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RFC 1 stage: Improve maintainability of the cursoir painting code
- Turned the mouse cursor painting code into a macro for more maintainability - Dropped mouse cursor painting in 8bit mode - Removed log when dropping frames - Free the shared memory segment on close (patch by Edouard Gomez) Originally committed as revision 7304 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Edouard Gomez
Guillaume Poirier
parent
2909f17717
commit
65a1c656d7
@ -188,12 +188,12 @@ x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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#if 0
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GetColorInfo (image, &c_info);
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if ( c_info.alpha_mask == 0xFF000000 && image->green_mask == 0xFF00 ) {
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// byte order is relevant here, not endianness
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// endianness is handled by avcodec, but atm no such thing
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// as having ABGR, instead of ARGB in a word. Since we
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// need this for Solaris/SPARC, but need to do the conversion
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// for every frame we do it outside of this loop, cf. below
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// this matches both ARGB32 and ABGR32
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/* byte order is relevant here, not endianness
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* endianness is handled by avcodec, but atm no such thing
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* as having ABGR, instead of ARGB in a word. Since we
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* need this for Solaris/SPARC, but need to do the conversion
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* for every frame we do it outside of this loop, cf. below
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* this matches both ARGB32 and ABGR32 */
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input_pixfmt = PIX_FMT_ARGB32;
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} else {
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av_log(s1, AV_LOG_ERROR,"image depth %i not supported ... aborting\n", image->bits_per_pixel);
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@ -236,13 +236,13 @@ fail:
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return AVERROR_IO;
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}
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static const uint16_t mousePointerBlack[] =
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static uint16_t mousePointerBlack[] =
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{
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0, 49152, 40960, 36864, 34816, 33792, 33280, 33024, 32896, 32832,
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33728, 37376, 43264, 51456, 1152, 1152, 576, 576, 448, 0
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};
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static const uint16_t mousePointerWhite[] =
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static uint16_t mousePointerWhite[] =
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{
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0, 0, 16384, 24576, 28672, 30720, 31744, 32256, 32512, 32640, 31744,
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27648, 17920, 1536, 768, 768, 384, 384, 0, 0
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@ -266,6 +266,36 @@ getCurrentPointer(AVFormatContext *s1, X11Grab *s, int *x, int *y)
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}
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}
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#define DRAW_CURSOR_TEMPLATE(type_t) \
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do { \
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type_t *cursor; \
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int width_cursor; \
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uint16_t bm_b, bm_w, mask; \
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\
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for (line = 0; line < min(20, (y_off + height) - *y); line++ ) { \
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if (s->mouse_wanted == 1) { \
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bm_b = mousePointerBlack[line]; \
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bm_w = mousePointerWhite[line]; \
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} else { \
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bm_b = mousePointerWhite[line]; \
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bm_w = mousePointerBlack[line]; \
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} \
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mask = ( 0x0001 << 15 ); \
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\
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for (cursor = (type_t*) im_data, width_cursor = 0; \
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((width_cursor + *x) < (width + x_off) && width_cursor < 16); \
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cursor++, width_cursor++) { \
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if ( ( bm_b & mask ) > 0 ) { \
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*cursor &= ((~ image->red_mask) & (~ image->green_mask) & (~image->blue_mask )); \
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} else if ( ( bm_w & mask ) > 0 ) { \
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*cursor |= (image->red_mask | image->green_mask | image->blue_mask ); \
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} \
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mask >>= 1; \
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} \
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im_data += image->bytes_per_line; \
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} \
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} while (0)
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static void
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paintMousePointer(AVFormatContext *s1, X11Grab *s, int *x, int *y, XImage *image)
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{
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@ -283,135 +313,15 @@ paintMousePointer(AVFormatContext *s1, X11Grab *s, int *x, int *y, XImage *image
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im_data += (image->bits_per_pixel / 8 * (*x - x_off)); // shift to right pixel
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switch(image->bits_per_pixel) {
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case 32:
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{
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uint32_t *cursor;
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int width_cursor;
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uint16_t bm_b, bm_w, mask;
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for (line = 0; line < min(20, (y_off + height) - *y); line++ ) {
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if (s->mouse_wanted == 1) {
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bm_b = mousePointerBlack[line];
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bm_w = mousePointerWhite[line];
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} else {
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bm_b = mousePointerWhite[line];
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bm_w = mousePointerBlack[line];
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}
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mask = (0x0001 << 15);
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for (cursor = (uint32_t*) im_data, width_cursor = 0;
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((width_cursor + *x) < (width + x_off) && width_cursor < 16);
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cursor++, width_cursor++) {
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// Boolean pointer_b_bit, pointer_w_bit;
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// pointer_b_bit = ( ( bm_b & mask ) > 0 );
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// pointer_w_bit = ( ( bm_w & mask ) > 0 );
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// printf("%i ", pointer_b_bit, pointer_w_bit );
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if (( bm_b & mask) > 0 ) {
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*cursor &= ( (~image->red_mask)
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& (~image->green_mask)
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& (~image->blue_mask));
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} else if (( bm_w & mask) > 0 ) {
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*cursor |= ( image->red_mask
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| image->green_mask
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| image->blue_mask );
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}
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mask >>= 1;
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}
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// printf("\n");
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im_data += image->bytes_per_line;
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}
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}
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break;
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#if 0
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case 24: // not sure this can occur at all ..........
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av_log(s1, AV_LOG_ERROR, "input image bits_per_pixel %i not implemented with mouse pointer capture ... aborting!\n",
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image->bits_per_pixel);
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av_log(s1, AV_LOG_ERROR, "Please file a bug at http://www.sourceforge.net/projects/xvidcap/\n");
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exit(1);
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case 32:
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DRAW_CURSOR_TEMPLATE(uint32_t);
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break;
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case 16:
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{
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uint16_t *cursor;
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int width;
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uint16_t bm_b, bm_w, mask;
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for (line = 0; line < 16; line++) {
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if (mjob->mouseWanted == 1) {
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bm_b = mousePointerBlack[line];
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bm_w = mousePointerWhite[line];
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} else {
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bm_b = mousePointerWhite[line];
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bm_w = mousePointerBlack[line];
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}
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mask = (0x0001 << 15);
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for (cursor = (uint16_t*) im_data, width = 0;
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((width + *x) < (mjob->area->width + mjob->area->x)&&width < 6);
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cursor++, width++) {
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// Boolean pointer_b_bit, pointer_w_bit;
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// pointer_b_bit = ( ( bm_b & mask ) > 0 );
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// pointer_w_bit = ( ( bm_w & mask ) > 0 );
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// printf("%i ", pointer_b_bit, pointer_w_bit );
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if (( bm_b & mask ) > 0 ) {
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*cursor &= ( (~image->red_mask)
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& (~image->green_mask)
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& (~image->blue_mask));
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} else if (( bm_w & mask ) > 0 ) {
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*cursor |= ( image->red_mask
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| image->green_mask
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| image->blue_mask );
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}
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mask >>= 1;
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}
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// printf("\n");
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im_data += image->bytes_per_line;
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}
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}
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break;
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case 8:
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{
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uint8_t *cursor;
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int width;
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uint16_t bm_b, bm_w, mask;
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for (line = 0; line < 16; line++ ) {
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if (mjob->mouseWanted == 1) {
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bm_b = mousePointerBlack[line];
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bm_w = mousePointerWhite[line];
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} else {
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bm_b = mousePointerWhite[line];
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bm_w = mousePointerBlack[line];
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}
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mask = ( 0x0001 << 15 );
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for (cursor = im_data, width = 0;
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((width + *x) < (mjob->area->width + mjob->area->x)&&width < 6);
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cursor++, width++) {
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// Boolean pointer_b_bit, pointer_w_bit;
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// pointer_b_bit = ( ( bm_b & mask ) > 0 );
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// pointer_w_bit = ( ( bm_w & mask ) > 0 );
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// printf("%i ", pointer_b_bit, pointer_w_bit );
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if ((bm_b & mask) > 0 ) {
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*cursor = 0;
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} else if (( bm_w & mask) > 0 ) {
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*cursor = 1;
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}
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mask >>= 1;
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}
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// printf("\n");
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im_data += image->bytes_per_line;
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}
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}
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DRAW_CURSOR_TEMPLATE(uint16_t);
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break;
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default:
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av_log(s1, AV_LOG_ERROR, "input image bits_per_pixel %i not supported with mouse pointer capture ... aborting!\n",
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image->bits_per_pixel);
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exit(1);
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#endif
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/* XXX: How do we deal with 24bit and 8bit modes ? */
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break;
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}
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}
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}
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@ -478,7 +388,6 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
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delay = s->time_frame * s->frame_rate_base / s->frame_rate - curtime;
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if (delay <= 0) {
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if (delay < int64_t_C(-1000000) * s->frame_rate_base / s->frame_rate) {
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av_log(s1, AV_LOG_DEBUG, "grabbing is %d frames late (dropping)\n", (int) -(delay / 16666));
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s->time_frame += int64_t_C(1000000);
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}
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break;
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@ -510,14 +419,23 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
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paintMousePointer(s1, s, &pointer_x, &pointer_y, image);
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}
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#warning FIXME - avoid memcpy
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memcpy(pkt->data, image->data, s->frame_size);
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/* XXX: avoid memcpy */
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memcpy(pkt->data, image->data, s->frame_size);
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return s->frame_size;
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}
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static int x11grab_read_close(AVFormatContext *s1)
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{
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X11Grab *x11grab = s1->priv_data;
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/* Free shared mem if necessary */
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if (x11grab->use_shm) {
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shmdt(x11grab->shminfo.shmaddr);
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shmctl(x11grab->shminfo.shmid, IPC_RMID, NULL);
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}
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/* Free X11 display */
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XCloseDisplay(x11grab->dpy);
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return 0;
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}
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@ -525,7 +443,7 @@ static int x11grab_read_close(AVFormatContext *s1)
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AVInputFormat x11_grab_device_demuxer =
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{
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"x11grab",
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"X11 frame graber",
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"X11grab",
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sizeof(X11Grab),
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NULL,
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x11grab_read_header,
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