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Diffstat (limited to 'xorg-server/hw/xfree86/modes/xf86DiDGA.c')
-rw-r--r--xorg-server/hw/xfree86/modes/xf86DiDGA.c286
1 files changed, 286 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86DiDGA.c b/xorg-server/hw/xfree86/modes/xf86DiDGA.c
new file mode 100644
index 000000000..f40d0abef
--- /dev/null
+++ b/xorg-server/hw/xfree86/modes/xf86DiDGA.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright © 2006 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#else
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#endif
+
+#include "xf86.h"
+#include "xf86DDC.h"
+#include "xf86_OSproc.h"
+#include "dgaproc.h"
+#include "xf86Crtc.h"
+#include "xf86Modes.h"
+#include "gcstruct.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+
+static Bool
+xf86_dga_get_modes (ScreenPtr pScreen)
+{
+ ScrnInfoPtr scrn = xf86Screens[pScreen->myNum];
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ DGAModePtr modes, mode;
+ DisplayModePtr display_mode;
+ int bpp = scrn->bitsPerPixel >> 3;
+ int num;
+
+ num = 0;
+ display_mode = scrn->modes;
+ while (display_mode)
+ {
+ num++;
+ display_mode = display_mode->next;
+ if (display_mode == scrn->modes)
+ break;
+ }
+
+ if (!num)
+ return FALSE;
+
+ modes = xalloc(num * sizeof(DGAModeRec));
+ if (!modes)
+ return FALSE;
+
+ num = 0;
+ display_mode = scrn->modes;
+ while (display_mode)
+ {
+ mode = modes + num++;
+
+ mode->mode = display_mode;
+ mode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
+ mode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
+ if (display_mode->Flags & V_DBLSCAN)
+ mode->flags |= DGA_DOUBLESCAN;
+ if (display_mode->Flags & V_INTERLACE)
+ mode->flags |= DGA_INTERLACED;
+ mode->byteOrder = scrn->imageByteOrder;
+ mode->depth = scrn->depth;
+ mode->bitsPerPixel = scrn->bitsPerPixel;
+ mode->red_mask = scrn->mask.red;
+ mode->green_mask = scrn->mask.green;
+ mode->blue_mask = scrn->mask.blue;
+ mode->visualClass = (bpp == 1) ? PseudoColor : TrueColor;
+ mode->viewportWidth = display_mode->HDisplay;
+ mode->viewportHeight = display_mode->VDisplay;
+ mode->xViewportStep = (bpp == 3) ? 2 : 1;
+ mode->yViewportStep = 1;
+ mode->viewportFlags = DGA_FLIP_RETRACE;
+ mode->offset = 0;
+ mode->address = (unsigned char *) xf86_config->dga_address;
+ mode->bytesPerScanline = xf86_config->dga_stride;
+ mode->imageWidth = xf86_config->dga_width;
+ mode->imageHeight = xf86_config->dga_height;
+ mode->pixmapWidth = mode->imageWidth;
+ mode->pixmapHeight = mode->imageHeight;
+ mode->maxViewportX = mode->imageWidth - mode->viewportWidth;
+ mode->maxViewportY = mode->imageHeight - mode->viewportHeight;
+
+ display_mode = display_mode->next;
+ if (display_mode == scrn->modes)
+ break;
+ }
+ if (xf86_config->dga_modes)
+ xfree (xf86_config->dga_modes);
+ xf86_config->dga_nmode = num;
+ xf86_config->dga_modes = modes;
+ return TRUE;
+}
+
+static Bool
+xf86_dga_set_mode(ScrnInfoPtr scrn, DGAModePtr display_mode)
+{
+ ScreenPtr pScreen = scrn->pScreen;
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+
+ if (!display_mode)
+ {
+ if (xf86_config->dga_save_mode)
+ {
+ xf86SwitchMode(pScreen, xf86_config->dga_save_mode);
+ xf86_config->dga_save_mode = NULL;
+ }
+ }
+ else
+ {
+ if (!xf86_config->dga_save_mode)
+ {
+ xf86_config->dga_save_mode = scrn->currentMode;
+ xf86SwitchMode(pScreen, display_mode->mode);
+ }
+ }
+ return TRUE;
+}
+
+static int
+xf86_dga_get_viewport(ScrnInfoPtr scrn)
+{
+ return 0;
+}
+
+static void
+xf86_dga_set_viewport(ScrnInfoPtr scrn, int x, int y, int flags)
+{
+ scrn->AdjustFrame(scrn->pScreen->myNum, x, y, flags);
+}
+
+static Bool
+xf86_dga_get_drawable_and_gc (ScrnInfoPtr scrn, DrawablePtr *ppDrawable, GCPtr *ppGC)
+{
+ ScreenPtr pScreen = scrn->pScreen;
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+ PixmapPtr pPixmap;
+ GCPtr pGC;
+
+ pPixmap = GetScratchPixmapHeader (pScreen, xf86_config->dga_width, xf86_config->dga_height,
+ scrn->depth, scrn->bitsPerPixel, xf86_config->dga_stride,
+ (char *) scrn->memPhysBase + scrn->fbOffset);
+ if (!pPixmap)
+ return FALSE;
+ pGC = GetScratchGC (scrn->depth, pScreen);
+ if (!pGC)
+ {
+ FreeScratchPixmapHeader (pPixmap);
+ return FALSE;
+ }
+ *ppDrawable = &pPixmap->drawable;
+ *ppGC = pGC;
+ return TRUE;
+}
+
+static void
+xf86_dga_release_drawable_and_gc (ScrnInfoPtr scrn, DrawablePtr pDrawable, GCPtr pGC)
+{
+ FreeScratchGC (pGC);
+ FreeScratchPixmapHeader ((PixmapPtr) pDrawable);
+}
+
+static void
+xf86_dga_fill_rect(ScrnInfoPtr scrn, int x, int y, int w, int h, unsigned long color)
+{
+ GCPtr pGC;
+ DrawablePtr pDrawable;
+ XID vals[1];
+ xRectangle r;
+
+ if (!xf86_dga_get_drawable_and_gc (scrn, &pDrawable, &pGC))
+ return;
+ vals[0] = color;
+ ChangeGC (pGC, GCForeground, vals);
+ ValidateGC (pDrawable, pGC);
+ r.x = x;
+ r.y = y;
+ r.width = w;
+ r.height = h;
+ pGC->ops->PolyFillRect (pDrawable, pGC, 1, &r);
+ xf86_dga_release_drawable_and_gc (scrn, pDrawable, pGC);
+}
+
+static void
+xf86_dga_sync(ScrnInfoPtr scrn)
+{
+ ScreenPtr pScreen = scrn->pScreen;
+ WindowPtr pRoot = WindowTable [pScreen->myNum];
+ char buffer[4];
+
+ pScreen->GetImage (&pRoot->drawable, 0, 0, 1, 1, ZPixmap, ~0L, buffer);
+}
+
+static void
+xf86_dga_blit_rect(ScrnInfoPtr scrn, int srcx, int srcy, int w, int h, int dstx, int dsty)
+{
+ DrawablePtr pDrawable;
+ GCPtr pGC;
+
+ if (!xf86_dga_get_drawable_and_gc (scrn, &pDrawable, &pGC))
+ return;
+ ValidateGC (pDrawable, pGC);
+ pGC->ops->CopyArea (pDrawable, pDrawable, pGC, srcx, srcy, w, h, dstx, dsty);
+ xf86_dga_release_drawable_and_gc (scrn, pDrawable, pGC);
+}
+
+static Bool
+xf86_dga_open_framebuffer(ScrnInfoPtr scrn,
+ char **name,
+ unsigned char **mem, int *size, int *offset, int *flags)
+{
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+
+ *size = xf86_config->dga_stride * xf86_config->dga_height;
+ *mem = (unsigned char *) (xf86_config->dga_address);
+ *offset = 0;
+ *flags = DGA_NEED_ROOT;
+
+ return TRUE;
+}
+
+static void
+xf86_dga_close_framebuffer(ScrnInfoPtr scrn)
+{
+}
+
+static DGAFunctionRec xf86_dga_funcs = {
+ xf86_dga_open_framebuffer,
+ xf86_dga_close_framebuffer,
+ xf86_dga_set_mode,
+ xf86_dga_set_viewport,
+ xf86_dga_get_viewport,
+ xf86_dga_sync,
+ xf86_dga_fill_rect,
+ xf86_dga_blit_rect,
+ NULL
+};
+
+_X_EXPORT Bool
+xf86DiDGAReInit (ScreenPtr pScreen)
+{
+ ScrnInfoPtr scrn = xf86Screens[pScreen->myNum];
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+
+ if (!xf86_dga_get_modes (pScreen))
+ return FALSE;
+
+ return DGAReInitModes (pScreen, xf86_config->dga_modes, xf86_config->dga_nmode);
+}
+
+_X_EXPORT Bool
+xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address)
+{
+ ScrnInfoPtr scrn = xf86Screens[pScreen->myNum];
+ xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+
+ xf86_config->dga_flags = 0;
+ xf86_config->dga_address = dga_address;
+ xf86_config->dga_width = scrn->virtualX;
+ xf86_config->dga_height = scrn->virtualY;
+ xf86_config->dga_stride = scrn->displayWidth * scrn->bitsPerPixel >> 3;
+
+ if (!xf86_dga_get_modes (pScreen))
+ return FALSE;
+
+ return DGAInit(pScreen, &xf86_dga_funcs, xf86_config->dga_modes, xf86_config->dga_nmode);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 19:04:41 +0000