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Everything seems to work again now

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Originally committed to SVN as r1486.
This commit is contained in:
Niels Martin Hansen 2007-08-14 00:45:09 +00:00
parent 2699972427
commit 6b72db3b80
1 changed files with 23 additions and 18 deletions
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41
OverLua/video_frame.h
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@ -42,10 +42,10 @@ class BaseImageAggregate;
// Supported pixel formats
namespace PixelFormat {
// A constant value with a fake assignment operator
// A constant value with a fake assignment operator, taking up no space
template <class T, T v>
struct NopAssigningConstant {
operator T() { return v; }
operator T() const { return v; }
void operator = (const T &n) { }
};
typedef NopAssigningConstant<uint8_t,255> ROA; // "read only alpha"
@ -116,7 +116,7 @@ namespace PixelFormat {
inline uint8_t &B() { return b; } inline uint8_t B() const { return b; }
inline uint8_t &A() { return a; } inline uint8_t A() const { return a; }
RGBA() : r(0), g(0), b(0), a(0) { }
template <class PixFmt> RGBA(const PixFmt &src) { a = src.A(); r = src.R(); g = src.G(); b = src.B(); }
template <class PixFmt> RGBA(const PixFmt &src) { a = src.a; r = src.r; g = src.g; b = src.b; }
};
struct BGRA {
uint8_t b, g, r, a;
@ -145,6 +145,12 @@ namespace PixelFormat {
ABGR() : r(0), g(0), b(0), a(0) { }
template <class PixFmt> ABGR(const PixFmt &src) { a = src.A(); r = src.R(); g = src.G(); b = src.B(); }
};
// cairo types
// These are only true for little endian architectures
// If OverLua is ever to run on big endian archs some conditional compiling should be used here
typedef BGRX cairo_rgb24;
typedef BGRA cairo_argb32;
};
@ -247,15 +253,15 @@ private:
lua_pushnil(L);
if (!lua_next(L, 3)) goto badtable;
if (!lua_isnumber(L, -1)) goto badtable;
color.R() = (unsigned char)lua_tointeger(L, -1);
color.r = (unsigned char)lua_tointeger(L, -1);
lua_pop(L, 1);
if (!lua_next(L, 3)) goto badtable;
if (!lua_isnumber(L, -1)) goto badtable;
color.G() = (unsigned char)lua_tointeger(L, -1);
color.g = (unsigned char)lua_tointeger(L, -1);
lua_pop(L, 1);
if (!lua_next(L, 3)) goto badtable;
if (!lua_isnumber(L, -1)) goto badtable;
color.B() = (unsigned char)lua_tointeger(L, -1);
color.b = (unsigned char)lua_tointeger(L, -1);
lua_pop(L, 2);
(*ud)->Pixel(x, y) = color;
@ -371,10 +377,9 @@ badtable:
#pragma omp parallel for
for (int y = 0; y < height; y++) {
PixFmt *ipix = (PixFmt*)((*ud)->data + y*((*ud)->stride));
PixelFormat::XBGR *opix = (PixelFormat::XBGR*)(surfdata + y*surfstride);
PixelFormat::cairo_rgb24 *opix = (PixelFormat::cairo_rgb24*)(surfdata + y*surfstride);
for (int x = 0; x < width; x++) {
// Hoping this will get optimised at least a bit by the compiler
*opix++ = PixelFormat::XBGR(*ipix++);
*opix++ = *ipix++;
}
}
cairo_surface_mark_dirty(surf);
@ -395,7 +400,7 @@ badtable:
MyType **ud = (MyType**)lua_touserdata(L, lua_upvalueindex(1));
LuaCairoSurface *surfwrap = LuaCairoSurface::GetObjPointer(L, 1);
if (!surfwrap) {
lua_pushliteral(L, "Argument to frame.overlay_cairo_surface is not a cairo surface");
lua_pushliteral(L, "Argument to overlay_cairo_surface is not a cairo surface");
lua_error(L);
return 0;
}
@ -405,7 +410,7 @@ badtable:
// More argument checks
cairo_surface_t *surf = surfwrap->GetSurface();
if (cairo_surface_get_type(surf) != CAIRO_SURFACE_TYPE_IMAGE) {
lua_pushliteral(L, "Argument to frame.overlay_cairo_surface is not a cairo image surface");
lua_pushliteral(L, "Argument to overlay_cairo_surface is not a cairo image surface");
lua_error(L);
return 0;
}
@ -433,16 +438,16 @@ badtable:
int lines_to_compose = (slines_to_compose<flines_to_compose)?slines_to_compose:flines_to_compose;
#pragma omp parallel for
for (int composition_line = 0; composition_line < lines_to_compose; composition_line++) {
PixelFormat::ARGB *sline = (PixelFormat::ARGB*)(sdata + composition_line*sstride);
PixelFormat::cairo_argb32 *sline = (PixelFormat::cairo_argb32*)(sdata + composition_line*sstride);
int fx = xpos;
int sx = 0;
if (fx < 0) fx = 0, sx = -xpos;
for ( ; sx < swidth && fx < fwidth; fx++, sx++) {
PixFmt &pix = (*ud)->Pixel(fx, fy+composition_line);
unsigned char a = 0xff - sline[sx].A();
pix.R() = sline[sx].R() + a*pix.R()/255;
pix.G() = sline[sx].G() + a*pix.G()/255;
pix.B() = sline[sx].B() + a*pix.B()/255;
unsigned char a = 0xff - sline[sx].a;
pix.r = sline[sx].r + a*pix.r/255;
pix.g = sline[sx].g + a*pix.g/255;
pix.b = sline[sx].b + a*pix.b/255;
}
}
}
@ -455,12 +460,12 @@ badtable:
int lines_to_compose = (slines_to_compose<flines_to_compose)?slines_to_compose:flines_to_compose;
#pragma omp parallel for
for (int composition_line = 0; composition_line < lines_to_compose; composition_line++) {
PixelFormat::XRGB *sline = (PixelFormat::XRGB*)(sdata + composition_line*sstride);
PixelFormat::cairo_rgb24 *sline = (PixelFormat::cairo_rgb24*)(sdata + composition_line*sstride);
int fx = xpos;
int sx = 0;
if (fx < 0) fx = 0, sx = -xpos;
for ( ; sx < swidth && fx < fwidth; fx++, sx++) {
sline[sx] = PixelFormat::XRGB((*ud)->Pixel(fx, fy+composition_line));
(*ud)->Pixel(fx, fy+composition_line) = sline[sx];
}
}
}