32ec828835
This gives a much clearer overview of the licensing. It also shows there are some problems: - Some files are under GPLv3 only - Some files have no known license at all.
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/* vim:expandtab:ts=2 sw=2:
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*/
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/* Grafx2 - The Ultimate 256-color bitmap paint program
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Copyright owned by various GrafX2 authors, see COPYRIGHT.txt for details.
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Grafx2 is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2
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of the License.
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Grafx2 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grafx2; if not, see <http://www.gnu.org/licenses/>
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "gfx2surface.h"
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#include "gfx2mem.h"
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#include "errors.h"
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T_GFX2_Surface * New_GFX2_Surface(word width, word height)
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{
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T_GFX2_Surface * surface;
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size_t size;
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size = width * height;
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if (size == 0) // surfaces with no pixels not allowed
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return NULL;
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surface = GFX2_malloc(sizeof(T_GFX2_Surface));
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if (surface == NULL)
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return NULL;
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surface->pixels = GFX2_malloc(size);
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if(surface->pixels == NULL)
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{
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free(surface);
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return NULL;
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}
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memset(surface->palette, 0, sizeof(surface->palette));
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surface->w = width;
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surface->h = height;
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return surface;
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}
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void Free_GFX2_Surface(T_GFX2_Surface * surface)
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{
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free(surface->pixels);
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free(surface);
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}
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byte Get_GFX2_Surface_pixel(const T_GFX2_Surface * surface, int x, int y)
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{
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if (surface == NULL) return 0;
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if (x<0 || x>=surface->w || y<0 || y>=surface->h)
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{
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GFX2_Log(GFX2_WARNING, "Get_GFX2_Surface_pixel() out of bound access (%d,%d)\n", x, y);
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return 0;
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}
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return surface->pixels[x + surface->w * y];
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}
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void Set_GFX2_Surface_pixel(T_GFX2_Surface * surface, int x, int y, byte value)
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{
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if (surface == NULL) return;
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if (x<0 || x>=surface->w || y<0 || y>=surface->h)
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{
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GFX2_Log(GFX2_WARNING, "Set_GFX2_Surface_pixel() out of bound access (%d,%d)\n", x, y);
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return;
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}
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surface->pixels[x + surface->w * y] = value;
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}
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