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