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https://git.planet-casio.com/Lephenixnoir/gint.git
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28bea2e1ce
Nothing interesting in this commit, just moving files around, making sure every target compiles every file, and controlling with macros instead. Basic support for fxg3a target in CMakeLists.txt, cmake/FindGint.cmake, giteapc.make and include/gint/config.h.in. The rest is forgettable.
29 lines
642 B
C
29 lines
642 B
C
#include <gint/image.h>
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#include "fixed.h"
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#include <gint/config.h>
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#if GINT_RENDER_RGB
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void image_scale(image_t const *src, int gamma_x, int gamma_y,
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struct image_linear_map *map)
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{
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if(!image_valid(src))
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return;
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int inv_gamma_x = fdiv(fconst(1.0), gamma_x);
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int inv_gamma_y = fdiv(fconst(1.0), gamma_y);
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map->u = fconst(0);
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map->v = fconst(0);
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map->dx_u = inv_gamma_x;
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map->dx_v = 0;
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map->dy_u = 0;
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map->dy_v = inv_gamma_y;
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map->src_w = src->width;
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map->src_h = src->height;
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map->dst_w = fround(src->width * gamma_x);
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map->dst_h = fround(src->height * gamma_y);
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}
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#endif
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