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|
//
// AggPas 2.4 RM3 pixel format definition file
//
{ blend_pix_rgb }
procedure blend_pix_rgb(p : int8u_ptr; cr ,cg ,cb ,alpha : int; cover : unsigned = 0 );
begin
order_rgb(pointer(p )^ ).R:=order_rgb(pointer(p )^ ).R + ((cr - order_rgb(pointer(p )^ ).R ) * alpha ) shr base_shift;
order_rgb(pointer(p )^ ).G:=order_rgb(pointer(p )^ ).G + ((cg - order_rgb(pointer(p )^ ).G ) * alpha ) shr base_shift;
order_rgb(pointer(p )^ ).B:=order_rgb(pointer(p )^ ).B + ((cb - order_rgb(pointer(p )^ ).B ) * alpha ) shr base_shift;
end;
{ copy_or_blend_pix_rgb }
procedure copy_or_blend_pix_rgb(p : int8u_ptr; c : aggclr_ptr; cover : unsigned ); overload;
var
alpha : unsigned;
begin
if c.a <> 0 then
begin
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
end
else
blend_pix_rgb(p ,c.r ,c.g ,c.b ,alpha ,cover );
end;
end;
{ copy_or_blend_pix_rgb }
procedure copy_or_blend_pix_rgb(p : int8u_ptr; c : aggclr_ptr ); overload;
begin
if c.a <> 0 then
if c.a = base_mask then
begin
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
end
else
blend_pix_rgb(p ,c.r ,c.g ,c.b ,c.a );
end;
{ rgb24_copy_pixel }
procedure rgb24_copy_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
end;
{ rgb24_blend_pixel }
procedure rgb24_blend_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr; cover : int8u );
begin
copy_or_blend_pix_rgb(int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x ) ,c ,cover );
end;
{ rgb24_pixel }
function rgb24_pixel(this : pixel_formats_ptr; x ,y : int ) : aggclr;
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
result.ConstrInt(
order_rgb(pointer(p )^ ).R ,
order_rgb(pointer(p )^ ).G ,
order_rgb(pointer(p )^ ).B );
end;
{ rgb24_copy_hline }
procedure rgb24_copy_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0;
end;
{ rgb24_copy_vline }
procedure rgb24_copy_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
p:=this.m_rbuf.next_row(p );
dec(len );
until len = 0;
end;
{ rgb24_blend_hline }
procedure rgb24_blend_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : int8u_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
repeat
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0
else
repeat
blend_pix_rgb(p ,c.r ,c.g ,c.b ,alpha );
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0;
end;
end;
{ rgb24_blend_vline }
procedure rgb24_blend_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : int8u_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
repeat
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
dec(len );
until len = 0
else
repeat
blend_pix_rgb(p ,c.r ,c.g ,c.b ,alpha ,cover );
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
dec(len );
until len = 0;
end;
end;
{ rgb24_blend_solid_hspan }
procedure rgb24_blend_solid_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : int8u_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
alpha:=(c.a * (covers^ + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
end
else
blend_pix_rgb(p ,c.r ,c.g ,c.b ,alpha ,covers^ );
inc(ptrcomp(p ) ,3 );
inc(ptrcomp(covers ) );
dec(len );
until len = 0;
end;
end;
{ rgb24_blend_solid_vspan }
procedure rgb24_blend_solid_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : int8u_ptr;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
alpha:=(c.a * (covers^ + 1 ) ) shr 8;
if alpha = base_mask then
begin
order_rgb(pointer(p )^ ).R:=c.r;
order_rgb(pointer(p )^ ).G:=c.g;
order_rgb(pointer(p )^ ).B:=c.b;
end
else
blend_pix_rgb(p ,c.r ,c.g ,c.b ,alpha,covers^ );
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
inc(ptrcomp(covers ) );
dec(len );
until len = 0;
end;
end;
{ rgb24_blend_color_hspan }
procedure rgb24_blend_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
if covers <> NIL then
repeat
copy_or_blend_pix_rgb(p ,colors ,covers^ );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0
else
if cover = 255 then
repeat
copy_or_blend_pix_rgb(p ,colors );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgb(p ,colors ,cover );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0;
end;
{ rgb24_blend_color_vspan }
procedure rgb24_blend_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
if covers <> NIL then
repeat
copy_or_blend_pix_rgb(p ,colors ,covers^ );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
dec(len );
until len = 0
else
if cover = 255 then
repeat
copy_or_blend_pix_rgb(p ,colors );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgb(p ,colors ,cover );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
dec(len );
until len = 0;
end;
{ rgb24_blend_from }
procedure rgb24_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 : int8u_ptr;
color : aggclr;
alpha : unsigned;
begin
psrc:=psrc_;
pdst:=int8u_ptr(ptrcomp(this.m_rbuf.row(ydst ) ) + xdst * 3 * sizeof(int8u ) );
if cover = 255 then
repeat
alpha:=int8u_ptr(ptrcomp(psrc ) + from.m_order.A )^;
if alpha <> 0 then
if alpha = base_mask then
begin
order_rgb(pointer(pdst )^ ).R:=int8u_ptr(ptrcomp(psrc ) + from.m_order.R )^;
order_rgb(pointer(pdst )^ ).G:=int8u_ptr(ptrcomp(psrc ) + from.m_order.G )^;
order_rgb(pointer(pdst )^ ).B:=int8u_ptr(ptrcomp(psrc ) + from.m_order.B )^;
end
else
blend_pix_rgb(
pdst ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.R )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.G )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.B )^ ,
alpha );
inc(ptrcomp(psrc ) ,4 );
inc(ptrcomp(pdst ) ,3 );
dec(len );
until len = 0
else
repeat
color.ConstrInt(
int8u_ptr(ptrcomp(psrc ) + from.m_order.R )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.G )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.B )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.A )^ );
copy_or_blend_pix_rgb(pdst ,@color ,cover );
inc(ptrcomp(psrc ) ,4 );
inc(ptrcomp(pdst ) ,3 );
dec(len );
until len = 0;
end;
{ rgb24_copy_color_hspan }
procedure rgb24_copy_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
order_rgb(pointer(p )^ ).R:=colors.r;
order_rgb(pointer(p )^ ).G:=colors.g;
order_rgb(pointer(p )^ ).B:=colors.b;
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
inc(ptrcomp(p ) ,3 );
dec(len );
until len = 0;
end;
{ rgb24_copy_color_vspan }
procedure rgb24_copy_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : int8u_ptr;
begin
p:=int8u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x + x + x );
repeat
order_rgb(pointer(p )^ ).R:=colors.r;
order_rgb(pointer(p )^ ).G:=colors.g;
order_rgb(pointer(p )^ ).B:=colors.b;
p:=int8u_ptr(this.m_rbuf.next_row(p ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgb24_blend_from_color }
procedure rgb24_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 ,pdst : int8u_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=int8u_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + xdst * 3 * sizeof(int8u ) );
repeat
copy_or_blend_pix_rgb(
pdst ,color ,
shr_int32(psrc^ * cover + base_mask ,base_shift ) );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,3 );
dec(len );
until len = 0;
end;
end;
{ rgb24_blend_from_lut }
procedure rgb24_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 ,pdst : int8u_ptr;
color : aggclr_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=int8u_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + xdst * 3 * sizeof(int8u ) );
if cover = 255 then
repeat
color:=aggclr_ptr(ptrcomp(color_lut ) + psrc^ * sizeof(aggclr ) );
blend_pix_rgb(pdst ,color.r ,color.g ,color.b ,color.a );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,3 );
dec(len );
until len = 0
else
repeat
copy_or_blend_pix_rgb(
pdst ,aggclr_ptr(ptrcomp(color_lut ) + psrc^ * sizeof(aggclr ) ) ,cover );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,3 );
dec(len );
until len = 0;
end;
end;
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