diff options
Diffstat (limited to 'src/radeon_exa_funcs.c')
| -rw-r--r-- | src/radeon_exa_funcs.c | 124 |
1 files changed, 120 insertions, 4 deletions
diff --git a/src/radeon_exa_funcs.c b/src/radeon_exa_funcs.c index 77cffcf..bc22147 100644 --- a/src/radeon_exa_funcs.c +++ b/src/radeon_exa_funcs.c @@ -1,6 +1,7 @@ /* * Copyright 2005 Eric Anholt * Copyright 2005 Benjamin Herrenschmidt + * Copyright 2006 Tungsten Graphics, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -26,6 +27,7 @@ * Eric Anholt <anholt@FreeBSD.org> * Zack Rusin <zrusin@trolltech.com> * Benjamin Herrenschmidt <benh@kernel.crashing.org> + * Michel Dänzer <michel@tungstengraphics.com> * */ @@ -287,27 +289,141 @@ FUNC_NAME(RADEONUploadToScreen)(PixmapPtr pDst, int x, int y, int w, int h, return TRUE; } +#ifdef ACCEL_CP +/* Emit blit with arbitrary source and destination offsets and pitches */ +static void +RADEONBlitChunk(ScrnInfoPtr pScrn, CARD32 datatype, CARD32 src_pitch_offset, + CARD32 dst_pitch_offset, int srcX, int srcY, int dstX, int dstY, + int w, int h) +{ + RADEONInfoPtr info = RADEONPTR(pScrn); + ACCEL_PREAMBLE(); + + BEGIN_ACCEL(6); + OUT_ACCEL_REG(RADEON_DP_GUI_MASTER_CNTL, + RADEON_GMC_DST_PITCH_OFFSET_CNTL | + RADEON_GMC_SRC_PITCH_OFFSET_CNTL | + RADEON_GMC_BRUSH_NONE | + (datatype << 8) | + RADEON_GMC_SRC_DATATYPE_COLOR | + RADEON_ROP3_S | + RADEON_DP_SRC_SOURCE_MEMORY | + RADEON_GMC_CLR_CMP_CNTL_DIS | + RADEON_GMC_WR_MSK_DIS); + OUT_ACCEL_REG(RADEON_SRC_PITCH_OFFSET, src_pitch_offset); + OUT_ACCEL_REG(RADEON_DST_PITCH_OFFSET, dst_pitch_offset); + OUT_ACCEL_REG(RADEON_SRC_Y_X, (srcY << 16) | srcX); + OUT_ACCEL_REG(RADEON_DST_Y_X, (dstY << 16) | dstX); + OUT_ACCEL_REG(RADEON_DST_HEIGHT_WIDTH, (h << 16) | w); + FINISH_ACCEL(); +} +#endif + static Bool FUNC_NAME(RADEONDownloadFromScreen)(PixmapPtr pSrc, int x, int y, int w, int h, char *dst, int dst_pitch) { -#if X_BYTE_ORDER == X_BIG_ENDIAN +#if defined(ACCEL_CP) || X_BYTE_ORDER == X_BIG_ENDIAN RINFO_FROM_SCREEN(pSrc->drawable.pScreen); +#endif +#if X_BYTE_ORDER == X_BIG_ENDIAN unsigned char *RADEONMMIO = info->MMIO; unsigned int swapper = info->ModeReg.surface_cntl & ~(RADEON_NONSURF_AP0_SWP_32BPP | RADEON_NONSURF_AP1_SWP_32BPP | RADEON_NONSURF_AP0_SWP_16BPP | RADEON_NONSURF_AP1_SWP_16BPP); #endif - unsigned char *src = pSrc->devPrivate.ptr; + CARD8 *src = pSrc->devPrivate.ptr; int src_pitch = exaGetPixmapPitch(pSrc); int bpp = pSrc->drawable.bitsPerPixel; +#ifdef ACCEL_CP + CARD32 datatype, src_pitch_offset, scratch_pitch = (w * bpp/8 + 63) & ~63, scratch_off = 0; + drmBufPtr scratch; +#endif TRACE; +#ifdef ACCEL_CP /* - * This is currently done without DMA until I have ironed out the - * various endian issues with R300 among others + * Try to accelerate download. Use an indirect buffer as scratch space, + * blitting the bits to one half while copying them out of the other one and + * then swapping the halves. */ + if (info->accelDFS && bpp != 24 && RADEONGetDatatypeBpp(bpp, &datatype) && + RADEONGetPixmapOffsetPitch(pSrc, &src_pitch_offset) && + (scratch = RADEONCPGetBuffer(pScrn))) + { + int swap = RADEON_HOST_DATA_SWAP_NONE, wpass = w * bpp / 8; + int hpass = min(h, scratch->total/2 / scratch_pitch); + CARD32 scratch_pitch_offset = scratch_pitch << 16 + | (info->gartLocation + info->bufStart + + scratch->idx * scratch->total) >> 10; + drmRadeonIndirect indirect; + ACCEL_PREAMBLE(); + + RADEON_SWITCH_TO_2D(); + + /* Kick the first blit as early as possible */ + RADEONBlitChunk(pScrn, datatype, src_pitch_offset, scratch_pitch_offset, + x, y, 0, 0, w, hpass); + FLUSH_RING(); + +#if X_BYTE_ORDER == X_BIG_ENDIAN + switch (bpp) { + case 16: + swap = RADEON_HOST_DATA_SWAP_16BIT; + break; + case 32: + swap = RADEON_HOST_DATA_SWAP_32BIT; + break; + } +#endif + + while (h) { + int oldhpass = hpass; + + src = (CARD8*)scratch->address + scratch_off; + + y += oldhpass; + h -= oldhpass; + hpass = min(h, scratch->total/2 / scratch_pitch); + + /* Prepare next blit if anything's left */ + if (hpass) { + scratch_off = scratch->total/2 - scratch_off; + RADEONBlitChunk(pScrn, datatype, src_pitch_offset, scratch_pitch_offset + (scratch_off >> 10), + x, y, 0, 0, w, hpass); + } + + /* Wait for previous blit to complete */ + RADEONWaitForIdleMMIO(pScrn); + + /* Kick next blit */ + if (hpass) + FLUSH_RING(); + + /* Copy out data from previous blit */ + if (wpass == scratch_pitch && wpass == dst_pitch) { + RADEONCopySwap((CARD8*)dst, src, wpass * oldhpass, swap); + dst += dst_pitch * oldhpass; + } else while (oldhpass--) { + RADEONCopySwap((CARD8*)dst, src, wpass, swap); + src += scratch_pitch; + dst += dst_pitch; + } + } + + indirect.idx = scratch->idx; + indirect.start = indirect.end = 0; + indirect.discard = 1; + + drmCommandWriteRead(info->drmFD, DRM_RADEON_INDIRECT, + &indirect, sizeof(drmRadeonIndirect)); + + return TRUE; + } +#endif + + /* Can't accelerate download */ exaWaitSync(pSrc->drawable.pScreen); #if X_BYTE_ORDER == X_BIG_ENDIAN |