misc nx-X11/programs/Xserver/{hw/nxagent,miext,render}/: move code around so that we can drop nx-X11/programs/Xserver/render/miglyph.c (and by extension nx-X11/programs/Xserver/hw/nxagent/NXmiglyph.c.)

This is essentially a bastardized cross/backport of these X.Org commits - based
on our current architecture:

commit 4b14c9a9cd2033d3839c4ba364d41ab4c4b198ab
Author: Eric Anholt <eric@anholt.net>
Date:   Fri Oct 19 16:34:54 2007 -0700

    Replace calls to Glyphs screen hook with CompositeGlyphs and remove dead code.

    Not all of the DDX/miext Glyphs hook implementations have been removed, but
    they should be.

and

commit 2251572062b2c25643671b8d5070de1c3f7ae976
Author: Aaron Plattner <aplattner@nvidia.com>
Date:   Fri Oct 26 15:13:50 2007 -0700

    Restore the CompositeGlyphs -> ps->Glyphs -> miGlyphs callchain to allow acceleration architectures to wrap above miGlyphs.

Conflicts:
	nx-X11/programs/Xserver/render/miglyph.c
	nx-X11/programs/Xserver/render/mipict.h
	nx-X11/programs/Xserver/render/picture.c

1 files changed, 207 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/render/glyph.c b/nx-X11/programs/Xserver/render/glyph.c
index 2ef1087e7..d3bfae760 100644
--- a/nx-X11/programs/Xserver/render/glyph.c
+++ b/nx-X11/programs/Xserver/render/glyph.c
@@ -42,6 +42,7 @@
 #include "servermd.h"
 #include "picturestr.h"
 #include "glyphstr.h"
+#include "mipict.h"
 
 #include <stdint.h>
 
@@ -489,3 +490,209 @@ FreeGlyphSet (void	*value,
     }
     return Success;
 }
+
+void
+GlyphExtents(int nlist, GlyphListPtr list, GlyphPtr * glyphs, BoxPtr extents)
+{
+    int x1, x2, y1, y2;
+    int n;
+    GlyphPtr glyph;
+    int x, y;
+
+    x = 0;
+    y = 0;
+    extents->x1 = MAXSHORT;
+    extents->x2 = MINSHORT;
+    extents->y1 = MAXSHORT;
+    extents->y2 = MINSHORT;
+    while (nlist--) {
+        x += list->xOff;
+        y += list->yOff;
+        n = list->len;
+        list++;
+        while (n--) {
+            glyph = *glyphs++;
+            x1 = x - glyph->info.x;
+            if (x1 < MINSHORT)
+                x1 = MINSHORT;
+            y1 = y - glyph->info.y;
+            if (y1 < MINSHORT)
+                y1 = MINSHORT;
+            x2 = x1 + glyph->info.width;
+            if (x2 > MAXSHORT)
+                x2 = MAXSHORT;
+            y2 = y1 + glyph->info.height;
+            if (y2 > MAXSHORT)
+                y2 = MAXSHORT;
+            if (x1 < extents->x1)
+                extents->x1 = x1;
+            if (x2 > extents->x2)
+                extents->x2 = x2;
+            if (y1 < extents->y1)
+                extents->y1 = y1;
+            if (y2 > extents->y2)
+                extents->y2 = y2;
+            x += glyph->info.xOff;
+            y += glyph->info.yOff;
+        }
+    }
+}
+
+#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0)
+
+void
+CompositeGlyphs(CARD8 op,
+                PicturePtr pSrc,
+                PicturePtr pDst,
+                PictFormatPtr maskFormat,
+                INT16 xSrc,
+                INT16 ySrc, int nlist, GlyphListPtr lists, GlyphPtr * glyphs)
+{
+    PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen);
+
+    ValidatePicture(pSrc);
+    ValidatePicture(pDst);
+    (*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, lists,
+                   glyphs);
+}
+
+#ifndef NXAGENT_SERVER
+void
+miGlyphs(CARD8 op,
+         PicturePtr pSrc,
+         PicturePtr pDst,
+         PictFormatPtr maskFormat,
+         INT16 xSrc,
+         INT16 ySrc, int nlist, GlyphListPtr list, GlyphPtr * glyphs)
+{
+    PixmapPtr pPixmap = 0;
+    PicturePtr pPicture;
+    PixmapPtr pMaskPixmap = 0;
+    PicturePtr pMask;
+    ScreenPtr pScreen = pDst->pDrawable->pScreen;
+    int width = 0, height = 0;
+    int x, y;
+    int xDst = list->xOff, yDst = list->yOff;
+    int n;
+    GlyphPtr glyph;
+    int error;
+    BoxRec extents;
+    CARD32 component_alpha;
+
+    if (maskFormat) {
+        GCPtr pGC;
+        xRectangle rect;
+
+        GlyphExtents(nlist, list, glyphs, &extents);
+
+        if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1)
+            return;
+        width = extents.x2 - extents.x1;
+        height = extents.y2 - extents.y1;
+        pMaskPixmap =
+            (*pScreen->CreatePixmap) (pScreen, width, height,
+                                      maskFormat->depth);
+        if (!pMaskPixmap)
+            return;
+        component_alpha = NeedsComponent(maskFormat->format);
+        pMask = CreatePicture(0, &pMaskPixmap->drawable,
+                              maskFormat, CPComponentAlpha, &component_alpha,
+                              serverClient, &error);
+        if (!pMask) {
+            (*pScreen->DestroyPixmap) (pMaskPixmap);
+            return;
+        }
+        pGC = GetScratchGC(pMaskPixmap->drawable.depth, pScreen);
+        ValidateGC(&pMaskPixmap->drawable, pGC);
+        rect.x = 0;
+        rect.y = 0;
+        rect.width = width;
+        rect.height = height;
+        (*pGC->ops->PolyFillRect) (&pMaskPixmap->drawable, pGC, 1, &rect);
+        FreeScratchGC(pGC);
+        x = -extents.x1;
+        y = -extents.y1;
+    }
+    else {
+        pMask = pDst;
+        x = 0;
+        y = 0;
+    }
+    pPicture = 0;
+    while (nlist--) {
+        x += list->xOff;
+        y += list->yOff;
+        n = list->len;
+        while (n--) {
+            glyph = *glyphs++;
+            if (!pPicture) {
+                pPixmap =
+                    GetScratchPixmapHeader(pScreen, glyph->info.width,
+                                           glyph->info.height,
+                                           list->format->depth,
+                                           list->format->depth, 0,
+                                           (void *) (glyph + 1));
+                if (!pPixmap)
+                    return;
+                component_alpha = NeedsComponent(list->format->format);
+                pPicture = CreatePicture(0, &pPixmap->drawable, list->format,
+                                         CPComponentAlpha, &component_alpha,
+                                         serverClient, &error);
+                if (!pPicture) {
+                    FreeScratchPixmapHeader(pPixmap);
+                    return;
+                }
+            }
+            (*pScreen->ModifyPixmapHeader) (pPixmap,
+                                            glyph->info.width,
+                                            glyph->info.height, 0, 0, -1,
+                                            (void *) (glyph + 1));
+            pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+            if (maskFormat) {
+                CompositePicture(PictOpAdd,
+                                 pPicture,
+                                 None,
+                                 pMask,
+                                 0, 0,
+                                 0, 0,
+                                 x - glyph->info.x,
+                                 y - glyph->info.y,
+                                 glyph->info.width, glyph->info.height);
+            }
+            else {
+                CompositePicture(op,
+                                 pSrc,
+                                 pPicture,
+                                 pDst,
+                                 xSrc + (x - glyph->info.x) - xDst,
+                                 ySrc + (y - glyph->info.y) - yDst,
+                                 0, 0,
+                                 x - glyph->info.x,
+                                 y - glyph->info.y,
+                                 glyph->info.width, glyph->info.height);
+            }
+            x += glyph->info.xOff;
+            y += glyph->info.yOff;
+        }
+        list++;
+        if (pPicture) {
+            FreeScratchPixmapHeader(pPixmap);
+            FreePicture((void *) pPicture, 0);
+            pPicture = 0;
+            pPixmap = 0;
+        }
+    }
+    if (maskFormat) {
+        x = extents.x1;
+        y = extents.y1;
+        CompositePicture(op,
+                         pSrc,
+                         pMask,
+                         pDst,
+                         xSrc + x - xDst,
+                         ySrc + y - yDst, 0, 0, x, y, width, height);
+        FreePicture((void *) pMask, (XID) 0);
+        (*pScreen->DestroyPixmap) (pMaskPixmap);
+    }
+}
+#endif