317 lines
7.4 KiB
C
317 lines
7.4 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "riva_local.h"
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#include "riva_include.h"
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#include "riva_type.h"
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#include "riva_proto.h"
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#ifdef HAVE_XAA_H
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#include "xaalocal.h"
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#endif
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#include "dgaproc.h"
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static Bool Riva_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
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int *, int *, int *);
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static Bool Riva_SetMode(ScrnInfoPtr, DGAModePtr);
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static int Riva_GetViewport(ScrnInfoPtr);
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static void Riva_SetViewport(ScrnInfoPtr, int, int, int);
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#ifdef HAVE_XAA_H
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static void Riva_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
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static void Riva_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
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static void Riva_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
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unsigned long);
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#endif
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static
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DGAFunctionRec Riva_DGAFuncs = {
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Riva_OpenFramebuffer,
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NULL,
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Riva_SetMode,
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Riva_SetViewport,
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Riva_GetViewport,
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RivaSync,
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#ifdef HAVE_XAA_H
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Riva_FillRect,
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Riva_BlitRect,
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Riva_BlitTransRect
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#else
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NULL, NULL, NULL
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#endif
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};
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static DGAModePtr
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RivaSetupDGAMode(
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ScrnInfoPtr pScrn,
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DGAModePtr modes,
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int *num,
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int bitsPerPixel,
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int depth,
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Bool pixmap,
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int secondPitch,
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unsigned long red,
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unsigned long green,
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unsigned long blue,
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short visualClass
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){
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DisplayModePtr firstMode, pMode;
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RivaPtr pRiva = RivaPTR(pScrn);
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DGAModePtr mode, newmodes;
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int size, pitch, Bpp = bitsPerPixel >> 3;
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SECOND_PASS:
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pMode = firstMode = pScrn->modes;
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while(1) {
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pitch = (pMode->HDisplay + 31) & ~31;
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size = pitch * Bpp * pMode->VDisplay;
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if((!secondPitch || (pitch != secondPitch)) &&
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(size <= pRiva->FbUsableSize)) {
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if(secondPitch)
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pitch = secondPitch;
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if(!(newmodes = realloc(modes, (*num + 1) * sizeof(DGAModeRec))))
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break;
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modes = newmodes;
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mode = modes + *num;
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mode->mode = pMode;
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mode->flags = DGA_CONCURRENT_ACCESS;
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if(pixmap)
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mode->flags |= DGA_PIXMAP_AVAILABLE;
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#ifdef HAVE_XAA_H
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if(!pRiva->NoAccel)
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mode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
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#endif
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if(pMode->Flags & V_DBLSCAN)
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mode->flags |= DGA_DOUBLESCAN;
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if(pMode->Flags & V_INTERLACE)
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mode->flags |= DGA_INTERLACED;
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mode->byteOrder = pScrn->imageByteOrder;
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mode->depth = depth;
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mode->bitsPerPixel = bitsPerPixel;
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mode->red_mask = red;
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mode->green_mask = green;
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mode->blue_mask = blue;
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mode->visualClass = visualClass;
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mode->viewportWidth = pMode->HDisplay;
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mode->viewportHeight = pMode->VDisplay;
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mode->xViewportStep = 4 / Bpp;
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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 = pRiva->FbStart;
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mode->bytesPerScanline = pitch * Bpp;
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mode->imageWidth = pitch;
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mode->imageHeight = pRiva->FbUsableSize / mode->bytesPerScanline;
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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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(*num)++;
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}
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pMode = pMode->next;
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if(pMode == firstMode)
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break;
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}
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if(secondPitch) {
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secondPitch = 0;
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goto SECOND_PASS;
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}
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return modes;
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}
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Bool
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RivaDGAInit(ScreenPtr pScreen)
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{
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ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
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RivaPtr pRiva = RivaPTR(pScrn);
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DGAModePtr modes = NULL;
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int num = 0;
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/* 8 */
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modes = RivaSetupDGAMode (pScrn, modes, &num, 8, 8,
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(pScrn->bitsPerPixel == 8),
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(pScrn->bitsPerPixel != 8) ? 0 : pScrn->displayWidth,
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0, 0, 0, PseudoColor);
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/* 15 */
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modes = RivaSetupDGAMode (pScrn, modes, &num, 16, 15,
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(pScrn->bitsPerPixel == 16),
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(pScrn->depth != 15) ? 0 : pScrn->displayWidth,
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0x7c00, 0x03e0, 0x001f, TrueColor);
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/* 32 */
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modes = RivaSetupDGAMode (pScrn, modes, &num, 32, 24,
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(pScrn->bitsPerPixel == 32),
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(pScrn->bitsPerPixel != 32) ? 0 : pScrn->displayWidth,
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0xff0000, 0x00ff00, 0x0000ff, TrueColor);
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pRiva->numDGAModes = num;
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pRiva->DGAModes = modes;
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return DGAInit(pScreen, &Riva_DGAFuncs, modes, num);
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}
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static int
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BitsSet(unsigned long data)
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{
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unsigned long mask;
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int set = 0;
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for(mask = 1; mask; mask <<= 1)
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if(mask & data) set++;
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return set;
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}
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static Bool
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Riva_SetMode(
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ScrnInfoPtr pScrn,
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DGAModePtr pMode
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){
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static RivaFBLayout SavedLayouts[MAXSCREENS];
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int index = pScrn->pScreen->myNum;
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RivaPtr pRiva = RivaPTR(pScrn);
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if(!pMode) { /* restore the original mode */
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if(pRiva->DGAactive)
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memcpy(&pRiva->CurrentLayout, &SavedLayouts[index], sizeof(RivaFBLayout));
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pScrn->currentMode = pRiva->CurrentLayout.mode;
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RivaSwitchMode(SWITCH_MODE_ARGS(pScrn, pScrn->currentMode));
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RivaAdjustFrame(ADJUST_FRAME_ARGS(pScrn, pScrn->frameX0, pScrn->frameY0));
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pRiva->DGAactive = FALSE;
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} else {
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if(!pRiva->DGAactive) { /* save the old parameters */
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memcpy(&SavedLayouts[index], &pRiva->CurrentLayout, sizeof(RivaFBLayout));
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pRiva->DGAactive = TRUE;
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}
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/* update CurrentLayout */
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pRiva->CurrentLayout.bitsPerPixel = pMode->bitsPerPixel;
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pRiva->CurrentLayout.depth = pMode->depth;
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pRiva->CurrentLayout.displayWidth = pMode->bytesPerScanline /
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(pMode->bitsPerPixel >> 3);
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pRiva->CurrentLayout.weight.red = BitsSet(pMode->red_mask);
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pRiva->CurrentLayout.weight.green = BitsSet(pMode->green_mask);
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pRiva->CurrentLayout.weight.blue = BitsSet(pMode->blue_mask);
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/* RivaModeInit() will set the mode field */
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RivaSwitchMode(SWITCH_MODE_ARGS(pScrn, pMode->mode));
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}
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return TRUE;
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}
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static int
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Riva_GetViewport(
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ScrnInfoPtr pScrn
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){
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RivaPtr pRiva = RivaPTR(pScrn);
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return pRiva->DGAViewportStatus;
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}
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static void
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Riva_SetViewport(
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ScrnInfoPtr pScrn,
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int x, int y,
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int flags
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){
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RivaPtr pRiva = RivaPTR(pScrn);
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RivaAdjustFrame(ADJUST_FRAME_ARGS(pScrn, x, y));
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while(VGA_RD08(pRiva->riva.PCIO, 0x3da) & 0x08);
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while(!(VGA_RD08(pRiva->riva.PCIO, 0x3da) & 0x08));
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pRiva->DGAViewportStatus = 0;
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}
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#ifdef HAVE_XAA_H
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static void
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Riva_FillRect (
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ScrnInfoPtr pScrn,
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int x, int y, int w, int h,
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unsigned long color
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){
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RivaPtr pRiva = RivaPTR(pScrn);
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if(!pRiva->AccelInfoRec) return;
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(*pRiva->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
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(*pRiva->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
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SET_SYNC_FLAG(pRiva->AccelInfoRec);
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}
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static void
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Riva_BlitRect(
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ScrnInfoPtr pScrn,
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int srcx, int srcy,
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int w, int h,
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int dstx, int dsty
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){
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RivaPtr pRiva = RivaPTR(pScrn);
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int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
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int ydir = (srcy < dsty) ? -1 : 1;
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if(!pRiva->AccelInfoRec) return;
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(*pRiva->AccelInfoRec->SetupForScreenToScreenCopy)(
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pScrn, xdir, ydir, GXcopy, ~0, -1);
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(*pRiva->AccelInfoRec->SubsequentScreenToScreenCopy)(
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pScrn, srcx, srcy, dstx, dsty, w, h);
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SET_SYNC_FLAG(pRiva->AccelInfoRec);
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}
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static void
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Riva_BlitTransRect(
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ScrnInfoPtr pScrn,
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int srcx, int srcy,
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int w, int h,
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int dstx, int dsty,
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unsigned long color
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){
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/* not implemented... yet */
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}
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#endif
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static Bool
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Riva_OpenFramebuffer(
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ScrnInfoPtr pScrn,
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char **name,
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unsigned char **mem,
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int *size,
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int *offset,
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int *flags
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){
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RivaPtr pRiva = RivaPTR(pScrn);
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*name = NULL; /* no special device */
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*mem = (unsigned char*)pRiva->FbAddress;
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*size = pRiva->FbMapSize;
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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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