From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Sat, 27 Dec 2025 12:03:39 -0800
Subject: Initial commit

---
 contrib/SDL-3.2.8/src/video/sdlgenblit.pl | 736 ++++++++++++++++++++++++++++++
 1 file changed, 736 insertions(+)
 create mode 100755 contrib/SDL-3.2.8/src/video/sdlgenblit.pl

(limited to 'contrib/SDL-3.2.8/src/video/sdlgenblit.pl')

diff --git a/contrib/SDL-3.2.8/src/video/sdlgenblit.pl b/contrib/SDL-3.2.8/src/video/sdlgenblit.pl
new file mode 100755
index 0000000..47c90d5
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/video/sdlgenblit.pl
@@ -0,0 +1,736 @@
+#!/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_RGB332
+# SDL_PIXELFORMAT_XRGB4444
+# SDL_PIXELFORMAT_XRGB1555
+# SDL_PIXELFORMAT_ARGB4444
+# SDL_PIXELFORMAT_ARGB1555
+# SDL_PIXELFORMAT_RGB565
+# SDL_PIXELFORMAT_RGB24
+# SDL_PIXELFORMAT_BGR24
+# SDL_PIXELFORMAT_XRGB8888
+# SDL_PIXELFORMAT_XBGR8888
+# 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 = (
+    "XRGB8888",
+    "XBGR8888",
+    "ARGB8888",
+    "RGBA8888",
+    "ABGR8888",
+    "BGRA8888",
+);
+my @dst_formats = (
+    "XRGB8888",
+    "XBGR8888",
+    "ARGB8888",
+    "ABGR8888",
+);
+
+my %format_size = (
+    "XRGB8888" => 4,
+    "XBGR8888" => 4,
+    "ARGB8888" => 4,
+    "RGBA8888" => 4,
+    "ABGR8888" => 4,
+    "BGRA8888" => 4,
+);
+
+my %format_type = (
+    "XRGB8888" => "Uint32",
+    "XBGR8888" => "Uint32",
+    "ARGB8888" => "Uint32",
+    "RGBA8888" => "Uint32",
+    "ABGR8888" => "Uint32",
+    "BGRA8888" => "Uint32",
+);
+
+my %get_rgba_string_ignore_alpha = (
+    "XRGB8888" => "_R = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _B = (Uint8)_pixel;",
+    "XBGR8888" => "_B = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _R = (Uint8)_pixel;",
+    "ARGB8888" => "_R = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _B = (Uint8)_pixel;",
+    "RGBA8888" => "_R = (Uint8)(_pixel >> 24); _G = (Uint8)(_pixel >> 16); _B = (Uint8)(_pixel >> 8);",
+    "ABGR8888" => "_B = (Uint8)(_pixel >> 16); _G = (Uint8)(_pixel >> 8); _R = (Uint8)_pixel;",
+    "BGRA8888" => "_B = (Uint8)(_pixel >> 24); _G = (Uint8)(_pixel >> 16); _R = (Uint8)(_pixel >> 8);",
+);
+
+my %get_rgba_string = (
+    "XRGB8888" => $get_rgba_string_ignore_alpha{"XRGB8888"},
+    "XBGR8888" => $get_rgba_string_ignore_alpha{"XBGR8888"},
+    "ARGB8888" => $get_rgba_string_ignore_alpha{"ARGB8888"} . " _A = (Uint8)(_pixel >> 24);",
+    "RGBA8888" => $get_rgba_string_ignore_alpha{"RGBA8888"} . " _A = (Uint8)_pixel;",
+    "ABGR8888" => $get_rgba_string_ignore_alpha{"ABGR8888"} . " _A = (Uint8)(_pixel >> 24);",
+    "BGRA8888" => $get_rgba_string_ignore_alpha{"BGRA8888"} . " _A = (Uint8)_pixel;",
+);
+
+my %set_rgba_string = (
+    "XRGB8888" => "_pixel = (_R << 16) | (_G << 8) | _B;",
+    "XBGR8888" => "_pixel = (_B << 16) | (_G << 8) | _R;",
+    "ARGB8888" => "_pixel = (_A << 24) | (_R << 16) | (_G << 8) | _B;",
+    "RGBA8888" => "_pixel = (_R << 24) | (_G << 16) | (_B << 8) | _A;",
+    "ABGR8888" => "_pixel = (_A << 24) | (_B << 16) | (_G << 8) | _R;",
+    "BGRA8888" => "_pixel = (_B << 24) | (_G << 16) | (_R << 8) | _A;",
+);
+
+sub open_file {
+    my $name = shift;
+    open(FILE, ">$name.new") || die "Can't open $name.new: $!";
+    print FILE <<__EOF__;
+// DO NOT EDIT!  This file is generated by sdlgenblit.pl
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken\@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_internal.h"
+#include "SDL_surface_c.h"
+
+#ifdef SDL_HAVE_BLIT_AUTO
+
+/* *INDENT-OFF* */ // clang-format off
+
+__EOF__
+}
+
+sub close_file {
+    my $name = shift;
+    print FILE <<__EOF__;
+/* *INDENT-ON* */ // clang-format on
+
+#endif // SDL_HAVE_BLIT_AUTO
+
+__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 $ignore_alpha = shift;
+
+    my $string;
+    if ($ignore_alpha) {
+        $string = $get_rgba_string_ignore_alpha{$format};
+    } else {
+        $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 $is_modulateA_done = shift;
+    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 $da = "";
+
+    if (!$modulate && !$blend) {
+        # Nice and easy...
+        if ( $src eq $dst ) {
+            print FILE <<__EOF__;
+            *dst = *src;
+__EOF__
+            return;
+        }
+
+        # Matching color-order
+        $sa = $src;
+        $sa =~ s/[XA8]//g;
+        $da = $dst;
+        $da =~ s/[XA8]//g;
+        if ($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") {
+                    # XRGB -> ARGB
+                    print FILE <<__EOF__;
+            pixel = *src;
+            pixel |= (A << 24);
+            *dst = pixel;
+__EOF__
+                } else {
+                    # XRGB -> 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 -> XRGB
+                    print FILE <<__EOF__;
+            pixel = *src;
+            pixel &= 0xFFFFFF;
+            *dst = pixel;
+__EOF__
+                } else {
+                    # RGBA -> XRGB
+                    print FILE <<__EOF__;
+            pixel = *src;
+            pixel >>= 8;
+            *dst = pixel;
+__EOF__
+                }
+            }
+            return;
+        }
+    }
+
+    my $ignore_dst_alpha = !$dst_has_alpha && !$blend;
+
+    if ( $blend ) {
+        get_rgba("src", $src, $ignore_dst_alpha);
+        get_rgba("dst", $dst, !$dst_has_alpha);
+        $s = "src";
+        $d = "dst";
+    } else {
+        get_rgba("", $src, $ignore_dst_alpha);
+    }
+
+    if ( $modulate ) {
+        print FILE <<__EOF__;
+            if (flags & SDL_COPY_MODULATE_COLOR) {
+                MULT_DIV_255(${s}R, modulateR, ${s}R);
+                MULT_DIV_255(${s}G, modulateG, ${s}G);
+                MULT_DIV_255(${s}B, modulateB, ${s}B);
+            }
+__EOF__
+        if (!$ignore_dst_alpha && !$is_modulateA_done) {
+            print FILE <<__EOF__;
+            if (flags & SDL_COPY_MODULATE_ALPHA) {
+                MULT_DIV_255(${s}A, modulateA, ${s}A);
+            }
+__EOF__
+        }
+    }
+    if ( $blend ) {
+        if (!$A_is_const_FF) {
+            print FILE <<__EOF__;
+            if (flags & (SDL_COPY_BLEND|SDL_COPY_ADD)) {
+                if (${s}A < 255) {
+                    MULT_DIV_255(${s}R, ${s}A, ${s}R);
+                    MULT_DIV_255(${s}G, ${s}A, ${s}G);
+                    MULT_DIV_255(${s}B, ${s}A, ${s}B);
+                }
+            }
+__EOF__
+        }
+        print FILE <<__EOF__;
+            switch (flags & SDL_COPY_BLEND_MASK) {
+            case SDL_COPY_BLEND:
+__EOF__
+        if ($A_is_const_FF) {
+            print FILE <<__EOF__;
+                ${d}R = ${s}R;
+                ${d}G = ${s}G;
+                ${d}B = ${s}B;
+__EOF__
+        } else {
+            print FILE <<__EOF__;
+                MULT_DIV_255((255 - ${s}A), ${d}R, ${d}R);
+                ${d}R += ${s}R;
+                MULT_DIV_255((255 - ${s}A), ${d}G, ${d}G);
+                ${d}G += ${s}G;
+                MULT_DIV_255((255 - ${s}A), ${d}B, ${d}B);
+                ${d}B += ${s}B;
+__EOF__
+        }
+        if ( $dst_has_alpha ) {
+            if ($A_is_const_FF) {
+                print FILE <<__EOF__;
+                ${d}A = 0xFF;
+__EOF__
+            } else {
+                print FILE <<__EOF__;
+                MULT_DIV_255((255 - ${s}A), ${d}A, ${d}A);
+                ${d}A += ${s}A;
+__EOF__
+            }
+        }
+
+        print FILE <<__EOF__;
+                break;
+            case SDL_COPY_BLEND_PREMULTIPLIED:
+__EOF__
+        if ($A_is_const_FF) {
+            print FILE <<__EOF__;
+                ${d}R = ${s}R;
+                ${d}G = ${s}G;
+                ${d}B = ${s}B;
+__EOF__
+        } else {
+            print FILE <<__EOF__;
+                MULT_DIV_255((255 - ${s}A), ${d}R, ${d}R);
+                ${d}R += ${s}R;
+                if (${d}R > 255) ${d}R = 255;
+                MULT_DIV_255((255 - ${s}A), ${d}G, ${d}G);
+                ${d}G += ${s}G;
+                if (${d}G > 255) ${d}G = 255;
+                MULT_DIV_255((255 - ${s}A), ${d}B, ${d}B);
+                ${d}B += ${s}B;
+                if (${d}B > 255) ${d}B = 255;
+__EOF__
+        }
+        if ( $dst_has_alpha ) {
+            if ($A_is_const_FF) {
+                print FILE <<__EOF__;
+                ${d}A = 0xFF;
+__EOF__
+            } else {
+                print FILE <<__EOF__;
+                MULT_DIV_255((255 - ${s}A), ${d}A, ${d}A);
+                ${d}A += ${s}A;
+                if (${d}A > 255) ${d}A = 255;
+__EOF__
+            }
+        }
+
+        print FILE <<__EOF__;
+                break;
+            case SDL_COPY_ADD:
+            case SDL_COPY_ADD_PREMULTIPLIED:
+                ${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) ${d}B = 255;
+                break;
+            case SDL_COPY_MOD:
+                MULT_DIV_255(${s}R, ${d}R, ${d}R);
+                MULT_DIV_255(${s}G, ${d}G, ${d}G);
+                MULT_DIV_255(${s}B, ${d}B, ${d}B);
+                break;
+            case SDL_COPY_MUL:
+__EOF__
+        if ($A_is_const_FF) {
+            print FILE <<__EOF__;
+                MULT_DIV_255(${s}R, ${d}R, ${d}R);
+                MULT_DIV_255(${s}G, ${d}G, ${d}G);
+                MULT_DIV_255(${s}B, ${d}B, ${d}B);
+__EOF__
+        } else {
+            print FILE <<__EOF__;
+                {
+                    Uint32 tmp1, tmp2;
+
+                    MULT_DIV_255(${s}R, ${d}R, tmp1);
+                    MULT_DIV_255(${d}R, (255 - ${s}A), tmp2);
+                    ${d}R = tmp1 + tmp2; if (${d}R > 255) ${d}R = 255;
+                    MULT_DIV_255(${s}G, ${d}G, tmp1);
+                    MULT_DIV_255(${d}G, (255 - ${s}A), tmp2);
+                    ${d}G = tmp1 + tmp2; if (${d}G > 255) ${d}G = 255;
+                    MULT_DIV_255(${s}B, ${d}B, tmp1);
+                    MULT_DIV_255(${d}B, (255 - ${s}A), tmp2);
+                    ${d}B = tmp1 + tmp2; if (${d}B > 255) ${d}B = 255;
+                }
+__EOF__
+        }
+
+        print FILE <<__EOF__;
+                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;
+
+    my $dst_has_alpha = ($dst =~ /A/) ? 1 : 0;
+    my $ignore_dst_alpha = !$dst_has_alpha && !$blend;
+
+    my $src_has_alpha = ($src =~ /A/) ? 1 : 0;
+
+    my $is_modulateA_done = 0;
+    my $A_is_const_FF = 0;
+
+    my $sa = $src;
+    my $da = $dst;
+    my $matching_colors = 0;
+
+    $sa =~ s/[XA8]//g;
+    $da =~ s/[XA8]//g;
+    $matching_colors = (!$modulate && !$blend && ($sa eq $da)) ? 1 : 0;
+
+    output_copyfuncname("static void", $src, $dst, $modulate, $blend, $scale, 1, "\n");
+    print FILE <<__EOF__;
+{
+__EOF__
+    if ( $modulate || $blend ) {
+        print FILE <<__EOF__;
+    const int flags = info->flags;
+__EOF__
+    }
+    if ( $modulate ) {
+        print FILE <<__EOF__;
+    const Uint32 modulateR = info->r;
+    const Uint32 modulateG = info->g;
+    const Uint32 modulateB = info->b;
+__EOF__
+        if (!$ignore_dst_alpha) {
+            print FILE <<__EOF__;
+    const Uint32 modulateA = info->a;
+__EOF__
+        }
+    }
+    if ( $blend ) {
+        print FILE <<__EOF__;
+    Uint32 srcpixel;
+__EOF__
+        if (!$ignore_dst_alpha && !$src_has_alpha) {
+            if ($modulate){
+                $is_modulateA_done = 1;
+                print FILE <<__EOF__;
+    const Uint32 srcA = (flags & SDL_COPY_MODULATE_ALPHA) ? modulateA : 0xFF;
+__EOF__
+            } else {
+                $A_is_const_FF = 1;
+            }
+            print FILE <<__EOF__;
+    Uint32 srcR, srcG, srcB;
+__EOF__
+        } else {
+            print FILE <<__EOF__;
+    Uint32 srcR, srcG, srcB, srcA;
+__EOF__
+        }
+        print FILE <<__EOF__;
+    Uint32 dstpixel;
+__EOF__
+        if ($dst_has_alpha) {
+            print FILE <<__EOF__;
+    Uint32 dstR, dstG, dstB, dstA;
+__EOF__
+        } else {
+            print FILE <<__EOF__;
+    Uint32 dstR, dstG, dstB;
+__EOF__
+        }
+    } elsif ( $modulate || $src ne $dst ) {
+        print FILE <<__EOF__;
+    Uint32 pixel;
+__EOF__
+        if ( !$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;
+__EOF__
+            } else {
+                $A_is_const_FF = 1;
+                print FILE <<__EOF__;
+    const Uint32 A = 0xFF;
+__EOF__
+            }
+            if ( !$matching_colors ) {
+                print FILE <<__EOF__;
+    Uint32 R, G, B;
+__EOF__
+            }
+        } elsif ( !$ignore_dst_alpha ) {
+            if ( !$matching_colors ) {
+                print FILE <<__EOF__;
+    Uint32 R, G, B, A;
+__EOF__
+            }
+        } elsif ( !$matching_colors ) {
+            print FILE <<__EOF__;
+    Uint32 R, G, B;
+__EOF__
+        }
+    }
+    if ( $scale ) {
+        print FILE <<__EOF__;
+    Uint64 srcy, srcx;
+    Uint64 posy, posx;
+    Uint64 incy, incx;
+__EOF__
+
+    print FILE <<__EOF__;
+
+    incy = ((Uint64)info->src_h << 16) / info->dst_h;
+    incx = ((Uint64)info->src_w << 16) / info->dst_w;
+    posy = incy / 2;
+
+    while (info->dst_h--) {
+        $format_type{$src} *src = 0;
+        $format_type{$dst} *dst = ($format_type{$dst} *)info->dst;
+        int n = info->dst_w;
+        posx = incx / 2;
+
+        srcy = posy >> 16;
+        while (n--) {
+            srcx = posx >> 16;
+            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, $is_modulateA_done, $A_is_const_FF);
+        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, $is_modulateA_done, $A_is_const_FF);
+        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_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_MASK";
+                                if ( $flags eq "" ) {
+                                    $flags = $flag;
+                                } else {
+                                    $flags = "$flags | $flag";
+                                }
+                            }
+                            if ( $blend ) {
+                                $flag = "SDL_COPY_BLEND_MASK";
+                                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");
-- 
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