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Better performance from "Rush" (by using SDL_gfx rotozoom)

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Applying patch from Pere.  ALSO, bumping Tux Paint Magic Tool API version.
This commit is contained in:
Bill Kendrick 2022-10-03 22:50:40 -07:00
parent f32023666e
commit 632459087e
5 changed files with 50 additions and 6 deletions
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32
magic/src/perspective.c
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@ -46,7 +46,6 @@
#include <limits.h>
#include <time.h>
#ifndef gettext_noop
#define gettext_noop(String) String
#endif
@ -496,6 +495,7 @@ void perspective_release(magic_api * api, int which,
Uint32 r, g, b;
float pct;
SDL_Surface *scaled_surf;
SDL_Surface * aux1;
if (new_h == canvas->h || new_h == 0)
{
@ -503,8 +503,10 @@ void perspective_release(magic_api * api, int which,
return; /* Do nothing */
}
if (new_h > canvas->h * 1.5)
new_h = canvas->h * 1.5;
/* FIXME should be a percentage that takes in account what is carried later when blitting scaled surfaces over. */
/* Same should apply for new_h < canvas->h */
if (new_h > canvas->h * 1.08)
new_h = canvas->h * 1.08;
if (new_h < canvas->h)
{
@ -519,6 +521,28 @@ void perspective_release(magic_api * api, int which,
SDL_BlitSurface(last, NULL, canvas, NULL);
aux1 = api->scale(last, last->w, last->h, 0);
for (h = 0; h < h2 - h1; h++)
{
hh = h2 - h;
w = canvas->w * hh / canvas->h;
scaled_surf = api->rotate_scale(aux1, 0, w);
dx1 = (canvas->w - scaled_surf->w) / 2;
dy1 = (canvas->h - scaled_surf->h) / 2;
SDL_Rect rrr;
rrr.x = dx1;
rrr.y =dy1;
rrr.w = dx1 + scaled_surf->w;
rrr.h = dy1 + scaled_surf->h;
SDL_SetSurfaceBlendMode( scaled_surf, SDL_BLENDMODE_BLEND);
SDL_SetSurfaceAlphaMod(scaled_surf,24);
SDL_BlitSurface(scaled_surf, NULL, aux1, &rrr);
SDL_FreeSurface(scaled_surf);
}
SDL_BlitSurface(aux1, NULL, canvas, NULL);
SDL_FreeSurface(aux1);
/*
for (h = 0; h < (h2 - h1); h++)
{
if ((h / 2) % 10 == 0)
@ -566,7 +590,7 @@ void perspective_release(magic_api * api, int which,
}
}
}
}
}*/
update_rect->x = 0;
update_rect->y = 0;