diff options
Diffstat (limited to 'src/blitter')
| -rw-r--r-- | src/blitter/32bpp_anim.cpp | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/src/blitter/32bpp_anim.cpp b/src/blitter/32bpp_anim.cpp index 42fbe3fe9..3390838e0 100644 --- a/src/blitter/32bpp_anim.cpp +++ b/src/blitter/32bpp_anim.cpp @@ -308,11 +308,15 @@ void Blitter_32bppAnim::CopyFromBuffer(void *video, const void *src, int width, assert(video >= _screen.dst_ptr && video <= (uint32 *)_screen.dst_ptr + _screen.width + _screen.height * _screen.pitch); uint32 *dst = (uint32 *)video; uint32 *usrc = (uint32 *)src; - uint8 *anim_line; + uint8 *anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; - anim_line = ((uint32 *)video - (uint32 *)_screen.dst_ptr) + this->anim_buf; + int count = (_use_palette == PAL_DOS) ? PALETTE_ANIM_SIZE_DOS : PALETTE_ANIM_SIZE_WIN; for (; height > 0; height--) { + /* We need to keep those for palette animation. */ + uint32 *dst_pal = dst; + uint8 *anim_pal = anim_line; + memcpy(dst, usrc, width * sizeof(uint32)); usrc += width; dst += _screen.pitch; @@ -320,10 +324,24 @@ void Blitter_32bppAnim::CopyFromBuffer(void *video, const void *src, int width, memcpy(anim_line, usrc, width * sizeof(uint8)); usrc = (uint32 *)((uint8 *)usrc + width); anim_line += this->anim_buf_width; - } - /* We update the palette (or the pixels that do animation) immediatly, to avoid graphical glitches */ - this->PaletteAnimate(PALETTE_ANIM_SIZE_START, (_use_palette == PAL_DOS) ? PALETTE_ANIM_SIZE_DOS : PALETTE_ANIM_SIZE_WIN); + /* Okay, it is *very* likely that the image we stored is using + * the wrong palette animated colours. There are two things we + * can do to fix this. The first is simply reviewing the whole + * screen after we copied the buffer, i.e. run PaletteAnimate, + * however that forces a full screen redraw which is expensive + * for just the cursor. This just copies the implementation of + * palette animation, much cheaper though slightly nastier. */ + for (int i = 0; i < width; i++) { + uint colour = *anim_pal; + if (IsInsideBS(colour, PALETTE_ANIM_SIZE_START, count)) { + /* Update this pixel */ + *dst_pal = LookupColourInPalette(colour); + } + dst_pal++; + anim_pal++; + } + } } void Blitter_32bppAnim::CopyToBuffer(const void *video, void *dst, int width, int height) |