dwrite: Initial GetGlyphRunOutline() implementation.

This commit is contained in:
Nikolay Sivov 2014-12-15 09:39:26 +03:00 committed by Alexandre Julliard
parent 88202b3d9b
commit 17a24679b4
4 changed files with 482 additions and 5 deletions

View file

@ -17,6 +17,7 @@
*/
#include "dwrite_2.h"
#include "d2d1.h"
#include "wine/debug.h"
#include "wine/unicode.h"
@ -125,12 +126,30 @@ extern HRESULT opentype_get_font_strings_from_id(const void*,DWRITE_INFORMATIONA
extern HRESULT bidi_computelevels(const WCHAR*,UINT32,UINT8,UINT8*,UINT8*) DECLSPEC_HIDDEN;
extern WCHAR bidi_get_mirrored_char(WCHAR) DECLSPEC_HIDDEN;
enum outline_point_tag {
OUTLINE_POINT_START = 1 << 0,
OUTLINE_POINT_END = 1 << 1,
OUTLINE_POINT_BEZIER = 1 << 2,
OUTLINE_POINT_LINE = 1 << 3
};
struct glyph_outline {
D2D1_POINT_2F *points;
UINT8 *tags;
UINT16 count;
FLOAT advance;
};
extern HRESULT new_glyph_outline(UINT32,struct glyph_outline**) DECLSPEC_HIDDEN;
extern void free_glyph_outline(struct glyph_outline*) DECLSPEC_HIDDEN;
/* FreeType integration */
extern BOOL init_freetype(void) DECLSPEC_HIDDEN;
extern void release_freetype(void) DECLSPEC_HIDDEN;
extern HRESULT freetype_get_design_glyph_metrics(IDWriteFontFace2*,UINT16,UINT16,DWRITE_GLYPH_METRICS*) DECLSPEC_HIDDEN;
extern void freetype_notify_cacheremove(IDWriteFontFace2*) DECLSPEC_HIDDEN;
extern BOOL freetype_is_monospaced(IDWriteFontFace2*) DECLSPEC_HIDDEN;
extern HRESULT freetype_get_glyph_outline(IDWriteFontFace2*,FLOAT,UINT16,struct glyph_outline**) DECLSPEC_HIDDEN;
/* Glyph shaping */
enum SCRIPT_JUSTIFY

View file

@ -421,14 +421,127 @@ static void WINAPI dwritefontface_ReleaseFontTable(IDWriteFontFace2 *iface, void
IDWriteFontFileStream_ReleaseFileFragment(This->streams[0], table_context);
}
HRESULT new_glyph_outline(UINT32 count, struct glyph_outline **ret)
{
struct glyph_outline *outline;
D2D1_POINT_2F *points;
UINT8 *tags;
*ret = NULL;
outline = heap_alloc(sizeof(*outline));
if (!outline)
return E_OUTOFMEMORY;
points = heap_alloc(count*sizeof(D2D1_POINT_2F));
tags = heap_alloc(count*sizeof(UINT8));
if (!points || !tags) {
heap_free(points);
heap_free(tags);
heap_free(outline);
return E_OUTOFMEMORY;
}
outline->points = points;
outline->tags = tags;
outline->count = count;
outline->advance = 0.0;
*ret = outline;
return S_OK;
}
void free_glyph_outline(struct glyph_outline *outline)
{
heap_free(outline->points);
heap_free(outline->tags);
heap_free(outline);
}
static void report_glyph_outline(const struct glyph_outline *outline, IDWriteGeometrySink *sink)
{
UINT16 p;
for (p = 0; p < outline->count; p++) {
if (outline->tags[p] & OUTLINE_POINT_START) {
ID2D1SimplifiedGeometrySink_BeginFigure(sink, outline->points[p], D2D1_FIGURE_BEGIN_FILLED);
continue;
}
if (outline->tags[p] & OUTLINE_POINT_LINE)
ID2D1SimplifiedGeometrySink_AddLines(sink, outline->points+p, 1);
else if (outline->tags[p] & OUTLINE_POINT_BEZIER) {
static const UINT16 segment_length = 3;
ID2D1SimplifiedGeometrySink_AddBeziers(sink, (D2D1_BEZIER_SEGMENT*)&outline->points[p], 1);
p += segment_length - 1;
}
if (outline->tags[p] & OUTLINE_POINT_END)
ID2D1SimplifiedGeometrySink_EndFigure(sink, D2D1_FIGURE_END_CLOSED);
}
}
static inline void translate_glyph_outline(struct glyph_outline *outline, FLOAT xoffset, FLOAT yoffset)
{
UINT16 p;
for (p = 0; p < outline->count; p++) {
outline->points[p].x += xoffset;
outline->points[p].y += yoffset;
}
}
static HRESULT WINAPI dwritefontface_GetGlyphRunOutline(IDWriteFontFace2 *iface, FLOAT emSize,
UINT16 const *glyph_indices, FLOAT const* glyph_advances, DWRITE_GLYPH_OFFSET const *glyph_offsets,
UINT32 glyph_count, BOOL is_sideways, BOOL is_rtl, IDWriteGeometrySink *geometrysink)
UINT16 const *glyphs, FLOAT const* advances, DWRITE_GLYPH_OFFSET const *offsets,
UINT32 count, BOOL is_sideways, BOOL is_rtl, IDWriteGeometrySink *sink)
{
struct dwrite_fontface *This = impl_from_IDWriteFontFace2(iface);
FIXME("(%p)->(%f %p %p %p %u %d %d %p): stub\n", This, emSize, glyph_indices, glyph_advances, glyph_offsets,
glyph_count, is_sideways, is_rtl, geometrysink);
return E_NOTIMPL;
FLOAT advance = 0.0;
HRESULT hr;
UINT32 g;
TRACE("(%p)->(%.2f %p %p %p %u %d %d %p)\n", This, emSize, glyphs, advances, offsets,
count, is_sideways, is_rtl, sink);
if (!glyphs || !sink)
return E_INVALIDARG;
if (is_sideways)
FIXME("sideways mode is not supported.\n");
for (g = 0; g < count; g++) {
FLOAT xoffset = 0.0, yoffset = 0.0;
struct glyph_outline *outline;
/* FIXME: cache outlines */
hr = freetype_get_glyph_outline(iface, emSize, glyphs[g], &outline);
if (FAILED(hr))
return hr;
/* glyph offsets act as current glyph adjustment */
if (offsets) {
xoffset += is_rtl ? -offsets[g].advanceOffset : offsets[g].advanceOffset;
yoffset -= offsets[g].ascenderOffset;
}
if (g == 0)
advance = is_rtl ? -outline->advance : 0.0;
xoffset += advance;
translate_glyph_outline(outline, xoffset, yoffset);
/* update advance to next glyph */
if (advances)
advance += is_rtl ? -advances[g] : advances[g];
else
advance += is_rtl ? -outline->advance : outline->advance;
report_glyph_outline(outline, sink);
free_glyph_outline(outline);
}
return S_OK;
}
static HRESULT WINAPI dwritefontface_GetRecommendedRenderingMode(IDWriteFontFace2 *iface, FLOAT emSize,

View file

@ -27,6 +27,7 @@
#include <ft2build.h>
#include FT_CACHE_H
#include FT_FREETYPE_H
#include FT_OUTLINE_H
#endif /* HAVE_FT2BUILD_H */
#include "windef.h"
@ -65,6 +66,7 @@ MAKE_FUNCPTR(FT_Init_FreeType);
MAKE_FUNCPTR(FT_Library_Version);
MAKE_FUNCPTR(FT_Load_Glyph);
MAKE_FUNCPTR(FT_New_Memory_Face);
MAKE_FUNCPTR(FT_Outline_Transform);
MAKE_FUNCPTR(FTC_Manager_New);
MAKE_FUNCPTR(FTC_Manager_Done);
MAKE_FUNCPTR(FTC_Manager_LookupFace);
@ -134,6 +136,7 @@ BOOL init_freetype(void)
LOAD_FUNCPTR(FT_Library_Version)
LOAD_FUNCPTR(FT_Load_Glyph)
LOAD_FUNCPTR(FT_New_Memory_Face)
LOAD_FUNCPTR(FT_Outline_Transform)
LOAD_FUNCPTR(FTC_Manager_New)
LOAD_FUNCPTR(FTC_Manager_Done)
LOAD_FUNCPTR(FTC_Manager_LookupFace)
@ -225,6 +228,153 @@ BOOL freetype_is_monospaced(IDWriteFontFace2 *fontface)
return is_monospaced;
}
static inline void ft_vector_to_d2d_point(const FT_Vector *v, D2D1_POINT_2F *p)
{
p->x = v->x / 64.0;
p->y = v->y / 64.0;
}
static HRESULT get_outline_data(const FT_Outline *outline, struct glyph_outline **ret)
{
short i, j, contour = 0;
D2D1_POINT_2F *points;
UINT16 count = 0;
UINT8 *tags;
HRESULT hr;
/* we need all curves in cubic format */
for (i = 0; i < outline->n_points; i++) {
/* control point */
if (!(outline->tags[i] & FT_Curve_Tag_On)) {
if (!(outline->tags[i] & FT_Curve_Tag_Cubic)) {
count++;
}
}
count++;
}
hr = new_glyph_outline(count, ret);
if (FAILED(hr))
return hr;
points = (*ret)->points;
tags = (*ret)->tags;
ft_vector_to_d2d_point(outline->points, points);
tags[0] = OUTLINE_POINT_START;
for (i = 1, j = 1; i < outline->n_points; i++, j++) {
/* mark start of new contour */
if (tags[j-1] & OUTLINE_POINT_END)
tags[j] = OUTLINE_POINT_START;
else
tags[j] = 0;
if (outline->tags[i] & FT_Curve_Tag_On) {
ft_vector_to_d2d_point(outline->points+i, points+j);
tags[j] |= OUTLINE_POINT_LINE;
}
else {
/* third order curve */
if (outline->tags[i] & FT_Curve_Tag_Cubic) {
/* store 3 points, advance 3 points */
ft_vector_to_d2d_point(outline->points+i, points+j);
ft_vector_to_d2d_point(outline->points+i+1, points+j+1);
ft_vector_to_d2d_point(outline->points+i+2, points+j+2);
i += 2;
}
else {
FT_Vector vec;
/* Convert the quadratic Beziers to cubic Beziers.
The parametric eqn for a cubic Bezier is, from PLRM:
r(t) = at^3 + bt^2 + ct + r0
with the control points:
r1 = r0 + c/3
r2 = r1 + (c + b)/3
r3 = r0 + c + b + a
A quadratic Bezier has the form:
p(t) = (1-t)^2 p0 + 2(1-t)t p1 + t^2 p2
So equating powers of t leads to:
r1 = 2/3 p1 + 1/3 p0
r2 = 2/3 p1 + 1/3 p2
and of course r0 = p0, r3 = p2
*/
/* r1 */
vec.x = 2 * outline->points[i].x + outline->points[i-1].x;
vec.y = 2 * outline->points[i].y + outline->points[i-1].y;
ft_vector_to_d2d_point(&vec, points+j);
points[j].x /= 3.0;
points[j].y /= 3.0;
/* r2 */
vec.x = 2 * outline->points[i].x + outline->points[i+1].x;
vec.y = 2 * outline->points[i].y + outline->points[i+1].y;
ft_vector_to_d2d_point(&vec, points+j+1);
points[j+1].x /= 3.0;
points[j+1].y /= 3.0;
/* r3 */
ft_vector_to_d2d_point(outline->points+i+1, points+j+2);
i++;
}
tags[j] = tags[j+1] = tags[j+2] = OUTLINE_POINT_BEZIER;
j += 2;
}
/* mark end point */
if (i < outline->n_points && outline->contours[contour] == i) {
tags[j] |= OUTLINE_POINT_END;
contour++;
}
}
return S_OK;
}
HRESULT freetype_get_glyph_outline(IDWriteFontFace2 *fontface, FLOAT emSize, UINT16 index, struct glyph_outline **ret)
{
FTC_ScalerRec scaler;
HRESULT hr = S_OK;
FT_Size size;
scaler.face_id = fontface;
scaler.width = emSize;
scaler.height = emSize;
scaler.pixel = 1;
scaler.x_res = 0;
scaler.y_res = 0;
EnterCriticalSection(&freetype_cs);
if (pFTC_Manager_LookupSize(cache_manager, &scaler, &size) == 0) {
if (pFT_Load_Glyph(size->face, index, FT_LOAD_DEFAULT) == 0) {
FT_Outline *outline = &size->face->glyph->outline;
FT_Matrix m;
m.xx = 1.0 * 0x10000;
m.xy = 0;
m.yx = 0;
m.yy = -1.0 * 0x10000; /* flip Y axis */
pFT_Outline_Transform(outline, &m);
hr = get_outline_data(outline, ret);
if (hr == S_OK)
(*ret)->advance = size->face->glyph->metrics.horiAdvance >> 6;
}
}
LeaveCriticalSection(&freetype_cs);
return hr;
}
#else /* HAVE_FREETYPE */
BOOL init_freetype(void)
@ -250,4 +400,10 @@ BOOL freetype_is_monospaced(IDWriteFontFace2 *fontface)
return FALSE;
}
HRESULT freetype_get_glyph_outline(IDWriteFontFace2 *fontface, FLOAT emSize, UINT16 index, struct glyph_outline **ret)
{
*ret = NULL;
return E_NOTIMPL;
}
#endif /* HAVE_FREETYPE */

View file

@ -23,6 +23,8 @@
#include "windows.h"
#include "dwrite_1.h"
#include "initguid.h"
#include "d2d1.h"
#include "wine/test.h"
@ -378,6 +380,86 @@ static const struct IDWriteFontFileLoaderVtbl resourcefontfileloadervtbl = {
static IDWriteFontFileLoader rloader = { &resourcefontfileloadervtbl };
static D2D1_POINT_2F g_startpoints[2];
static int g_startpoint_count;
static HRESULT WINAPI test_geometrysink_QueryInterface(ID2D1SimplifiedGeometrySink *iface, REFIID riid, void **ret)
{
if (IsEqualIID(riid, &IID_ID2D1SimplifiedGeometrySink) ||
IsEqualIID(riid, &IID_IUnknown))
{
*ret = iface;
ID2D1SimplifiedGeometrySink_AddRef(iface);
return S_OK;
}
*ret = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI test_geometrysink_AddRef(ID2D1SimplifiedGeometrySink *iface)
{
return 2;
}
static ULONG WINAPI test_geometrysink_Release(ID2D1SimplifiedGeometrySink *iface)
{
return 1;
}
static void WINAPI test_geometrysink_SetFillMode(ID2D1SimplifiedGeometrySink *iface, D2D1_FILL_MODE mode)
{
ok(mode == D2D1_FILL_MODE_WINDING, "fill mode %d\n", mode);
}
static void WINAPI test_geometrysink_SetSegmentFlags(ID2D1SimplifiedGeometrySink *iface, D2D1_PATH_SEGMENT flags)
{
ok(0, "unexpected SetSegmentFlags() - flags %d\n", flags);
}
static void WINAPI test_geometrysink_BeginFigure(ID2D1SimplifiedGeometrySink *iface,
D2D1_POINT_2F startPoint, D2D1_FIGURE_BEGIN figureBegin)
{
ok(figureBegin == D2D1_FIGURE_BEGIN_FILLED, "begin figure %d\n", figureBegin);
g_startpoints[g_startpoint_count++] = startPoint;
}
static void WINAPI test_geometrysink_AddLines(ID2D1SimplifiedGeometrySink *iface,
const D2D1_POINT_2F *points, UINT32 count)
{
}
static void WINAPI test_geometrysink_AddBeziers(ID2D1SimplifiedGeometrySink *iface,
const D2D1_BEZIER_SEGMENT *beziers, UINT32 count)
{
}
static void WINAPI test_geometrysink_EndFigure(ID2D1SimplifiedGeometrySink *iface, D2D1_FIGURE_END figureEnd)
{
ok(figureEnd == D2D1_FIGURE_END_CLOSED, "end figure %d\n", figureEnd);
}
static HRESULT WINAPI test_geometrysink_Close(ID2D1SimplifiedGeometrySink *iface)
{
ok(0, "unexpected Close()\n");
return E_NOTIMPL;
}
static const ID2D1SimplifiedGeometrySinkVtbl test_geometrysink_vtbl = {
test_geometrysink_QueryInterface,
test_geometrysink_AddRef,
test_geometrysink_Release,
test_geometrysink_SetFillMode,
test_geometrysink_SetSegmentFlags,
test_geometrysink_BeginFigure,
test_geometrysink_AddLines,
test_geometrysink_AddBeziers,
test_geometrysink_EndFigure,
test_geometrysink_Close
};
static ID2D1SimplifiedGeometrySink test_geomsink = { &test_geometrysink_vtbl };
static void test_CreateFontFromLOGFONT(void)
{
static const WCHAR tahomaspW[] = {'T','a','h','o','m','a',' ',0};
@ -2740,6 +2822,112 @@ static void test_GetDesignGlyphAdvances(void)
DeleteFileW(test_fontfile);
}
static void test_GetGlyphRunOutline(void)
{
DWRITE_GLYPH_OFFSET offsets[2];
IDWriteFactory *factory;
IDWriteFontFile *file;
IDWriteFontFace *face;
UINT32 codepoint;
FLOAT advances[2];
UINT16 glyphs[2];
HRESULT hr;
create_testfontfile(test_fontfile);
factory = create_factory();
hr = IDWriteFactory_CreateFontFileReference(factory, test_fontfile, NULL, &file);
ok(hr == S_OK, "got 0x%08x\n",hr);
hr = IDWriteFactory_CreateFontFace(factory, DWRITE_FONT_FACE_TYPE_TRUETYPE, 1, &file, 0, DWRITE_FONT_SIMULATIONS_NONE, &face);
ok(hr == S_OK, "got 0x%08x\n", hr);
IDWriteFontFile_Release(file);
codepoint = 'A';
glyphs[0] = 0;
hr = IDWriteFontFace_GetGlyphIndices(face, &codepoint, 1, glyphs);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(glyphs[0] > 0, "got %u\n", glyphs[0]);
glyphs[1] = glyphs[0];
hr = IDWriteFontFace_GetGlyphRunOutline(face, 2048.0, glyphs, advances, offsets, 1, FALSE, FALSE, NULL);
ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
hr = IDWriteFontFace_GetGlyphRunOutline(face, 2048.0, NULL, NULL, offsets, 1, FALSE, FALSE, &test_geomsink);
ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
advances[0] = 1.0;
advances[1] = 0.0;
offsets[0].advanceOffset = 1.0;
offsets[0].ascenderOffset = 1.0;
offsets[1].advanceOffset = 0.0;
offsets[1].ascenderOffset = 0.0;
/* default advances, no offsets */
memset(g_startpoints, 0, sizeof(g_startpoints));
g_startpoint_count = 0;
hr = IDWriteFontFace_GetGlyphRunOutline(face, 1024.0, glyphs, NULL, NULL, 2, FALSE, FALSE, &test_geomsink);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(g_startpoint_count == 2, "got %d\n", g_startpoint_count);
if (g_startpoint_count == 2) {
/* glyph advance of 500 is applied */
ok(g_startpoints[0].x == 229.5 && g_startpoints[0].y == -629.0, "0: got (%.2f,%.2f)\n", g_startpoints[0].x, g_startpoints[0].y);
ok(g_startpoints[1].x == 729.5 && g_startpoints[1].y == -629.0, "1: got (%.2f,%.2f)\n", g_startpoints[1].x, g_startpoints[1].y);
}
/* default advances, no offsets, RTL */
memset(g_startpoints, 0, sizeof(g_startpoints));
g_startpoint_count = 0;
hr = IDWriteFontFace_GetGlyphRunOutline(face, 1024.0, glyphs, NULL, NULL, 2, FALSE, TRUE, &test_geomsink);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(g_startpoint_count == 2, "got %d\n", g_startpoint_count);
if (g_startpoint_count == 2) {
/* advance is -500 now */
ok(g_startpoints[0].x == -270.5 && g_startpoints[0].y == -629.0, "0: got (%.2f,%.2f)\n", g_startpoints[0].x, g_startpoints[0].y);
ok(g_startpoints[1].x == -770.5 && g_startpoints[1].y == -629.0, "1: got (%.2f,%.2f)\n", g_startpoints[1].x, g_startpoints[1].y);
}
/* default advances, additional offsets */
memset(g_startpoints, 0, sizeof(g_startpoints));
g_startpoint_count = 0;
hr = IDWriteFontFace_GetGlyphRunOutline(face, 1024.0, glyphs, NULL, offsets, 2, FALSE, FALSE, &test_geomsink);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(g_startpoint_count == 2, "got %d\n", g_startpoint_count);
if (g_startpoint_count == 2) {
/* offsets applied to first contour */
ok(g_startpoints[0].x == 230.5 && g_startpoints[0].y == -630.0, "0: got (%.2f,%.2f)\n", g_startpoints[0].x, g_startpoints[0].y);
ok(g_startpoints[1].x == 729.5 && g_startpoints[1].y == -629.0, "1: got (%.2f,%.2f)\n", g_startpoints[1].x, g_startpoints[1].y);
}
/* default advances, additional offsets, RTL */
memset(g_startpoints, 0, sizeof(g_startpoints));
g_startpoint_count = 0;
hr = IDWriteFontFace_GetGlyphRunOutline(face, 1024.0, glyphs, NULL, offsets, 2, FALSE, TRUE, &test_geomsink);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(g_startpoint_count == 2, "got %d\n", g_startpoint_count);
if (g_startpoint_count == 2) {
ok(g_startpoints[0].x == -271.5 && g_startpoints[0].y == -630.0, "0: got (%.2f,%.2f)\n", g_startpoints[0].x, g_startpoints[0].y);
ok(g_startpoints[1].x == -770.5 && g_startpoints[1].y == -629.0, "1: got (%.2f,%.2f)\n", g_startpoints[1].x, g_startpoints[1].y);
}
/* custom advances and offsets, offset turns total advance value to zero */
memset(g_startpoints, 0, sizeof(g_startpoints));
g_startpoint_count = 0;
hr = IDWriteFontFace_GetGlyphRunOutline(face, 1024.0, glyphs, advances, offsets, 2, FALSE, FALSE, &test_geomsink);
ok(hr == S_OK, "got 0x%08x\n", hr);
ok(g_startpoint_count == 2, "got %d\n", g_startpoint_count);
if (g_startpoint_count == 2) {
ok(g_startpoints[0].x == 230.5 && g_startpoints[0].y == -630.0, "0: got (%.2f,%.2f)\n", g_startpoints[0].x, g_startpoints[0].y);
ok(g_startpoints[1].x == 230.5 && g_startpoints[1].y == -629.0, "1: got (%.2f,%.2f)\n", g_startpoints[1].x, g_startpoints[1].y);
}
IDWriteFontFace_Release(face);
IDWriteFactory_Release(factory);
DeleteFileW(test_fontfile);
}
START_TEST(font)
{
IDWriteFactory *factory;
@ -2776,6 +2964,7 @@ START_TEST(font)
test_GetDesignGlyphMetrics();
test_GetDesignGlyphAdvances();
test_IsMonospacedFont();
test_GetGlyphRunOutline();
IDWriteFactory_Release(factory);
}