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Support wglUseFontBitmapsA when using client-side rendering.

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Lionel Ulmer 2002-07-08 19:34:26 +00:00 committed by Alexandre Julliard
parent 6aa9ccb102
commit 70d6e282c8
1 changed files with 89 additions and 1 deletions
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90
dlls/opengl32/wgl.c
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@ -461,7 +461,95 @@ BOOL WINAPI wglUseFontBitmapsA(HDC hdc,
TRACE("(%08x, %ld, %ld, %ld) using font %ld\n", hdc, first, count, listBase, fid);
if (fid == 0) return FALSE;
if (fid == 0) {
/* We are running using client-side rendering fonts... */
GLYPHMETRICS gm;
static const MAT2 id = { { 0, 1 }, { 0, 0 }, { 0, 0 }, { 0, 0 } };
int glyph;
int size = 0;
void *bitmap = NULL, *gl_bitmap = NULL;
int org_alignment;
ENTER_GL();
glGetIntegerv(GL_UNPACK_ALIGNMENT, &org_alignment);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
LEAVE_GL();
for (glyph = first; glyph < first + count; glyph++) {
int needed_size = GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, 0, NULL, &id);
int height, width_int;
if (needed_size == GDI_ERROR) goto error;
if (needed_size > size) {
size = needed_size;
if (bitmap) HeapFree(GetProcessHeap(), 0, bitmap);
if (gl_bitmap) HeapFree(GetProcessHeap(), 0, gl_bitmap);
bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
gl_bitmap = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
}
if (GetGlyphOutlineA(hdc, glyph, GGO_BITMAP, &gm, size, bitmap, &id) == GDI_ERROR) goto error;
if (TRACE_ON(opengl)) {
unsigned int height, width, bitmask;
unsigned char *bitmap_ = (unsigned char *) bitmap;
DPRINTF("Glyph : %d\n", glyph);
DPRINTF(" - bbox : %d x %d\n", gm.gmBlackBoxX, gm.gmBlackBoxY);
DPRINTF(" - origin : (%ld , %ld)\n", gm.gmptGlyphOrigin.x, gm.gmptGlyphOrigin.y);
DPRINTF(" - increment : %d - %d\n", gm.gmCellIncX, gm.gmCellIncY);
DPRINTF(" - size : %d\n", needed_size);
DPRINTF(" - bitmap : \n");
for (height = 0; height < gm.gmBlackBoxY; height++) {
DPRINTF(" ");
for (width = 0, bitmask = 0x80; width < gm.gmBlackBoxX; width++, bitmask >>= 1) {
if (bitmask == 0) {
bitmap_ += 1;
bitmask = 0x80;
}
if (*bitmap_ & bitmask)
DPRINTF("*");
else
DPRINTF(" ");
}
bitmap_ += (4 - (((unsigned int) bitmap_) & 0x03));
DPRINTF("\n");
}
}
/* For some obscure reasons, I seem to need to rotate the glyph for OpenGL to be happy.
As Wine does not seem to support the MAT2 field, I need to do it myself.... */
width_int = (gm.gmBlackBoxX + 31) / 32;
for (height = 0; height < gm.gmBlackBoxY; height++) {
int width;
for (width = 0; width < width_int; width++) {
((int *) gl_bitmap)[(gm.gmBlackBoxY - height - 1) * width_int + width] =
((int *) bitmap)[height * width_int + width];
}
}
ENTER_GL();
glNewList(listBase++, GL_COMPILE);
glBitmap(gm.gmBlackBoxX, gm.gmBlackBoxY, gm.gmptGlyphOrigin.x, gm.gmBlackBoxY - gm.gmptGlyphOrigin.y, gm.gmCellIncX, gm.gmCellIncY, gl_bitmap);
glEndList();
LEAVE_GL();
}
ENTER_GL();
glPixelStorei(GL_UNPACK_ALIGNMENT, org_alignment);
LEAVE_GL();
if (bitmap) HeapFree(GetProcessHeap(), 0, bitmap);
if (gl_bitmap) HeapFree(GetProcessHeap(), 0, gl_bitmap);
return TRUE;
error:
ENTER_GL();
glPixelStorei(GL_UNPACK_ALIGNMENT, org_alignment);
LEAVE_GL();
if (bitmap) HeapFree(GetProcessHeap(), 0, bitmap);
if (gl_bitmap) HeapFree(GetProcessHeap(), 0, gl_bitmap);
return FALSE;
}
ENTER_GL();
/* I assume that the glyphs are at the same position for X and for Windows */