#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
-/* Portion of GDI Objects which the font cache is allowed to use. This
- can be quite high, since the font cache is the only part of Emacs
- that uses a large number of GDI objects, but there should still be
- some GDI objects reserved for other uses. */
-#define CACHE_GDI_ALLOWANCE 9 / 10
+/* 10 planes */
+#define BDF_CODEPOINT_HEAP_INITIAL_SIZE (96 * 10)
+/* about 96 characters */
+#define BDF_BITMAP_HEAP_INITIAL_SIZE (64 * 96)
+
+HANDLE hbdf_cp_heap = INVALID_HANDLE_VALUE;
+HANDLE hbdf_bmp_heap = INVALID_HANDLE_VALUE;
void w32_free_bdf_font(bdffont *fontp);
bdffont *w32_init_bdf_font(char *filename);
+cache_bitmap cached_bitmap_slots[BDF_FONT_CACHE_SIZE];
+cache_bitmap *pcached_bitmap_latest = cached_bitmap_slots;
+
+#define FONT_CACHE_SLOT_OVER_P(p) ((p) >= cached_bitmap_slots + BDF_FONT_CACHE_SIZE)
+
static int
search_file_line(char *key, char *start, int len, char **val, char **next)
{
int linelen;
- char *p;
+ unsigned char *p, *q;
p = memchr(start, '\n', len);
if (!p) return -1;
for (;start < p;start++)
{
- if ((*start != ' ') || (*start != '\t')) break;
+ if ((*start != ' ') && (*start != '\t')) break;
}
linelen = p - start + 1;
*next = p + 1;
if (flag == -1) return 0;
return 1;
}
-
+
char*
get_quoted_string(char *start, char *end)
{
char *p, *q, *result;
p = memchr(start, '\"', end - start);
- q = 0;
-
if (!p) return NULL;
p++;
- q = memchr(p, '\"', end - q);
+ q = memchr(p, '\"', end - p);
if (!q) return NULL;
result = (char*) xmalloc(q - p + 1);
static int
set_bdf_font_info(bdffont *fontp)
{
- char *start, *p, *q;
+ unsigned char *start, *p, *q;
int len, flag;
int bbw, bbh, bbx, bby;
int val1;
fontp->yoffset = 0;
fontp->relative_compose = 0;
fontp->default_ascent = 0;
+
fontp->registry = NULL;
fontp->encoding = NULL;
fontp->slant = NULL;
else if (search_file_line("_MULE_BASELINE_OFFSET", start, len, &p, &q) == 1)
{
val1 = atoi(p);
- fontp->yoffset = val1;
+ fontp->yoffset = -val1;
}
else if (search_file_line("_MULE_RELATIVE_COMPOSE", start, len, &p, &q) == 1)
{
BY_HANDLE_FILE_INFORMATION fileinfo;
int i;
+ if (hbdf_cp_heap == INVALID_HANDLE_VALUE)
+ hbdf_cp_heap = HeapCreate(0, BDF_CODEPOINT_HEAP_INITIAL_SIZE, 0);
+ if (hbdf_bmp_heap = INVALID_HANDLE_VALUE)
+ hbdf_bmp_heap = HeapCreate(0, BDF_BITMAP_HEAP_INITIAL_SIZE, 0);
+
+ if (!hbdf_cp_heap || !hbdf_bmp_heap)
+ error("Fail to create heap for BDF.");
+
hfile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hfile == INVALID_HANDLE_VALUE) return NULL;
for (j = 0;j < BDF_SECOND_OFFSET_TABLE;j++)
{
pcb = pch[j].pcbmp;
- if (pcb) pcb->psrc = NULL;
+ if (pcb)
+ {
+ if (pcb->pbmp)
+ HeapFree(hbdf_bmp_heap, 0, pcb->pbmp);
+ pcb->psrc = NULL;
}
- xfree(pch);
+ }
+ HeapFree(hbdf_cp_heap, 0, pch);
}
}
xfree(fontp);
font_char *pch, *result;
int i;
- if (index > 0xffff)
+ if (!BDF_CODEPOINT_RANGE_COVER_P(index))
return NULL;
pch = fontp->chtbl[BDF_FIRST_OFFSET(index)];
if (!pch)
return NULL;
+
result = &pch[BDF_SECOND_OFFSET(index)];
if (!result->offset) return NULL;
font_char *pch, *result;
int i;
- if (index > 0xffff)
+ if (!BDF_CODEPOINT_RANGE_COVER_P(index))
return NULL;
pch = fontp->chtbl[BDF_FIRST_OFFSET(index)];
if (!pch)
{
pch = fontp->chtbl[BDF_FIRST_OFFSET(index)] =
- (font_char*) xmalloc(sizeof(font_char) *
- BDF_SECOND_OFFSET_TABLE);
- memset(pch, 0, sizeof(font_char) * BDF_SECOND_OFFSET_TABLE);
+ (font_char*) HeapAlloc(hbdf_cp_heap,
+ HEAP_ZERO_MEMORY,
+ sizeof(font_char) *
+ BDF_SECOND_OFFSET_TABLE);
+ if (!pch) return NULL;
+ /* memset(pch, 0, sizeof(font_char) * BDF_SECOND_OFFSET_TABLE); */
}
result = &pch[BDF_SECOND_OFFSET(index)];
{
font_char *result;
int len, flag, font_index;
- unsigned char *start;
- char *p, *q;
+ unsigned char *start, *p, *q;
if (!fontp->seeked) return NULL;
return result;
}
+static void
+clear_cached_bitmap_slots()
+{
+ int i;
+ cache_bitmap *p;
+
+ p = pcached_bitmap_latest;
+ for (i = 0;i < BDF_FONT_CLEAR_SIZE;i++)
+ {
+ if (p->psrc)
+ {
+ if (p->pbmp)
+ HeapFree(hbdf_bmp_heap, 0, p->pbmp);
+ p->psrc->pcbmp = NULL;
+ p->psrc = NULL;
+ }
+ p++;
+ if (FONT_CACHE_SLOT_OVER_P(p))
+ p = cached_bitmap_slots;
+ }
+}
+
#define GET_HEX_VAL(x) ((isdigit(x)) ? ((x) - '0') : \
- (((x) >= 'A') && ((x) <= 'Z')) ? ((x) - 'A' + 10) : \
- (((x) >= 'a') && ((x) <= 'z')) ? ((x) - 'a' + 10) : \
+ (((x) >= 'A') && ((x) <= 'F')) ? ((x) - 'A' + 10) : \
+ (((x) >= 'a') && ((x) <= 'f')) ? ((x) - 'a' + 10) : \
(-1))
int
w32_get_bdf_glyph(bdffont *fontp, int index, int size, glyph_struct *glyph)
{
font_char *pch;
- unsigned char *start, *bitmapp;
- char *p, *q;
- char val1, val2;
- int i, j, len, flag;
+ unsigned char *start, *p, *q, *bitmapp;
+ unsigned char val, val1, val2;
+ int i, j, len, flag, consumed;
+ int align, rowbytes;
pch = get_cached_font_char(fontp, index);
if (!pch)
if (!flag)
return 0;
+ consumed = 0;
+ flag = 0;
p = q;
bitmapp = glyph->bitmap;
+ rowbytes = (glyph->metric.bbw + 7) / 8;
+ /* DIB requires DWORD alignment. */
+ align = sizeof(DWORD) - rowbytes % sizeof(DWORD);
+ consumed = glyph->metric.bbh * (rowbytes + align);
+ glyph->bitmap_size = consumed;
+ glyph->row_byte_size = rowbytes;
+ if (size < consumed) return 0;
+
for(i = 0;i < glyph->metric.bbh;i++)
{
q = memchr(p, '\n', len);
if (!q) return 0;
- for(j = 0;((q > p) && (j < ((glyph->metric.bbw + 7) / 8 )));j++)
+ for(j = 0;((q > p) && (j < rowbytes));j++)
{
val1 = GET_HEX_VAL(*p);
if (val1 == -1) return 0;
val2 = GET_HEX_VAL(*p);
if (val2 == -1) return 0;
p++;
- size--;
- if (size <= 0) return 0;
- /* NAND Operation. */
- *bitmapp++ = (unsigned char)~((val1 << 4) | val2);
- }
- /* CreateBitmap requires WORD alignment. */
- if (j % 2)
- {
- *bitmapp++ = 0xff;
+ val = (unsigned char)((val1 << 4) | val2);
+ if (val) flag = 1;
+ *bitmapp++ = val;
}
+ for(j = 0;j < align;j++)
+ *bitmapp++ = 0x00;
p = q + 1;
}
- return 1;
-}
+ /* If this glyph is white space, return -1. */
+ if (flag == 0) return -1;
-#define NEXT_CACHE_SLOT(n) (((n) + 1 >= BDF_FONT_CACHE_SIZE) ? 0 : ((n) + 1))
+ return consumed;
+}
static
cache_bitmap*
get_bitmap_with_cache(bdffont *fontp, int index)
{
- int bitmap_size;
+ int bitmap_size, bitmap_real_size;
font_char *pch;
cache_bitmap* pcb;
- HBITMAP hbmp;
+ unsigned char *pbmp;
glyph_struct glyph;
- static cache_bitmap cached_bitmap_slots[BDF_FONT_CACHE_SIZE];
- static int cache_in_slot = 0; /* the next slot to use */
- static int cache_out_slot = 0; /* the last slot allocated */
- static int cache_occupancy = 0; /* current cache occupancy */
- static int cache_limit = BDF_FONT_CACHE_SIZE; /* allowed maximum occupancy */
pch = get_cached_font_char(fontp, index);
if (pch)
if (pcb) return pcb;
}
- bitmap_size = ((fontp->urx - fontp->llx) / 8 + 2) * (fontp->ury - fontp->lly)
+ bitmap_size = ((fontp->urx - fontp->llx) / 8 + 3) * (fontp->ury - fontp->lly)
+ 256;
glyph.bitmap = (unsigned char*) alloca(sizeof(unsigned char) * bitmap_size);
- if (!w32_get_bdf_glyph(fontp, index, bitmap_size, &glyph))
+ bitmap_real_size = w32_get_bdf_glyph(fontp, index, bitmap_size, &glyph);
+
+ if (bitmap_real_size == 0)
return NULL;
pch = get_cached_font_char(fontp, index);
if (!pch) return NULL;
- hbmp = CreateBitmap(glyph.metric.bbw, glyph.metric.bbh, 1, 1, glyph.bitmap);
-
- /* if bitmap allocation fails reduce the limit of the occupancy so
- that we can hope it will not happen again. */
- if (hbmp == NULL)
- cache_limit = cache_occupancy * CACHE_GDI_ALLOWANCE;
-
- /* if cache occupancy reaches at the limit release some cache slots */
- if (cache_occupancy >= cache_limit)
+ if (bitmap_real_size > 0)
{
- register int size_to_clear = cache_limit * BDF_FONT_CLEAR_SIZE
- / BDF_FONT_CACHE_SIZE;
- for (; size_to_clear; size_to_clear--,
- cache_out_slot = NEXT_CACHE_SLOT(cache_out_slot))
- {
- register cache_bitmap *p = &cached_bitmap_slots[cache_out_slot];
- if (p->psrc)
- {
- DeleteObject(p->hbmp);
- p->psrc->pcbmp = NULL;
- p->psrc = NULL;
- cache_occupancy--;
- }
- }
+ pbmp = (unsigned char*) HeapAlloc(hbdf_bmp_heap, 0,
+ bitmap_real_size);
+ if (!pbmp) return NULL;
+ memcpy(pbmp, glyph.bitmap, bitmap_real_size);
}
+ else
+ pbmp = NULL; /* white space character */
- if (hbmp == NULL)
- hbmp = CreateBitmap (glyph.metric.bbw, glyph.metric.bbh,
- 1, 1, glyph.bitmap);
-
- pcb = &cached_bitmap_slots[cache_in_slot];
+ pcb = pcached_bitmap_latest;
+ if (pcb->psrc)
+ clear_cached_bitmap_slots();
pcb->psrc = pch;
pcb->metric = glyph.metric;
- pcb->hbmp = hbmp;
+ pcb->pbmp = pbmp;
+ pcb->bitmap_size = glyph.bitmap_size;
+ pcb->row_byte_size = glyph.row_byte_size;
pch->pcbmp = pcb;
- cache_in_slot = NEXT_CACHE_SLOT(cache_in_slot);
- cache_occupancy++;
+ pcached_bitmap_latest++;
+ if (FONT_CACHE_SLOT_OVER_P(pcached_bitmap_latest))
+ pcached_bitmap_latest = cached_bitmap_slots;
return pcb;
}
+static HBITMAP
+create_offscreen_bitmap(HDC hdc, int width, int height, unsigned char **bitsp)
+{
+ HBITMAP hBMP;
+ struct {
+ BITMAPINFOHEADER h;
+ RGBQUAD c[2];
+ } info;
+
+ memset(&info, 0, sizeof(info));
+ info.h.biSize = sizeof(BITMAPINFOHEADER);
+ info.h.biWidth = width;
+ info.h.biHeight = -height;
+ info.h.biPlanes = 1;
+ info.h.biBitCount = 1;
+ info.h.biCompression = BI_RGB;
+ info.c[1].rgbRed = info.c[1].rgbGreen = info.c[1].rgbBlue = 255;
+
+ return CreateDIBSection(hdc, (LPBITMAPINFO)&info,
+ DIB_RGB_COLORS, bitsp, NULL, 0);
+}
+
+glyph_metric *
+w32_BDF_TextMetric(bdffont *fontp, unsigned char *text, int dim)
+{
+ int index;
+ cache_bitmap *pcb;
+
+ if (dim == 1)
+ index = *text;
+ else
+ index = MAKELENDSHORT(text[1], text[0]);
+
+ pcb = get_bitmap_with_cache(fontp, index);
+ if (!pcb)
+ return NULL;
+
+ return &(pcb->metric);
+}
+
int
w32_BDF_TextOut(bdffont *fontp, HDC hdc, int left,
int top, unsigned char *text, int dim, int bytelen,
{
int index, btop;
unsigned char *textp;
- HDC hCompatDC = 0;
cache_bitmap *pcb;
- HBITMAP hBMP;
HBRUSH hFgBrush, hOrgBrush;
- HANDLE horgobj = 0;
+ HANDLE horgobj;
UINT textalign;
- int flag = 0;
+ int width, height;
+ HDC hCompatDC;
+ int ret = 1;
+ static HBITMAP hBMP = 0;
+ static HDC DIBsection_hdc = 0;
+ static int DIBsection_width, DIBsection_height;
+ static unsigned char *bits;
hCompatDC = CreateCompatibleDC(hdc);
+ if (!hCompatDC)
+ return 0;
textalign = GetTextAlign(hdc);
- SaveDC(hdc);
-
hFgBrush = CreateSolidBrush(GetTextColor(hdc));
hOrgBrush = SelectObject(hdc, hFgBrush);
- SetTextColor(hdc, RGB(0, 0, 0));
- SetBkColor(hdc, RGB(0xff, 0xff, 0xff));
textp = text;
+
while(bytelen > 0)
{
if (dim == 1)
pcb = get_bitmap_with_cache(fontp, index);
if (!pcb)
{
- if (horgobj)
- {
- SelectObject(hCompatDC, horgobj);
- DeleteObject(hBMP);
+ ret = 0;
+ break;
}
- DeleteDC(hCompatDC);
- return 0;
+ if (pcb->pbmp)
+ {
+ width = pcb->metric.bbw;
+ height = pcb->metric.bbh;
+
+ if (!(hBMP
+ && (DIBsection_hdc == hdc)
+ && (DIBsection_width == width)
+ && (DIBsection_height == height)))
+ {
+ if (hBMP) DeleteObject(hBMP);
+ hBMP = create_offscreen_bitmap(hdc, width, height, &bits);
+ DIBsection_hdc = hdc;
+ DIBsection_width = width;
+ DIBsection_height = height;
+ if (!hBMP) return 0;
}
- hBMP = pcb->hbmp;
+
+ memcpy(bits, pcb->pbmp, pcb->bitmap_size);
if (textalign & TA_BASELINE)
btop = top - (pcb->metric.bbh + pcb->metric.bboy);
else
btop = top;
- if (horgobj)
- SelectObject(hCompatDC, hBMP);
- else
horgobj = SelectObject(hCompatDC, hBMP);
-#if 0
- BitBlt(hdc, left, btop, pcb->metric.bbw, pcb->metric.bbh, hCompatDC, 0, 0, SRCCOPY);
-#else
- BitBlt(hdc, left, btop, pcb->metric.bbw, pcb->metric.bbh, hCompatDC, 0, 0, 0xB8074A);
-#endif
+ BitBlt(hdc, left, btop, width, height, hCompatDC, 0, 0, 0xE20746);
+ SelectObject(hCompatDC, horgobj);
+ }
+
if (fixed_pitch_size)
left += fixed_pitch_size;
else
left += pcb->metric.dwidth;
}
- SelectObject(hCompatDC, horgobj);
+
+ DeleteDC(hCompatDC);
+
SelectObject(hdc, hOrgBrush);
DeleteObject(hFgBrush);
- DeleteDC(hCompatDC);
- RestoreDC(hdc, -1);
- return 1;
+ return ret;
}
struct font_info *w32_load_bdf_font (struct frame *f, char *fontname,
HCoop / bpt / emacs.git / commitdiff