddedartists | 5:f4de114c31c3 | 26 | *****************************************************************************/ |
embeddedartists | 5:f4de114c31c3 | 27 | |
embeddedartists | 5:f4de114c31c3 | 28 | extern volatile uint32_t msTicks; |
embeddedartists | 5:f4de114c31c3 | 29 | |
embeddedartists | 5:f4de114c31c3 | 30 | /****************************************************************************** |
embeddedartists | 5:f4de114c31c3 | 31 | * Private Functions |
embeddedartists | 5:f4de114c31c3 | 32 | *****************************************************************************/ |
embeddedartists | 5:f4de114c31c3 | 33 | |
embeddedartists | 5:f4de114c31c3 | 34 | void SlideShow::Command::print() |
embeddedartists | 5:f4de114c31c3 | 35 | { |
embeddedartists | 5:f4de114c31c3 | 36 | switch(type) |
embeddedartists | 5:f4de114c31c3 | 37 | { |
embeddedartists | 5:f4de114c31c3 | 38 | case Clear: |
embeddedartists | 5:f4de114c31c3 | 39 | printf("CMD: Clear screen\n"); |
embeddedartists | 5:f4de114c31c3 | 40 | break; |
embeddedartists | 5:f4de114c31c3 | 41 | case Goto: |
embeddedartists | 5:f4de114c31c3 | 42 | printf("CMD: Goto command %d\n", information); |
embeddedartists | 5:f4de114c31c3 | 43 | break; |
embeddedartists | 5:f4de114c31c3 | 44 | case LoadImage: |
embeddedartists | 5:f4de114c31c3 | 45 | printf("CMD: Load file %s into [%d]\n", fname, information); |
embeddedartists | 5:f4de114c31c3 | 46 | break; |
embeddedartists | 5:f4de114c31c3 | 47 | case Show: |
embeddedartists | 5:f4de114c31c3 | 48 | printf("CMD: Show image [%d] with %s transition\n", information, transition->typeString()); |
embeddedartists | 5:f4de114c31c3 | 49 | break; |
embeddedartists | 5:f4de114c31c3 | 50 | case Wait: |
embeddedartists | 5:f4de114c31c3 | 51 | printf("CMD: Wait %d ms\n", information); |
embeddedartists | 5:f4de114c31c3 | 52 | break; |
embeddedartists | 5:f4de114c31c3 | 53 | case Callout: |
embeddedartists | 5:f4de114c31c3 | 54 | printf("CMD: Callout %d\n", information); |
embeddedartists | 5:f4de114c31c3 | 55 | break; |
embeddedartists | 5:f4de114c31c3 | 56 | default: |
embeddedartists | 5:f4de114c31c3 | 57 | printf("Unknown command\n"); |
embeddedartists | 5:f4de114c31c3 | 58 | } |
embeddedartists | 5:f4de114c31c3 | 59 | } |
embeddedartists | 5:f4de114c31c3 | 60 | |
embeddedartists | 5:f4de114c31c3 | 61 | SlideShow::SlideShowError SlideShow::Command::handle(SlideShow* ss, int* seqIdx, int* lastTime) |
embeddedartists | 5:f4de114c31c3 | 62 | { |
embeddedartists | 5:f4de114c31c3 | 63 | SlideShowError result = Ok; |
embeddedartists | 5:f4de114c31c3 | 64 | |
embeddedartists | 5:f4de114c31c3 | 65 | //printf("[%03d] ", *seqIdx); print(); |
embeddedartists | 5:f4de114c31c3 | 66 | switch (type) |
embeddedartists | 5:f4de114c31c3 | 67 | { |
embeddedartists | 5:f4de114c31c3 | 68 | case Clear: |
embeddedartists | 5:f4de114c31c3 | 69 | // Use the 3rd back buffer as a fake image for the transition |
embeddedartists | 5:f4de114c31c3 | 70 | Image::ImageData_t d; |
embeddedartists | 5:f4de114c31c3 | 71 | d.height = ss->screenHeight; |
embeddedartists | 5:f4de114c31c3 | 72 | d.width = ss->screenWidth; |
embeddedartists | 5:f4de114c31c3 | 73 | d.pixels = &ss->ImageBackBuffer[ss->screenPixels*2]; |
embeddedartists | 5:f4de114c31c3 | 74 | d.pointerToFree = NULL; |
embeddedartists | 5:f4de114c31c3 | 75 | memset(d.pixels, information, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 76 | if (ss->CurrentSlot == NO_SLOT) { |
embeddedartists | 5:f4de114c31c3 | 77 | result = transition->execute(ss, NULL, &d); |
embeddedartists | 5:f4de114c31c3 | 78 | } else { |
embeddedartists | 5:f4de114c31c3 | 79 | result = transition->execute(ss, &(ss->PreparedImages[ss->CurrentSlot]), &d); |
embeddedartists | 5:f4de114c31c3 | 80 | } |
embeddedartists | 5:f4de114c31c3 | 81 | *lastTime = msTicks; |
embeddedartists | 5:f4de114c31c3 | 82 | *seqIdx+=1; |
embeddedartists | 5:f4de114c31c3 | 83 | break; |
embeddedartists | 5:f4de114c31c3 | 84 | |
embeddedartists | 5:f4de114c31c3 | 85 | case Goto: |
embeddedartists | 5:f4de114c31c3 | 86 | *seqIdx = information; |
embeddedartists | 5:f4de114c31c3 | 87 | break; |
embeddedartists | 5:f4de114c31c3 | 88 | |
embeddedartists | 5:f4de114c31c3 | 89 | case LoadImage: |
embeddedartists | 5:f4de114c31c3 | 90 | if ((result = ss->loadImage(fname, information)) != Ok) |
embeddedartists | 5:f4de114c31c3 | 91 | { |
embeddedartists | 5:f4de114c31c3 | 92 | printf("Failed to load image. Aborting...\n"); |
embeddedartists | 5:f4de114c31c3 | 93 | break; |
embeddedartists | 5:f4de114c31c3 | 94 | } |
embeddedartists | 5:f4de114c31c3 | 95 | *seqIdx+=1; |
embeddedartists | 5:f4de114c31c3 | 96 | break; |
embeddedartists | 5:f4de114c31c3 | 97 | |
embeddedartists | 5:f4de114c31c3 | 98 | case Show: |
embeddedartists | 5:f4de114c31c3 | 99 | if (ss->CurrentSlot == NO_SLOT) { |
embeddedartists | 5:f4de114c31c3 | 100 | result = transition->execute(ss, NULL, &(ss->PreparedImages[information])); |
embeddedartists | 5:f4de114c31c3 | 101 | } else { |
embeddedartists | 5:f4de114c31c3 | 102 | result = transition->execute(ss, &(ss->PreparedImages[ss->CurrentSlot]), &(ss->PreparedImages[information])); |
embeddedartists | 5:f4de114c31c3 | 103 | } |
embeddedartists | 5:f4de114c31c3 | 104 | if (result != Ok) { |
embeddedartists | 5:f4de114c31c3 | 105 | printf("Failed to show image. Aborting...\n"); |
embeddedartists | 5:f4de114c31c3 | 106 | break; |
embeddedartists | 5:f4de114c31c3 | 107 | } |
embeddedartists | 5:f4de114c31c3 | 108 | ss->CurrentSlot = information; |
embeddedartists | 5:f4de114c31c3 | 109 | *lastTime = msTicks; |
embeddedartists | 5:f4de114c31c3 | 110 | *seqIdx+=1; |
embeddedartists | 5:f4de114c31c3 | 111 | break; |
embeddedartists | 5:f4de114c31c3 | 112 | |
embeddedartists | 5:f4de114c31c3 | 113 | case Wait: |
embeddedartists | 5:f4de114c31c3 | 114 | ss->delay(*lastTime, information); |
embeddedartists | 5:f4de114c31c3 | 115 | *lastTime = msTicks; |
embeddedartists | 5:f4de114c31c3 | 116 | *seqIdx+=1; |
embeddedartists | 5:f4de114c31c3 | 117 | break; |
embeddedartists | 5:f4de114c31c3 | 118 | |
embeddedartists | 5:f4de114c31c3 | 119 | case Callout: |
embeddedartists | 5:f4de114c31c3 | 120 | if (ss->callout != NULL) { |
embeddedartists | 5:f4de114c31c3 | 121 | result = ss->callout(ss->calloutId, ss, information); |
embeddedartists | 5:f4de114c31c3 | 122 | } else { |
embeddedartists | 5:f4de114c31c3 | 123 | // Silently accept that no callout listener is registered |
embeddedartists | 5:f4de114c31c3 | 124 | } |
embeddedartists | 5:f4de114c31c3 | 125 | *seqIdx+=1; |
embeddedartists | 5:f4de114c31c3 | 126 | break; |
embeddedartists | 5:f4de114c31c3 | 127 | |
embeddedartists | 5:f4de114c31c3 | 128 | default: |
embeddedartists | 5:f4de114c31c3 | 129 | printf("Found unknown command at index %d\n", *seqIdx); |
embeddedartists | 5:f4de114c31c3 | 130 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 131 | } |
embeddedartists | 5:f4de114c31c3 | 132 | return result; |
embeddedartists | 5:f4de114c31c3 | 133 | } |
embeddedartists | 5:f4de114c31c3 | 134 | |
embeddedartists | 5:f4de114c31c3 | 135 | SlideShow::SlideShowError SlideShow::Transition::execute(SlideShow* ss, Image::ImageData_t* CurrentImage, Image::ImageData_t* NewImage) |
embeddedartists | 5:f4de114c31c3 | 136 | { |
embeddedartists | 5:f4de114c31c3 | 137 | SlideShowError result = Ok; |
embeddedartists | 5:f4de114c31c3 | 138 | |
embeddedartists | 5:f4de114c31c3 | 139 | do { |
embeddedartists | 5:f4de114c31c3 | 140 | |
embeddedartists | 5:f4de114c31c3 | 141 | // TODO: This would be a good place to handle rendering of differently sized images, |
embeddedartists | 5:f4de114c31c3 | 142 | // could unregister+register if NewImage is different from CurrentImage |
embeddedartists | 5:f4de114c31c3 | 143 | |
embeddedartists | 5:f4de114c31c3 | 144 | // Register with the Renderer if needed. |
embeddedartists | 5:f4de114c31c3 | 145 | if (ss->rendHnd == 0) { |
embeddedartists | 5:f4de114c31c3 | 146 | if (ss->rend == NULL) { |
embeddedartists | 5:f4de114c31c3 | 147 | printf("No registered renderer\n"); |
embeddedartists | 5:f4de114c31c3 | 148 | result = RuntimeError; |
embeddedartists | 5:f4de114c31c3 | 149 | break; |
embeddedartists | 5:f4de114c31c3 | 150 | } |
embeddedartists | 5:f4de114c31c3 | 151 | |
embeddedartists | 5:f4de114c31c3 | 152 | // time to register with the renderer |
embeddedartists | 5:f4de114c31c3 | 153 | ss->rendHnd = ss->rend->registerUser(ss->layer, ss->drawXoff, ss->drawYoff, |
embeddedartists | 5:f4de114c31c3 | 154 | NewImage->width, NewImage->height); |
embeddedartists | 5:f4de114c31c3 | 155 | if (ss->rendHnd == 0) { |
embeddedartists | 5:f4de114c31c3 | 156 | printf("Failed to register with renderer\n"); |
embeddedartists | 5:f4de114c31c3 | 157 | result = RuntimeError; |
embeddedartists | 5:f4de114c31c3 | 158 | break; |
embeddedartists | 5:f4de114c31c3 | 159 | } |
embeddedartists | 5:f4de114c31c3 | 160 | } |
embeddedartists | 5:f4de114c31c3 | 161 | |
embeddedartists | 5:f4de114c31c3 | 162 | switch (t) { |
embeddedartists | 5:f4de114c31c3 | 163 | case None: |
embeddedartists | 5:f4de114c31c3 | 164 | { |
embeddedartists | 5:f4de114c31c3 | 165 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 166 | } |
embeddedartists | 5:f4de114c31c3 | 167 | break; |
embeddedartists | 5:f4de114c31c3 | 168 | |
embeddedartists | 5:f4de114c31c3 | 169 | case LeftRight: // TODO: Note that this transition is only implemented for fullscreen mode |
embeddedartists | 5:f4de114c31c3 | 170 | { |
embeddedartists | 5:f4de114c31c3 | 171 | // Create a buffer with the old image |
embeddedartists | 5:f4de114c31c3 | 172 | if (CurrentImage == NULL) { |
embeddedartists | 5:f4de114c31c3 | 173 | memset(ss->ImageBackBuffer, 0, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 174 | } else { |
embeddedartists | 5:f4de114c31c3 | 175 | memcpy(ss->ImageBackBuffer, CurrentImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 176 | } |
embeddedartists | 5:f4de114c31c3 | 177 | int end = ss->screenWidth - LeftRight_PixelsToSkip; |
embeddedartists | 5:f4de114c31c3 | 178 | for (int x = 0; x < end; x += LeftRight_PixelsToSkip) |
embeddedartists | 5:f4de114c31c3 | 179 | { |
embeddedartists | 5:f4de114c31c3 | 180 | int off = 0; |
embeddedartists | 5:f4de114c31c3 | 181 | for (int y = 0; y < ss->screenHeight; y++) |
embeddedartists | 5:f4de114c31c3 | 182 | { |
embeddedartists | 5:f4de114c31c3 | 183 | memcpy(ss->ImageBackBuffer + (off+x), NewImage->pixels + (off+x), |
embeddedartists | 5:f4de114c31c3 | 184 | LeftRight_PixelsToSkip*sizeof(uint16_t)); |
embeddedartists | 5:f4de114c31c3 | 185 | off += ss->screenWidth; |
embeddedartists | 5:f4de114c31c3 | 186 | } |
embeddedartists | 5:f4de114c31c3 | 187 | |
embeddedartists | 5:f4de114c31c3 | 188 | // Show the updated image |
embeddedartists | 5:f4de114c31c3 | 189 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 190 | |
embeddedartists | 5:f4de114c31c3 | 191 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 192 | wait_ms(LeftRight_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 193 | } |
embeddedartists | 5:f4de114c31c3 | 194 | |
embeddedartists | 5:f4de114c31c3 | 195 | // Show final image |
embeddedartists | 5:f4de114c31c3 | 196 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 197 | } |
embeddedartists | 5:f4de114c31c3 | 198 | break; |
embeddedartists | 5:f4de114c31c3 | 199 | |
embeddedartists | 5:f4de114c31c3 | 200 | case DownUp: // TODO: Note that this transition is only implemented for fullscreen mode |
embeddedartists | 5:f4de114c31c3 | 201 | { |
embeddedartists | 5:f4de114c31c3 | 202 | // Create a buffer with the two images after each other, NewImage below |
embeddedartists | 5:f4de114c31c3 | 203 | if (CurrentImage == NULL) { |
embeddedartists | 5:f4de114c31c3 | 204 | memset(ss->ImageBackBuffer, 0, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 205 | } else { |
embeddedartists | 5:f4de114c31c3 | 206 | memcpy(ss->ImageBackBuffer, CurrentImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 207 | } |
embeddedartists | 5:f4de114c31c3 | 208 | memcpy(ss->ImageBackBuffer+ss->screenPixels, NewImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 209 | |
embeddedartists | 5:f4de114c31c3 | 210 | // We will be using a back buffer |
embeddedartists | 5:f4de114c31c3 | 211 | for (int i = DownUp_LineSkip/2; i < (ss->screenHeight-1); i+=DownUp_LineSkip) |
embeddedartists | 5:f4de114c31c3 | 212 | { |
embeddedartists | 5:f4de114c31c3 | 213 | // Show image by advancing what is shown one line at a time |
embeddedartists | 5:f4de114c31c3 | 214 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer + i*ss->screenWidth); |
embeddedartists | 5:f4de114c31c3 | 215 | |
embeddedartists | 5:f4de114c31c3 | 216 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 217 | wait_ms(DownUp_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 218 | } |
embeddedartists | 5:f4de114c31c3 | 219 | |
embeddedartists | 5:f4de114c31c3 | 220 | // show final image |
embeddedartists | 5:f4de114c31c3 | 221 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 222 | } |
embeddedartists | 5:f4de114c31c3 | 223 | break; |
embeddedartists | 5:f4de114c31c3 | 224 | |
embeddedartists | 5:f4de114c31c3 | 225 | case TopDown: // TODO: Note that this transition is only implemented for fullscreen mode |
embeddedartists | 5:f4de114c31c3 | 226 | { |
embeddedartists | 5:f4de114c31c3 | 227 | // Create a buffer with the two images after each other, NewImage above |
embeddedartists | 5:f4de114c31c3 | 228 | if (CurrentImage == NULL) { |
embeddedartists | 5:f4de114c31c3 | 229 | memset(ss->ImageBackBuffer+ss->screenPixels, 0, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 230 | } else { |
embeddedartists | 5:f4de114c31c3 | 231 | memcpy(ss->ImageBackBuffer+ss->screenPixels, CurrentImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 232 | } |
embeddedartists | 5:f4de114c31c3 | 233 | memcpy(ss->ImageBackBuffer, NewImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 234 | |
embeddedartists | 5:f4de114c31c3 | 235 | // We will be using a back buffer |
embeddedartists | 5:f4de114c31c3 | 236 | for (int i = ss->screenHeight - TopDown_LineSkip/2; i > 0; i-=TopDown_LineSkip) |
embeddedartists | 5:f4de114c31c3 | 237 | { |
embeddedartists | 5:f4de114c31c3 | 238 | // Show image by advancing what is shown one line at a time |
embeddedartists | 5:f4de114c31c3 | 239 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer + i*ss->screenWidth); |
embeddedartists | 5:f4de114c31c3 | 240 | |
embeddedartists | 5:f4de114c31c3 | 241 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 242 | wait_ms(TopDown_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 243 | } |
embeddedartists | 5:f4de114c31c3 | 244 | |
embeddedartists | 5:f4de114c31c3 | 245 | // show final image |
embeddedartists | 5:f4de114c31c3 | 246 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 247 | } |
embeddedartists | 5:f4de114c31c3 | 248 | break; |
embeddedartists | 5:f4de114c31c3 | 249 | |
embeddedartists | 5:f4de114c31c3 | 250 | case Blinds: |
embeddedartists | 5:f4de114c31c3 | 251 | { |
embeddedartists | 5:f4de114c31c3 | 252 | int i; |
embeddedartists | 5:f4de114c31c3 | 253 | int blockNumPixels = Blinds_LinesPerBlock * ss->screenWidth; |
embeddedartists | 5:f4de114c31c3 | 254 | int blockNumBytes = blockNumPixels * sizeof(uint16_t); |
embeddedartists | 5:f4de114c31c3 | 255 | image_t beamBlock = ss->ImageBackBuffer + ss->screenPixels; |
embeddedartists | 5:f4de114c31c3 | 256 | image_t bkgBlock = beamBlock + blockNumPixels; |
embeddedartists | 5:f4de114c31c3 | 257 | |
embeddedartists | 5:f4de114c31c3 | 258 | // Create a buffer with the old image |
embeddedartists | 5:f4de114c31c3 | 259 | if (CurrentImage == NULL) { |
embeddedartists | 5:f4de114c31c3 | 260 | memset(ss->ImageBackBuffer, 0, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 261 | } else { |
embeddedartists | 5:f4de114c31c3 | 262 | memcpy(ss->ImageBackBuffer, CurrentImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 263 | } |
embeddedartists | 5:f4de114c31c3 | 264 | |
embeddedartists | 5:f4de114c31c3 | 265 | // Create the two coloured blocks |
embeddedartists | 5:f4de114c31c3 | 266 | memset(beamBlock, Blinds_BeamColor, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 267 | memset(bkgBlock, Blinds_BackColor, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 268 | |
embeddedartists | 5:f4de114c31c3 | 269 | for (i = 0; i < ss->screenPixels; i += blockNumPixels) |
embeddedartists | 5:f4de114c31c3 | 270 | { |
embeddedartists | 5:f4de114c31c3 | 271 | // Draw the moving beam, erasing the old image |
embeddedartists | 5:f4de114c31c3 | 272 | memcpy(ss->ImageBackBuffer+i, beamBlock, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 273 | |
embeddedartists | 5:f4de114c31c3 | 274 | // Fill upp behind the beam with background color |
embeddedartists | 5:f4de114c31c3 | 275 | if (i > 0) { |
embeddedartists | 5:f4de114c31c3 | 276 | memcpy(ss->ImageBackBuffer+i-blockNumPixels, bkgBlock, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 277 | } |
embeddedartists | 5:f4de114c31c3 | 278 | |
embeddedartists | 5:f4de114c31c3 | 279 | // Show the updated image |
embeddedartists | 5:f4de114c31c3 | 280 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 281 | |
embeddedartists | 5:f4de114c31c3 | 282 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 283 | wait_ms(Blinds_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 284 | } |
embeddedartists | 5:f4de114c31c3 | 285 | memcpy(ss->ImageBackBuffer+i-blockNumPixels, bkgBlock, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 286 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 287 | wait_ms(Blinds_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 288 | |
embeddedartists | 5:f4de114c31c3 | 289 | for (i = 0; i < ss->screenPixels; i += blockNumPixels) |
embeddedartists | 5:f4de114c31c3 | 290 | { |
embeddedartists | 5:f4de114c31c3 | 291 | // Draw the moving beam, erasing the old image |
embeddedartists | 5:f4de114c31c3 | 292 | memcpy(ss->ImageBackBuffer+i, beamBlock, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 293 | |
embeddedartists | 5:f4de114c31c3 | 294 | // Fill upp behind the beam with the new image |
embeddedartists | 5:f4de114c31c3 | 295 | if (i > 0) { |
embeddedartists | 5:f4de114c31c3 | 296 | memcpy(ss->ImageBackBuffer+i-blockNumPixels, NewImage->pixels+i-blockNumPixels, blockNumBytes); |
embeddedartists | 5:f4de114c31c3 | 297 | } |
embeddedartists | 5:f4de114c31c3 | 298 | |
embeddedartists | 5:f4de114c31c3 | 299 | // Show image by advancing what is shown one line at a time |
embeddedartists | 5:f4de114c31c3 | 300 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 301 | |
embeddedartists | 5:f4de114c31c3 | 302 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 303 | wait_ms(Blinds_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 304 | } |
embeddedartists | 5:f4de114c31c3 | 305 | |
embeddedartists | 5:f4de114c31c3 | 306 | // show final image |
embeddedartists | 5:f4de114c31c3 | 307 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 308 | } |
embeddedartists | 5:f4de114c31c3 | 309 | break; |
embeddedartists | 5:f4de114c31c3 | 310 | |
embeddedartists | 5:f4de114c31c3 | 311 | case Fade: |
embeddedartists | 5:f4de114c31c3 | 312 | { |
embeddedartists | 5:f4de114c31c3 | 313 | // Create a buffer with the old image |
embeddedartists | 5:f4de114c31c3 | 314 | if (CurrentImage == NULL) { |
embeddedartists | 5:f4de114c31c3 | 315 | memset(ss->ImageBackBuffer, 0, ss->screenBytes * 2); // use an extra backbuffer |
embeddedartists | 5:f4de114c31c3 | 316 | } else { |
embeddedartists | 5:f4de114c31c3 | 317 | memcpy(ss->ImageBackBuffer, CurrentImage->pixels, ss->screenBytes); |
embeddedartists | 5:f4de114c31c3 | 318 | } |
embeddedartists | 5:f4de114c31c3 | 319 | |
embeddedartists | 10:651861441108 | 320 | uint32_t firstY = 0; |
embeddedartists | 10:651861441108 | 321 | uint32_t lastY = NewImage->height; |
embeddedartists | 10:651861441108 | 322 | for (uint32_t y = 0, off=0; y < NewImage->height; y++) { |
embeddedartists | 10:651861441108 | 323 | for (uint32_t x = 0; x < NewImage->width; x++) { |
embeddedartists | 5:f4de114c31c3 | 324 | off++; |
embeddedartists | 5:f4de114c31c3 | 325 | if (NewImage->pixels[off] != ss->ImageBackBuffer[off]) { |
embeddedartists | 5:f4de114c31c3 | 326 | firstY = y; |
embeddedartists | 5:f4de114c31c3 | 327 | y = NewImage->height; |
embeddedartists | 5:f4de114c31c3 | 328 | break; |
embeddedartists | 5:f4de114c31c3 | 329 | } |
embeddedartists | 5:f4de114c31c3 | 330 | } |
embeddedartists | 5:f4de114c31c3 | 331 | } |
embeddedartists | 10:651861441108 | 332 | for (uint32_t y = NewImage->height-1, off=NewImage->height*NewImage->width-1; y > firstY; y--) { |
embeddedartists | 10:651861441108 | 333 | for (uint32_t x = 0; x < NewImage->width; x++) { |
embeddedartists | 5:f4de114c31c3 | 334 | off--; |
embeddedartists | 5:f4de114c31c3 | 335 | if (NewImage->pixels[off] != ss->ImageBackBuffer[off]) { |
embeddedartists | 5:f4de114c31c3 | 336 | lastY = y; |
embeddedartists | 10:651861441108 | 337 | y = firstY; // to break the outer loop as well |
embeddedartists | 5:f4de114c31c3 | 338 | break; |
embeddedartists | 5:f4de114c31c3 | 339 | } |
embeddedartists | 5:f4de114c31c3 | 340 | } |
embeddedartists | 5:f4de114c31c3 | 341 | } |
embeddedartists | 5:f4de114c31c3 | 342 | |
embeddedartists | 5:f4de114c31c3 | 343 | // Gradually fade between the old and new images |
embeddedartists | 5:f4de114c31c3 | 344 | for (int pass = 1; pass < 8; pass++) |
embeddedartists | 5:f4de114c31c3 | 345 | { |
embeddedartists | 5:f4de114c31c3 | 346 | uint16_t* oldImg = CurrentImage==NULL ? &ss->ImageBackBuffer[ss->screenPixels] : &CurrentImage->pixels[firstY*NewImage->width]; |
embeddedartists | 5:f4de114c31c3 | 347 | uint16_t* newImg = &NewImage->pixels[firstY*NewImage->width]; |
embeddedartists | 5:f4de114c31c3 | 348 | uint16_t* dstImg = &ss->ImageBackBuffer[firstY*NewImage->width]; |
embeddedartists | 10:651861441108 | 349 | for (uint32_t y = firstY; y <= lastY; y++) |
embeddedartists | 5:f4de114c31c3 | 350 | { |
embeddedartists | 10:651861441108 | 351 | for (uint32_t x = 0; x < NewImage->width; x++) |
embeddedartists | 5:f4de114c31c3 | 352 | { |
embeddedartists | 5:f4de114c31c3 | 353 | if (*oldImg != *newImg) { |
embeddedartists | 5:f4de114c31c3 | 354 | *dstImg = FADE_COMBINE(*oldImg, *newImg, pass); |
embeddedartists | 5:f4de114c31c3 | 355 | } |
embeddedartists | 5:f4de114c31c3 | 356 | oldImg++; |
embeddedartists | 5:f4de114c31c3 | 357 | newImg++; |
embeddedartists | 5:f4de114c31c3 | 358 | dstImg++; |
embeddedartists | 5:f4de114c31c3 | 359 | } |
embeddedartists | 5:f4de114c31c3 | 360 | } |
embeddedartists | 5:f4de114c31c3 | 361 | // Show the updated image |
embeddedartists | 5:f4de114c31c3 | 362 | ss->rend->setFramebuffer(ss->rendHnd, ss->ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 363 | |
embeddedartists | 5:f4de114c31c3 | 364 | // Sleep and do over again |
embeddedartists | 5:f4de114c31c3 | 365 | wait_ms(Fade_DelayMs); |
embeddedartists | 5:f4de114c31c3 | 366 | } |
embeddedartists | 5:f4de114c31c3 | 367 | |
embeddedartists | 5:f4de114c31c3 | 368 | // show final image |
embeddedartists | 5:f4de114c31c3 | 369 | ss->rend->setFramebuffer(ss->rendHnd, NewImage->pixels); |
embeddedartists | 5:f4de114c31c3 | 370 | } |
embeddedartists | 5:f4de114c31c3 | 371 | break; |
embeddedartists | 5:f4de114c31c3 | 372 | |
embeddedartists | 5:f4de114c31c3 | 373 | case Unknown: |
embeddedartists | 5:f4de114c31c3 | 374 | default: |
embeddedartists | 5:f4de114c31c3 | 375 | result = RuntimeError; |
embeddedartists | 5:f4de114c31c3 | 376 | } |
embeddedartists | 5:f4de114c31c3 | 377 | } while(0); |
embeddedartists | 5:f4de114c31c3 | 378 | |
embeddedartists | 5:f4de114c31c3 | 379 | return result; |
embeddedartists | 5:f4de114c31c3 | 380 | } |
embeddedartists | 5:f4de114c31c3 | 381 | |
embeddedartists | 5:f4de114c31c3 | 382 | SlideShow::SlideShowError SlideShow::loadFile(const char* path, uint8_t** pData, uint32_t* pSize) |
embeddedartists | 5:f4de114c31c3 | 383 | { |
embeddedartists | 5:f4de114c31c3 | 384 | FILE* f = NULL; |
embeddedartists | 5:f4de114c31c3 | 385 | uint32_t pos, size, num; |
embeddedartists | 5:f4de114c31c3 | 386 | SlideShowError result = Ok; |
embeddedartists | 5:f4de114c31c3 | 387 | |
embeddedartists | 5:f4de114c31c3 | 388 | *pData = NULL; |
embeddedartists | 5:f4de114c31c3 | 389 | *pSize = 0; |
embeddedartists | 5:f4de114c31c3 | 390 | |
embeddedartists | 5:f4de114c31c3 | 391 | if (fileMutex != NULL) { |
embeddedartists | 5:f4de114c31c3 | 392 | fileMutex->lock(); |
embeddedartists | 5:f4de114c31c3 | 393 | } |
embeddedartists | 5:f4de114c31c3 | 394 | do |
embeddedartists | 5:f4de114c31c3 | 395 | { |
embeddedartists | 5:f4de114c31c3 | 396 | f = fopen(path, "r"); |
embeddedartists | 5:f4de114c31c3 | 397 | if (f == NULL) { |
embeddedartists | 5:f4de114c31c3 | 398 | printf("Failed to open file %s for reading\n", path); |
embeddedartists | 5:f4de114c31c3 | 399 | result = FileError; |
embeddedartists | 5:f4de114c31c3 | 400 | break; |
embeddedartists | 5:f4de114c31c3 | 401 | } |
embeddedartists | 5:f4de114c31c3 | 402 | |
embeddedartists | 5:f4de114c31c3 | 403 | // Determine file size |
embeddedartists | 5:f4de114c31c3 | 404 | pos = ftell(f); |
embeddedartists | 5:f4de114c31c3 | 405 | fseek(f, 0, SEEK_END); |
embeddedartists | 5:f4de114c31c3 | 406 | size = ftell(f); |
embeddedartists | 5:f4de114c31c3 | 407 | fseek(f, pos, SEEK_SET); |
embeddedartists | 5:f4de114c31c3 | 408 | |
embeddedartists | 5:f4de114c31c3 | 409 | // Allocate memory to read into |
embeddedartists | 5:f4de114c31c3 | 410 | *pData = (unsigned char*)malloc(size); |
embeddedartists | 5:f4de114c31c3 | 411 | if (*pData == NULL) { |
embeddedartists | 10:651861441108 | 412 | printf("Failed to allocate %lu bytes to load %s into\n", size, path); |
embeddedartists | 5:f4de114c31c3 | 413 | result = OutOfMemory; |
embeddedartists | 5:f4de114c31c3 | 414 | break; |
embeddedartists | 5:f4de114c31c3 | 415 | } |
embeddedartists | 5:f4de114c31c3 | 416 | |
embeddedartists | 5:f4de114c31c3 | 417 | // Read entire file |
embeddedartists | 5:f4de114c31c3 | 418 | *pSize = size; |
embeddedartists | 5:f4de114c31c3 | 419 | pos = 0; |
embeddedartists | 5:f4de114c31c3 | 420 | do { |
embeddedartists | 5:f4de114c31c3 | 421 | num = fread(*pData + pos, 1, size, f); |
embeddedartists | 5:f4de114c31c3 | 422 | if (num > 0) { |
embeddedartists | 5:f4de114c31c3 | 423 | size -= num; |
embeddedartists | 5:f4de114c31c3 | 424 | pos += num; |
embeddedartists | 5:f4de114c31c3 | 425 | } |
embeddedartists | 5:f4de114c31c3 | 426 | } while ((num > 0) && (size > 0)); |
embeddedartists | 5:f4de114c31c3 | 427 | |
embeddedartists | 5:f4de114c31c3 | 428 | if (size != 0) { |
embeddedartists | 10:651861441108 | 429 | printf("Failed to read entire %s, got %lu of %lu\n", path, pos, *pSize); |
embeddedartists | 5:f4de114c31c3 | 430 | result = FileError; |
embeddedartists | 5:f4de114c31c3 | 431 | break; |
embeddedartists | 5:f4de114c31c3 | 432 | } |
embeddedartists | 5:f4de114c31c3 | 433 | |
embeddedartists | 5:f4de114c31c3 | 434 | // All OK |
embeddedartists | 5:f4de114c31c3 | 435 | |
embeddedartists | 5:f4de114c31c3 | 436 | } while(0); |
embeddedartists | 5:f4de114c31c3 | 437 | |
embeddedartists | 5:f4de114c31c3 | 438 | if (f != NULL) { |
embeddedartists | 5:f4de114c31c3 | 439 | fclose(f); |
embeddedartists | 5:f4de114c31c3 | 440 | } |
embeddedartists | 5:f4de114c31c3 | 441 | if (result != Ok) { |
embeddedartists | 5:f4de114c31c3 | 442 | if (*pData != NULL) { |
embeddedartists | 5:f4de114c31c3 | 443 | free(*pData); |
embeddedartists | 5:f4de114c31c3 | 444 | *pData = NULL; |
embeddedartists | 5:f4de114c31c3 | 445 | *pSize = 0; |
embeddedartists | 5:f4de114c31c3 | 446 | } |
embeddedartists | 5:f4de114c31c3 | 447 | } |
embeddedartists | 5:f4de114c31c3 | 448 | |
embeddedartists | 5:f4de114c31c3 | 449 | if (fileMutex != NULL) { |
embeddedartists | 5:f4de114c31c3 | 450 | fileMutex->unlock(); |
embeddedartists | 5:f4de114c31c3 | 451 | } |
embeddedartists | 5:f4de114c31c3 | 452 | |
embeddedartists | 5:f4de114c31c3 | 453 | return result; |
embeddedartists | 5:f4de114c31c3 | 454 | } |
embeddedartists | 5:f4de114c31c3 | 455 | |
embeddedartists | 5:f4de114c31c3 | 456 | |
embeddedartists | 5:f4de114c31c3 | 457 | // pBuf in, pOffset in/out, pLine out |
embeddedartists | 5:f4de114c31c3 | 458 | // returns 0 as long as a token is found |
embeddedartists | 5:f4de114c31c3 | 459 | int SlideShow::getNextLine(char* pBuf, int* pOffset, char** ppLine) |
embeddedartists | 5:f4de114c31c3 | 460 | { |
embeddedartists | 5:f4de114c31c3 | 461 | int pos = *pOffset; |
embeddedartists | 5:f4de114c31c3 | 462 | int result = -1; |
embeddedartists | 5:f4de114c31c3 | 463 | |
embeddedartists | 5:f4de114c31c3 | 464 | // trim whitespace from start of line |
embeddedartists | 5:f4de114c31c3 | 465 | while ((pBuf[pos] == ' ') || (pBuf[pos] == '\t')) |
embeddedartists | 5:f4de114c31c3 | 466 | { |
embeddedartists | 5:f4de114c31c3 | 467 | pos++; |
embeddedartists | 5:f4de114c31c3 | 468 | } |
embeddedartists | 5:f4de114c31c3 | 469 | *ppLine = &(pBuf[pos]); |
embeddedartists | 5:f4de114c31c3 | 470 | |
embeddedartists | 5:f4de114c31c3 | 471 | while (pBuf[pos] != '\0') |
embeddedartists | 5:f4de114c31c3 | 472 | { |
embeddedartists | 5:f4de114c31c3 | 473 | if ((pBuf[pos] == '\r') || (pBuf[pos] == '\n')) |
embeddedartists | 5:f4de114c31c3 | 474 | { |
embeddedartists | 5:f4de114c31c3 | 475 | // found the next end of line |
embeddedartists | 5:f4de114c31c3 | 476 | pBuf[pos++] = '\0'; |
embeddedartists | 5:f4de114c31c3 | 477 | result = 0; |
embeddedartists | 5:f4de114c31c3 | 478 | |
embeddedartists | 5:f4de114c31c3 | 479 | // move past all end-of-line characters |
embeddedartists | 5:f4de114c31c3 | 480 | while ((pBuf[pos] == '\r') || (pBuf[pos] == '\n')) |
embeddedartists | 5:f4de114c31c3 | 481 | { |
embeddedartists | 5:f4de114c31c3 | 482 | pos++; |
embeddedartists | 5:f4de114c31c3 | 483 | } |
embeddedartists | 5:f4de114c31c3 | 484 | break; |
embeddedartists | 5:f4de114c31c3 | 485 | } |
embeddedartists | 5:f4de114c31c3 | 486 | pos++; |
embeddedartists | 5:f4de114c31c3 | 487 | } |
embeddedartists | 5:f4de114c31c3 | 488 | |
embeddedartists | 5:f4de114c31c3 | 489 | *pOffset = pos; |
embeddedartists | 5:f4de114c31c3 | 490 | return result; |
embeddedartists | 5:f4de114c31c3 | 491 | } |
embeddedartists | 5:f4de114c31c3 | 492 | |
embeddedartists | 5:f4de114c31c3 | 493 | // pLine in, ppPart1 out, ppPart2 out, ppPart3 out |
embeddedartists | 5:f4de114c31c3 | 494 | // returns number of found parts |
embeddedartists | 5:f4de114c31c3 | 495 | int SlideShow::splitLine(char* pLine, char** ppPart1, char** ppPart2, char** ppPart3) |
embeddedartists | 5:f4de114c31c3 | 496 | { |
embeddedartists | 5:f4de114c31c3 | 497 | int pos = 0; |
embeddedartists | 5:f4de114c31c3 | 498 | int found = 0; |
embeddedartists | 5:f4de114c31c3 | 499 | |
embeddedartists | 5:f4de114c31c3 | 500 | *ppPart1 = NULL; |
embeddedartists | 5:f4de114c31c3 | 501 | *ppPart2 = NULL; |
embeddedartists | 5:f4de114c31c3 | 502 | *ppPart3 = NULL; |
embeddedartists | 5:f4de114c31c3 | 503 | |
embeddedartists | 5:f4de114c31c3 | 504 | if (*pLine != '\0') |
embeddedartists | 5:f4de114c31c3 | 505 | { |
embeddedartists | 5:f4de114c31c3 | 506 | *ppPart1 = &(pLine[0]); |
embeddedartists | 5:f4de114c31c3 | 507 | found++; |
embeddedartists | 5:f4de114c31c3 | 508 | |
embeddedartists | 5:f4de114c31c3 | 509 | while (pLine[pos] != '\0') |
embeddedartists | 5:f4de114c31c3 | 510 | { |
embeddedartists | 5:f4de114c31c3 | 511 | if (pLine[pos] == ' ') |
embeddedartists | 5:f4de114c31c3 | 512 | { |
embeddedartists | 5:f4de114c31c3 | 513 | // found the next token separator |
embeddedartists | 5:f4de114c31c3 | 514 | pLine[pos++] = '\0'; |
embeddedartists | 5:f4de114c31c3 | 515 | found++; |
embeddedartists | 5:f4de114c31c3 | 516 | |
embeddedartists | 5:f4de114c31c3 | 517 | // move past all token separator characters |
embeddedartists | 5:f4de114c31c3 | 518 | while (pLine[pos] == ' ') |
embeddedartists | 5:f4de114c31c3 | 519 | { |
embeddedartists | 5:f4de114c31c3 | 520 | pos++; |
embeddedartists | 5:f4de114c31c3 | 521 | } |
embeddedartists | 5:f4de114c31c3 | 522 | |
embeddedartists | 5:f4de114c31c3 | 523 | // start looking for end of next token |
embeddedartists | 5:f4de114c31c3 | 524 | if (found == 2) |
embeddedartists | 5:f4de114c31c3 | 525 | { |
embeddedartists | 5:f4de114c31c3 | 526 | *ppPart2 = &(pLine[pos]); |
embeddedartists | 5:f4de114c31c3 | 527 | } |
embeddedartists | 5:f4de114c31c3 | 528 | else if (found == 3) |
embeddedartists | 5:f4de114c31c3 | 529 | { |
embeddedartists | 5:f4de114c31c3 | 530 | *ppPart3 = &(pLine[pos]); |
embeddedartists | 5:f4de114c31c3 | 531 | } |
embeddedartists | 5:f4de114c31c3 | 532 | } |
embeddedartists | 5:f4de114c31c3 | 533 | pos++; |
embeddedartists | 5:f4de114c31c3 | 534 | } |
embeddedartists | 5:f4de114c31c3 | 535 | } |
embeddedartists | 5:f4de114c31c3 | 536 | |
embeddedartists | 5:f4de114c31c3 | 537 | return found; |
embeddedartists | 5:f4de114c31c3 | 538 | } |
embeddedartists | 5:f4de114c31c3 | 539 | |
embeddedartists | 5:f4de114c31c3 | 540 | // returns index of pLabel or -1 if it doesn't exist |
embeddedartists | 5:f4de114c31c3 | 541 | int SlideShow::findLabel(LabelInfo* pLabels, int numLabels, const char* pLabel) |
embeddedartists | 5:f4de114c31c3 | 542 | { |
embeddedartists | 5:f4de114c31c3 | 543 | int i; |
embeddedartists | 5:f4de114c31c3 | 544 | for (i = 0; i < numLabels; i++) |
embeddedartists | 5:f4de114c31c3 | 545 | { |
embeddedartists | 5:f4de114c31c3 | 546 | if (strcmp(pLabels[i].pLabel, pLabel) == 0) |
embeddedartists | 5:f4de114c31c3 | 547 | { |
embeddedartists | 5:f4de114c31c3 | 548 | return pLabels[i].index; |
embeddedartists | 5:f4de114c31c3 | 549 | } |
embeddedartists | 5:f4de114c31c3 | 550 | } |
embeddedartists | 5:f4de114c31c3 | 551 | return -1; |
embeddedartists | 5:f4de114c31c3 | 552 | } |
embeddedartists | 5:f4de114c31c3 | 553 | |
embeddedartists | 5:f4de114c31c3 | 554 | void SlideShow::freeSequence(void) |
embeddedartists | 5:f4de114c31c3 | 555 | { |
embeddedartists | 5:f4de114c31c3 | 556 | if (allocatedSequenceItems > 0) { |
embeddedartists | 5:f4de114c31c3 | 557 | for (int i = 0; i < usedSequenceItems; i++) { |
embeddedartists | 5:f4de114c31c3 | 558 | delete Sequence[i]; |
embeddedartists | 5:f4de114c31c3 | 559 | } |
embeddedartists | 5:f4de114c31c3 | 560 | free(Sequence); |
embeddedartists | 5:f4de114c31c3 | 561 | Sequence = NULL; |
embeddedartists | 5:f4de114c31c3 | 562 | allocatedSequenceItems = 0; |
embeddedartists | 5:f4de114c31c3 | 563 | usedSequenceItems = 0; |
embeddedartists | 5:f4de114c31c3 | 564 | } |
embeddedartists | 5:f4de114c31c3 | 565 | } |
embeddedartists | 5:f4de114c31c3 | 566 | |
embeddedartists | 5:f4de114c31c3 | 567 | SlideShow::SlideShowError SlideShow::expandSequence() |
embeddedartists | 5:f4de114c31c3 | 568 | { |
embeddedartists | 5:f4de114c31c3 | 569 | int newSize = allocatedSequenceItems + 20; |
embeddedartists | 5:f4de114c31c3 | 570 | Command** newPtr = (Command**)realloc(Sequence, newSize * sizeof(Command*)); |
embeddedartists | 5:f4de114c31c3 | 571 | if (newPtr != NULL) { |
embeddedartists | 5:f4de114c31c3 | 572 | Sequence = newPtr; |
embeddedartists | 5:f4de114c31c3 | 573 | allocatedSequenceItems = newSize; |
embeddedartists | 5:f4de114c31c3 | 574 | return Ok; |
embeddedartists | 5:f4de114c31c3 | 575 | } else { |
embeddedartists | 5:f4de114c31c3 | 576 | return OutOfMemory; |
embeddedartists | 5:f4de114c31c3 | 577 | } |
embeddedartists | 5:f4de114c31c3 | 578 | } |
embeddedartists | 5:f4de114c31c3 | 579 | |
embeddedartists | 5:f4de114c31c3 | 580 | SlideShow::SlideShowError SlideShow::parseScript(char* pBuf) |
embeddedartists | 5:f4de114c31c3 | 581 | { |
embeddedartists | 5:f4de114c31c3 | 582 | char* pLine = NULL; |
embeddedartists | 5:f4de114c31c3 | 583 | int offset = 0; |
embeddedartists | 5:f4de114c31c3 | 584 | LabelInfo Labels[10] = {0}; |
embeddedartists | 5:f4de114c31c3 | 585 | int numLabels = 0; |
embeddedartists | 5:f4de114c31c3 | 586 | LabelInfo UnresolvedGotos[10] = {0}; |
embeddedartists | 5:f4de114c31c3 | 587 | int numUnresolvedGotos = 0; |
embeddedartists | 5:f4de114c31c3 | 588 | int i; |
embeddedartists | 5:f4de114c31c3 | 589 | SlideShowError result; |
embeddedartists | 5:f4de114c31c3 | 590 | |
embeddedartists | 5:f4de114c31c3 | 591 | // cleanup old sequences |
embeddedartists | 5:f4de114c31c3 | 592 | freeSequence(); |
embeddedartists | 5:f4de114c31c3 | 593 | |
embeddedartists | 5:f4de114c31c3 | 594 | // prepare the new one |
embeddedartists | 5:f4de114c31c3 | 595 | result = expandSequence(); |
embeddedartists | 5:f4de114c31c3 | 596 | if (result != Ok) { |
embeddedartists | 5:f4de114c31c3 | 597 | return result; |
embeddedartists | 5:f4de114c31c3 | 598 | } |
embeddedartists | 5:f4de114c31c3 | 599 | |
embeddedartists | 5:f4de114c31c3 | 600 | // start parsing the new sequence |
embeddedartists | 5:f4de114c31c3 | 601 | while (getNextLine(pBuf, &offset, &pLine) == 0) |
embeddedartists | 5:f4de114c31c3 | 602 | { |
embeddedartists | 5:f4de114c31c3 | 603 | if (*pLine == '#') |
embeddedartists | 5:f4de114c31c3 | 604 | { |
embeddedartists | 5:f4de114c31c3 | 605 | // found a comment line |
embeddedartists | 5:f4de114c31c3 | 606 | } |
embeddedartists | 5:f4de114c31c3 | 607 | else |
embeddedartists | 5:f4de114c31c3 | 608 | { |
embeddedartists | 5:f4de114c31c3 | 609 | char* pCommand; |
embeddedartists | 5:f4de114c31c3 | 610 | char* pArg1; |
embeddedartists | 5:f4de114c31c3 | 611 | char* pArg2; |
embeddedartists | 5:f4de114c31c3 | 612 | int num = splitLine(pLine, &pCommand, &pArg1, &pArg2); |
embeddedartists | 5:f4de114c31c3 | 613 | |
embeddedartists | 5:f4de114c31c3 | 614 | if ((num >= 1) && (num <= 3) && (strcmp(pCommand, "clear") == 0)) |
embeddedartists | 5:f4de114c31c3 | 615 | { |
embeddedartists | 5:f4de114c31c3 | 616 | if (num == 1) { |
embeddedartists | 5:f4de114c31c3 | 617 | Sequence[usedSequenceItems] = new Command(Command::Clear, 0xff, new Transition("none")); |
embeddedartists | 5:f4de114c31c3 | 618 | } else if (num == 2) { |
embeddedartists | 5:f4de114c31c3 | 619 | Sequence[usedSequenceItems] = new Command(Command::Clear, strtol(pArg1, NULL, 16), new Transition("none")); |
embeddedartists | 5:f4de114c31c3 | 620 | } else { |
embeddedartists | 5:f4de114c31c3 | 621 | Transition* t = new Transition(pArg2); |
embeddedartists | 5:f4de114c31c3 | 622 | if (t->type() == Transition::Unknown) { |
embeddedartists | 5:f4de114c31c3 | 623 | printf("Found invalid transition '%s'. Aborting...\n", pArg2); |
embeddedartists | 5:f4de114c31c3 | 624 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 625 | break; |
embeddedartists | 5:f4de114c31c3 | 626 | } |
embeddedartists | 5:f4de114c31c3 | 627 | Sequence[usedSequenceItems] = new Command(Command::Clear, strtol(pArg1, NULL, 16), t); |
embeddedartists | 5:f4de114c31c3 | 628 | } |
embeddedartists | 5:f4de114c31c3 | 629 | } |
embeddedartists | 5:f4de114c31c3 | 630 | else if ((num == 3) && (strcmp(pCommand, "show") == 0)) |
embeddedartists | 5:f4de114c31c3 | 631 | { |
embeddedartists | 5:f4de114c31c3 | 632 | Transition* t = new Transition(pArg2); |
embeddedartists | 5:f4de114c31c3 | 633 | if (t->type() == Transition::Unknown) { |
embeddedartists | 5:f4de114c31c3 | 634 | printf("Found invalid transition '%s'. Aborting...\n", pArg2); |
embeddedartists | 5:f4de114c31c3 | 635 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 636 | break; |
embeddedartists | 5:f4de114c31c3 | 637 | } |
embeddedartists | 5:f4de114c31c3 | 638 | Sequence[usedSequenceItems] = new Command(Command::Show, atoi(pArg1), t); |
embeddedartists | 5:f4de114c31c3 | 639 | } |
embeddedartists | 5:f4de114c31c3 | 640 | else if ((num == 2) && (strcmp(pCommand, "wait") == 0)) |
embeddedartists | 5:f4de114c31c3 | 641 | { |
embeddedartists | 5:f4de114c31c3 | 642 | Sequence[usedSequenceItems] = new Command(Command::Wait, atoi(pArg1)); |
embeddedartists | 5:f4de114c31c3 | 643 | } |
embeddedartists | 5:f4de114c31c3 | 644 | else if ((num == 2) && (strcmp(pCommand, "callout") == 0)) |
embeddedartists | 5:f4de114c31c3 | 645 | { |
embeddedartists | 5:f4de114c31c3 | 646 | Sequence[usedSequenceItems] = new Command(Command::Callout, atoi(pArg1)); |
embeddedartists | 5:f4de114c31c3 | 647 | } |
embeddedartists | 5:f4de114c31c3 | 648 | else if ((num == 2) && (strcmp(pCommand, "label") == 0)) |
embeddedartists | 5:f4de114c31c3 | 649 | { |
embeddedartists | 5:f4de114c31c3 | 650 | int index = findLabel(&(Labels[0]), numLabels, pArg1); |
embeddedartists | 5:f4de114c31c3 | 651 | if (index == -1) |
embeddedartists | 5:f4de114c31c3 | 652 | { |
embeddedartists | 5:f4de114c31c3 | 653 | // found a new label |
embeddedartists | 5:f4de114c31c3 | 654 | Labels[numLabels].index = usedSequenceItems; |
embeddedartists | 5:f4de114c31c3 | 655 | Labels[numLabels].pLabel = pArg1; |
embeddedartists | 5:f4de114c31c3 | 656 | numLabels++; |
embeddedartists | 5:f4de114c31c3 | 657 | |
embeddedartists | 5:f4de114c31c3 | 658 | // A label doesn't occupy a slot in the sequence |
embeddedartists | 5:f4de114c31c3 | 659 | usedSequenceItems--; |
embeddedartists | 5:f4de114c31c3 | 660 | } |
embeddedartists | 5:f4de114c31c3 | 661 | else |
embeddedartists | 5:f4de114c31c3 | 662 | { |
embeddedartists | 5:f4de114c31c3 | 663 | // label already declared |
embeddedartists | 5:f4de114c31c3 | 664 | printf("Found a second declaration of label '%s'. Aborting...\n", pArg1); |
embeddedartists | 5:f4de114c31c3 | 665 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 666 | break; |
embeddedartists | 5:f4de114c31c3 | 667 | } |
embeddedartists | 5:f4de114c31c3 | 668 | } |
embeddedartists | 5:f4de114c31c3 | 669 | else if ((num == 2) && (strcmp(pCommand, "goto") == 0)) |
embeddedartists | 5:f4de114c31c3 | 670 | { |
embeddedartists | 5:f4de114c31c3 | 671 | int index = findLabel(&(Labels[0]), numLabels, pArg1); |
embeddedartists | 5:f4de114c31c3 | 672 | if (index == -1) |
embeddedartists | 5:f4de114c31c3 | 673 | { |
embeddedartists | 5:f4de114c31c3 | 674 | // couldn't find the label we are looking for so we |
embeddedartists | 5:f4de114c31c3 | 675 | // wait for now |
embeddedartists | 5:f4de114c31c3 | 676 | UnresolvedGotos[numUnresolvedGotos].index = usedSequenceItems; |
embeddedartists | 5:f4de114c31c3 | 677 | UnresolvedGotos[numUnresolvedGotos].pLabel = pArg1; |
embeddedartists | 5:f4de114c31c3 | 678 | numUnresolvedGotos++; |
embeddedartists | 5:f4de114c31c3 | 679 | } |
embeddedartists | 5:f4de114c31c3 | 680 | |
embeddedartists | 5:f4de114c31c3 | 681 | // Create the command |
embeddedartists | 5:f4de114c31c3 | 682 | Sequence[usedSequenceItems] = new Command(Command::Goto, index); |
embeddedartists | 5:f4de114c31c3 | 683 | } |
embeddedartists | 5:f4de114c31c3 | 684 | else if ((num == 3) && (strcmp(pCommand, "load") == 0)) |
embeddedartists | 5:f4de114c31c3 | 685 | { |
embeddedartists | 5:f4de114c31c3 | 686 | Sequence[usedSequenceItems] = new Command(Command::LoadImage, atoi(pArg2), NULL, pArg1, pathPrefix); |
embeddedartists | 5:f4de114c31c3 | 687 | if (Sequence[usedSequenceItems]->info() >= MaxNumPreparedImages) { |
embeddedartists | 5:f4de114c31c3 | 688 | printf("Attempting to load into invalid slot %d, have 0..%d. Aborting...\n", Sequence[usedSequenceItems]->info(), MaxNumPreparedImages); |
embeddedartists | 5:f4de114c31c3 | 689 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 690 | break; |
embeddedartists | 5:f4de114c31c3 | 691 | } |
embeddedartists | 5:f4de114c31c3 | 692 | } |
embeddedartists | 5:f4de114c31c3 | 693 | else |
embeddedartists | 5:f4de114c31c3 | 694 | { |
embeddedartists | 5:f4de114c31c3 | 695 | // unknown command |
embeddedartists | 5:f4de114c31c3 | 696 | printf("Found unknown command '%s'. Aborting...\n", pCommand); |
embeddedartists | 5:f4de114c31c3 | 697 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 698 | break; |
embeddedartists | 5:f4de114c31c3 | 699 | } |
embeddedartists | 5:f4de114c31c3 | 700 | |
embeddedartists | 5:f4de114c31c3 | 701 | // start looking for next part in the sequence |
embeddedartists | 5:f4de114c31c3 | 702 | usedSequenceItems++; |
embeddedartists | 5:f4de114c31c3 | 703 | |
embeddedartists | 5:f4de114c31c3 | 704 | // assure we don't pass memory limit |
embeddedartists | 5:f4de114c31c3 | 705 | if (usedSequenceItems >= allocatedSequenceItems) |
embeddedartists | 5:f4de114c31c3 | 706 | { |
embeddedartists | 5:f4de114c31c3 | 707 | result = expandSequence(); |
embeddedartists | 5:f4de114c31c3 | 708 | if (result != Ok) { |
embeddedartists | 5:f4de114c31c3 | 709 | printf("Failed to allocate memory to hold sequence. Aborting...\n"); |
embeddedartists | 5:f4de114c31c3 | 710 | break; |
embeddedartists | 5:f4de114c31c3 | 711 | } |
embeddedartists | 5:f4de114c31c3 | 712 | } |
embeddedartists | 5:f4de114c31c3 | 713 | } |
embeddedartists | 5:f4de114c31c3 | 714 | } |
embeddedartists | 5:f4de114c31c3 | 715 | |
embeddedartists | 5:f4de114c31c3 | 716 | // Resolve any unresolved gotos. Happens when the label is on |
embeddedartists | 5:f4de114c31c3 | 717 | // a line with a higher line number than the goto statement. |
embeddedartists | 5:f4de114c31c3 | 718 | for (i = 0; i < numUnresolvedGotos && result==Ok; i++) |
embeddedartists | 5:f4de114c31c3 | 719 | { |
embeddedartists | 5:f4de114c31c3 | 720 | int index = findLabel(&(Labels[0]), numLabels, UnresolvedGotos[i].pLabel); |
embeddedartists | 5:f4de114c31c3 | 721 | if (index == -1) |
embeddedartists | 5:f4de114c31c3 | 722 | { |
embeddedartists | 5:f4de114c31c3 | 723 | printf("Unable to find label '%s' used in goto statement. Aborting...\n", UnresolvedGotos[i].pLabel); |
embeddedartists | 5:f4de114c31c3 | 724 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 725 | } |
embeddedartists | 5:f4de114c31c3 | 726 | else |
embeddedartists | 5:f4de114c31c3 | 727 | { |
embeddedartists | 5:f4de114c31c3 | 728 | // Update the goto element with the correct index of the label |
embeddedartists | 5:f4de114c31c3 | 729 | Sequence[UnresolvedGotos[i].index]->updateInfo(index); |
embeddedartists | 5:f4de114c31c3 | 730 | } |
embeddedartists | 5:f4de114c31c3 | 731 | } |
embeddedartists | 5:f4de114c31c3 | 732 | |
embeddedartists | 5:f4de114c31c3 | 733 | if (result==Ok && usedSequenceItems == 0) |
embeddedartists | 5:f4de114c31c3 | 734 | { |
embeddedartists | 5:f4de114c31c3 | 735 | printf("Found no sequence. Aborting...\n"); |
embeddedartists | 5:f4de114c31c3 | 736 | result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 737 | } |
embeddedartists | 5:f4de114c31c3 | 738 | return result; |
embeddedartists | 5:f4de114c31c3 | 739 | } |
embeddedartists | 5:f4de114c31c3 | 740 | |
embeddedartists | 5:f4de114c31c3 | 741 | SlideShow::SlideShowError SlideShow::loadImage(const char* pFileName, int slot) |
embeddedartists | 5:f4de114c31c3 | 742 | { |
embeddedartists | 5:f4de114c31c3 | 743 | SlideShowError result = Ok; |
embeddedartists | 5:f4de114c31c3 | 744 | |
embeddedartists | 5:f4de114c31c3 | 745 | if (PreparedImages[slot].pointerToFree != NULL) { |
embeddedartists | 5:f4de114c31c3 | 746 | free(PreparedImages[slot].pointerToFree); |
embeddedartists | 5:f4de114c31c3 | 747 | PreparedImages[slot].pointerToFree = NULL; |
embeddedartists | 5:f4de114c31c3 | 748 | } |
embeddedartists | 5:f4de114c31c3 | 749 | |
embeddedartists | 5:f4de114c31c3 | 750 | if (Image::decode(pFileName, Image::RES_16BIT, &(PreparedImages[slot]), fileMutex) != 0) { |
embeddedartists | 5:f4de114c31c3 | 751 | printf("Failed to decode file %s as image\n", pFileName); |
embeddedartists | 5:f4de114c31c3 | 752 | result = FileError; |
embeddedartists | 5:f4de114c31c3 | 753 | } |
embeddedartists | 5:f4de114c31c3 | 754 | |
embeddedartists | 5:f4de114c31c3 | 755 | return result; |
embeddedartists | 5:f4de114c31c3 | 756 | } |
embeddedartists | 5:f4de114c31c3 | 757 | void SlideShow::delay(int lastTime, int millis) |
embeddedartists | 5:f4de114c31c3 | 758 | { |
embeddedartists | 5:f4de114c31c3 | 759 | int timeToWait = (lastTime + millis) - msTicks; |
embeddedartists | 5:f4de114c31c3 | 760 | if (timeToWait > 0) { |
embeddedartists | 5:f4de114c31c3 | 761 | wait_ms(timeToWait); |
embeddedartists | 5:f4de114c31c3 | 762 | } |
embeddedartists | 5:f4de114c31c3 | 763 | } |
embeddedartists | 5:f4de114c31c3 | 764 | |
embeddedartists | 5:f4de114c31c3 | 765 | SlideShow::SlideShowError SlideShow::runScript() |
embeddedartists | 5:f4de114c31c3 | 766 | { |
embeddedartists | 5:f4de114c31c3 | 767 | SlideShowError result = Ok; |
embeddedartists | 5:f4de114c31c3 | 768 | int seqIndex = 0; |
embeddedartists | 5:f4de114c31c3 | 769 | int lastTime = 0; |
embeddedartists | 5:f4de114c31c3 | 770 | |
embeddedartists | 5:f4de114c31c3 | 771 | while ((result == Ok) && (seqIndex < this->usedSequenceItems)) |
embeddedartists | 5:f4de114c31c3 | 772 | { |
embeddedartists | 5:f4de114c31c3 | 773 | result = Sequence[seqIndex]->handle(this, &seqIndex, &lastTime); |
embeddedartists | 5:f4de114c31c3 | 774 | |
embeddedartists | 5:f4de114c31c3 | 775 | if (abortBeforeNextStep) { |
embeddedartists | 5:f4de114c31c3 | 776 | break; |
embeddedartists | 5:f4de114c31c3 | 777 | } |
embeddedartists | 5:f4de114c31c3 | 778 | } |
embeddedartists | 5:f4de114c31c3 | 779 | |
embeddedartists | 5:f4de114c31c3 | 780 | // if (*pAbort) |
embeddedartists | 5:f4de114c31c3 | 781 | // { |
embeddedartists | 5:f4de114c31c3 | 782 | // return SLIDE_USER_ABORT; |
embeddedartists | 5:f4de114c31c3 | 783 | // } |
embeddedartists | 5:f4de114c31c3 | 784 | // else |
embeddedartists | 5:f4de114c31c3 | 785 | // { |
embeddedartists | 5:f4de114c31c3 | 786 | // return SLIDE_SCRIPT_END; |
embeddedartists | 5:f4de114c31c3 | 787 | // } |
embeddedartists | 5:f4de114c31c3 | 788 | return Ok; |
embeddedartists | 5:f4de114c31c3 | 789 | } |
embeddedartists | 5:f4de114c31c3 | 790 | |
embeddedartists | 5:f4de114c31c3 | 791 | |
embeddedartists | 5:f4de114c31c3 | 792 | /****************************************************************************** |
embeddedartists | 5:f4de114c31c3 | 793 | * Public Functions |
embeddedartists | 5:f4de114c31c3 | 794 | *****************************************************************************/ |
embeddedartists | 5:f4de114c31c3 | 795 | |
embeddedartists | 5:f4de114c31c3 | 796 | SlideShow::SlideShow(Renderer* r, /*LcdController::Config* screen,*/ const char* pathPrefix, uint8_t* bkg, int xoff, int yoff, int layer, Mutex* fileMutex) |
embeddedartists | 5:f4de114c31c3 | 797 | { |
embeddedartists | 5:f4de114c31c3 | 798 | Display* disp = DMBoard::instance().display(); |
embeddedartists | 5:f4de114c31c3 | 799 | this->screenWidth = disp->width(); |
embeddedartists | 5:f4de114c31c3 | 800 | this->screenHeight = disp->height(); |
embeddedartists | 5:f4de114c31c3 | 801 | this->screenPixels = this->screenWidth * this->screenHeight; |
embeddedartists | 5:f4de114c31c3 | 802 | this->drawXoff = xoff; |
embeddedartists | 5:f4de114c31c3 | 803 | this->drawYoff = yoff; |
embeddedartists | 5:f4de114c31c3 | 804 | |
embeddedartists | 5:f4de114c31c3 | 805 | // Assume screen->bpp == Bpp_16 |
embeddedartists | 5:f4de114c31c3 | 806 | this->screenBytes = 2 * this->screenPixels; |
embeddedartists | 5:f4de114c31c3 | 807 | |
embeddedartists | 5:f4de114c31c3 | 808 | this->ImageBackBuffer = NULL; |
embeddedartists | 5:f4de114c31c3 | 809 | this->Sequence = NULL; |
embeddedartists | 5:f4de114c31c3 | 810 | this->allocatedSequenceItems = 0; |
embeddedartists | 5:f4de114c31c3 | 811 | this->usedSequenceItems = 0; |
embeddedartists | 5:f4de114c31c3 | 812 | |
embeddedartists | 5:f4de114c31c3 | 813 | this->pathPrefix = pathPrefix; |
embeddedartists | 5:f4de114c31c3 | 814 | |
embeddedartists | 5:f4de114c31c3 | 815 | this->CurrentSlot = NO_SLOT; |
embeddedartists | 5:f4de114c31c3 | 816 | |
embeddedartists | 5:f4de114c31c3 | 817 | memset(PreparedImages, 0, MaxNumPreparedImages * sizeof(Image::ImageData_t)); |
embeddedartists | 5:f4de114c31c3 | 818 | |
embeddedartists | 5:f4de114c31c3 | 819 | this->fileMutex = fileMutex; |
embeddedartists | 5:f4de114c31c3 | 820 | |
embeddedartists | 5:f4de114c31c3 | 821 | this->rend = r; |
embeddedartists | 5:f4de114c31c3 | 822 | this->rendHnd = 0; |
embeddedartists | 5:f4de114c31c3 | 823 | this->layer = layer; |
embeddedartists | 5:f4de114c31c3 | 824 | |
embeddedartists | 5:f4de114c31c3 | 825 | this->callout = NULL; |
embeddedartists | 5:f4de114c31c3 | 826 | |
embeddedartists | 5:f4de114c31c3 | 827 | this->abortBeforeNextStep = false; |
embeddedartists | 5:f4de114c31c3 | 828 | } |
embeddedartists | 5:f4de114c31c3 | 829 | |
embeddedartists | 5:f4de114c31c3 | 830 | SlideShow::~SlideShow() |
embeddedartists | 5:f4de114c31c3 | 831 | { |
embeddedartists | 5:f4de114c31c3 | 832 | if (ImageBackBuffer != NULL) { |
embeddedartists | 5:f4de114c31c3 | 833 | free(ImageBackBuffer); |
embeddedartists | 5:f4de114c31c3 | 834 | ImageBackBuffer = NULL; |
embeddedartists | 5:f4de114c31c3 | 835 | } |
embeddedartists | 5:f4de114c31c3 | 836 | for (int i = 0; i < MaxNumPreparedImages; i++) { |
embeddedartists | 5:f4de114c31c3 | 837 | if (PreparedImages[i].pointerToFree != NULL) { |
embeddedartists | 5:f4de114c31c3 | 838 | free(PreparedImages[i].pointerToFree); |
embeddedartists | 5:f4de114c31c3 | 839 | } |
embeddedartists | 5:f4de114c31c3 | 840 | } |
embeddedartists | 5:f4de114c31c3 | 841 | |
embeddedartists | 5:f4de114c31c3 | 842 | freeSequence(); |
embeddedartists | 5:f4de114c31c3 | 843 | |
embeddedartists | 5:f4de114c31c3 | 844 | if ((rendHnd != 0) && (rend != NULL)) { |
embeddedartists | 5:f4de114c31c3 | 845 | rend->unregisterUser(rendHnd); |
embeddedartists | 5:f4de114c31c3 | 846 | } |
embeddedartists | 5:f4de114c31c3 | 847 | |
embeddedartists | 5:f4de114c31c3 | 848 | //memset(PreparedImages, 0, MaxNumPreparedImages * sizeof(Image::ImageData_t)); |
embeddedartists | 5:f4de114c31c3 | 849 | } |
embeddedartists | 5:f4de114c31c3 | 850 | |
embeddedartists | 5:f4de114c31c3 | 851 | SlideShow::SlideShowError SlideShow::prepare(const char* scriptFile) |
embeddedartists | 5:f4de114c31c3 | 852 | { |
embeddedartists | 5:f4de114c31c3 | 853 | uint8_t* pBuf = NULL; |
embeddedartists | 5:f4de114c31c3 | 854 | uint32_t size = 0; |
embeddedartists | 5:f4de114c31c3 | 855 | SlideShowError result = InvalidScript; |
embeddedartists | 5:f4de114c31c3 | 856 | |
embeddedartists | 5:f4de114c31c3 | 857 | do |
embeddedartists | 5:f4de114c31c3 | 858 | { |
embeddedartists | 5:f4de114c31c3 | 859 | if (ImageBackBuffer == NULL) { |
embeddedartists | 5:f4de114c31c3 | 860 | // Back buffer will be able to hold three images |
embeddedartists | 5:f4de114c31c3 | 861 | ImageBackBuffer = (image_t)malloc(screenBytes * 3); |
embeddedartists | 5:f4de114c31c3 | 862 | if (ImageBackBuffer == NULL) { |
embeddedartists | 5:f4de114c31c3 | 863 | result = OutOfMemory; |
embeddedartists | 5:f4de114c31c3 | 864 | break; |
embeddedartists | 5:f4de114c31c3 | 865 | } |
embeddedartists | 5:f4de114c31c3 | 866 | } |
embeddedartists | 5:f4de114c31c3 | 867 | |
embeddedartists | 5:f4de114c31c3 | 868 | // Read the contents of the file into a newly allocated buffer |
embeddedartists | 5:f4de114c31c3 | 869 | result = loadFile(scriptFile, &pBuf, &size); |
embeddedartists | 5:f4de114c31c3 | 870 | if (result != Ok) |
embeddedartists | 5:f4de114c31c3 | 871 | { |
embeddedartists | 5:f4de114c31c3 | 872 | break; |
embeddedartists | 5:f4de114c31c3 | 873 | } |
embeddedartists | 5:f4de114c31c3 | 874 | |
embeddedartists | 5:f4de114c31c3 | 875 | //printf("Parsing buffer...\n"); |
embeddedartists | 5:f4de114c31c3 | 876 | |
embeddedartists | 5:f4de114c31c3 | 877 | // Parse buffer to create the script sequence |
embeddedartists | 5:f4de114c31c3 | 878 | result = parseScript((char*)pBuf); |
embeddedartists | 5:f4de114c31c3 | 879 | |
embeddedartists | 5:f4de114c31c3 | 880 | } while (0); |
embeddedartists | 5:f4de114c31c3 | 881 | |
embeddedartists | 5:f4de114c31c3 | 882 | // Release resources |
embeddedartists | 5:f4de114c31c3 | 883 | if (pBuf != NULL) |
embeddedartists | 5:f4de114c31c3 | 884 | { |
embeddedartists | 5:f4de114c31c3 | 885 | free(pBuf); |
embeddedartists | 5:f4de114c31c3 | 886 | pBuf = NULL; |
embeddedartists | 5:f4de114c31c3 | 887 | } |
embeddedartists | 5:f4de114c31c3 | 888 | if (result != Ok) { |
embeddedartists | 5:f4de114c31c3 | 889 | freeSequence(); |
embeddedartists | 5:f4de114c31c3 | 890 | } |
embeddedartists | 5:f4de114c31c3 | 891 | |
embeddedartists | 5:f4de114c31c3 | 892 | return result; |
embeddedartists | 5:f4de114c31c3 | 893 | } |
embeddedartists | 5:f4de114c31c3 | 894 | |
embeddedartists | 5:f4de114c31c3 | 895 | SlideShow::SlideShowError SlideShow::run() |
embeddedartists | 5:f4de114c31c3 | 896 | { |
embeddedartists | 5:f4de114c31c3 | 897 | //printf("Executing script...\n"); |
embeddedartists | 5:f4de114c31c3 | 898 | this->abortBeforeNextStep = false; |
embeddedartists | 5:f4de114c31c3 | 899 | return runScript(); |
embeddedartists | 5:f4de114c31c3 | 900 | } |
embeddedartists | 5:f4de114c31c3 | 901 | |
embeddedartists | 5:f4de114c31c3 | 902 | void SlideShow::setCalloutHandler(calloutFunc func, int calloutId) |
embeddedartists | 5:f4de114c31c3 | 903 | { |
embeddedartists | 5:f4de114c31c3 | 904 | this->callout = func; |
embeddedartists | 5:f4de114c31c3 | 905 | this->calloutId = calloutId; |
embeddedartists | 5:f4de114c31c3 | 906 | } |
embeddedartists | 5:f4de114c31c3 | 907 | |
embeddedartists | 5:f4de114c31c3 | 908 | void SlideShow::releaseScreen(void) |
embeddedartists | 5:f4de114c31c3 | 909 | { |
embeddedartists | 5:f4de114c31c3 | 910 | if ((rendHnd != 0) && (rend != NULL)) { |
embeddedartists | 5:f4de114c31c3 | 911 | rend->unregisterUser(rendHnd); |
embeddedartists | 5:f4de114c31c3 | 912 | } |
embeddedartists | 5:f4de114c31c3 | 913 | rendHnd = 0; |
embeddedartists | 5:f4de114c31c3 | 914 | } |