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author | Michael Drake <tlsa@netsurf-browser.org> | 2012-09-30 09:40:46 +0100 |
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committer | Michael Drake <tlsa@netsurf-browser.org> | 2012-09-30 09:40:46 +0100 |
commit | 480b2353d815540dca310edc8496da1d3f1b3295 (patch) | |
tree | 1103a068d8674cca5c38047f172ba1167cafde74 /src/plot/32bpp-xrgb8888.c | |
parent | 1fbc4a8b2dfc030f174aaf475f7ea6820864d1a3 (diff) | |
download | libnsfb-480b2353d815540dca310edc8496da1d3f1b3295.tar.gz libnsfb-480b2353d815540dca310edc8496da1d3f1b3295.tar.bz2 |
Split 32bpp support into xrgba, xbgr, and common. Should allow for BGR surfaces as well as RGB.
Diffstat (limited to 'src/plot/32bpp-xrgb8888.c')
-rw-r--r-- | src/plot/32bpp-xrgb8888.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/plot/32bpp-xrgb8888.c b/src/plot/32bpp-xrgb8888.c new file mode 100644 index 0000000..548c970 --- /dev/null +++ b/src/plot/32bpp-xrgb8888.c @@ -0,0 +1,74 @@ +/* + * Copyright 2009 Vincent Sanders <vince@simtec.co.uk> + * Copyright 2010 Michael Drake <tlsa@netsurf-browser.org> + * + * This file is part of libnsfb, http://www.netsurf-browser.org/ + * Licenced under the MIT License, + * http://www.opensource.org/licenses/mit-license.php + */ + +#include <stdbool.h> +#include <endian.h> +#include <stdlib.h> + +#include "libnsfb.h" +#include "libnsfb_plot.h" +#include "libnsfb_plot_util.h" + +#include "nsfb.h" +#include "plot.h" + + +#define UNUSED __attribute__((unused)) + +static inline uint32_t *get_xy_loc(nsfb_t *nsfb, int x, int y) +{ + return (void *)(nsfb->ptr + (y * nsfb->linelen) + (x << 2)); +} + +#if __BYTE_ORDER == __BIG_ENDIAN +static inline nsfb_colour_t pixel_to_colour(UNUSED nsfb_t *nsfb, uint32_t pixel) +{ + return (pixel >> 8) & ~0xFF000000U; +} + +/* convert a colour value to a 32bpp pixel value ready for screen output */ +static inline uint32_t colour_to_pixel(UNUSED nsfb_t *nsfb, nsfb_colour_t c) +{ + return (c << 8); +} +#else /* __BYTE_ORDER == __BIG_ENDIAN */ +static inline nsfb_colour_t pixel_to_colour(UNUSED nsfb_t *nsfb, uint32_t pixel) +{ + return ((pixel & 0xFF) << 16) | + ((pixel & 0xFF00)) | + ((pixel & 0xFF0000) >> 16); +} + +/* convert a colour value to a 32bpp pixel value ready for screen output */ +static inline uint32_t colour_to_pixel(UNUSED nsfb_t *nsfb, nsfb_colour_t c) +{ + return ((c & 0xff0000) >> 16) | (c & 0xff00) | ((c & 0xff) << 16); +} +#endif + +#define PLOT_TYPE uint32_t +#define PLOT_LINELEN(ll) ((ll) >> 2) + +#include "32bpp-common.c" + +const nsfb_plotter_fns_t _nsfb_32bpp_xrgb8888_plotters = { + .line = line, + .fill = fill, + .point = point, + .bitmap = bitmap, + .glyph8 = glyph8, + .glyph1 = glyph1, + .readrect = readrect, +}; + +/* + * Local Variables: + * c-basic-offset:8 + * End: + */ |