+#if wxUSE_IMAGE
+#ifdef __WXGTK3__
+wxBitmap::wxBitmap(const wxImage& image, int depth)
+{
+ wxCHECK_RET(image.IsOk(), "invalid image");
+
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ const guchar* alpha = image.GetAlpha();
+ if (depth < 0)
+ depth = alpha ? 32 : 24;
+ else if (depth != 1 && depth != 32)
+ depth = 24;
+ wxBitmapRefData* bmpData = new wxBitmapRefData(w, h, depth);
+ m_refData = bmpData;
+ GdkPixbuf* pixbuf_dst = gdk_pixbuf_new(GDK_COLORSPACE_RGB, depth == 32, 8, w, h);
+ bmpData->m_pixbufNoMask = pixbuf_dst;
+ wxASSERT(bmpData->m_bpp == 32 || !gdk_pixbuf_get_has_alpha(bmpData->m_pixbufNoMask));
+ const guchar* src = image.GetData();
+
+ guchar* dst = gdk_pixbuf_get_pixels(pixbuf_dst);
+ const int dstStride = gdk_pixbuf_get_rowstride(pixbuf_dst);
+ CopyImageData(dst, gdk_pixbuf_get_n_channels(pixbuf_dst), dstStride, src, 3, 3 * w, w, h);
+
+ if (depth == 32 && alpha)
+ {
+ for (int j = 0; j < h; j++, dst += dstStride)
+ for (int i = 0; i < w; i++)
+ dst[i * 4 + 3] = *alpha++;
+ }
+ if (image.HasMask())
+ {
+ const guchar r = image.GetMaskRed();
+ const guchar g = image.GetMaskGreen();
+ const guchar b = image.GetMaskBlue();
+ cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_A8, w, h);
+ const int stride = cairo_image_surface_get_stride(surface);
+ dst = cairo_image_surface_get_data(surface);
+ memset(dst, 0xff, stride * h);
+ for (int j = 0; j < h; j++, dst += stride)
+ for (int i = 0; i < w; i++, src += 3)
+ if (src[0] == r && src[1] == g && src[2] == b)
+ dst[i] = 0;
+ cairo_surface_mark_dirty(surface);
+ bmpData->m_mask = new wxMask(surface);
+ }
+}
+#else
+wxBitmap::wxBitmap(const wxImage& image, int depth)
+{
+ wxCHECK_RET(image.IsOk(), "invalid image");
+
+ if (depth == 32 || (depth == -1 && image.HasAlpha()))
+ CreateFromImageAsPixbuf(image);
+ else
+ // otherwise create pixmap, if alpha is present it will be converted to mask
+ CreateFromImageAsPixmap(image, depth);
+}
+
+bool wxBitmap::CreateFromImageAsPixmap(const wxImage& image, int depth)
+{
+ const int w = image.GetWidth();
+ const int h = image.GetHeight();
+ if (depth == 1)
+ {
+ // create XBM format bitmap
+
+ // one bit per pixel, each row starts on a byte boundary
+ const size_t out_size = size_t((w + 7) / 8) * unsigned(h);
+ wxByte* out = new wxByte[out_size];
+ // set bits are black
+ memset(out, 0xff, out_size);
+ const wxByte* in = image.GetData();
+ unsigned bit_index = 0;
+ for (int y = 0; y < h; y++)
+ {
+ for (int x = 0; x < w; x++, in += 3, bit_index++)
+ if (in[0] == 255 && in[1] == 255 && in[2] == 255)
+ out[bit_index >> 3] ^= 1 << (bit_index & 7);
+ // move index to next byte boundary
+ bit_index = (bit_index + 7) & ~7u;
+ }
+ SetPixmap(gdk_bitmap_create_from_data(wxGetRootWindow()->window, (char*)out, w, h));
+ delete[] out;
+
+ if (!M_BMPDATA) // SetPixmap may have failed
+ return false;
+ }
+ else
projects / wxWidgets.git / blobdiff