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opengl32: Implement wglUseFontOutlines.

This commit is contained in:
Huw Davies 2006-03-07 13:55:35 +00:00 committed by Alexandre Julliard
parent 89b3191c7c
commit 4eb4546f21
5 changed files with 235 additions and 6 deletions
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3
configure vendored
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@ -8013,7 +8013,8 @@ fi
for ac_header in GL/gl.h GL/glx.h GL/glext.h
for ac_header in GL/gl.h GL/glx.h GL/glext.h GL/glu.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_header" >&5

2
configure.ac
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@ -373,7 +373,7 @@ then
dnl Check for the presence of OpenGL
if test "x$with_opengl" != "xno"
then
AC_CHECK_HEADERS(GL/gl.h GL/glx.h GL/glext.h,,,
AC_CHECK_HEADERS(GL/gl.h GL/glx.h GL/glext.h GL/glu.h,,,
[#ifdef HAVE_GL_GLX_H
# include <GL/glx.h>
#endif])

2
dlls/opengl32/opengl32.spec
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@ -397,4 +397,4 @@
@ stdcall wglUseFontBitmapsA(long long long long)
@ stdcall wglUseFontBitmapsW(long long long long)
@ stdcall wglUseFontOutlinesA(long long long long long long long ptr)
@ stub wglUseFontOutlinesW
@ stdcall wglUseFontOutlinesW(long long long long long long long ptr)

231
dlls/opengl32/wgl.c
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@ -34,6 +34,11 @@
#include "wgl_ext.h"
#include "opengl_ext.h"
#ifdef HAVE_GL_GLU_H
#undef far
#undef near
#include <GL/glu.h>
#endif
#include "wine/library.h"
#include "wine/debug.h"
@ -864,6 +869,212 @@ BOOL WINAPI wglUseFontBitmapsW(HDC hdc,
return TRUE;
}
#ifdef HAVE_GL_GLU_H
static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3])
{
vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size;
vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size;
vertex[2] = 0.0;
}
static void tess_callback_vertex(GLvoid *vertex)
{
GLdouble *dbl = vertex;
TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]);
glVertex3dv(vertex);
}
static void tess_callback_begin(GLenum which)
{
TRACE("%d\n", which);
glBegin(which);
}
static void tess_callback_end(void)
{
TRACE("\n");
glEnd();
}
/***********************************************************************
* wglUseFontOutlines_common
*/
BOOL WINAPI wglUseFontOutlines_common(HDC hdc,
DWORD first,
DWORD count,
DWORD listBase,
FLOAT deviation,
FLOAT extrusion,
int format,
LPGLYPHMETRICSFLOAT lpgmf,
BOOL unicode)
{
UINT glyph;
const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}};
GLUtesselator *tess;
LOGFONTW lf;
HFONT old_font, unscaled_font;
UINT em_size = 1024;
RECT rc;
TRACE("(%p, %ld, %ld, %ld, %f, %f, %d, %p, %s)\n", hdc, first, count,
listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A");
ENTER_GL();
tess = gluNewTess();
if(tess)
{
gluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex);
gluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin);
gluTessCallback(tess, GLU_TESS_END, tess_callback_end);
}
LEAVE_GL();
if(!tess) return FALSE;
GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf);
rc.left = rc.right = rc.bottom = 0;
rc.top = em_size;
DPtoLP(hdc, (POINT*)&rc, 2);
lf.lfHeight = -abs(rc.top - rc.bottom);
lf.lfOrientation = lf.lfEscapement = 0;
unscaled_font = CreateFontIndirectW(&lf);
old_font = SelectObject(hdc, unscaled_font);
for (glyph = first; glyph < first + count; glyph++)
{
DWORD needed;
GLYPHMETRICS gm;
BYTE *buf;
TTPOLYGONHEADER *pph;
TTPOLYCURVE *ppc;
GLdouble *vertices;
if(unicode)
needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
else
needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity);
if(needed == GDI_ERROR)
goto error;
buf = HeapAlloc(GetProcessHeap(), 0, needed);
vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble));
if(unicode)
GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
else
GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity);
TRACE("glyph %d\n", glyph);
if(lpgmf)
{
lpgmf->gmfBlackBoxX = gm.gmBlackBoxX / em_size;
lpgmf->gmfBlackBoxY = gm.gmBlackBoxY / em_size;
lpgmf->gmfptGlyphOrigin.x = gm.gmptGlyphOrigin.x / em_size;
lpgmf->gmfptGlyphOrigin.y = gm.gmptGlyphOrigin.y / em_size;
lpgmf->gmfCellIncX = gm.gmCellIncX / em_size;
lpgmf->gmfCellIncY = gm.gmCellIncY / em_size;
TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY,
lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY);
lpgmf++;
}
ENTER_GL();
glNewList(listBase++, GL_COMPILE);
gluTessBeginPolygon(tess, NULL);
pph = (TTPOLYGONHEADER*)buf;
while((BYTE*)pph < buf + needed)
{
TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value);
gluTessBeginContour(tess);
fixed_to_double(pph->pfxStart, em_size, vertices);
gluTessVertex(tess, vertices, vertices);
vertices += 3;
ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph));
while((char*)ppc < (char*)pph + pph->cb)
{
int i;
switch(ppc->wType) {
case TT_PRIM_LINE:
for(i = 0; i < ppc->cpfx; i++)
{
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);
gluTessVertex(tess, vertices, vertices);
vertices += 3;
}
break;
case TT_PRIM_QSPLINE:
for(i = 0; i < ppc->cpfx/2; i++)
{
/* FIXME just connecting the control points for now */
TRACE("\t\tcurve %d,%d %d,%d\n",
ppc->apfx[i * 2].x.value, ppc->apfx[i * 3].y.value,
ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value);
fixed_to_double(ppc->apfx[i * 2], em_size, vertices);
gluTessVertex(tess, vertices, vertices);
vertices += 3;
fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices);
gluTessVertex(tess, vertices, vertices);
vertices += 3;
}
break;
default:
ERR("\t\tcurve type = %d\n", ppc->wType);
gluTessEndContour(tess);
goto error_in_list;
}
ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) +
(ppc->cpfx - 1) * sizeof(POINTFX));
}
gluTessEndContour(tess);
pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb);
}
error_in_list:
gluTessEndPolygon(tess);
glEndList();
LEAVE_GL();
HeapFree(GetProcessHeap(), 0, buf);
HeapFree(GetProcessHeap(), 0, vertices);
}
error:
DeleteObject(SelectObject(hdc, old_font));
gluDeleteTess(tess);
return TRUE;
}
#else /* HAVE_GL_GLU_H */
BOOL WINAPI wglUseFontOutlines_common(HDC hdc,
DWORD first,
DWORD count,
DWORD listBase,
FLOAT deviation,
FLOAT extrusion,
int format,
LPGLYPHMETRICSFLOAT lpgmf,
BOOL unicode)
{
FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n");
return FALSE;
}
#endif /* HAVE_GL_GLU_H */
/***********************************************************************
* wglUseFontOutlinesA (OPENGL32.@)
*/
@ -874,10 +1085,24 @@ BOOL WINAPI wglUseFontOutlinesA(HDC hdc,
FLOAT deviation,
FLOAT extrusion,
int format,
LPGLYPHMETRICSFLOAT lpgmf) {
FIXME("(): stub !\n");
LPGLYPHMETRICSFLOAT lpgmf)
{
return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE);
}
return FALSE;
/***********************************************************************
* wglUseFontOutlinesW (OPENGL32.@)
*/
BOOL WINAPI wglUseFontOutlinesW(HDC hdc,
DWORD first,
DWORD count,
DWORD listBase,
FLOAT deviation,
FLOAT extrusion,
int format,
LPGLYPHMETRICSFLOAT lpgmf)
{
return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE);
}
const GLubyte * internal_glGetString(GLenum name) {

3
include/config.h.in
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@ -206,6 +206,9 @@
/* Define to 1 if you have the <GL/glext.h> header file. */
#undef HAVE_GL_GLEXT_H
/* Define to 1 if you have the <GL/glu.h> header file. */
#undef HAVE_GL_GLU_H
/* Define to 1 if you have the <GL/glx.h> header file. */
#undef HAVE_GL_GLX_H