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Use standard bitmap composition for rendered text bitmaps

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This commit is contained in:
Ilari Liusvaara 2015-06-24 12:54:45 +03:00
parent 859d60513f
commit 957738035f
1 changed files with 30 additions and 9 deletions
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39
src/lua/halo.cpp
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@ -1,4 +1,5 @@
#include "lua/halo.hpp"
#include "lua/bitmap.hpp"
#include "library/range.hpp"
#include "library/eatarg.hpp"
#include <cstdint>
@ -46,6 +47,32 @@ namespace
for(size_t i = 0; i < pixels; i++)
pixmap[i] &= 0x03;
}
template<bool T> class text_bitmap_holder
{
public:
text_bitmap_holder(const framebuffer::color& bg, const framebuffer::color& fg,
const framebuffer::color& hl, const unsigned char* _pixmap, size_t _width)
{
cmap[0] = bg;
cmap[1] = fg;
cmap[2] = hl;
cmap[3] = fg;
pixmap = _pixmap;
width = _width;
}
size_t stride() { return width; }
void lock() {}
void unlock() {}
void draw(size_t bmpidx, typename framebuffer::fb<T>::element_t& target)
{
cmap[pixmap[bmpidx]].apply(target);
}
private:
framebuffer::color cmap[4];
const unsigned char* pixmap;
size_t width;
};
}
void render_halo(unsigned char* pixmap, size_t width, size_t height)
@ -69,7 +96,6 @@ template<bool X> void halo_blit(struct framebuffer::fb<X>& scr, unsigned char* p
{
uint32_t low = 1;
uint32_t border = 0;
framebuffer::color cmap4[4] = {bg, fg, hl, fg};
if(hl) {
//Make space for halo.
low = 0;
@ -78,14 +104,9 @@ template<bool X> void halo_blit(struct framebuffer::fb<X>& scr, unsigned char* p
}
range bX = (range::make_w(scr.get_width()) - x) & range::make_s(low, owidth + border);
range bY = (range::make_w(scr.get_height()) - y) & range::make_s(low, oheight + border);
for(uint32_t r = bY.low(); r < bY.high(); r++) {
typename framebuffer::fb<X>::element_t* rptr = scr.rowptr(y + r);
size_t eptr = x + bX.low();
for(uint32_t c = bX.low(); c < bX.high(); c++, eptr++) {
uint16_t i = pixmap[r * width + c];
cmap4[i].apply(rptr[eptr]);
}
}
//Because outside is always false, screen can be passed as 0x0.
lua_bitmap_composite(scr, x, y, bX, bY, range::make_w(0), range::make_w(0), false,
text_bitmap_holder<X>(bg, fg, hl, pixmap, width));
}
void _pull_fn_68269328963289632986296386936()