//------------------------------------------------------------------------ void pixel_map::create(unsigned width, unsigned height, unsigned clear_val) { destroy(); if(width == 0) width = 1; if(height == 0) height = 1; unsigned row_len = calc_row_len(width, m_bpp); unsigned img_size = row_len * height; m_buf = new unsigned char[img_size]; if(clear_val <= 255) { memset(m_buf, clear_val, img_size); } m_rbuf_window.attach(m_buf, width, height, row_len); if (m_format != m_sys_format) { row_len = calc_row_len(width, m_sys_bpp); img_size = row_len*height; m_buf2 = new unsigned char[img_size]; if (clear_val <= 255) { memset(m_buf2, clear_val, img_size); } m_rbuf_window2.attach(m_buf2, width, height, row_len); } }
//static //------------------------------------------------------------------------ BITMAPINFO* pixel_map::create_bitmap_info(unsigned width, unsigned height, unsigned bits_per_pixel) { unsigned line_len = calc_row_len(width, bits_per_pixel); unsigned img_size = line_len * height; unsigned rgb_size = calc_palette_size(0, bits_per_pixel) * sizeof(RGBQUAD); unsigned full_size = sizeof(BITMAPINFOHEADER) + rgb_size + img_size; BITMAPINFO *bmp = (BITMAPINFO *) new unsigned char[full_size]; bmp->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmp->bmiHeader.biWidth = width; bmp->bmiHeader.biHeight = height; bmp->bmiHeader.biPlanes = 1; bmp->bmiHeader.biBitCount = (unsigned short)bits_per_pixel; bmp->bmiHeader.biCompression = 0; bmp->bmiHeader.biSizeImage = img_size; bmp->bmiHeader.biXPelsPerMeter = 0; bmp->bmiHeader.biYPelsPerMeter = 0; bmp->bmiHeader.biClrUsed = 0; bmp->bmiHeader.biClrImportant = 0; return bmp; }
//private //------------------------------------------------------------------------ void pixel_map::create_from_bmp(BITMAPINFO *bmp) { if(bmp) { m_img_size = calc_row_len(bmp->bmiHeader.biWidth, bmp->bmiHeader.biBitCount) * bmp->bmiHeader.biHeight; m_full_size = calc_full_size(bmp); m_bmp = bmp; m_buf = calc_img_ptr(bmp); } }
//private //------------------------------------------------------------------------ HBITMAP pixel_map::create_dib_section_from_args(HDC h_dc, unsigned width, unsigned height, unsigned bits_per_pixel) { unsigned line_len = calc_row_len(width, bits_per_pixel); unsigned img_size = line_len * height; unsigned rgb_size = calc_palette_size(0, bits_per_pixel) * sizeof(RGBQUAD); unsigned full_size = sizeof(BITMAPINFOHEADER) + rgb_size; BITMAPINFO *bmp = (BITMAPINFO *) new unsigned char[full_size]; bmp->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmp->bmiHeader.biWidth = width; bmp->bmiHeader.biHeight = height; bmp->bmiHeader.biPlanes = 1; bmp->bmiHeader.biBitCount = (unsigned short)bits_per_pixel; bmp->bmiHeader.biCompression = 0; bmp->bmiHeader.biSizeImage = img_size; bmp->bmiHeader.biXPelsPerMeter = 0; bmp->bmiHeader.biYPelsPerMeter = 0; bmp->bmiHeader.biClrUsed = 0; bmp->bmiHeader.biClrImportant = 0; void* img_ptr = 0; HBITMAP h_bitmap = ::CreateDIBSection(h_dc, bmp, DIB_RGB_COLORS, &img_ptr, NULL, 0); if(img_ptr) { m_img_size = calc_row_len(width, bits_per_pixel) * height; m_full_size = 0; m_bmp = bmp; m_buf = (unsigned char *) img_ptr; } return h_bitmap; }
//------------------------------------------------------------------------ void pixel_map::create(unsigned width, unsigned height, org_e org, unsigned clear_val) { destroy(); if(width == 0) width = 1; if(height == 0) height = 1; m_bpp = org; Rect r; int row_bytes = calc_row_len (width, m_bpp); MacSetRect(&r, 0, 0, width, height); m_buf = new unsigned char[m_img_size = row_bytes * height]; // The Quicktime version for creating GWorlds is more flexible than the classical function. QTNewGWorldFromPtr (&m_pmap, m_bpp, &r, nil, nil, 0, m_buf, row_bytes); // create_gray_scale_palette(m_pmap); I didn't care about gray scale palettes so far. if(clear_val <= 255) { memset(m_buf, clear_val, m_img_size); } }
//------------------------------------------------------------------------ int pixel_map::stride() const { return calc_row_len(m_bmp->bmiHeader.biWidth, m_bmp->bmiHeader.biBitCount); }
void Win32Window::drawImageGray(unsigned char *buffer, int width, int height, int x, int y) { //TODO //create buffer unsigned char *tmpBuf = malloc(width * height); for (int i = 0; i < ; ++i) { } //create paired BITMAP { unsigned line_len = calc_row_len(width, bits_per_pixel); unsigned img_size = line_len * height; unsigned rgb_size = calc_palette_size(0, bits_per_pixel) * sizeof(RGBQUAD); unsigned full_size = sizeof(BITMAPINFOHEADER) + rgb_size + img_size; BITMAPINFO *bmp = (BITMAPINFO *) new unsigned char[full_size]; bmp->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmp->bmiHeader.biWidth = width; bmp->bmiHeader.biHeight = height; bmp->bmiHeader.biPlanes = 1; bmp->bmiHeader.biBitCount = (unsigned short)bits_per_pixel; bmp->bmiHeader.biCompression = 0; bmp->bmiHeader.biSizeImage = img_size; bmp->bmiHeader.biXPelsPerMeter = 0; bmp->bmiHeader.biYPelsPerMeter = 0; bmp->bmiHeader.biClrUsed = 0; bmp->bmiHeader.biClrImportant = 0; } { m_img_size = calc_row_len(bmp->bmiHeader.biWidth, bmp->bmiHeader.biBitCount) * bmp->bmiHeader.biHeight; m_full_size = calc_full_size(bmp); m_bmp = bmp; m_buf = calc_img_ptr(bmp); } ::SetDIBitsToDevice( hDc, // handle to device context dvc_x, // x-coordinate of upper-left corner of dvc_y, // y-coordinate of upper-left corner of dvc_width, // source rectangle width dvc_height, // source rectangle height bmp_x, // x-coordinate of lower-left corner of bmp_y, // y-coordinate of lower-left corner of 0, // first scan line in array bmp_height, // number of scan lines m_buf, // address of array with DIB bits m_bmp, // address of structure BITMAPINFO DIB_RGB_COLORS // RGB or palette indexes ); free tmpBuf; }
int pixel_map::stride() { return calc_row_len(width(), m_bpp); }
//------------------------------------------------------------------------ int pixel_map::row_bytes() const { if(m_pmap == nil) return 0; PixMapHandle pm = GetGWorldPixMap (m_pmap); return calc_row_len(width(), GetPixDepth(pm)); }