HRESULT SaveBitmap2(bitmap_argb32 &bitmap, const WCHAR *filename)
{
HRESULT result;
// Convert the bitmap into a form we understand and save it
std::unique_ptr<UINT32> pBitmap(new UINT32[bitmap.width() * bitmap.height()]);
for (int y = 0; y < bitmap.height(); y++)
{
UINT32* pRow = pBitmap.get() + (y * bitmap.width());
for (int x = 0; x < bitmap.width(); x++)
{
UINT32 pixel = bitmap.pix32(y, x);
pRow[x] = (pixel == 0xFFFFFFFF) ? rgb_t(0xFF, 0x00, 0x00, 0x00) : rgb_t(0xFF, 0xFF, 0xFF, 0xFF);
}
}
ComPtr<IWICImagingFactory> wicFactory;
HR_RETHR(CoCreateInstance(
CLSID_WICImagingFactory,
nullptr,
CLSCTX_INPROC_SERVER,
__uuidof(IWICImagingFactory),
(void**)&wicFactory));
// Save bitmap
ComPtr<IWICBitmap> bmp2 = nullptr;
wicFactory->CreateBitmapFromMemory(
bitmap.width(),
bitmap.height(),
GUID_WICPixelFormat32bppRGBA,
bitmap.width() * sizeof(UINT32),
bitmap.width() * bitmap.height() * sizeof(UINT32),
(BYTE*)pBitmap.get(),
&bmp2);
SaveBitmap(bmp2.Get(), GUID_WICPixelFormat32bppRGBA, filename);
return S_OK;
}
void ui_menu::render_triangle(bitmap_argb32 &dest, bitmap_argb32 &source, const rectangle &sbounds, void *param)
{
int halfwidth = dest.width() / 2;
int height = dest.height();
int x, y;
// start with all-transparent
dest.fill(rgb_t(0x00,0x00,0x00,0x00));
// render from the tip to the bottom
for (y = 0; y < height; y++)
{
int linewidth = (y * (halfwidth - 1) + (height / 2)) * 255 * 2 / height;
UINT32 *target = &dest.pix32(y, halfwidth);
// don't antialias if height < 12
if (dest.height() < 12)
{
int pixels = (linewidth + 254) / 255;
if (pixels % 2 == 0) pixels++;
linewidth = pixels * 255;
}
// loop while we still have data to generate
for (x = 0; linewidth > 0; x++)
{
int dalpha;
// first column we only consume one pixel
if (x == 0)
{
dalpha = MIN(0xff, linewidth);
target[x] = rgb_t(dalpha,0xff,0xff,0xff);
}
// remaining columns consume two pixels, one on each side
else
{
dalpha = MIN(0x1fe, linewidth);
target[x] = target[-x] = rgb_t(dalpha/2,0xff,0xff,0xff);
}
// account for the weight we consumed */
linewidth -= dalpha;
}
}
}
virtual bool get_bitmap(unicode_char chnum, bitmap_argb32 &bitmap, std::int32_t &width, std::int32_t &xoffs, std::int32_t &yoffs) override
{
const int MEM_ALIGN_CONST = 31;
const int BITMAP_PAD = 50;
HRESULT result;
UINT cbData;
BYTE* pixels = nullptr;
ComPtr<ID2D1BitmapRenderTarget> target;
ComPtr<ID2D1SolidColorBrush> pWhiteBrush;
ComPtr<IWICBitmap> wicBitmap;
ComPtr<IWICBitmapLock> lock;
ComPtr<IDWriteFontFace> face;
HR_RET0(m_font->CreateFontFace(face.GetAddressOf()));
// get the GDI metrics
DWRITE_FONT_METRICS gdi_metrics;
HR_RET0(face->GetGdiCompatibleMetrics(
m_fontEmHeightInDips,
1.0f,
nullptr,
&gdi_metrics));
FontDimensionFactory fdf(gdi_metrics.designUnitsPerEm, m_fontEmHeightInDips);
UINT32 tempChar = chnum;
UINT16 glyphIndex;
HR_RET0(face->GetGlyphIndicesW(&tempChar, 1, &glyphIndex));
// get the width of this character
DWRITE_GLYPH_METRICS glyph_metrics = { 0 };
HR_RET0(face->GetGdiCompatibleGlyphMetrics(
m_fontEmHeightInDips,
1.0f,
nullptr,
FALSE,
&glyphIndex,
1,
&glyph_metrics));
// The height is the ascent added to the descent
// By definition, the Em is equal to Cell Height minus Internal Leading (topSide bearing).
//auto cellheight = fdf.FromDesignUnit(gdi_metrics.ascent + gdi_metrics.descent + gdi_metrics.);
auto ascent = fdf.FromDesignUnit(gdi_metrics.ascent);
auto descent = fdf.FromDesignUnit(gdi_metrics.descent);
auto charHeight = ascent + descent;
auto abc = fdf.CreateAbcWidths(
glyph_metrics.advanceWidth,
glyph_metrics.leftSideBearing,
glyph_metrics.rightSideBearing);
width = abc.abcA().Dips() + abc.abcB().Dips() + abc.abcC().Dips();
// determine desired bitmap size
int bmwidth = (BITMAP_PAD + abc.abcA().Dips() + abc.abcB().Dips() + abc.abcC().Dips() + BITMAP_PAD + MEM_ALIGN_CONST) & ~MEM_ALIGN_CONST;
int bmheight = BITMAP_PAD + charHeight.Dips() + BITMAP_PAD;
// GUID_WICPixelFormat8bppAlpha is 8 bits per pixel
const REFWICPixelFormatGUID source_bitmap_wic_format = GUID_WICPixelFormat8bppAlpha;
const DXGI_FORMAT source_bitmap_dxgi_format = DXGI_FORMAT_A8_UNORM;
const D2D1_ALPHA_MODE source_bitmap_d2d_alpha_mode = D2D1_ALPHA_MODE_STRAIGHT;
// describe the bitmap we want
HR_RET0(m_wicFactory->CreateBitmap(
bmwidth,
bmheight,
source_bitmap_wic_format,
WICBitmapCacheOnLoad,
wicBitmap.GetAddressOf()));
D2D1_RENDER_TARGET_PROPERTIES targetProps;
targetProps = D2D1::RenderTargetProperties();
targetProps.pixelFormat = D2D1::PixelFormat(source_bitmap_dxgi_format, source_bitmap_d2d_alpha_mode);
// create a DIB to render to
HR_RET0(this->m_d2dfactory->CreateWicBitmapRenderTarget(
wicBitmap.Get(),
&targetProps,
reinterpret_cast<ID2D1RenderTarget**>(target.GetAddressOf())));
target->SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE_ALIASED);
// Create our brush
HR_RET0(target->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f), pWhiteBrush.GetAddressOf()));
// Signal the start of the frame
target->BeginDraw();
// clear the bitmap
// In the alpha mask, it will look like 0x00 per pixel
target->Clear(D2D1::ColorF(0.0f, 0.0f, 0.0f, 0.0f));
// now draw the character
DWRITE_GLYPH_RUN run = { nullptr };
DWRITE_GLYPH_OFFSET offsets;
offsets.advanceOffset = 0;
offsets.ascenderOffset = 0;
float advanceWidth = abc.advanceWidth().Dips();
run.fontEmSize = m_fontEmHeightInDips;
run.fontFace = face.Get();
run.glyphCount = 1;
run.glyphIndices = &glyphIndex;
run.glyphAdvances = &advanceWidth;
run.glyphOffsets = &offsets;
auto baseline_origin = D2D1::Point2F(BITMAP_PAD + abc.abcA().Dips() + 1, BITMAP_PAD + ascent.Dips());
target->DrawGlyphRun(
baseline_origin,
&run,
pWhiteBrush.Get(),
DWRITE_MEASURING_MODE_GDI_CLASSIC);
HR_RET0(target->EndDraw());
#ifdef DWRITE_DEBUGGING
// Save to file for debugging
SaveBitmap(wicBitmap.Get(), GUID_WICPixelFormatBlackWhite, L"C:\\temp\\ddraw_step1.bmp");
#endif
// characters are expected to be full-height
rectangle actbounds;
actbounds.min_y = BITMAP_PAD;
actbounds.max_y = BITMAP_PAD + charHeight.Dips() - 1;
// Lock the bitmap and get the data pointer
WICRect rect = { 0, 0, bmwidth, bmheight };
HR_RET0(wicBitmap->Lock(&rect, WICBitmapLockRead, lock.GetAddressOf()));
HR_RET0(lock->GetDataPointer(&cbData, static_cast<BYTE**>(&pixels)));
// determine the actual left of the character
for (actbounds.min_x = 0; actbounds.min_x < bmwidth; actbounds.min_x++)
{
BYTE *offs = pixels + actbounds.min_x;
UINT8 summary = 0;
for (int y = 0; y < bmheight; y++)
summary |= offs[y * bmwidth];
if (summary != 0)
{
break;
}
}
// determine the actual right of the character
// Start from the right edge, and move in until we find a pixel
for (actbounds.max_x = bmwidth - 1; actbounds.max_x >= 0; actbounds.max_x--)
{
BYTE *offs = pixels + actbounds.max_x;
UINT8 summary = 0;
// Go through the entire column and build a summary
for (int y = 0; y < bmheight; y++)
summary |= offs[y * bmwidth];
if (summary != 0)
{
break;
}
}
// allocate a new bitmap
if (actbounds.max_x >= actbounds.min_x && actbounds.max_y >= actbounds.min_y)
{
bitmap.allocate(actbounds.max_x + 1 - actbounds.min_x, actbounds.max_y + 1 - actbounds.min_y);
// copy the bits into it
for (int y = 0; y < bitmap.height(); y++)
{
UINT32 *dstrow = &bitmap.pix32(y);
UINT8 *srcrow = &pixels[(y + actbounds.min_y) * bmwidth];
for (int x = 0; x < bitmap.width(); x++)
{
int effx = x + actbounds.min_x;
dstrow[x] = rgb_t(srcrow[effx], 0xff, 0xff, 0xff);
}
}
// set the final offset values
xoffs = actbounds.min_x - (BITMAP_PAD + abc.abcA().Dips());
yoffs = actbounds.max_y - (BITMAP_PAD + ascent.Dips());
#ifdef DWRITE_DEBUGGING
SaveBitmap2(bitmap, L"C:\\temp\\dwrite_final.bmp");
#endif
}
BOOL success = bitmap.valid();
#ifdef DWRITE_DEBUGGING
osd_printf_debug(
"dwr: %s, c'%S' w%i x%i y%i asc%i dsc%i a%ib%ic%i\n",
success ? "Success" : "Error",
(WCHAR*)&chnum,
width,
xoffs,
yoffs,
ascent.Dips(),
descent.Dips(),
abc.abcA().Dips(),
abc.abcB().Dips(),
abc.abcC().Dips());
#endif
return success;
}
static bool bitmap_to_chars(bitmap_argb32 &bitmap, render_font &font)
{
// loop over rows
int rowstart = 0;
while (rowstart < bitmap.height())
{
// find the top of the row
for ( ; rowstart < bitmap.height(); rowstart++)
if (pixel_is_set(bitmap, rowstart, 0))
break;
if (rowstart >= bitmap.height())
break;
// find the bottom of the row
int rowend;
for (rowend = rowstart + 1; rowend < bitmap.height(); rowend++)
if (!pixel_is_set(bitmap, rowend, 0))
{
rowend--;
break;
}
// find the baseline
int baseline;
for (baseline = rowstart; baseline <= rowend; baseline++)
if (pixel_is_set(bitmap, baseline, 1))
break;
if (baseline > rowend)
{
fprintf(stderr, "No baseline found between rows %d-%d\n", rowstart, rowend);
break;
}
// set or confirm the height
if (font.height == 0)
{
font.height = rowend - rowstart + 1;
font.yoffs = baseline - rowend;
}
else
{
if (font.height != rowend - rowstart + 1)
{
fprintf(stderr, "Inconsistent font height at rows %d-%d\n", rowstart, rowend);
break;
}
if (font.yoffs != baseline - rowend)
{
fprintf(stderr, "Inconsistent baseline at rows %d-%d\n", rowstart, rowend);
break;
}
}
// decode the starting character
int chstart = 0;
for (int x = 0; x < 4; x++)
for (int y = 0; y < 4; y++)
chstart = (chstart << 1) | pixel_is_set(bitmap, rowstart + y, 2 + x);
// print info
// printf("Row %d-%d, baseline %d, character start %X\n", rowstart, rowend, baseline, chstart);
// scan the column to find characters
int colstart = 0;
while (colstart < bitmap.width())
{
render_font_char &ch = font.chars[chstart];
// find the start of the character
for ( ; colstart < bitmap.width(); colstart++)
if (pixel_is_set(bitmap, rowend + 2, colstart))
break;
if (colstart >= bitmap.width())
break;
// find the end of the character
int colend;
for (colend = colstart + 1; colend < bitmap.width(); colend++)
if (!pixel_is_set(bitmap, rowend + 2, colend))
{
colend--;
break;
}
// skip char which code is already registered
if (ch.width <= 0)
{
// print info
// printf(" Character %X - width = %d\n", chstart, colend - colstart + 1);
// allocate a bitmap
ch.bitmap = global_alloc(bitmap_argb32(colend - colstart + 1, font.height));
// plot the character
for (int y = rowstart; y <= rowend; y++)
for (int x = colstart; x <= colend; x++)
ch.bitmap->pix32(y - rowstart, x - colstart) = pixel_is_set(bitmap, y, x) ? 0xffffffff : 0x00000000;
// set the character parameters
ch.width = colend - colstart + 1;
ch.xoffs = 0;
ch.yoffs = font.yoffs;
ch.bmwidth = ch.bitmap->width();
ch.bmheight = ch.bitmap->height();
}
// next character
chstart++;
colstart = colend + 1;
}
// next row
rowstart = rowend + 1;
}
// return non-zero (TRUE) if we errored
return (rowstart < bitmap.height());
}
bool osd_font_windows::get_bitmap(unicode_char chnum, bitmap_argb32 &bitmap, INT32 &width, INT32 &xoffs, INT32 &yoffs)
{
// create a dummy DC to work with
HDC dummyDC = CreateCompatibleDC(NULL);
HGDIOBJ oldfont = SelectObject(dummyDC, m_font);
// get the text metrics
TEXTMETRIC metrics = { 0 };
GetTextMetrics(dummyDC, &metrics);
// get the width of this character
ABC abc;
if (!GetCharABCWidths(dummyDC, chnum, chnum, &abc))
{
abc.abcA = 0;
abc.abcC = 0;
GetCharWidth32(dummyDC, chnum, chnum, reinterpret_cast<LPINT>(&abc.abcB));
}
width = abc.abcA + abc.abcB + abc.abcC;
// determine desired bitmap size
int bmwidth = (50 + abc.abcA + abc.abcB + abc.abcC + 50 + 31) & ~31;
int bmheight = 50 + metrics.tmHeight + 50;
// describe the bitmap we want
BYTE bitmapinfodata[sizeof(BITMAPINFOHEADER)+2 * sizeof(RGBQUAD)] = { 0 };
BITMAPINFO &info = *reinterpret_cast<BITMAPINFO *>(bitmapinfodata);
info.bmiHeader.biSize = sizeof(info.bmiHeader);
info.bmiHeader.biWidth = bmwidth;
info.bmiHeader.biHeight = -bmheight;
info.bmiHeader.biPlanes = 1;
info.bmiHeader.biBitCount = 1;
info.bmiHeader.biCompression = BI_RGB;
info.bmiHeader.biSizeImage = 0;
info.bmiHeader.biXPelsPerMeter = GetDeviceCaps(dummyDC, HORZRES) / GetDeviceCaps(dummyDC, HORZSIZE);
info.bmiHeader.biYPelsPerMeter = GetDeviceCaps(dummyDC, VERTRES) / GetDeviceCaps(dummyDC, VERTSIZE);
info.bmiHeader.biClrUsed = 0;
info.bmiHeader.biClrImportant = 0;
RGBQUAD col1 = info.bmiColors[0];
RGBQUAD col2 = info.bmiColors[1];
col1.rgbBlue = col1.rgbGreen = col1.rgbRed = 0x00;
col2.rgbBlue = col2.rgbGreen = col2.rgbRed = 0xff;
// create a DIB to render to
BYTE *bits;
HBITMAP dib = CreateDIBSection(dummyDC, &info, DIB_RGB_COLORS, reinterpret_cast<VOID **>(&bits), NULL, 0);
if (dib)
{
HGDIOBJ oldbitmap = SelectObject(dummyDC, dib);
// clear the bitmap
int rowbytes = bmwidth / 8;
memset(bits, 0, rowbytes * bmheight);
// now draw the character
WCHAR tempchar = chnum;
SetTextColor(dummyDC, RGB(0xff, 0xff, 0xff));
SetBkColor(dummyDC, RGB(0x00, 0x00, 0x00));
ExtTextOutW(dummyDC, 50 + abc.abcA, 50, ETO_OPAQUE, NULL, &tempchar, 1, NULL);
// characters are expected to be full-height
rectangle actbounds;
actbounds.min_y = 50;
actbounds.max_y = 50 + metrics.tmHeight - 1;
// determine the actual left of the character
for (actbounds.min_x = 0; actbounds.min_x < rowbytes; actbounds.min_x++)
{
BYTE *offs = bits + actbounds.min_x;
UINT8 summary = 0;
for (int y = 0; y < bmheight; y++)
summary |= offs[y * rowbytes];
if (summary != 0)
{
actbounds.min_x *= 8;
if (!(summary & 0x80)) actbounds.min_x++;
if (!(summary & 0xc0)) actbounds.min_x++;
if (!(summary & 0xe0)) actbounds.min_x++;
if (!(summary & 0xf0)) actbounds.min_x++;
if (!(summary & 0xf8)) actbounds.min_x++;
if (!(summary & 0xfc)) actbounds.min_x++;
if (!(summary & 0xfe)) actbounds.min_x++;
break;
}
}
// determine the actual right of the character
for (actbounds.max_x = rowbytes - 1; actbounds.max_x >= 0; actbounds.max_x--)
{
BYTE *offs = bits + actbounds.max_x;
UINT8 summary = 0;
for (int y = 0; y < bmheight; y++)
summary |= offs[y * rowbytes];
if (summary != 0)
{
actbounds.max_x *= 8;
if (summary & 0x7f) actbounds.max_x++;
if (summary & 0x3f) actbounds.max_x++;
if (summary & 0x1f) actbounds.max_x++;
if (summary & 0x0f) actbounds.max_x++;
if (summary & 0x07) actbounds.max_x++;
if (summary & 0x03) actbounds.max_x++;
if (summary & 0x01) actbounds.max_x++;
break;
}
}
// allocate a new bitmap
if (actbounds.max_x >= actbounds.min_x && actbounds.max_y >= actbounds.min_y)
{
bitmap.allocate(actbounds.max_x + 1 - actbounds.min_x, actbounds.max_y + 1 - actbounds.min_y);
// copy the bits into it
for (int y = 0; y < bitmap.height(); y++)
{
UINT32 *dstrow = &bitmap.pix32(y);
UINT8 *srcrow = &bits[(y + actbounds.min_y) * rowbytes];
for (int x = 0; x < bitmap.width(); x++)
{
int effx = x + actbounds.min_x;
dstrow[x] = ((srcrow[effx / 8] << (effx % 8)) & 0x80) ? rgb_t(0xff, 0xff, 0xff, 0xff) : rgb_t(0x00, 0xff, 0xff, 0xff);
}
}
// set the final offset values
xoffs = actbounds.min_x - (50 + abc.abcA);
yoffs = actbounds.max_y - (50 + metrics.tmAscent);
}
// de-select the font and release the DC
SelectObject(dummyDC, oldbitmap);
DeleteObject(dib);
}
SelectObject(dummyDC, oldfont);
DeleteDC(dummyDC);
return bitmap.valid();
}