#include <stdio.h>#include <string.h>#include "agg_rendering_buffer.h"const int HEIGHT = 480;const int WIDTH = 640;/* PPM(Portable PixMap) * Portable BitMap    [1]    P1    ASCII    P4    binary    .pbm    0–1 (black & white) * Portable GrayMap    [2]    P2    ASCII    P5    binary    .pgm    0–255 (gray scale) * Portable PixMap    [3]    P3    ASCII    P6    binary    .ppm    0–255 (RGB) * * Row 0:R G B R G B ... * Row 1:R G B R G B ... * ... */ bool writePpm(const unsigned char* buffer,        unsigned width,        unsigned height,        const char* fileName){    FILE* fd = fopen(fileName, "wb");    if(fd)    {        fprintf(fd, "P6 %d %d 255 ", width, height);        fwrite(buffer, 1, width * height * 3, fd);        fclose(fd);        return true;    }    return false;}bool setPixel(agg::rendering_buffer& rbuf,        int x,        int y,        unsigned char r,        unsigned char g,         unsigned char b){    unsigned char* ptr = rbuf.row_ptr(y) + x * 3;    *ptr++ = r;    *ptr++ = g;    *ptr++ = b;    return true;}int main(int argc, char* argv[]){    unsigned char* buffer = new unsigned char[WIDTH * HEIGHT * 3];    memset(buffer, 255, WIDTH * HEIGHT * 3);    agg::rendering_buffer rbuf(buffer,             WIDTH,             HEIGHT,             WIDTH * 3);    for(int i = 0; i < WIDTH; i ++)    {        setPixel(rbuf, i, 10, 255, 0, 0);    }        for(int i = 0; i < HEIGHT; i ++)    {        setPixel(rbuf, 120, i, 0, 255, 0);    }    writePpm(buffer, WIDTH, HEIGHT, "agg_test.ppm");    delete [] buffer;    return 0;}

OBJS = buffer.cpp #agg_win32_bmp.cpp agg_platform_support.cppCC = g++COMPILER_FLAGS = -w -m32LINKER_FLAGS = -lagg -lgdi32HEADERS = -I./agg/includeLIBS = -L./agg/lib OBJ_NAME = agg.exeall    :$(OBJS)    $(CC) $(OBJS) $(COMPILER_FLAGS) $(HEADERS) $(LIBS) $(LINKER_FLAGS) -o $(OBJ_NAME)clean:    rm -f *.o *.exe