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authormarha <marha@users.sourceforge.net>2009-12-02 17:33:15 +0000
committermarha <marha@users.sourceforge.net>2009-12-02 17:33:15 +0000
commit314d225f3a60cc0ea63c292a2c2ffe3609e7c739 (patch)
tree181562a86ee74db9182bd9b60d258d3fed6642ee /xorg-server/exa/exa_glyphs.c
parent4ac4a5b7ce8cc8f195d69a42da10d386eaa5c056 (diff)
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Diffstat (limited to 'xorg-server/exa/exa_glyphs.c')
-rw-r--r--xorg-server/exa/exa_glyphs.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/xorg-server/exa/exa_glyphs.c b/xorg-server/exa/exa_glyphs.c
index 5a370047e..fd14e9b87 100644
--- a/xorg-server/exa/exa_glyphs.c
+++ b/xorg-server/exa/exa_glyphs.c
@@ -62,10 +62,15 @@
*/
#define CACHE_PICTURE_WIDTH 1024
+/* Maximum number of glyphs we buffer on the stack before flushing
+ * rendering to the mask or destination surface.
+ */
+#define GLYPH_BUFFER_SIZE 256
+
typedef struct {
PicturePtr mask;
+ ExaCompositeRectRec rects[GLYPH_BUFFER_SIZE];
int count;
- ExaCompositeRectRec rects[0];
} ExaGlyphBuffer, *ExaGlyphBufferPtr;
typedef enum {
@@ -347,11 +352,11 @@ exaGlyphCacheHashRemove(ExaGlyphCachePtr cache,
/* The most efficient thing to way to upload the glyph to the screen
* is to use the UploadToScreen() driver hook; this allows us to
- * pipeline glyph uploads and to avoid creating offscreen pixmaps for
+ * pipeline glyph uploads and to avoid creating gpu backed pixmaps for
* glyphs that we'll never use again.
*
- * If we can't do it with UploadToScreen (because the glyph is offscreen, etc),
- * we fall back to CompositePicture.
+ * If we can't do it with UploadToScreen (because the glyph has a gpu copy,
+ * etc), we fall back to CompositePicture.
*
* We need to damage the cache pixmap manually in either case because the damage
* layer unwrapped the picture screen before calling exaGlyphs.
@@ -374,7 +379,7 @@ exaGlyphCacheUploadGlyph(ScreenPtr pScreen,
/* If the glyph pixmap is already uploaded, no point in doing
* things this way */
- if (exaPixmapIsOffscreen(pGlyphPixmap))
+ if (exaPixmapHasGpuCopy(pGlyphPixmap))
goto composite;
/* UploadToScreen only works if bpp match */
@@ -384,7 +389,7 @@ exaGlyphCacheUploadGlyph(ScreenPtr pScreen,
if (pExaScr->do_migration) {
ExaMigrationRec pixmaps[1];
- /* cache pixmap must be offscreen. */
+ /* cache pixmap must have a gpu copy. */
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pCachePixmap;
@@ -392,7 +397,7 @@ exaGlyphCacheUploadGlyph(ScreenPtr pScreen,
exaDoMigration (pixmaps, 1, TRUE);
}
- if (!exaPixmapIsOffscreen(pCachePixmap))
+ if (!exaPixmapHasGpuCopy(pCachePixmap))
goto composite;
/* x,y are in pixmap coordinates, no need for cache{X,Y}off */
@@ -552,13 +557,16 @@ exaBufferGlyph(ScreenPtr pScreen,
INT16 yDst)
{
ExaScreenPriv(pScreen);
- PicturePtr mask = GlyphPicture(pGlyph)[pScreen->myNum];
- unsigned int format = mask->format;
+ unsigned int format = (GlyphPicture(pGlyph)[pScreen->myNum])->format;
int width = pGlyph->info.width;
int height = pGlyph->info.height;
ExaCompositeRectPtr rect;
+ PicturePtr mask;
int i;
+ if (buffer->count == GLYPH_BUFFER_SIZE)
+ return ExaGlyphNeedFlush;
+
if (PICT_FORMAT_BPP(format) == 1)
format = PICT_a8;
@@ -589,6 +597,7 @@ exaBufferGlyph(ScreenPtr pScreen,
/* Couldn't find the glyph in the cache, use the glyph picture directly */
+ mask = GlyphPicture(pGlyph)[pScreen->myNum];
if (buffer->mask && buffer->mask != mask)
return ExaGlyphNeedFlush;
@@ -702,18 +711,12 @@ exaGlyphs (CARD8 op,
int width = 0, height = 0;
int x, y;
int first_xOff = list->xOff, first_yOff = list->yOff;
- int i, n;
+ int n;
GlyphPtr glyph;
int error;
BoxRec extents = {0, 0, 0, 0};
CARD32 component_alpha;
- ExaGlyphBufferPtr buffer;
-
- for (i = 0, n = 0; i < nlist; i++)
- n += list[i].len;
- buffer = alloca(sizeof(ExaGlyphBuffer) + n * sizeof(ExaCompositeRectRec));
- if (!buffer)
- return;
+ ExaGlyphBuffer buffer;
if (maskFormat)
{
@@ -793,8 +796,8 @@ exaGlyphs (CARD8 op,
x = 0;
y = 0;
}
- buffer->count = 0;
- buffer->mask = NULL;
+ buffer.count = 0;
+ buffer.mask = NULL;
while (nlist--)
{
x += list->xOff;
@@ -809,23 +812,23 @@ exaGlyphs (CARD8 op,
/* pGlyph->info.{x,y} compensate for empty space in the glyph. */
if (maskFormat)
{
- if (exaBufferGlyph(pScreen, buffer, glyph, NULL, pMask,
+ if (exaBufferGlyph(pScreen, &buffer, glyph, NULL, pMask,
0, 0, 0, 0, x - glyph->info.x, y - glyph->info.y) == ExaGlyphNeedFlush)
{
- exaGlyphsToMask(pMask, buffer);
- exaBufferGlyph(pScreen, buffer, glyph, NULL, pMask,
+ exaGlyphsToMask(pMask, &buffer);
+ exaBufferGlyph(pScreen, &buffer, glyph, NULL, pMask,
0, 0, 0, 0, x - glyph->info.x, y - glyph->info.y);
}
}
else
{
- if (exaBufferGlyph(pScreen, buffer, glyph, pSrc, pDst,
+ if (exaBufferGlyph(pScreen, &buffer, glyph, pSrc, pDst,
xSrc + (x - glyph->info.x) - first_xOff, ySrc + (y - glyph->info.y) - first_yOff,
0, 0, x - glyph->info.x, y - glyph->info.y)
== ExaGlyphNeedFlush)
{
- exaGlyphsToDst(pSrc, pDst, buffer);
- exaBufferGlyph(pScreen, buffer, glyph, pSrc, pDst,
+ exaGlyphsToDst(pSrc, pDst, &buffer);
+ exaBufferGlyph(pScreen, &buffer, glyph, pSrc, pDst,
xSrc + (x - glyph->info.x) - first_xOff, ySrc + (y - glyph->info.y) - first_yOff,
0, 0, x - glyph->info.x, y - glyph->info.y);
}
@@ -838,11 +841,11 @@ exaGlyphs (CARD8 op,
list++;
}
- if (buffer->count) {
+ if (buffer.count) {
if (maskFormat)
- exaGlyphsToMask(pMask, buffer);
+ exaGlyphsToMask(pMask, &buffer);
else
- exaGlyphsToDst(pSrc, pDst, buffer);
+ exaGlyphsToDst(pSrc, pDst, &buffer);
}
if (maskFormat)