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|
//
// AggPas 2.4 RM3 pixel format definition file
//
{ blend_pix_rgba }
procedure blend_pix_rgba(p : unsigned_ptr; cr ,cg ,cb ,alpha : int; cover : unsigned = 0 );
var
r ,g ,b ,a : int8u;
begin
r:=order_rgba(p^ ).R;
g:=order_rgba(p^ ).G;
b:=order_rgba(p^ ).B;
a:=order_rgba(p^ ).A;
order_rgba(p^ ).R:=((cr - r ) * alpha + (r shl base_shift ) ) shr base_shift;
order_rgba(p^ ).G:=((cg - g ) * alpha + (g shl base_shift ) ) shr base_shift;
order_rgba(p^ ).B:=((cb - b ) * alpha + (b shl base_shift ) ) shr base_shift;
order_rgba(p^ ).A:=(alpha + a ) - ((alpha * a + base_mask ) shr base_shift );
end;
{ copy_or_blend_pix_rgba }
procedure copy_or_blend_pix_rgba(p : unsigned_ptr; cr ,cg ,cb ,alpha : unsigned ); overload;
begin
if alpha <> 0 then
if alpha = base_mask then
begin
order_rgba(p^ ).R:=cr;
order_rgba(p^ ).G:=cg;
order_rgba(p^ ).B:=cb;
order_rgba(p^ ).A:=base_mask;
end
else
blend_pix_rgba(p ,cr ,cg ,cb ,alpha );
end;
{ copy_or_blend_pix_rgba }
procedure copy_or_blend_pix_rgba(p : unsigned_ptr; cr ,cg ,cb ,alpha ,cover : unsigned ); overload;
begin
if cover = 255 then
copy_or_blend_pix_rgba(p ,cr ,cg ,cb ,alpha )
else
if alpha <> 0 then
begin
alpha:=(alpha * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgba(p^ ).R:=cr;
order_rgba(p^ ).G:=cg;
order_rgba(p^ ).B:=cb;
order_rgba(p^ ).A:=base_mask;
end
else
blend_pix_rgba(p ,cr ,cg ,cb ,alpha ,cover );
end;
end;
{ rgba32_copy_pixel }
procedure rgba32_copy_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr );
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
order_rgba(p^ ).R:=c.r;
order_rgba(p^ ).G:=c.g;
order_rgba(p^ ).B:=c.b;
order_rgba(p^ ).A:=c.a;
end;
{ rgba32_blend_pixel }
procedure rgba32_blend_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr; cover : int8u );
begin
copy_or_blend_pix_rgba(
unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) ) ,
c.r ,c.g ,c.b ,c.a ,cover );
end;
{ rgba32_pixel }
function rgba32_pixel(this : pixel_formats_ptr; x ,y : int ) : aggclr;
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
result.ConstrInt(
order_rgba(p^ ).R ,
order_rgba(p^ ).G ,
order_rgba(p^ ).B ,
order_rgba(p^ ).A );
end;
{ rgba32_copy_hline }
procedure rgba32_copy_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : int8u_ptr;
v : unsigned;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
order_rgba(v ).R:=c.r;
order_rgba(v ).G:=c.g;
order_rgba(v ).B:=c.b;
order_rgba(v ).A:=c.a;
if len > 0 then
repeat
unsigned(pointer(p )^ ):=v;
inc(ptrcomp(p ) ,4 );
dec(len );
until len = 0;
end;
{ rgba32_copy_vline }
procedure rgba32_copy_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : unsigned_ptr;
v : unsigned;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
order_rgba(v ).R:=c.r;
order_rgba(v ).G:=c.g;
order_rgba(v ).B:=c.b;
order_rgba(v ).A:=c.a;
if len > 0 then
repeat
p^:=v;
p :=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end;
{ rgba32_blend_hline }
procedure rgba32_blend_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : unsigned_ptr;
v : unsigned;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgba(v ).R:=c.r;
order_rgba(v ).G:=c.g;
order_rgba(v ).B:=c.b;
order_rgba(v ).A:=c.a;
repeat
p^:=v;
inc(ptrcomp(p ) ,sizeof(unsigned ) );
dec(len );
until len = 0;
end
else
if cover = 255 then
repeat
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha );
inc(ptrcomp(p ) ,sizeof(unsigned ) );
dec(len );
until len = 0
else
repeat
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha ,cover );
inc(ptrcomp(p ) ,sizeof(unsigned ) );
dec(len );
until len = 0;
end;
end;
{ rgba32_blend_vline }
procedure rgba32_blend_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : unsigned_ptr;
v : unsigned;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgba(v ).R:=c.r;
order_rgba(v ).G:=c.g;
order_rgba(v ).B:=c.b;
order_rgba(v ).A:=c.a;
repeat
p^:=v;
p :=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
until len = 0;
end
else
if cover = 255 then
repeat
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0
else
repeat
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha ,cover );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end;
end;
{ rgba32_blend_solid_hspan }
procedure rgba32_blend_solid_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : unsigned_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
repeat
alpha:=(c.a * (covers^ + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgba(p^ ).R:=c.r;
order_rgba(p^ ).G:=c.g;
order_rgba(p^ ).B:=c.b;
order_rgba(p^ ).A:=base_mask;
end
else
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha ,covers^ );
inc(ptrcomp(p ) ,4 );
inc(ptrcomp(covers ) );
dec(len );
until len = 0;
end;
end;
{ rgba32_blend_solid_vspan }
procedure rgba32_blend_solid_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : unsigned_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
repeat
alpha:=(c.a * (covers^ + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgba(p^ ).R:=c.r;
order_rgba(p^ ).G:=c.g;
order_rgba(p^ ).B:=c.b;
order_rgba(p^ ).A:=base_mask;
end
else
blend_pix_rgba(p ,c.r ,c.g ,c.b ,alpha ,covers^ );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
dec(len );
until len = 0;
end;
end;
{ rgba32_blend_color_hspan }
procedure rgba32_blend_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
if covers <> NIL then
repeat
copy_or_blend_pix_rgba(p ,colors.r ,colors.g ,colors.b ,colors.a ,covers^ );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
inc(ptrcomp(p ) ,4 );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0
else
if cover = 255 then
repeat
copy_or_blend_pix_rgba(p ,colors.r ,colors.g ,colors.b ,colors.a );
inc(ptrcomp(p ) ,4 );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgba(p ,colors.r ,colors.g ,colors.b ,colors.a ,cover );
inc(ptrcomp(p ) ,4 );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgba32_blend_color_vspan }
procedure rgba32_blend_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
if covers <> NIL then
repeat
copy_or_blend_pix_rgba(
p ,
colors.r ,
colors.g ,
colors.b ,
colors.a ,
covers^ );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0
else
if cover = 255 then
repeat
copy_or_blend_pix_rgba(
p ,
colors.r ,
colors.g ,
colors.b ,
colors.a );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgba(
p ,
colors.r ,
colors.g ,
colors.b ,
colors.a ,
cover );
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgba32_blend_from }
procedure rgba32_blend_from(this : pixel_formats_ptr; from : pixel_formats_ptr; psrc_ : int8u_ptr; xdst ,ydst ,xsrc ,ysrc : int; len : unsigned; cover : int8u );
var
psrc ,pdst : unsigned_ptr;
incp : int;
begin
psrc:=unsigned_ptr(psrc_ );
pdst:=unsigned_ptr(ptrcomp(this.m_rbuf.row(ydst ) ) + (xdst shl 2 ) * sizeof(int8u ) );
incp:=4;
if ptrcomp(xdst ) > ptrcomp(xsrc ) then
begin
inc(ptrcomp(psrc ) ,((len - 1 ) shl 2 ) * sizeof(int8u ) );
inc(ptrcomp(pdst ) ,((len - 1 ) shl 2 ) * sizeof(int8u ) );
incp:=-4;
end;
if cover = 255 then
repeat
copy_or_blend_pix_rgba(
pdst ,
order_rgba(psrc^ ).R ,
order_rgba(psrc^ ).G ,
order_rgba(psrc^ ).B ,
order_rgba(psrc^ ).A );
inc(ptrcomp(psrc ) ,incp );
inc(ptrcomp(pdst ) ,incp );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgba(
pdst ,
order_rgba(psrc^ ).R ,
order_rgba(psrc^ ).G ,
order_rgba(psrc^ ).B ,
order_rgba(psrc^ ).A ,
cover );
inc(ptrcomp(psrc ) ,incp );
inc(ptrcomp(pdst ) ,incp );
dec(len );
until len = 0;
end;
{ rgba32_copy_color_hspan }
procedure rgba32_copy_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
repeat
order_rgba(pointer(p )^ ).R:=colors.r;
order_rgba(pointer(p )^ ).G:=colors.g;
order_rgba(pointer(p )^ ).B:=colors.b;
order_rgba(pointer(p )^ ).A:=colors.a;
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(p ) ,4 );
dec(len );
until len = 0;
end;
{ rgba32_copy_color_vspan }
procedure rgba32_copy_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : unsigned_ptr;
begin
p:=unsigned_ptr(ptrcomp(this.m_rbuf.row(y ) ) + (x shl 2 ) );
repeat
order_rgba(pointer(p )^ ).R:=colors.r;
order_rgba(pointer(p )^ ).G:=colors.g;
order_rgba(pointer(p )^ ).B:=colors.b;
order_rgba(pointer(p )^ ).A:=colors.a;
p:=unsigned_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgba32_blend_from_color }
procedure rgba32_blend_from_color(this : pixel_formats_ptr; from : pixel_formats_ptr; color : aggclr_ptr; xdst ,ydst ,xsrc ,ysrc : int; len : unsigned; cover : int8u );
var
ppsz : unsigned;
psrc : int8u_ptr;
pdst : unsigned_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=unsigned_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + (xdst shl 2 ) );
repeat
copy_or_blend_pix_rgba(
pdst ,color.r, color.g, color.b, color.a,
shr_int32(psrc^ * cover + base_mask ,base_shift ) );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,4 );
dec(len );
until len = 0;
end;
end;
{ rgba32_blend_from_lut }
procedure rgba32_blend_from_lut(this : pixel_formats_ptr; from : pixel_formats_ptr; color_lut : aggclr_ptr; xdst ,ydst ,xsrc ,ysrc : int; len : unsigned; cover : int8u );
var
ppsz : unsigned;
psrc : int8u_ptr;
pdst : unsigned_ptr;
color : aggclr_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=unsigned_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + (xdst shl 2 ) );
if cover = 255 then
repeat
color:=aggclr_ptr(ptrcomp(color_lut ) + psrc^ * sizeof(aggclr ) );
copy_or_blend_pix_rgba(pdst ,color.r, color.g, color.b, color.a );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,4 );
dec(len );
until len = 0
else
repeat
color:=aggclr_ptr(ptrcomp(color_lut ) + psrc^ * sizeof(aggclr ) );
copy_or_blend_pix_rgba(pdst ,color.r, color.g, color.b, color.a ,cover );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,4 );
dec(len );
until len = 0;
end;
end;
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