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|
//
// AggPas 2.4 RM3 pixel format definition file
//
{ make_pix_565 }
function make_pix_565(r ,g ,b : unsigned ) : int16u;
begin
result:=
((r and $F8 ) shl 8 ) or
((g and $FC ) shl 3 ) or
(b shr 3 );
end;
{ make_color_565 }
procedure make_color_565(var color : aggclr; p : int16u_ptr );
begin
color.ConstrInt(
(p^ shr 8 ) and $F8 ,
(p^ shr 3 ) and $FC ,
(p^ shl 3 ) and $F8 );
end;
{ blend_pix_565 }
procedure blend_pix_565(p : int16u_ptr; cr ,cg ,cb ,alpha : int );
var
rgb : int16u;
r ,g ,b : int;
begin
rgb:=p^;
r:=(rgb shr 8 ) and $F8;
g:=(rgb shr 3 ) and $FC;
b:=(rgb shl 3 ) and $F8;
p^:=
((((cr - r ) * alpha + (r shl 8 ) ) ) and $F800 ) or
((((cg - g ) * alpha + (g shl 8 ) ) shr 5 ) and $07E0 ) or
(((cb - b ) * alpha + (b shl 8 ) ) shr 11 );
end;
{ copy_or_blend_pix_565 }
procedure copy_or_blend_pix_565(p : int16u_ptr; c : aggclr_ptr; cover : unsigned );
var
alpha : unsigned;
begin
if c.a <> 0 then
begin
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
p^:=make_pix_565(c.r ,c.g ,c.b )
else
blend_pix_565(p ,c.r ,c.g ,c.b ,alpha );
end;
end;
{ rgb565_copy_pixel }
procedure rgb565_copy_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr );
begin
int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) )^:=make_pix_565(c.r ,c.g ,c.b );
end;
{ rgb565_blend_pixel }
procedure rgb565_blend_pixel(this : pixel_formats_ptr; x ,y : int; c : aggclr_ptr; cover : int8u );
begin
copy_or_blend_pix_565(int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) ) ,c ,cover );
end;
{ rgb565_pixel }
function rgb565_pixel(this : pixel_formats_ptr; x ,y : int ) : aggclr;
begin
make_color_565(
result ,
int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) ) );
end;
{ rgb565_copy_hline }
procedure rgb565_copy_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : int16u_ptr;
v : int16u;
begin
p:=int16u_ptr (ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
v:=make_pix_565(c.r ,c.g ,c.b );
repeat
p^:=v;
inc(ptrcomp(p ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
{ rgb565_copy_vline }
procedure rgb565_copy_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr );
var
p : int16u_ptr;
v : int16u;
begin
p:=int16u_ptr (ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
v:=make_pix_565(c.r ,c.g ,c.b );
repeat
p^:=v;
p :=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end;
{ rgb565_blend_hline }
procedure rgb565_blend_hline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : int16u_ptr;
v : int16u;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
v:=make_pix_565(c.r ,c.g ,c.b );
repeat
p^:=v;
inc(ptrcomp(p ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end
else
repeat
blend_pix_565(p ,c.r ,c.g ,c.b ,alpha );
inc(ptrcomp(p ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
end;
{ rgb565_blend_vline }
procedure rgb565_blend_vline(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; cover : int8u );
var
p : int16u_ptr;
v : int16u;
alpha : unsigned;
begin
if c.a <> 0 then
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
alpha:=(c.a * (cover + 1 ) ) shr 8;
if alpha = base_mask then
begin
v:=make_pix_565(c.r ,c.g ,c.b );
repeat
p^:=v;
p :=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end
else
repeat
blend_pix_565(p ,c.r ,c.g ,c.b ,alpha );
p:=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end;
end;
{ rgb565_blend_solid_hspan }
procedure rgb565_blend_solid_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
copy_or_blend_pix_565(p ,c ,covers^ );
inc(ptrcomp(covers ) );
inc(ptrcomp(p ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
{ rgb565_blend_solid_vspan }
procedure rgb565_blend_solid_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; c : aggclr_ptr; covers : int8u_ptr );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
copy_or_blend_pix_565(p ,c ,covers^ );
inc(ptrcomp(covers ) );
p:=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
dec(len );
until len = 0;
end;
{ rgb565_blend_color_hspan }
procedure rgb565_blend_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
if covers <> NIL then
begin
copy_or_blend_pix_565(p ,colors ,covers^ );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
end
else
copy_or_blend_pix_565(p ,colors ,cover );
inc(ptrcomp(p ) ,sizeof(int16u ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgb565_blend_color_vspan }
procedure rgb565_blend_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr; covers : int8u_ptr; cover : int8u );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
if covers <> NIL then
begin
copy_or_blend_pix_565(p ,colors ,covers^ );
inc(ptrcomp(covers ) ,sizeof(int8u ) );
end
else
copy_or_blend_pix_565(p ,colors ,cover );
p:=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgb565_copy_from }
procedure rgb565_copy_from(this : pixel_formats_ptr; from : rendering_buffer_ptr; xdst ,ydst ,xsrc ,ysrc : int; len : unsigned );
begin
move(
int16u_ptr(ptrcomp(from.row(ysrc ) ) + xsrc * sizeof(int16u ) )^ ,
int16u_ptr(ptrcomp(this.m_rbuf.row(ydst ) ) + xdst * sizeof(int16 ) )^ ,
len * sizeof(int16u ) );
end;
{ rgb565_blend_from }
procedure rgb565_blend_from(this : pixel_formats_ptr; from : pixel_formats_ptr; psrc_ : int8u_ptr; xdst ,ydst ,xsrc ,ysrc : int; len : unsigned; cover : int8u );
var
psrc : int8u_ptr;
pdst : int16u_ptr;
alpha : unsigned;
begin
psrc:=psrc_;
pdst:=int16u_ptr(ptrcomp(this.m_rbuf.row(ydst ) ) + xdst * sizeof(int16u ) );
repeat
alpha:=int8u_ptr(ptrcomp(psrc ) + from.m_order.A )^;
if alpha <> 0 then
if (alpha = base_mask ) and
(cover = 255 ) then
pdst^:=make_pix_565(
int8u_ptr(ptrcomp(psrc ) + from.m_order.R )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.G )^ ,
int8u_ptr(ptrcomp(psrc ) + from.m_order.B )^ )
else
blend_pix_565(
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 ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
{ rgb565_copy_color_hspan }
procedure rgb565_copy_color_hspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
p^:=make_pix_565(colors.r ,colors.g ,colors.b );
inc(ptrcomp(p ) ,sizeof(int16u ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgb565_copy_color_vspan }
procedure rgb565_copy_color_vspan(this : pixel_formats_ptr; x ,y : int; len : unsigned; colors : aggclr_ptr );
var
p : int16u_ptr;
begin
p:=int16u_ptr(ptrcomp(this.m_rbuf.row(y ) ) + x * sizeof(int16u ) );
repeat
p^:=make_pix_565(colors.r ,colors.g ,colors.b );
p :=int16u_ptr(this.m_rbuf.next_row(int8u_ptr(p ) ) );
inc(ptrcomp(colors ) ,sizeof(aggclr ) );
dec(len );
until len = 0;
end;
{ rgb565_blend_from_color }
procedure rgb565_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 : int16u_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=int16u_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + xdst * sizeof(int16u ) );
repeat
blend_pix_565(pdst ,color.r ,color.g ,color.b ,shr_int32(psrc^ * cover + base_mask ,base_shift ) );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
end;
{ rgb565_blend_from_lut }
procedure rgb565_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 : int16u_ptr;
color : aggclr_ptr;
begin
ppsz:=from._pix_width;
psrc:=from.row_ptr(ysrc );
if psrc <> NIL then
begin
pdst:=int16u_ptr(ptrcomp(this.m_rbuf.row_xy(xdst ,ydst ,len ) ) + xdst * sizeof(int16u ) );
repeat
color:=aggclr_ptr(ptrcomp(color_lut ) + psrc^ * sizeof(aggclr ) );
blend_pix_565(pdst ,color.r ,color.g ,color.b ,shr_int32(psrc^ * cover + base_mask ,base_shift ) );
inc(ptrcomp(psrc ) ,ppsz );
inc(ptrcomp(pdst ) ,sizeof(int16u ) );
dec(len );
until len = 0;
end;
end;
|
