Mercurial > sdl-ios-xcode
view src/video/sdlgenblit.pl @ 3415:1756b9569141
Adam Strzelecki to SDL
Actually after my patch commited in r4928 MinGW configure seems to generate broken Makefile due MSYS bash bug. (Attaching cure/patch below)
The problem is that:
TEST=`echo 'one\\
two\\
three\\'`
echo "$TEST"
Should echo:
one\
two\
three\
Does it on Linux, Mac.. all UNIX but not on MSYS (MinGW) which outputs:
one\two\three\
(new lines removed, probably it doesn't like backslashes)
Probably this bug should be submitted to MSYS team, but not waiting till MSYS gets it fixed (they have very slow release cycles) here goes simple cure...
My patch simply replaces single quoted SED rules where we needed newlien injection with double quoted ones.
Tested on Mac, Linux & MinGW. Please review it ASAP coz this may be showstopper for everybody compiling with MinGW.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 28 Oct 2009 04:27:50 +0000 |
parents | 99210400e8b9 |
children | e743b9c3f6d6 |
line wrap: on
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#!/usr/bin/perl -w # # A script to generate optimized C blitters for Simple DirectMedia Layer # http://www.libsdl.org/ use warnings; use strict; my %file; # The formats potentially supported by this script: # SDL_PIXELFORMAT_INDEX8 # SDL_PIXELFORMAT_RGB332 # SDL_PIXELFORMAT_RGB444 # SDL_PIXELFORMAT_RGB555 # SDL_PIXELFORMAT_ARGB4444 # SDL_PIXELFORMAT_ARGB1555 # SDL_PIXELFORMAT_RGB565 # SDL_PIXELFORMAT_RGB24 # SDL_PIXELFORMAT_BGR24 # SDL_PIXELFORMAT_RGB888 # SDL_PIXELFORMAT_BGR888 # SDL_PIXELFORMAT_ARGB8888 # SDL_PIXELFORMAT_RGBA8888 # SDL_PIXELFORMAT_ABGR8888 # SDL_PIXELFORMAT_BGRA8888 # SDL_PIXELFORMAT_ARGB2101010 # The formats we're actually creating blitters for: my @src_formats = ( "RGB888", "BGR888", "ARGB8888", "RGBA8888", "ABGR8888", "BGRA8888", ); my @dst_formats = ( "RGB888", "BGR888", "ARGB8888", ); my %format_size = ( "RGB888" => 4, "BGR888" => 4, "ARGB8888" => 4, "RGBA8888" => 4, "ABGR8888" => 4, "BGRA8888" => 4, ); my %format_type = ( "RGB888" => "Uint32", "BGR888" => "Uint32", "ARGB8888" => "Uint32", "RGBA8888" => "Uint32", "ABGR8888" => "Uint32", "BGRA8888" => "Uint32", ); my %get_rgba_string = ( "RGB888" => "_R = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _B = (Uint8)_pixel; _A = 0xFF;", "BGR888" => "_B = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _R = (Uint8)_pixel; _A = 0xFF;", "ARGB8888" => "_A = (Uint8)(_pixel >> 24); _R = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _B = (Uint8)_pixel;", "RGBA8888" => "_R = (Uint8)(_pixel >> 24); _G = (Uint8)(_pixel >> 16); _B = (Uint8)(_pixel >> 8); _A = (Uint8)_pixel;", "ABGR8888" => "_A = (Uint8)(_pixel >> 24); _B = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _R = (Uint8)_pixel;", "BGRA8888" => "_B = (Uint8)(_pixel >> 24); _G = (Uint8)(_pixel >> 16); _R = (Uint8)(_pixel >> 8); _A = (Uint8)_pixel;", ); my %set_rgba_string = ( "RGB888" => "_pixel = ((Uint32)_R << 16) | ((Uint32)_G << 8) | _B;", "BGR888" => "_pixel = ((Uint32)_B << 16) | ((Uint32)_G << 8) | _R;", "ARGB8888" => "_pixel = ((Uint32)_A << 24) | ((Uint32)_R << 16) | ((Uint32)_G << 8) | _B;", "RGBA8888" => "_pixel = ((Uint32)_R << 24) | ((Uint32)_G << 16) | ((Uint32)_B << 8) | _A;", "ABGR8888" => "_pixel = ((Uint32)_A << 24) | ((Uint32)_B << 16) | ((Uint32)_G << 8) | _R;", "BGRA8888" => "_pixel = ((Uint32)_B << 24) | ((Uint32)_G << 16) | ((Uint32)_R << 8) | _A;", ); sub open_file { my $name = shift; open(FILE, ">$name.new") || die "Cant' open $name.new: $!"; print FILE <<__EOF__; /* DO NOT EDIT! This file is generated by sdlgenblit.pl */ /* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken\@libsdl.org */ #include "SDL_config.h" /* *INDENT-OFF* */ __EOF__ } sub close_file { my $name = shift; print FILE <<__EOF__; /* *INDENT-ON* */ /* vi: set ts=4 sw=4 expandtab: */ __EOF__ close FILE; if ( ! -f $name || system("cmp -s $name $name.new") != 0 ) { rename("$name.new", "$name"); } else { unlink("$name.new"); } } sub output_copydefs { print FILE <<__EOF__; extern SDL_BlitFuncEntry SDL_GeneratedBlitFuncTable[]; __EOF__ } sub output_copyfuncname { my $prefix = shift; my $src = shift; my $dst = shift; my $modulate = shift; my $blend = shift; my $scale = shift; my $args = shift; my $suffix = shift; print FILE "$prefix SDL_Blit_${src}_${dst}"; if ( $modulate ) { print FILE "_Modulate"; } if ( $blend ) { print FILE "_Blend"; } if ( $scale ) { print FILE "_Scale"; } if ( $args ) { print FILE "(SDL_BlitInfo *info)"; } print FILE "$suffix"; } sub get_rgba { my $prefix = shift; my $format = shift; my $string = $get_rgba_string{$format}; $string =~ s/_/$prefix/g; if ( $prefix ne "" ) { print FILE <<__EOF__; ${prefix}pixel = *$prefix; __EOF__ } else { print FILE <<__EOF__; pixel = *src; __EOF__ } print FILE <<__EOF__; $string __EOF__ } sub set_rgba { my $prefix = shift; my $format = shift; my $string = $set_rgba_string{$format}; $string =~ s/_/$prefix/g; print FILE <<__EOF__; $string *dst = ${prefix}pixel; __EOF__ } sub output_copycore { my $src = shift; my $dst = shift; my $modulate = shift; my $blend = shift; my $s = ""; my $d = ""; # Nice and easy... if ( $src eq $dst && !$modulate && !$blend ) { print FILE <<__EOF__; *dst = *src; __EOF__ return; } if ( $blend ) { get_rgba("src", $src); get_rgba("dst", $dst); $s = "src"; $d = "dst"; } else { get_rgba("", $src); } if ( $modulate ) { print FILE <<__EOF__; if (flags & SDL_COPY_MODULATE_COLOR) { ${s}R = (${s}R * modulateR) / 255; ${s}G = (${s}G * modulateG) / 255; ${s}B = (${s}B * modulateB) / 255; } if (flags & SDL_COPY_MODULATE_ALPHA) { ${s}A = (${s}A * modulateA) / 255; } __EOF__ } if ( $blend ) { print FILE <<__EOF__; if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) { /* This goes away if we ever use premultiplied alpha */ if (${s}A < 255) { ${s}R = (${s}R * ${s}A) / 255; ${s}G = (${s}G * ${s}A) / 255; ${s}B = (${s}B * ${s}A) / 255; } } switch (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)) { case SDL_COPY_MASK: if (${s}A) { ${d}R = ${s}R; ${d}G = ${s}G; ${d}B = ${s}B; } break; case SDL_COPY_BLEND: ${d}R = ${s}R + ((255 - ${s}A) * ${d}R) / 255; ${d}G = ${s}G + ((255 - ${s}A) * ${d}G) / 255; ${d}B = ${s}B + ((255 - ${s}A) * ${d}B) / 255; break; case SDL_COPY_ADD: ${d}R = ${s}R + ${d}R; if (${d}R > 255) ${d}R = 255; ${d}G = ${s}G + ${d}G; if (${d}G > 255) ${d}G = 255; ${d}B = ${s}B + ${d}B; if (${d}B > 255) ${d}B = 255; break; case SDL_COPY_MOD: ${d}R = (${s}R * ${d}R) / 255; ${d}G = (${s}G * ${d}G) / 255; ${d}B = (${s}B * ${d}B) / 255; break; } __EOF__ } if ( $blend ) { set_rgba("dst", $dst); } else { set_rgba("", $dst); } } sub output_copyfunc { my $src = shift; my $dst = shift; my $modulate = shift; my $blend = shift; my $scale = shift; output_copyfuncname("static void", $src, $dst, $modulate, $blend, $scale, 1, "\n"); print FILE <<__EOF__; { const int flags = info->flags; __EOF__ if ( $modulate ) { print FILE <<__EOF__; const Uint32 modulateR = info->r; const Uint32 modulateG = info->g; const Uint32 modulateB = info->b; const Uint32 modulateA = info->a; __EOF__ } if ( $blend ) { print FILE <<__EOF__; Uint32 srcpixel; Uint32 srcR, srcG, srcB, srcA; Uint32 dstpixel; Uint32 dstR, dstG, dstB, dstA; __EOF__ } elsif ( $modulate || $src ne $dst ) { print FILE <<__EOF__; Uint32 pixel; Uint32 R, G, B, A; __EOF__ } if ( $scale ) { print FILE <<__EOF__; int srcy, srcx; int posy, posx; int incy, incx; srcy = 0; posy = 0; incy = (info->src_h << 16) / info->dst_h; incx = (info->src_w << 16) / info->dst_w; while (info->dst_h--) { $format_type{$src} *src; $format_type{$dst} *dst = ($format_type{$dst} *)info->dst; int n = info->dst_w; srcx = -1; posx = 0x10000L; while (posy >= 0x10000L) { ++srcy; posy -= 0x10000L; } while (n--) { if (posx >= 0x10000L) { while (posx >= 0x10000L) { ++srcx; posx -= 0x10000L; } src = ($format_type{$src} *)(info->src + (srcy * info->src_pitch) + (srcx * $format_size{$src})); __EOF__ print FILE <<__EOF__; } __EOF__ output_copycore($src, $dst, $modulate, $blend); print FILE <<__EOF__; posx += incx; ++dst; } posy += incy; info->dst += info->dst_pitch; } __EOF__ } else { print FILE <<__EOF__; while (info->dst_h--) { $format_type{$src} *src = ($format_type{$src} *)info->src; $format_type{$dst} *dst = ($format_type{$dst} *)info->dst; int n = info->dst_w; while (n--) { __EOF__ output_copycore($src, $dst, $modulate, $blend); print FILE <<__EOF__; ++src; ++dst; } info->src += info->src_pitch; info->dst += info->dst_pitch; } __EOF__ } print FILE <<__EOF__; } __EOF__ } sub output_copyfunc_h { } sub output_copyinc { print FILE <<__EOF__; #include "SDL_video.h" #include "SDL_blit.h" #include "SDL_blit_auto.h" __EOF__ } sub output_copyfunctable { print FILE <<__EOF__; SDL_BlitFuncEntry SDL_GeneratedBlitFuncTable[] = { __EOF__ for (my $i = 0; $i <= $#src_formats; ++$i) { my $src = $src_formats[$i]; for (my $j = 0; $j <= $#dst_formats; ++$j) { my $dst = $dst_formats[$j]; for (my $modulate = 0; $modulate <= 1; ++$modulate) { for (my $blend = 0; $blend <= 1; ++$blend) { for (my $scale = 0; $scale <= 1; ++$scale) { if ( $modulate || $blend || $scale ) { print FILE " { SDL_PIXELFORMAT_$src, SDL_PIXELFORMAT_$dst, "; my $flags = ""; my $flag = ""; if ( $modulate ) { $flag = "SDL_COPY_MODULATE_COLOR | SDL_COPY_MODULATE_ALPHA"; if ( $flags eq "" ) { $flags = $flag; } else { $flags = "$flags | $flag"; } } if ( $blend ) { $flag = "SDL_COPY_MASK | SDL_COPY_BLEND | SDL_COPY_ADD | SDL_COPY_MOD"; if ( $flags eq "" ) { $flags = $flag; } else { $flags = "$flags | $flag"; } } if ( $scale ) { $flag = "SDL_COPY_NEAREST"; if ( $flags eq "" ) { $flags = $flag; } else { $flags = "$flags | $flag"; } } if ( $flags eq "" ) { $flags = "0"; } print FILE "($flags), SDL_CPU_ANY,"; output_copyfuncname("", $src_formats[$i], $dst_formats[$j], $modulate, $blend, $scale, 0, " },\n"); } } } } } } print FILE <<__EOF__; { 0, 0, 0, 0, NULL } }; __EOF__ } sub output_copyfunc_c { my $src = shift; my $dst = shift; for (my $modulate = 0; $modulate <= 1; ++$modulate) { for (my $blend = 0; $blend <= 1; ++$blend) { for (my $scale = 0; $scale <= 1; ++$scale) { if ( $modulate || $blend || $scale ) { output_copyfunc($src, $dst, $modulate, $blend, $scale); } } } } } open_file("SDL_blit_auto.h"); output_copydefs(); for (my $i = 0; $i <= $#src_formats; ++$i) { for (my $j = 0; $j <= $#dst_formats; ++$j) { output_copyfunc_h($src_formats[$i], $dst_formats[$j]); } } print FILE "\n"; close_file("SDL_blit_auto.h"); open_file("SDL_blit_auto.c"); output_copyinc(); for (my $i = 0; $i <= $#src_formats; ++$i) { for (my $j = 0; $j <= $#dst_formats; ++$j) { output_copyfunc_c($src_formats[$i], $dst_formats[$j]); } } output_copyfunctable(); close_file("SDL_blit_auto.c");