ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

dwrite: Implement DrawGlyphRun().

This commit is contained in:
Nikolay Sivov 2015-07-31 01:30:50 +03:00 committed by Alexandre Julliard
parent e08b77b0a9
commit 44c301c584
1 changed files with 154 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

171
dlls/dwrite/gdiinterop.c
View File

@ -1,6 +1,7 @@
/*
* GDI Interop
*
* Copyright 2011 Huw Davies
* Copyright 2012, 2014 Nikolay Sivov for CodeWeavers
*
* This library is free software; you can redistribute it and/or
@ -36,17 +37,30 @@ struct gdiinterop {
IDWriteFactory2 *factory;
};
struct dib_data {
DWORD *ptr;
int stride;
int width;
};
struct rendertarget {
IDWriteBitmapRenderTarget1 IDWriteBitmapRenderTarget1_iface;
LONG ref;
IDWriteFactory *factory;
DWRITE_TEXT_ANTIALIAS_MODE antialiasmode;
FLOAT pixels_per_dip;
FLOAT ppdip;
DWRITE_MATRIX m;
SIZE size;
HDC hdc;
struct dib_data dib;
};
static inline int get_dib_stride(int width, int bpp)
{
return ((width * bpp + 31) >> 3) & ~3;
}
static HRESULT create_target_dibsection(struct rendertarget *target, UINT32 width, UINT32 height)
{
char bmibuf[FIELD_OFFSET(BITMAPINFO, bmiColors[256])];
@ -64,9 +78,17 @@ static HRESULT create_target_dibsection(struct rendertarget *target, UINT32 widt
bmi->bmiHeader.biPlanes = 1;
bmi->bmiHeader.biCompression = BI_RGB;
hbm = CreateDIBSection(target->hdc, bmi, DIB_RGB_COLORS, NULL, NULL, 0);
if (!hbm)
hbm = CreateDIBSection(target->hdc, bmi, DIB_RGB_COLORS, (void**)&target->dib.ptr, NULL, 0);
if (!hbm) {
hbm = CreateBitmap(1, 1, 1, 1, NULL);
target->dib.ptr = NULL;
target->dib.stride = 0;
target->dib.width = 0;
}
else {
target->dib.stride = get_dib_stride(width, 32);
target->dib.width = width;
}
DeleteObject(SelectObject(target->hdc, hbm));
return S_OK;
@ -119,6 +141,7 @@ static ULONG WINAPI rendertarget_Release(IDWriteBitmapRenderTarget1 *iface)
if (!ref)
{
IDWriteFactory_Release(This->factory);
DeleteDC(This->hdc);
heap_free(This);
}
@ -126,15 +149,127 @@ static ULONG WINAPI rendertarget_Release(IDWriteBitmapRenderTarget1 *iface)
return ref;
}
static inline DWORD *get_pixel_ptr_32(struct dib_data *dib, int x, int y)
{
return (DWORD *)((BYTE*)dib->ptr + y * dib->stride + x * 4);
}
static void blit_8(struct dib_data *dib, const BYTE *src, const RECT *rect, DWORD text_pixel)
{
DWORD *dst_ptr = get_pixel_ptr_32(dib, rect->left, rect->top);
int x, y, src_width = rect->right - rect->left;
for (y = rect->top; y < rect->bottom; y++) {
for (x = 0; x < src_width; x++) {
if (src[x] < DWRITE_ALPHA_MAX) continue;
dst_ptr[x] = text_pixel;
}
src += src_width;
dst_ptr += dib->stride / 4;
}
}
static inline BYTE blend_color(BYTE dst, BYTE src, BYTE alpha)
{
return (src * alpha + dst * (255 - alpha) + 127) / 255;
}
static inline DWORD blend_subpixel(BYTE r, BYTE g, BYTE b, DWORD text, const BYTE *alpha)
{
return blend_color(r, text >> 16, alpha[0]) << 16 |
blend_color(g, text >> 8, alpha[1]) << 8 |
blend_color(b, text, alpha[2]);
}
static void blit_subpixel_888(struct dib_data *dib, int dib_width, const BYTE *src,
const RECT *rect, DWORD text_pixel)
{
DWORD *dst_ptr = get_pixel_ptr_32(dib, rect->left, rect->top);
int x, y, src_width = rect->right - rect->left;
for (y = rect->top; y < rect->bottom; y++) {
for (x = 0; x < src_width; x++) {
if (src[3*x] == 0 && src[3*x+1] == 0 && src[3*x+2] == 0) continue;
dst_ptr[x] = blend_subpixel(dst_ptr[x] >> 16, dst_ptr[x] >> 8, dst_ptr[x], text_pixel, &src[3*x]);
}
dst_ptr += dib->stride / 4;
src += src_width * 3;
}
}
static HRESULT WINAPI rendertarget_DrawGlyphRun(IDWriteBitmapRenderTarget1 *iface,
FLOAT baselineOriginX, FLOAT baselineOriginY, DWRITE_MEASURING_MODE measuring_mode,
DWRITE_GLYPH_RUN const* glyph_run, IDWriteRenderingParams* params, COLORREF textColor,
RECT *blackbox_rect)
FLOAT originX, FLOAT originY, DWRITE_MEASURING_MODE measuring_mode,
DWRITE_GLYPH_RUN const *run, IDWriteRenderingParams *params, COLORREF color,
RECT *bbox_ret)
{
struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
FIXME("(%p)->(%f %f %d %p %p 0x%08x %p): stub\n", This, baselineOriginX, baselineOriginY,
measuring_mode, glyph_run, params, textColor, blackbox_rect);
return E_NOTIMPL;
IDWriteGlyphRunAnalysis *analysis;
DWRITE_RENDERING_MODE rendermode;
DWRITE_TEXTURE_TYPE texturetype;
RECT target, bounds;
HRESULT hr;
TRACE("(%p)->(%.2f %.2f %d %p %p 0x%08x %p)\n", This, originX, originY,
measuring_mode, run, params, color, bbox_ret);
if (!This->dib.ptr)
return S_OK;
hr = IDWriteFontFace_GetRecommendedRenderingMode(run->fontFace, run->fontEmSize,
This->ppdip, measuring_mode, params, &rendermode);
if (FAILED(hr))
return hr;
/* FIXME: outline mode rendering is not supported for this target yet */
if (rendermode == DWRITE_RENDERING_MODE_OUTLINE)
rendermode = DWRITE_RENDERING_MODE_ALIASED;
hr = IDWriteFactory_CreateGlyphRunAnalysis(This->factory,
run, This->ppdip, &This->m, rendermode, measuring_mode,
originX, originY, &analysis);
if (FAILED(hr)) {
WARN("failed to create analysis instance, 0x%08x\n", hr);
return hr;
}
SetRectEmpty(&bounds);
texturetype = DWRITE_TEXTURE_ALIASED_1x1;
hr = IDWriteGlyphRunAnalysis_GetAlphaTextureBounds(analysis, DWRITE_TEXTURE_ALIASED_1x1, &bounds);
if (FAILED(hr) || IsRectEmpty(&bounds)) {
hr = IDWriteGlyphRunAnalysis_GetAlphaTextureBounds(analysis, DWRITE_TEXTURE_CLEARTYPE_3x1, &bounds);
texturetype = DWRITE_TEXTURE_CLEARTYPE_3x1;
}
target.left = target.top = 0;
target.right = This->size.cx;
target.bottom = This->size.cy;
SetRectEmpty(bbox_ret);
if (IntersectRect(&target, &target, &bounds)) {
UINT32 size = (target.right - target.left) * (target.bottom - target.top);
BYTE *bitmap;
if (texturetype == DWRITE_TEXTURE_CLEARTYPE_3x1)
size *= 3;
bitmap = heap_alloc_zero(size);
hr = IDWriteGlyphRunAnalysis_CreateAlphaTexture(analysis, texturetype, &target, bitmap, size);
if (hr == S_OK) {
/* blit to target dib */
if (texturetype == DWRITE_TEXTURE_ALIASED_1x1)
blit_8(&This->dib, bitmap, &target, color);
else
blit_subpixel_888(&This->dib, This->size.cx, bitmap, &target, color);
*bbox_ret = target;
}
heap_free(bitmap);
}
IDWriteGlyphRunAnalysis_Release(analysis);
return S_OK;
}
static HDC WINAPI rendertarget_GetMemoryDC(IDWriteBitmapRenderTarget1 *iface)
@ -148,19 +283,19 @@ static FLOAT WINAPI rendertarget_GetPixelsPerDip(IDWriteBitmapRenderTarget1 *ifa
{
struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
TRACE("(%p)\n", This);
return This->pixels_per_dip;
return This->ppdip;
}
static HRESULT WINAPI rendertarget_SetPixelsPerDip(IDWriteBitmapRenderTarget1 *iface, FLOAT pixels_per_dip)
static HRESULT WINAPI rendertarget_SetPixelsPerDip(IDWriteBitmapRenderTarget1 *iface, FLOAT ppdip)
{
struct rendertarget *This = impl_from_IDWriteBitmapRenderTarget1(iface);
TRACE("(%p)->(%.2f)\n", This, pixels_per_dip);
TRACE("(%p)->(%.2f)\n", This, ppdip);
if (pixels_per_dip <= 0.0)
if (ppdip <= 0.0)
return E_INVALIDARG;
This->pixels_per_dip = pixels_per_dip;
This->ppdip = ppdip;
return S_OK;
}
@ -241,7 +376,7 @@ static const IDWriteBitmapRenderTarget1Vtbl rendertargetvtbl = {
rendertarget_SetTextAntialiasMode
};
static HRESULT create_rendertarget(HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **ret)
static HRESULT create_rendertarget(IDWriteFactory *factory, HDC hdc, UINT32 width, UINT32 height, IDWriteBitmapRenderTarget **ret)
{
struct rendertarget *target;
HRESULT hr;
@ -262,8 +397,10 @@ static HRESULT create_rendertarget(HDC hdc, UINT32 width, UINT32 height, IDWrite
}
target->m = identity;
target->pixels_per_dip = 1.0;
target->ppdip = 1.0;
target->antialiasmode = DWRITE_TEXT_ANTIALIAS_MODE_CLEARTYPE;
target->factory = factory;
IDWriteFactory_AddRef(factory);
*ret = (IDWriteBitmapRenderTarget*)&target->IDWriteBitmapRenderTarget1_iface;
@ -501,7 +638,7 @@ static HRESULT WINAPI gdiinterop_CreateBitmapRenderTarget(IDWriteGdiInterop *ifa
{
struct gdiinterop *This = impl_from_IDWriteGdiInterop(iface);
TRACE("(%p)->(%p %u %u %p)\n", This, hdc, width, height, target);
return create_rendertarget(hdc, width, height, target);
return create_rendertarget((IDWriteFactory*)This->factory, hdc, width, height, target);
}
static const struct IDWriteGdiInteropVtbl gdiinteropvtbl = {