encounter
/
SDL
mirror of https://github.com/encounter/SDL.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

blit-auto optimizations

This commit is contained in:
pionere 2022-03-21 18:56:56 +03:00 committed by Ozkan Sezer
parent 9dc201d448
commit dd6c46cb34
1 changed files with 89 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

100
src/video/sdlgenblit.pl
View File

@ -220,16 +220,82 @@ sub output_copycore
my $A_is_const_FF = shift;
my $s = "";
my $d = "";
my $dst_has_alpha = ($dst =~ /A/) ? 1 : 0;
my $src_has_alpha = ($src =~ /A/) ? 1 : 0;
my $sa = "";
my $da = "";
# Nice and easy...
if ( $src eq $dst && !$modulate && !$blend ) {
print FILE <<__EOF__;
if (!$modulate && !$blend) {
# Nice and easy...
if ( $src eq $dst ) {
print FILE <<__EOF__;
*dst = *src;
__EOF__
return;
return;
}
# Matching color-order
$sa = $src;
$sa =~ s/[A8]//g;
$da = $dst;
$da =~ s/[A8]//g;
if ($sa eq $da) {
if ($dst_has_alpha && $src_has_alpha) {
$da = substr $dst, 0, 1;
if ($da eq "A") {
# RGBA -> ARGB
print FILE <<__EOF__;
pixel = *src;
pixel = (pixel >> 8) | (pixel << 24);
*dst = pixel;
__EOF__
} else {
# ARGB -> RGBA -- unused
print FILE <<__EOF__;
pixel = *src;
pixel = (pixel << 8) | A;
*dst = pixel;
__EOF__
}
} elsif ($dst_has_alpha) {
$da = substr $dst, 0, 1;
if ($da eq "A") {
# RGB -> ARGB
print FILE <<__EOF__;
pixel = *src;
pixel |= (A << 24);
*dst = pixel;
__EOF__
} else {
# RGB -> RGBA -- unused
print FILE <<__EOF__;
pixel = *src;
pixel = (pixel << 8) | A;
*dst = pixel;
__EOF__
}
} else {
$sa = substr $src, 0, 1;
if ($sa eq "A") {
# ARGB -> RGB
print FILE <<__EOF__;
pixel = *src;
pixel &= 0xFFFFFF;
*dst = pixel;
__EOF__
} else {
# RGBA -> RGB
print FILE <<__EOF__;
pixel = *src;
pixel >>= 8;
*dst = pixel;
__EOF__
}
}
return;
}
}
my $dst_has_alpha = ($dst =~ /A/) ? 1 : 0;
my $ignore_dst_alpha = !$dst_has_alpha && !$blend;
if ( $blend ) {
@ -366,6 +432,14 @@ sub output_copyfunc
my $is_modulateA_done = 0;
my $A_is_const_FF = 0;
my $sa = $src;
my $da = $dst;
my $matching_colors = 0;
$sa =~ s/[A8]//g;
$da =~ s/[A8]//g;
$matching_colors = (!$modulate && !$blend && ($sa eq $da)) ? 1 : 0;
output_copyfuncname("static void", $src, $dst, $modulate, $blend, $scale, 1, "\n");
print FILE <<__EOF__;
{
@ -424,8 +498,8 @@ __EOF__
print FILE <<__EOF__;
Uint32 pixel;
__EOF__
if (!$ignore_dst_alpha && !$src_has_alpha) {
if ($modulate){
if ( !$ignore_dst_alpha && !$src_has_alpha ) {
if ( $modulate ) {
$is_modulateA_done = 1;
print FILE <<__EOF__;
const Uint32 A = (flags & SDL_COPY_MODULATE_ALPHA) ? modulateA : 0xFF;
@ -436,14 +510,18 @@ __EOF__
const Uint32 A = 0xFF;
__EOF__
}
print FILE <<__EOF__;
if ( !$matching_colors ) {
print FILE <<__EOF__;
Uint32 R, G, B;
__EOF__
} elsif (!$ignore_dst_alpha) {
print FILE <<__EOF__;
}
} elsif ( !$ignore_dst_alpha ) {
if ( !$matching_colors ) {
print FILE <<__EOF__;
Uint32 R, G, B, A;
__EOF__
} else {
}
} elsif ( !$matching_colors ) {
print FILE <<__EOF__;
Uint32 R, G, B;
__EOF__