d3dx9: D3DXCreateText implementation for simple glyphs.
This commit is contained in:
Dylan Smith
Alexandre Julliard
parent
7a90e7a444
commit
3eee5b7476
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@ -5,6 +5,7 @@
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* Copyright (C) 2006 Ivan Gyurdiev
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* Copyright (C) 2009 David Adam
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* Copyright (C) 2010 Tony Wasserka
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* Copyright (C) 2011 Dylan Smith
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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@ -29,6 +30,7 @@
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#include "wingdi.h"
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#include "d3dx9.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "d3dx9_36_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(d3dx);
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@ -1506,20 +1508,803 @@ HRESULT WINAPI D3DXCreateTextA(LPDIRECT3DDEVICE9 device,
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LPD3DXMESH *mesh, LPD3DXBUFFER *adjacency,
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LPGLYPHMETRICSFLOAT glyphmetrics)
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{
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FIXME("(%p, %p, %s, %f, %f, %p, %p, %p): stub\n", device, hdc,
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HRESULT hr;
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int len;
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LPWSTR textW;
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TRACE("(%p, %p, %s, %f, %f, %p, %p, %p)\n", device, hdc,
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debugstr_a(text), deviation, extrusion, mesh, adjacency, glyphmetrics);
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if (!text)
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return D3DERR_INVALIDCALL;
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len = MultiByteToWideChar(CP_ACP, 0, text, -1, NULL, 0);
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textW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
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MultiByteToWideChar(CP_ACP, 0, text, -1, textW, len);
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hr = D3DXCreateTextW(device, hdc, textW, deviation, extrusion,
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mesh, adjacency, glyphmetrics);
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HeapFree(GetProcessHeap(), 0, textW);
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return hr;
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}
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enum pointtype {
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POINTTYPE_CURVE = 0,
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POINTTYPE_CORNER,
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POINTTYPE_CURVE_START,
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POINTTYPE_CURVE_END,
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POINTTYPE_CURVE_MIDDLE,
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};
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struct point2d
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{
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D3DXVECTOR2 pos;
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enum pointtype corner;
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};
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struct dynamic_array
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{
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int count, capacity;
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void *items;
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};
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/* is a dynamic_array */
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struct outline
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{
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int count, capacity;
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struct point2d *items;
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};
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/* is a dynamic_array */
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struct outline_array
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{
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int count, capacity;
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struct outline *items;
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};
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struct face_array
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{
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int count;
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face *items;
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};
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struct point2d_index
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{
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struct outline *outline;
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int vertex;
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};
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struct point2d_index_array
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{
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int count;
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struct point2d_index *items;
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};
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struct glyphinfo
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{
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struct outline_array outlines;
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struct face_array faces;
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struct point2d_index_array ordered_vertices;
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float offset_x;
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};
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static BOOL reserve(struct dynamic_array *array, int count, int itemsize)
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{
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if (count > array->capacity) {
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void *new_buffer;
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int new_capacity;
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if (array->items && array->capacity) {
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new_capacity = max(array->capacity * 2, count);
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new_buffer = HeapReAlloc(GetProcessHeap(), 0, array->items, new_capacity * itemsize);
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} else {
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new_capacity = max(16, count);
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new_buffer = HeapAlloc(GetProcessHeap(), 0, new_capacity * itemsize);
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}
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if (!new_buffer)
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return FALSE;
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array->items = new_buffer;
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array->capacity = new_capacity;
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}
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return TRUE;
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}
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static struct point2d *add_points(struct outline *array, int num)
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{
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struct point2d *item;
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if (!reserve((struct dynamic_array *)array, array->count + num, sizeof(array->items[0])))
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return NULL;
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item = &array->items[array->count];
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array->count += num;
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return item;
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}
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static struct outline *add_outline(struct outline_array *array)
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{
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struct outline *item;
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if (!reserve((struct dynamic_array *)array, array->count + 1, sizeof(array->items[0])))
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return NULL;
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item = &array->items[array->count++];
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ZeroMemory(item, sizeof(*item));
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return item;
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}
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/* assume fixed point numbers can be converted to float point in place */
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C_ASSERT(sizeof(FIXED) == sizeof(float));
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C_ASSERT(sizeof(POINTFX) == sizeof(D3DXVECTOR2));
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static inline D3DXVECTOR2 *convert_fixed_to_float(POINTFX *pt, int count, float emsquare)
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{
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D3DXVECTOR2 *ret = (D3DXVECTOR2*)pt;
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while (count--) {
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D3DXVECTOR2 *pt_flt = (D3DXVECTOR2*)pt;
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pt_flt->x = (pt->x.value + pt->x.fract / (float)0x10000) / emsquare;
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pt_flt->y = (pt->y.value + pt->y.fract / (float)0x10000) / emsquare;
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pt++;
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}
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return ret;
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}
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static HRESULT add_bezier_points(struct outline *outline, const D3DXVECTOR2 *p1,
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const D3DXVECTOR2 *p2, const D3DXVECTOR2 *p3,
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float max_deviation_sq)
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{
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D3DXVECTOR2 split1 = {0, 0}, split2 = {0, 0}, middle, vec;
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float deviation_sq;
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D3DXVec2Scale(&split1, D3DXVec2Add(&split1, p1, p2), 0.5f);
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D3DXVec2Scale(&split2, D3DXVec2Add(&split2, p2, p3), 0.5f);
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D3DXVec2Scale(&middle, D3DXVec2Add(&middle, &split1, &split2), 0.5f);
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deviation_sq = D3DXVec2LengthSq(D3DXVec2Subtract(&vec, &middle, p2));
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if (deviation_sq < max_deviation_sq) {
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struct point2d *pt = add_points(outline, 1);
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if (!pt) return E_OUTOFMEMORY;
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pt->pos = *p2;
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pt->corner = POINTTYPE_CURVE;
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/* the end point is omitted because the end line merges into the next segment of
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* the split bezier curve, and the end of the split bezier curve is added outside
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* this recursive function. */
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} else {
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HRESULT hr = add_bezier_points(outline, p1, &split1, &middle, max_deviation_sq);
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if (hr != S_OK) return hr;
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hr = add_bezier_points(outline, &middle, &split2, p3, max_deviation_sq);
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if (hr != S_OK) return hr;
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}
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return S_OK;
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}
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static inline BOOL is_direction_similar(D3DXVECTOR2 *dir1, D3DXVECTOR2 *dir2, float cos_theta)
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{
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/* dot product = cos(theta) */
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return D3DXVec2Dot(dir1, dir2) > cos_theta;
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}
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static inline D3DXVECTOR2 *unit_vec2(D3DXVECTOR2 *dir, const D3DXVECTOR2 *pt1, const D3DXVECTOR2 *pt2)
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{
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return D3DXVec2Normalize(D3DXVec2Subtract(dir, pt2, pt1), dir);
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}
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struct cos_table
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{
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float cos_half;
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float cos_45;
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float cos_90;
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};
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static BOOL attempt_line_merge(struct outline *outline,
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int pt_index,
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const D3DXVECTOR2 *nextpt,
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BOOL to_curve,
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const struct cos_table *table)
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{
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D3DXVECTOR2 curdir, lastdir;
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struct point2d *prevpt, *pt;
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BOOL ret = FALSE;
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pt = &outline->items[pt_index];
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pt_index = (pt_index - 1 + outline->count) % outline->count;
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prevpt = &outline->items[pt_index];
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if (to_curve)
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pt->corner = pt->corner != POINTTYPE_CORNER ? POINTTYPE_CURVE_MIDDLE : POINTTYPE_CURVE_START;
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if (outline->count < 2)
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return FALSE;
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/* remove last point if the next line continues the last line */
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unit_vec2(&lastdir, &prevpt->pos, &pt->pos);
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unit_vec2(&curdir, &pt->pos, nextpt);
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if (is_direction_similar(&lastdir, &curdir, table->cos_half))
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{
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outline->count--;
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if (pt->corner == POINTTYPE_CURVE_END)
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prevpt->corner = pt->corner;
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if (prevpt->corner == POINTTYPE_CURVE_END && to_curve)
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prevpt->corner = POINTTYPE_CURVE_MIDDLE;
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pt = prevpt;
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ret = TRUE;
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if (outline->count < 2)
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return ret;
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pt_index = (pt_index - 1 + outline->count) % outline->count;
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prevpt = &outline->items[pt_index];
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unit_vec2(&lastdir, &prevpt->pos, &pt->pos);
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unit_vec2(&curdir, &pt->pos, nextpt);
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}
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return ret;
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}
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static HRESULT create_outline(struct glyphinfo *glyph, void *raw_outline, int datasize,
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float max_deviation_sq, float emsquare, const struct cos_table *cos_table)
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{
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TTPOLYGONHEADER *header = (TTPOLYGONHEADER *)raw_outline;
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while ((char *)header < (char *)raw_outline + datasize)
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{
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TTPOLYCURVE *curve = (TTPOLYCURVE *)(header + 1);
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struct point2d *lastpt, *pt;
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D3DXVECTOR2 lastdir;
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D3DXVECTOR2 *pt_flt;
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int j;
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struct outline *outline = add_outline(&glyph->outlines);
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if (!outline)
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return E_OUTOFMEMORY;
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pt = add_points(outline, 1);
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if (!pt)
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return E_OUTOFMEMORY;
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pt_flt = convert_fixed_to_float(&header->pfxStart, 1, emsquare);
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pt->pos = *pt_flt;
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pt->corner = POINTTYPE_CORNER;
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if (header->dwType != TT_POLYGON_TYPE)
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FIXME("Unknown header type %d\n", header->dwType);
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while ((char *)curve < (char *)header + header->cb)
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{
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D3DXVECTOR2 bezier_start = outline->items[outline->count - 1].pos;
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BOOL to_curve = curve->wType != TT_PRIM_LINE && curve->cpfx > 1;
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if (!curve->cpfx) {
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curve = (TTPOLYCURVE *)&curve->apfx[curve->cpfx];
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continue;
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}
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pt_flt = convert_fixed_to_float(curve->apfx, curve->cpfx, emsquare);
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attempt_line_merge(outline, outline->count - 1, &pt_flt[0], to_curve, cos_table);
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if (to_curve)
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{
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HRESULT hr;
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int count = curve->cpfx;
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j = 0;
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while (count > 2)
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{
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D3DXVECTOR2 bezier_end;
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D3DXVec2Scale(&bezier_end, D3DXVec2Add(&bezier_end, &pt_flt[j], &pt_flt[j+1]), 0.5f);
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hr = add_bezier_points(outline, &bezier_start, &pt_flt[j], &bezier_end, max_deviation_sq);
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if (hr != S_OK)
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return hr;
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bezier_start = bezier_end;
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count--;
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j++;
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}
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hr = add_bezier_points(outline, &bezier_start, &pt_flt[j], &pt_flt[j+1], max_deviation_sq);
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if (hr != S_OK)
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return hr;
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pt = add_points(outline, 1);
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if (!pt)
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return E_OUTOFMEMORY;
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j++;
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pt->pos = pt_flt[j];
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pt->corner = POINTTYPE_CURVE_END;
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} else {
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pt = add_points(outline, curve->cpfx);
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if (!pt)
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return E_OUTOFMEMORY;
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for (j = 0; j < curve->cpfx; j++)
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{
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pt->pos = pt_flt[j];
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pt->corner = POINTTYPE_CORNER;
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pt++;
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}
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}
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curve = (TTPOLYCURVE *)&curve->apfx[curve->cpfx];
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}
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/* remove last point if the next line continues the last line */
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if (outline->count >= 3) {
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BOOL to_curve;
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lastpt = &outline->items[outline->count - 1];
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pt = &outline->items[0];
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if (pt->pos.x == lastpt->pos.x && pt->pos.y == lastpt->pos.y) {
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if (lastpt->corner == POINTTYPE_CURVE_END)
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{
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if (pt->corner == POINTTYPE_CURVE_START)
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pt->corner = POINTTYPE_CURVE_MIDDLE;
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else
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pt->corner = POINTTYPE_CURVE_END;
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}
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outline->count--;
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lastpt = &outline->items[outline->count - 1];
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} else {
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/* outline closed with a line from end to start point */
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attempt_line_merge(outline, outline->count - 1, &pt->pos, FALSE, cos_table);
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}
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lastpt = &outline->items[0];
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to_curve = lastpt->corner != POINTTYPE_CORNER && lastpt->corner != POINTTYPE_CURVE_END;
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if (lastpt->corner == POINTTYPE_CURVE_START)
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lastpt->corner = POINTTYPE_CORNER;
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pt = &outline->items[1];
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if (attempt_line_merge(outline, 0, &pt->pos, to_curve, cos_table))
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*lastpt = outline->items[outline->count];
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}
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lastpt = &outline->items[outline->count - 1];
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pt = &outline->items[0];
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unit_vec2(&lastdir, &lastpt->pos, &pt->pos);
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for (j = 0; j < outline->count; j++)
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{
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D3DXVECTOR2 curdir;
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lastpt = pt;
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pt = &outline->items[(j + 1) % outline->count];
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unit_vec2(&curdir, &lastpt->pos, &pt->pos);
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switch (lastpt->corner)
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{
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case POINTTYPE_CURVE_START:
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case POINTTYPE_CURVE_END:
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if (!is_direction_similar(&lastdir, &curdir, cos_table->cos_45))
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lastpt->corner = POINTTYPE_CORNER;
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break;
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case POINTTYPE_CURVE_MIDDLE:
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if (!is_direction_similar(&lastdir, &curdir, cos_table->cos_90))
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lastpt->corner = POINTTYPE_CORNER;
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else
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lastpt->corner = POINTTYPE_CURVE;
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break;
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default:
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break;
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}
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lastdir = curdir;
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}
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header = (TTPOLYGONHEADER *)((char *)header + header->cb);
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}
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return S_OK;
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}
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static D3DXVECTOR2 *get_indexed_point(struct point2d_index *pt_idx)
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{
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return &pt_idx->outline->items[pt_idx->vertex].pos;
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}
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static D3DXVECTOR2 *get_ordered_vertex(struct glyphinfo *glyph, WORD index)
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{
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return get_indexed_point(&glyph->ordered_vertices.items[index]);
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}
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static HRESULT triangulate(struct glyphinfo *glyph)
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{
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int nb_vertices = 0;
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int i;
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struct point2d_index *idx_ptr;
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for (i = 0; i < glyph->outlines.count; i++)
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nb_vertices += glyph->outlines.items[i].count;
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glyph->ordered_vertices.items = HeapAlloc(GetProcessHeap(), 0,
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nb_vertices * sizeof(*glyph->ordered_vertices.items));
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if (!glyph->ordered_vertices.items)
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return E_OUTOFMEMORY;
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idx_ptr = glyph->ordered_vertices.items;
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for (i = 0; i < glyph->outlines.count; i++)
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{
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struct outline *outline = &glyph->outlines.items[i];
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int j;
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idx_ptr->outline = outline;
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idx_ptr->vertex = 0;
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idx_ptr++;
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for (j = outline->count - 1; j > 0; j--)
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{
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idx_ptr->outline = outline;
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idx_ptr->vertex = j;
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idx_ptr++;
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}
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}
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glyph->ordered_vertices.count = nb_vertices;
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/* Native implementation seems to try to create a triangle fan from
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* the first outline point if the glyph only has one outline. */
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if (glyph->outlines.count == 1)
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{
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struct outline *outline = glyph->outlines.items;
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D3DXVECTOR2 *base = &outline->items[0].pos;
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D3DXVECTOR2 *last = &outline->items[1].pos;
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float ccw = 0;
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for (i = 2; i < outline->count; i++)
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{
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D3DXVECTOR2 *next = &outline->items[i].pos;
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D3DXVECTOR2 v1 = {0.0f, 0.0f};
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D3DXVECTOR2 v2 = {0.0f, 0.0f};
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D3DXVec2Subtract(&v1, base, last);
|
||||
D3DXVec2Subtract(&v2, last, next);
|
||||
ccw = D3DXVec2CCW(&v1, &v2);
|
||||
if (ccw > 0.0f)
|
||||
break;
|
||||
|
||||
last = next;
|
||||
}
|
||||
if (ccw <= 0)
|
||||
{
|
||||
glyph->faces.items = HeapAlloc(GetProcessHeap(), 0,
|
||||
(outline->count - 2) * sizeof(glyph->faces.items[0]));
|
||||
if (!glyph->faces.items)
|
||||
return E_OUTOFMEMORY;
|
||||
|
||||
glyph->faces.count = outline->count - 2;
|
||||
for (i = 0; i < glyph->faces.count; i++)
|
||||
{
|
||||
glyph->faces.items[i][0] = 0;
|
||||
glyph->faces.items[i][1] = i + 1;
|
||||
glyph->faces.items[i][2] = i + 2;
|
||||
}
|
||||
return S_OK;
|
||||
}
|
||||
}
|
||||
|
||||
FIXME("triangulation of complex glyphs not yet implemented for D3DXCreateText.\n");
|
||||
|
||||
return E_NOTIMPL;
|
||||
}
|
||||
|
||||
HRESULT WINAPI D3DXCreateTextW(LPDIRECT3DDEVICE9 device,
|
||||
HDC hdc, LPCWSTR text,
|
||||
FLOAT deviation, FLOAT extrusion,
|
||||
LPD3DXMESH *mesh, LPD3DXBUFFER *adjacency,
|
||||
LPD3DXMESH *mesh_ptr, LPD3DXBUFFER *adjacency,
|
||||
LPGLYPHMETRICSFLOAT glyphmetrics)
|
||||
{
|
||||
FIXME("(%p, %p, %s, %f, %f, %p, %p, %p): stub\n", device, hdc,
|
||||
debugstr_w(text), deviation, extrusion, mesh, adjacency, glyphmetrics);
|
||||
HRESULT hr;
|
||||
ID3DXMesh *mesh = NULL;
|
||||
DWORD nb_vertices, nb_faces;
|
||||
DWORD nb_front_faces, nb_corners, nb_outline_points;
|
||||
struct vertex *vertices = NULL;
|
||||
face *faces = NULL;
|
||||
int textlen = 0;
|
||||
float offset_x;
|
||||
LOGFONTW lf;
|
||||
OUTLINETEXTMETRICW otm;
|
||||
HFONT font = NULL, oldfont = NULL;
|
||||
const MAT2 identity = {{0, 1}, {0, 0}, {0, 0}, {0, 1}};
|
||||
void *raw_outline = NULL;
|
||||
int bufsize = 0;
|
||||
struct glyphinfo *glyphs = NULL;
|
||||
GLYPHMETRICS gm;
|
||||
int i;
|
||||
struct vertex *vertex_ptr;
|
||||
face *face_ptr;
|
||||
float max_deviation_sq;
|
||||
const struct cos_table cos_table = {
|
||||
cos(D3DXToRadian(0.5f)),
|
||||
cos(D3DXToRadian(45.0f)),
|
||||
cos(D3DXToRadian(90.0f)),
|
||||
};
|
||||
int f1, f2;
|
||||
|
||||
return E_NOTIMPL;
|
||||
TRACE("(%p, %p, %s, %f, %f, %p, %p, %p)\n", device, hdc,
|
||||
debugstr_w(text), deviation, extrusion, mesh_ptr, adjacency, glyphmetrics);
|
||||
|
||||
if (!device || !hdc || !text || !*text || deviation < 0.0f || extrusion < 0.0f || !mesh_ptr)
|
||||
return D3DERR_INVALIDCALL;
|
||||
|
||||
if (adjacency)
|
||||
{
|
||||
FIXME("Case of adjacency != NULL not implemented.\n");
|
||||
return E_NOTIMPL;
|
||||
}
|
||||
|
||||
if (!GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf) ||
|
||||
!GetOutlineTextMetricsW(hdc, sizeof(otm), &otm))
|
||||
{
|
||||
return D3DERR_INVALIDCALL;
|
||||
}
|
||||
|
||||
if (deviation == 0.0f)
|
||||
deviation = 1.0f / otm.otmEMSquare;
|
||||
max_deviation_sq = deviation * deviation;
|
||||
|
||||
lf.lfHeight = otm.otmEMSquare;
|
||||
lf.lfWidth = 0;
|
||||
font = CreateFontIndirectW(&lf);
|
||||
if (!font) {
|
||||
hr = E_OUTOFMEMORY;
|
||||
goto error;
|
||||
}
|
||||
oldfont = SelectObject(hdc, font);
|
||||
|
||||
textlen = strlenW(text);
|
||||
for (i = 0; i < textlen; i++)
|
||||
{
|
||||
int datasize = GetGlyphOutlineW(hdc, text[i], GGO_NATIVE, &gm, 0, NULL, &identity);
|
||||
if (datasize < 0)
|
||||
return D3DERR_INVALIDCALL;
|
||||
if (bufsize < datasize)
|
||||
bufsize = datasize;
|
||||
}
|
||||
if (!bufsize) { /* e.g. text == " " */
|
||||
hr = D3DERR_INVALIDCALL;
|
||||
goto error;
|
||||
}
|
||||
|
||||
glyphs = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, textlen * sizeof(*glyphs));
|
||||
raw_outline = HeapAlloc(GetProcessHeap(), 0, bufsize);
|
||||
if (!glyphs || !raw_outline) {
|
||||
hr = E_OUTOFMEMORY;
|
||||
goto error;
|
||||
}
|
||||
|
||||
offset_x = 0.0f;
|
||||
for (i = 0; i < textlen; i++)
|
||||
{
|
||||
/* get outline points from data returned from GetGlyphOutline */
|
||||
int datasize;
|
||||
|
||||
glyphs[i].offset_x = offset_x;
|
||||
|
||||
datasize = GetGlyphOutlineW(hdc, text[i], GGO_NATIVE, &gm, bufsize, raw_outline, &identity);
|
||||
hr = create_outline(&glyphs[i], raw_outline, datasize,
|
||||
max_deviation_sq, otm.otmEMSquare, &cos_table);
|
||||
if (hr != S_OK) goto error;
|
||||
|
||||
hr = triangulate(&glyphs[i]);
|
||||
if (hr != S_OK) goto error;
|
||||
|
||||
if (glyphmetrics)
|
||||
{
|
||||
glyphmetrics[i].gmfBlackBoxX = gm.gmBlackBoxX / (float)otm.otmEMSquare;
|
||||
glyphmetrics[i].gmfBlackBoxY = gm.gmBlackBoxY / (float)otm.otmEMSquare;
|
||||
glyphmetrics[i].gmfptGlyphOrigin.x = gm.gmptGlyphOrigin.x / (float)otm.otmEMSquare;
|
||||
glyphmetrics[i].gmfptGlyphOrigin.y = gm.gmptGlyphOrigin.y / (float)otm.otmEMSquare;
|
||||
glyphmetrics[i].gmfCellIncX = gm.gmCellIncX / (float)otm.otmEMSquare;
|
||||
glyphmetrics[i].gmfCellIncY = gm.gmCellIncY / (float)otm.otmEMSquare;
|
||||
}
|
||||
offset_x += gm.gmCellIncX / (float)otm.otmEMSquare;
|
||||
}
|
||||
|
||||
/* corner points need an extra vertex for the different side faces normals */
|
||||
nb_corners = 0;
|
||||
nb_outline_points = 0;
|
||||
nb_front_faces = 0;
|
||||
for (i = 0; i < textlen; i++)
|
||||
{
|
||||
int j;
|
||||
nb_outline_points += glyphs[i].ordered_vertices.count;
|
||||
nb_front_faces += glyphs[i].faces.count;
|
||||
for (j = 0; j < glyphs[i].outlines.count; j++)
|
||||
{
|
||||
int k;
|
||||
struct outline *outline = &glyphs[i].outlines.items[j];
|
||||
nb_corners++; /* first outline point always repeated as a corner */
|
||||
for (k = 1; k < outline->count; k++)
|
||||
if (outline->items[k].corner)
|
||||
nb_corners++;
|
||||
}
|
||||
}
|
||||
|
||||
nb_vertices = (nb_outline_points + nb_corners) * 2 + nb_outline_points * 2;
|
||||
nb_faces = nb_outline_points * 2 + nb_front_faces * 2;
|
||||
|
||||
|
||||
hr = D3DXCreateMeshFVF(nb_faces, nb_vertices, D3DXMESH_MANAGED,
|
||||
D3DFVF_XYZ | D3DFVF_NORMAL, device, &mesh);
|
||||
if (FAILED(hr))
|
||||
goto error;
|
||||
|
||||
hr = mesh->lpVtbl->LockVertexBuffer(mesh, D3DLOCK_DISCARD, (LPVOID *)&vertices);
|
||||
if (FAILED(hr))
|
||||
goto error;
|
||||
|
||||
hr = mesh->lpVtbl->LockIndexBuffer(mesh, D3DLOCK_DISCARD, (LPVOID *)&faces);
|
||||
if (FAILED(hr))
|
||||
goto error;
|
||||
|
||||
/* convert 2D vertices and faces into 3D mesh */
|
||||
vertex_ptr = vertices;
|
||||
face_ptr = faces;
|
||||
if (extrusion == 0.0f) {
|
||||
f1 = 1;
|
||||
f2 = 2;
|
||||
} else {
|
||||
f1 = 2;
|
||||
f2 = 1;
|
||||
}
|
||||
for (i = 0; i < textlen; i++)
|
||||
{
|
||||
int j;
|
||||
int count;
|
||||
struct vertex *back_vertices;
|
||||
face *back_faces;
|
||||
|
||||
/* side vertices and faces */
|
||||
for (j = 0; j < glyphs[i].outlines.count; j++)
|
||||
{
|
||||
struct vertex *outline_vertices = vertex_ptr;
|
||||
struct outline *outline = &glyphs[i].outlines.items[j];
|
||||
int k;
|
||||
struct point2d *prevpt = &outline->items[outline->count - 1];
|
||||
struct point2d *pt = &outline->items[0];
|
||||
|
||||
for (k = 1; k <= outline->count; k++)
|
||||
{
|
||||
struct vertex vtx;
|
||||
struct point2d *nextpt = &outline->items[k % outline->count];
|
||||
WORD vtx_idx = vertex_ptr - vertices;
|
||||
D3DXVECTOR2 vec;
|
||||
|
||||
if (pt->corner == POINTTYPE_CURVE_START)
|
||||
D3DXVec2Subtract(&vec, &pt->pos, &prevpt->pos);
|
||||
else if (pt->corner)
|
||||
D3DXVec2Subtract(&vec, &nextpt->pos, &pt->pos);
|
||||
else
|
||||
D3DXVec2Subtract(&vec, &nextpt->pos, &prevpt->pos);
|
||||
D3DXVec2Normalize(&vec, &vec);
|
||||
vtx.normal.x = -vec.y;
|
||||
vtx.normal.y = vec.x;
|
||||
vtx.normal.z = 0;
|
||||
|
||||
vtx.position.x = pt->pos.x + glyphs[i].offset_x;
|
||||
vtx.position.y = pt->pos.y;
|
||||
vtx.position.z = 0;
|
||||
*vertex_ptr++ = vtx;
|
||||
|
||||
vtx.position.z = -extrusion;
|
||||
*vertex_ptr++ = vtx;
|
||||
|
||||
vtx.position.x = nextpt->pos.x + glyphs[i].offset_x;
|
||||
vtx.position.y = nextpt->pos.y;
|
||||
if (pt->corner && nextpt->corner && nextpt->corner != POINTTYPE_CURVE_END) {
|
||||
vtx.position.z = -extrusion;
|
||||
*vertex_ptr++ = vtx;
|
||||
vtx.position.z = 0;
|
||||
*vertex_ptr++ = vtx;
|
||||
|
||||
(*face_ptr)[0] = vtx_idx;
|
||||
(*face_ptr)[1] = vtx_idx + 2;
|
||||
(*face_ptr)[2] = vtx_idx + 1;
|
||||
face_ptr++;
|
||||
|
||||
(*face_ptr)[0] = vtx_idx;
|
||||
(*face_ptr)[1] = vtx_idx + 3;
|
||||
(*face_ptr)[2] = vtx_idx + 2;
|
||||
face_ptr++;
|
||||
} else {
|
||||
if (nextpt->corner) {
|
||||
if (nextpt->corner == POINTTYPE_CURVE_END) {
|
||||
D3DXVECTOR2 *nextpt2 = &outline->items[(k + 1) % outline->count].pos;
|
||||
D3DXVec2Subtract(&vec, nextpt2, &nextpt->pos);
|
||||
} else {
|
||||
D3DXVec2Subtract(&vec, &nextpt->pos, &pt->pos);
|
||||
}
|
||||
D3DXVec2Normalize(&vec, &vec);
|
||||
vtx.normal.x = -vec.y;
|
||||
vtx.normal.y = vec.x;
|
||||
|
||||
vtx.position.z = 0;
|
||||
*vertex_ptr++ = vtx;
|
||||
vtx.position.z = -extrusion;
|
||||
*vertex_ptr++ = vtx;
|
||||
}
|
||||
|
||||
(*face_ptr)[0] = vtx_idx;
|
||||
(*face_ptr)[1] = vtx_idx + 3;
|
||||
(*face_ptr)[2] = vtx_idx + 1;
|
||||
face_ptr++;
|
||||
|
||||
(*face_ptr)[0] = vtx_idx;
|
||||
(*face_ptr)[1] = vtx_idx + 2;
|
||||
(*face_ptr)[2] = vtx_idx + 3;
|
||||
face_ptr++;
|
||||
}
|
||||
|
||||
prevpt = pt;
|
||||
pt = nextpt;
|
||||
}
|
||||
if (!pt->corner) {
|
||||
*vertex_ptr++ = *outline_vertices++;
|
||||
*vertex_ptr++ = *outline_vertices++;
|
||||
}
|
||||
}
|
||||
|
||||
/* back vertices and faces */
|
||||
back_faces = face_ptr;
|
||||
back_vertices = vertex_ptr;
|
||||
for (j = 0; j < glyphs[i].ordered_vertices.count; j++)
|
||||
{
|
||||
D3DXVECTOR2 *pt = get_ordered_vertex(&glyphs[i], j);
|
||||
vertex_ptr->position.x = pt->x + glyphs[i].offset_x;
|
||||
vertex_ptr->position.y = pt->y;
|
||||
vertex_ptr->position.z = 0;
|
||||
vertex_ptr->normal.x = 0;
|
||||
vertex_ptr->normal.y = 0;
|
||||
vertex_ptr->normal.z = 1;
|
||||
vertex_ptr++;
|
||||
}
|
||||
count = back_vertices - vertices;
|
||||
for (j = 0; j < glyphs[i].faces.count; j++)
|
||||
{
|
||||
face *f = &glyphs[i].faces.items[j];
|
||||
(*face_ptr)[0] = (*f)[0] + count;
|
||||
(*face_ptr)[1] = (*f)[1] + count;
|
||||
(*face_ptr)[2] = (*f)[2] + count;
|
||||
face_ptr++;
|
||||
}
|
||||
|
||||
/* front vertices and faces */
|
||||
j = count = vertex_ptr - back_vertices;
|
||||
while (j--)
|
||||
{
|
||||
vertex_ptr->position.x = back_vertices->position.x;
|
||||
vertex_ptr->position.y = back_vertices->position.y;
|
||||
vertex_ptr->position.z = -extrusion;
|
||||
vertex_ptr->normal.x = 0;
|
||||
vertex_ptr->normal.y = 0;
|
||||
vertex_ptr->normal.z = extrusion == 0.0f ? 1.0f : -1.0f;
|
||||
vertex_ptr++;
|
||||
back_vertices++;
|
||||
}
|
||||
j = face_ptr - back_faces;
|
||||
while (j--)
|
||||
{
|
||||
(*face_ptr)[0] = (*back_faces)[0] + count;
|
||||
(*face_ptr)[1] = (*back_faces)[f1] + count;
|
||||
(*face_ptr)[2] = (*back_faces)[f2] + count;
|
||||
face_ptr++;
|
||||
back_faces++;
|
||||
}
|
||||
}
|
||||
|
||||
*mesh_ptr = mesh;
|
||||
hr = D3D_OK;
|
||||
error:
|
||||
if (mesh) {
|
||||
if (faces) mesh->lpVtbl->UnlockIndexBuffer(mesh);
|
||||
if (vertices) mesh->lpVtbl->UnlockVertexBuffer(mesh);
|
||||
if (hr != D3D_OK) mesh->lpVtbl->Release(mesh);
|
||||
}
|
||||
if (glyphs) {
|
||||
for (i = 0; i < textlen; i++)
|
||||
{
|
||||
int j;
|
||||
for (j = 0; j < glyphs[i].outlines.count; j++)
|
||||
HeapFree(GetProcessHeap(), 0, glyphs[i].outlines.items[j].items);
|
||||
HeapFree(GetProcessHeap(), 0, glyphs[i].outlines.items);
|
||||
HeapFree(GetProcessHeap(), 0, glyphs[i].faces.items);
|
||||
HeapFree(GetProcessHeap(), 0, glyphs[i].ordered_vertices.items);
|
||||
}
|
||||
HeapFree(GetProcessHeap(), 0, glyphs);
|
||||
}
|
||||
HeapFree(GetProcessHeap(), 0, raw_outline);
|
||||
if (oldfont) SelectObject(hdc, oldfont);
|
||||
if (font) DeleteObject(font);
|
||||
|
||||
return hr;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue