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opengl32: Implement the wglUseFontOutlines WGL_FONT_LINES format.

This commit is contained in:
Sam Edwards 2012-11-06 00:58:30 -07:00 committed by Alexandre Julliard
parent e21a4b291c
commit ced7d66a11
1 changed files with 43 additions and 19 deletions
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62
dlls/opengl32/wgl.c
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@ -1395,7 +1395,7 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
const struct opengl_funcs *funcs = NtCurrentTeb()->glTable;
UINT glyph;
const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
GLUtesselator *tess;
GLUtesselator *tess = NULL;
LOGFONTW lf;
HFONT old_font, unscaled_font;
UINT em_size = 1024;
@ -1407,17 +1407,20 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
if(deviation <= 0.0)
deviation = 1.0/em_size;
if (!load_libglu())
if(format == WGL_FONT_POLYGONS)
{
ERR("glu32 is required for this function but isn't available\n");
return FALSE;
}
if (!load_libglu())
{
ERR("glu32 is required for this function but isn't available\n");
return FALSE;
}
tess = pgluNewTess();
if(!tess) return FALSE;
pgluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
pgluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
pgluTessCallback(tess, GLU_TESS_END, tess_callback_end);
tess = pgluNewTess();
if(!tess) return FALSE;
pgluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
pgluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
pgluTessCallback(tess, GLU_TESS_END, tess_callback_end);
}
GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
rc.left = rc.right = rc.bottom = 0;
@ -1471,7 +1474,8 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
funcs->gl.p_glNewList(listBase++, GL_COMPILE);
funcs->gl.p_glFrontFace(GL_CW);
pgluTessBeginPolygon(tess, NULL);
if(format == WGL_FONT_POLYGONS)
pgluTessBeginPolygon(tess, NULL);
while(!vertices)
{
@ -1488,12 +1492,18 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
if(vertices)
TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
pgluTessBeginContour(tess);
if(format == WGL_FONT_POLYGONS)
pgluTessBeginContour(tess);
else
funcs->gl.p_glBegin(GL_LINE_LOOP);
if(vertices)
{
fixed_to_double(pph->pfxStart, em_size, vertices);
pgluTessVertex(tess, vertices, vertices);
if(format == WGL_FONT_POLYGONS)
pgluTessVertex(tess, vertices, vertices);
else
funcs->gl.p_glVertex3d(vertices[0], vertices[1], vertices[2]);
vertices += 3;
}
vertex_total++;
@ -1513,7 +1523,10 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
TRACE("\t\tline to %d, %d\n",
ppc->apfx[i].x.value, ppc->apfx[i].y.value);
fixed_to_double(ppc->apfx[i], em_size, vertices);
pgluTessVertex(tess, vertices, vertices);
if(format == WGL_FONT_POLYGONS)
pgluTessVertex(tess, vertices, vertices);
else
funcs->gl.p_glVertex3d(vertices[0], vertices[1], vertices[2]);
vertices += 3;
}
fixed_to_double(ppc->apfx[i], em_size, previous);
@ -1558,7 +1571,10 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
vertices[0] = points[j].x;
vertices[1] = points[j].y;
vertices[2] = 0.0;
pgluTessVertex(tess, vertices, vertices);
if(format == WGL_FONT_POLYGONS)
pgluTessVertex(tess, vertices, vertices);
else
funcs->gl.p_glVertex3d(vertices[0], vertices[1], vertices[2]);
vertices += 3;
}
}
@ -1569,20 +1585,27 @@ static BOOL wglUseFontOutlines_common(HDC hdc,
break;
default:
ERR("\t\tcurve type = %d\n", ppc->wType);
pgluTessEndContour(tess);
if(format == WGL_FONT_POLYGONS)
pgluTessEndContour(tess);
else
funcs->gl.p_glEnd();
goto error_in_list;
}
ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
(ppc->cpfx - 1) * sizeof(POINTFX));
}
pgluTessEndContour(tess);
if(format == WGL_FONT_POLYGONS)
pgluTessEndContour(tess);
else
funcs->gl.p_glEnd();
pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
}
}
error_in_list:
pgluTessEndPolygon(tess);
if(format == WGL_FONT_POLYGONS)
pgluTessEndPolygon(tess);
funcs->gl.p_glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0);
funcs->gl.p_glEndList();
HeapFree(GetProcessHeap(), 0, buf);
@ -1591,7 +1614,8 @@ error_in_list:
error:
DeleteObject(SelectObject(hdc, old_font));
pgluDeleteTess(tess);
if(format == WGL_FONT_POLYGONS)
pgluDeleteTess(tess);
return TRUE;
}