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fix for misaligned rows in screen buffer in VOSF full screen mode when screen buffer has slack and source doesn't 

(cherry picked from commit cbca0b629f7b4fab0038a0d45c15a302c3216763)
This commit is contained in:
rakslice 2020-11-13 00:13:34 -08:00
parent c044312b3c
commit 85da18e38f
1 changed files with 4 additions and 5 deletions
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9
BasiliskII/src/CrossPlatform/video_vosf.h
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@ -597,8 +597,8 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
const uint32 n_pixels_left = VIDEO_MODE_X - (n_chunks * n_pixels);
const uint32 src_chunk_size = get_chunk_size_for_depth(VIDEO_MODE_DEPTH, n_pixels);
const uint32 dst_chunk_size = get_chunk_size_for_depth(DepthModeForPixelDepth(VIDEO_DRV_DEPTH), n_pixels);
assert(src_chunk_size <= src_bytes_per_row);
assert(dst_chunk_size <= dst_bytes_per_row);
assert(src_chunk_size * n_chunks <= src_bytes_per_row);
assert(dst_chunk_size * n_chunks <= dst_bytes_per_row);
const uint32 src_chunk_size_left = src_bytes_per_row - (n_chunks * src_chunk_size);
const uint32 dst_chunk_size_left = dst_bytes_per_row - (n_chunks * dst_chunk_size);
@ -666,8 +666,6 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
memcpy(the_buffer_copy + i1, the_buffer + i1, src_chunk_size_left);
Screen_blit(the_host_buffer + i2, the_buffer + i1, src_chunk_size_left);
}
i1 += src_chunk_size_left;
i2 += dst_chunk_size_left;
#ifdef USE_SDL_VIDEO
const int x = n_chunks * n_pixels;
if (x < bb[bbi].x) {
@ -681,7 +679,8 @@ static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
bb[bbi].w = x + n_pixels_left - bb[bbi].x;
#endif
}
i2 += scr_bytes_left;
i1 += src_chunk_size_left;
i2 += dst_chunk_size_left + scr_bytes_left;
#ifdef USE_SDL_VIDEO
bb[bbi].h++;
if (bb[bbi].w && (j == y1 || j == y2 - 1 || j == y2)) {