Michaël Lemaire
1f58b866e6
git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@462 b1fd45b6-86a6-48da-8261-f70d1f35bdcc
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
#include "system.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include "IL/il.h"
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#include "IL/ilu.h"
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#ifndef NDEBUG
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#define DEBUG_ONETHREAD 1
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#endif
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#ifdef WIN32
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#include <windows.h>
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#endif
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static int _core_count = 1;
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static int _getCoreCount()
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{
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int core_count = 1;
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#ifdef WIN32
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DWORD processAffinityMask;
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DWORD systemAffinityMask;
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if (GetProcessAffinityMask( GetCurrentProcess(),
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&processAffinityMask,
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&systemAffinityMask)){
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processAffinityMask = (processAffinityMask & 0x55555555)
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+ (processAffinityMask >> 1 & 0x55555555);
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processAffinityMask = (processAffinityMask & 0x33333333)
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+ (processAffinityMask >> 2 & 0x33333333);
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processAffinityMask = (processAffinityMask & 0x0f0f0f0f)
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+ (processAffinityMask >> 4 & 0x0f0f0f0f);
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processAffinityMask = (processAffinityMask & 0x00ff00ff)
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+ (processAffinityMask >> 8 & 0x00ff00ff);
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core_count = (processAffinityMask & 0x0000ffff)
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+ (processAffinityMask >>16 & 0x0000ffff);
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}
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#endif
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#ifdef _SC_NPROCESSORS_ONLN
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core_count = (int)sysconf(_SC_NPROCESSORS_ONLN);
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#endif
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#ifdef DEBUG_ONETHREAD
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core_count = 1;
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#endif
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return core_count;
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}
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void systemInit()
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{
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#ifndef GLIB_VERSION_2_32
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g_thread_init(NULL);
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#endif
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_core_count = _getCoreCount();
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ilInit();
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iluInit();
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}
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int systemGetCoreCount()
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{
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return _core_count;
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}
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int systemSavePictureFile(const char* filepath, PictureCallbackSavePixel callback_pixel, void* data, int width, int height)
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{
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ILuint image_id;
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Color result;
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ILuint x, y;
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ILuint rgba;
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ILuint pixels[width * height];
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ILenum error;
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int error_count;
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ilGenImages(1, &image_id);
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ilBindImage(image_id);
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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result = callback_pixel(data, x, y);
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rgba = colorTo32BitRGBA(&result);
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pixels[y * width + x] = rgba;
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}
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}
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ilTexImage((ILuint)width, (ILuint)height, 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, pixels);
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remove(filepath);
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ilSaveImage(filepath);
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ilDeleteImages(1, &image_id);
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error_count = 0;
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while ((error=ilGetError()) != IL_NO_ERROR)
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{
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fprintf(stderr, "IL ERROR : %s\n", iluErrorString(error));
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error_count++;
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}
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return !error_count;
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}
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int systemLoadPictureFile(const char* filepath, PictureCallbackLoadStarted callback_start, PictureCallbackLoadPixel callback_pixel, void* data)
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{
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ILuint image_id;
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ILenum error;
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int error_count;
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int width, height;
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ILuint* pixels;
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int x, y;
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ilGenImages(1, &image_id);
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ilBindImage(image_id);
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if (ilLoadImage(filepath))
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{
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width = ilGetInteger(IL_IMAGE_WIDTH);
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height = ilGetInteger(IL_IMAGE_HEIGHT);
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callback_start(data, width, height);
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pixels = malloc(sizeof(ILuint) * width * height);
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ilCopyPixels(0, 0, 0, width, height, 1, IL_RGBA, IL_UNSIGNED_BYTE, pixels);
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for (y = 0; y < height; y++)
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{
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for (x = 0; x < width; x++)
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{
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callback_pixel(data, x, y, colorFrom32BitRGBA(pixels[y * width + x]));
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}
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}
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free(pixels);
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}
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error_count = 0;
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while ((error=ilGetError()) != IL_NO_ERROR)
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{
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fprintf(stderr, "IL ERROR : %s\n", iluErrorString(error));
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error_count++;
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}
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return !error_count;
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}
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