/* * Copyright (c) 2007 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Neither the name of the Advanced Micro Devices, Inc. nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. */ /* TODO: Support a8 as a source or destination? convert !a8 or !a4 masks? support multiple pass operations? */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "xf86.h" #include "exa.h" #include "geode.h" #include "cim_defs.h" #include "cim_regs.h" #include "geode_blend.h" static const struct exa_format_t { int exa; int bpp; int fmt; int alphabits; } lx_exa_formats[] = { { PICT_a8r8g8b8, 32, CIMGP_SOURCE_FMT_8_8_8_8, 8}, { PICT_x8r8g8b8, 32, CIMGP_SOURCE_FMT_8_8_8_8, 0}, { PICT_x8b8g8r8, 32, CIMGP_SOURCE_FMT_32BPP_BGR, 0}, { PICT_a4r4g4b4, 16, CIMGP_SOURCE_FMT_4_4_4_4, 4}, { PICT_a1r5g5b5, 16, CIMGP_SOURCE_FMT_1_5_5_5, 1}, { PICT_r5g6b5, 16, CIMGP_SOURCE_FMT_0_5_6_5, 0}, { PICT_b5g6r5, 16, CIMGP_SOURCE_FMT_16BPP_BGR, 0}, { PICT_x1r5g5b5, 16, CIMGP_SOURCE_FMT_1_5_5_5, 0}, { PICT_x1b5g5r5, 16, CIMGP_SOURCE_FMT_15BPP_BGR, 0}, { PICT_r3g3b2, 8, CIMGP_SOURCE_FMT_3_3_2, 0} }; /* This is a chunk of memory we use for scratch space */ #define COMP_TYPE_MASK 0 #define COMP_TYPE_ONEPASS 1 #define COMP_TYPE_TWOPASS 3 static struct { int type; unsigned int srcOffset; unsigned int srcPitch; unsigned int srcBpp; unsigned int srcWidth, srcHeight; PixmapPtr srcPixmap; unsigned int srcColor; int op; int repeat; unsigned int fourBpp; unsigned int bufferOffset; struct exa_format_t *srcFormat; struct exa_format_t *dstFormat; } exaScratch; static const int SDfn[16] = { 0x00, 0x88, 0x44, 0xCC, 0x22, 0xAA, 0x66, 0xEE, 0x11, 0x99, 0x55, 0xDD, 0x33, 0xBB, 0x77, 0xFF }; static const int SDfn_PM[16] = { 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA }; /* These functions check to see if we can safely prefetch the memory * for the blt, or if we have to wait the previous blt to complete. * One function is for the fill, and the other is for the copy because * they have different requirements based on ROP */ static int lx0 = -1, ly0 = -1, lx1 = -1, ly1 = -1; static int lx_fill_flags(int x0, int y0, int w, int h, int rop) { int x1 = x0 + w, y1 = y0 + h; int n = ((rop ^ (rop >> 1)) & 0x55) == 0 || /* no dst */ x0 >= lx1 || y0 >= ly1 || /* rght/below */ x1 <= lx0 || y1 <= ly0 ? /* left/above */ 0 : CIMGP_BLTFLAGS_HAZARD; lx0 = x0; ly0 = y0; lx1 = x1; ly1 = y1; return n; } static int lx_copy_flags(int x0, int y0, int x1, int y1, int w, int h, int rop) { int x2 = x1 + w, y2 = y1 + h; /* dst not hazzard and src not hazzard */ int n = (((rop ^ (rop >> 1)) & 0x55) == 0 || x1 >= lx1 || y1 >= ly1 || x2 <= lx0 || y2 <= ly0) && (((rop ^ (rop >> 2)) & 0x33) == 0 || x0 >= lx1 || y0 >= ly1 || x0 + w <= lx0 || y0 + h <= ly0) ? 0 : CIMGP_BLTFLAGS_HAZARD; lx0 = x1; ly0 = y1; lx1 = x2; ly1 = y2; return n; } /* These are borrowed from the exa engine - they should be made global and available to drivers, but until then.... */ /* exaGetPixelFromRGBA (exa_render.c) */ static Bool _GetPixelFromRGBA(CARD32 * pixel, CARD16 red, CARD16 green, CARD16 blue, CARD16 alpha, CARD32 format) { int rbits, bbits, gbits, abits; int rshift, bshift, gshift, ashift; *pixel = 0; if (!PICT_FORMAT_COLOR(format)) return FALSE; rbits = PICT_FORMAT_R(format); gbits = PICT_FORMAT_G(format); bbits = PICT_FORMAT_B(format); abits = PICT_FORMAT_A(format); if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) { bshift = 0; gshift = bbits; rshift = gshift + gbits; ashift = rshift + rbits; } else { /* PICT_TYPE_ABGR */ rshift = 0; gshift = rbits; bshift = gshift + gbits; ashift = bshift + bbits; } *pixel |= (blue >> (16 - bbits)) << bshift; *pixel |= (red >> (16 - rbits)) << rshift; *pixel |= (green >> (16 - gbits)) << gshift; *pixel |= (alpha >> (16 - abits)) << ashift; return TRUE; } /* exaGetRGBAFromPixel (exa_render.c) */ static Bool _GetRGBAFromPixel(CARD32 pixel, CARD16 * red, CARD16 * green, CARD16 * blue, CARD16 * alpha, CARD32 format) { int rbits, bbits, gbits, abits; int rshift, bshift, gshift, ashift; if (!PICT_FORMAT_COLOR(format)) return FALSE; rbits = PICT_FORMAT_R(format); gbits = PICT_FORMAT_G(format); bbits = PICT_FORMAT_B(format); abits = PICT_FORMAT_A(format); if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) { bshift = 0; gshift = bbits; rshift = gshift + gbits; ashift = rshift + rbits; } else { /* PICT_TYPE_ABGR */ rshift = 0; gshift = rbits; bshift = gshift + gbits; ashift = bshift + bbits; } *red = ((pixel >> rshift) & ((1 << rbits) - 1)) << (16 - rbits); while (rbits < 16) { *red |= *red >> rbits; rbits <<= 1; } *green = ((pixel >> gshift) & ((1 << gbits) - 1)) << (16 - gbits); while (gbits < 16) { *green |= *green >> gbits; gbits <<= 1; } *blue = ((pixel >> bshift) & ((1 << bbits) - 1)) << (16 - bbits); while (bbits < 16) { *blue |= *blue >> bbits; bbits <<= 1; } if (abits) { *alpha = ((pixel >> ashift) & ((1 << abits) - 1)) << (16 - abits); while (abits < 16) { *alpha |= *alpha >> abits; abits <<= 1; } } else *alpha = 0xffff; return TRUE; } static unsigned int lx_get_source_color(PixmapPtr pSrc, int srcFormat, int dstFormat) { CARD32 in, out; CARD16 red = 0, green = 0, blue = 0, alpha = 0; /* Stall to avoid a race with the upload function */ /* for 1.4 and newer, the problem will be resolved within * exaGetPixmapFirstPixel, so this should be adjusted so * the stall isn't run needlessly */ gp_wait_until_idle(); in = exaGetPixmapFirstPixel(pSrc); _GetRGBAFromPixel(in, &red, &blue, &green, &alpha, srcFormat); _GetPixelFromRGBA(&out, red, blue, green, alpha, dstFormat); return out; } static Bool lx_prepare_solid(PixmapPtr pxMap, int alu, Pixel planemask, Pixel fg) { int pitch = exaGetPixmapPitch(pxMap); int op = (planemask == ~0U) ? SDfn[alu] : SDfn_PM[alu]; gp_declare_blt(0); gp_set_bpp(pxMap->drawable.bitsPerPixel); gp_set_raster_operation(op); if (planemask != ~0U) gp_set_solid_pattern(planemask); exaScratch.op = op; gp_set_solid_source(fg); gp_set_strides(pitch, pitch); gp_write_parameters(); return TRUE; } static void lx_do_solid(PixmapPtr pxMap, int x1, int y1, int x2, int y2) { int bpp = (pxMap->drawable.bitsPerPixel + 7) / 8; int pitch = exaGetPixmapPitch(pxMap); unsigned int offset = exaGetPixmapOffset(pxMap) + (pitch * y1) + (bpp * x1); gp_declare_blt(lx_fill_flags(x1, y1, x2 - x1, y2 - y1, exaScratch.op)); gp_pattern_fill(offset, x2 - x1, y2 - y1); } static Bool lx_prepare_copy(PixmapPtr pxSrc, PixmapPtr pxDst, int dx, int dy, int alu, Pixel planemask) { int dpitch = exaGetPixmapPitch(pxDst); int op = (planemask == ~0U) ? SDfn[alu] : SDfn_PM[alu]; gp_declare_blt(0); gp_set_bpp(pxDst->drawable.bitsPerPixel); gp_set_raster_operation(op); if (planemask != ~0U) gp_set_solid_pattern(planemask); exaScratch.srcOffset = exaGetPixmapOffset(pxSrc); exaScratch.srcPitch = exaGetPixmapPitch(pxSrc); exaScratch.srcBpp = (pxSrc->drawable.bitsPerPixel + 7) / 8; exaScratch.op = op; gp_set_strides(dpitch, exaScratch.srcPitch); gp_write_parameters(); return TRUE; } static void lx_do_copy(PixmapPtr pxDst, int srcX, int srcY, int dstX, int dstY, int w, int h) { int dstBpp = (pxDst->drawable.bitsPerPixel + 7) / 8; int dstPitch = exaGetPixmapPitch(pxDst); unsigned int srcOffset, dstOffset; int flags = 0; gp_declare_blt(lx_copy_flags(srcX, srcY, dstX, dstY, w, h, exaScratch.op)); //gp_declare_blt(0); srcOffset = exaScratch.srcOffset + (exaScratch.srcPitch * srcY) + (exaScratch.srcBpp) * srcX; dstOffset = exaGetPixmapOffset(pxDst) + (dstPitch * dstY) + (dstBpp * dstX); flags = 0; if (dstX > srcX) flags |= CIMGP_NEGXDIR; if (dstY > srcY) flags |= CIMGP_NEGYDIR; gp_screen_to_screen_blt(dstOffset, srcOffset, w, h, flags); } /* Composite operations These are the simplest - one pass operations - if there is no format or mask, the we can make these happen pretty fast Operation Type Channel Alpha PictOpClear 0 2 0 3 PictOpSrc 0 3 0 3 PictOpDst 0 3 1 3 PictOpOver 2 0 0 3 PictOpOverReverse 2 0 1 3 PictOpIn 0 1 0 3 PictOpInReverse 0 1 1 3 PictOpOut 1 0 0 3 PictOpOutReverse 1 0 1 3 PictOpAdd 2 2 0 3 The following require multiple passes PictOpAtop PictOpXor */ struct blend_ops_t { int operation; int type; int channel; } lx_alpha_ops[] = { /* PictOpClear */ { CIMGP_ALPHA_TIMES_A, CIMGP_CONSTANT_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { }, /* PictOpSrc */ { CIMGP_ALPHA_TIMES_A, CIMGP_ALPHA_EQUALS_ONE, CIMGP_CHANNEL_A_SOURCE}, { }, /* PictOpDst */ { CIMGP_ALPHA_TIMES_A, CIMGP_ALPHA_EQUALS_ONE, CIMGP_CHANNEL_A_DEST}, { }, /* PictOpOver */ { CIMGP_ALPHA_A_PLUS_BETA_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { }, /* PictOpOverReverse */ { CIMGP_ALPHA_A_PLUS_BETA_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_DEST}, { }, /* PictOpIn */ { CIMGP_ALPHA_TIMES_A, CIMGP_CHANNEL_B_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { }, /* PictOpInReverse */ { CIMGP_ALPHA_TIMES_A, CIMGP_CHANNEL_B_ALPHA, CIMGP_CHANNEL_A_DEST}, { }, /* PictOpOut */ { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { }, /* PictOpOutReverse */ { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_DEST}, { }, /* SrcAtop */ { CIMGP_ALPHA_TIMES_A, CIMGP_CHANNEL_B_ALPHA, CIMGP_CHANNEL_A_DEST}, { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_SOURCE}, /* SrcAtopReverse */ { CIMGP_ALPHA_TIMES_A, CIMGP_CHANNEL_B_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_DEST}, /* Xor */ { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { CIMGP_BETA_TIMES_B, CIMGP_CHANNEL_A_ALPHA, CIMGP_CHANNEL_A_SOURCE}, /* PictOpAdd */ { CIMGP_A_PLUS_BETA_B, CIMGP_CONSTANT_ALPHA, CIMGP_CHANNEL_A_SOURCE}, { } }; #define ARRAY_SIZE(a) (sizeof((a)) / (sizeof(*(a)))) static const struct exa_format_t * lx_get_format(PicturePtr p) { int i; unsigned int format = p->format; for (i = 0; i < ARRAY_SIZE(lx_exa_formats); i++) { if (lx_exa_formats[i].bpp < PICT_FORMAT_BPP(format)) break; else if (lx_exa_formats[i].bpp != PICT_FORMAT_BPP(format)) continue; if (lx_exa_formats[i].exa == format) return (&lx_exa_formats[i]); } #if 0 ErrorF("Couldn't match on format %x\n", format); ErrorF("BPP = %d, type = %d, ARGB(%d,%d,%d,%d)n", PICT_FORMAT_BPP(format), PICT_FORMAT_TYPE(format), PICT_FORMAT_A(format), PICT_FORMAT_R(format), PICT_FORMAT_G(format), PICT_FORMAT_B(format)); #endif return NULL; } static Bool lx_check_composite(int op, PicturePtr pSrc, PicturePtr pMsk, PicturePtr pDst) { GeodeRec *pGeode = GEODEPTR_FROM_PICTURE(pDst); /* Check that the operation is supported */ if (op > PictOpAdd) return FALSE; if (usesPasses(op)) { if (pGeode->exaBfrOffset == 0 || !pMsk) return FALSE; } /* Check that the filter matches what we support */ switch (pSrc->filter) { case PictFilterNearest: case PictFilterFast: case PictFilterGood: case PictFilterBest: break; default: ErrorF("invalid filter %d\n", pSrc->filter); return FALSE; } /* We don't handle transforms */ if (pSrc->transform) return FALSE; /* XXX - I don't understand PICT_a8 enough - so I'm punting */ if (pSrc->format == PICT_a8 || pDst->format == PICT_a8) return FALSE; return TRUE; } static Bool lx_prepare_composite(int op, PicturePtr pSrc, PicturePtr pMsk, PicturePtr pDst, PixmapPtr pxSrc, PixmapPtr pxMsk, PixmapPtr pxDst) { GeodeRec *pGeode = GEODEPTR_FROM_PIXMAP(pxDst); const struct exa_format_t *srcFmt, *dstFmt; /* Get the formats for the source and destination */ if ((srcFmt = lx_get_format(pSrc)) == NULL) { ErrorF("EXA: Invalid source format %x\n", pSrc->format); return FALSE; } if ((dstFmt = lx_get_format(pDst)) == NULL) { ErrorF("EXA: Invalid destination format %x\n", pDst->format); return FALSE; } /* Make sure operations that need alpha bits have them */ /* If a mask is enabled, the alpha will come from there */ if (!pMsk && (!srcFmt->alphabits && usesSrcAlpha(op))) { ErrorF("EXA: Source needs alpha bits\n"); return FALSE; } if (!pMsk && (!dstFmt->alphabits && usesDstAlpha(op))) { ErrorF("EXA: Dest needs alpha bits\n"); return FALSE; } /* FIXME: See a way around this! */ if (srcFmt->alphabits == 0 && dstFmt->alphabits != 0) return FALSE; /* Set up the scratch buffer with the information we need */ exaScratch.srcFormat = (struct exa_format_t *)srcFmt; exaScratch.dstFormat = (struct exa_format_t *)dstFmt; exaScratch.op = op; exaScratch.repeat = pSrc->repeat; exaScratch.bufferOffset = pGeode->exaBfrOffset; if (pMsk && op != PictOpClear) { struct blend_ops_t *opPtr = &lx_alpha_ops[op * 2]; int direction = (opPtr->channel == CIMGP_CHANNEL_A_SOURCE) ? 0 : 1; /* We can only do masks with a 8bpp or a 4bpp mask */ if (pMsk->format != PICT_a8 && pMsk->format != PICT_a4) return FALSE; /* Direction 0 indicates src->dst, 1 indiates dst->src */ if (((direction == 0) && (pxSrc->drawable.bitsPerPixel < 16)) || ((direction == 1) && (pxDst->drawable.bitsPerPixel < 16))) { ErrorF("Can't do mask blending with less then 16bpp\n"); return FALSE; } /* Get the source color */ if (direction == 0) exaScratch.srcColor = lx_get_source_color(pxSrc, pSrc->format, pDst->format); else exaScratch.srcColor = lx_get_source_color(pxDst, pDst->format, pSrc->format); /* FIXME: What to do here? */ if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1) return FALSE; /* Save off the info we need (reuse the source values to save space) */ exaScratch.type = COMP_TYPE_MASK; exaScratch.srcOffset = exaGetPixmapOffset(pxMsk); exaScratch.srcPitch = exaGetPixmapPitch(pxMsk); exaScratch.srcBpp = (pxMsk->drawable.bitsPerPixel + 7) / 8; exaScratch.srcWidth = pMsk->pDrawable->width; exaScratch.srcHeight = pMsk->pDrawable->height; /* Flag to indicate if this a 8BPP or a 4BPP mask */ exaScratch.fourBpp = (pxMsk->drawable.bitsPerPixel == 4) ? 1 : 0; /* If the direction is reversed, then remember the source */ if (direction == 1) exaScratch.srcPixmap = pxSrc; } else { if (usesPasses(op)) exaScratch.type = COMP_TYPE_TWOPASS; else exaScratch.type = COMP_TYPE_ONEPASS; exaScratch.srcOffset = exaGetPixmapOffset(pxSrc); exaScratch.srcPitch = exaGetPixmapPitch(pxSrc); exaScratch.srcBpp = (pxSrc->drawable.bitsPerPixel + 7) / 8; exaScratch.srcWidth = pSrc->pDrawable->width; exaScratch.srcHeight = pSrc->pDrawable->height; } return TRUE; } static int lx_get_bpp_from_format(int format) { switch (format) { case CIMGP_SOURCE_FMT_8_8_8_8: case CIMGP_SOURCE_FMT_32BPP_BGR: return 32; case CIMGP_SOURCE_FMT_4_4_4_4: return 12; case CIMGP_SOURCE_FMT_0_5_6_5: case CIMGP_SOURCE_FMT_16BPP_BGR: return 16; case CIMGP_SOURCE_FMT_1_5_5_5: case CIMGP_SOURCE_FMT_15BPP_BGR: return 15; case CIMGP_SOURCE_FMT_3_3_2: return 8; } return 0; } /* BGR needs to be set in the source for it to take - so adjust the source * to enable BGR if the two formats are different, and disable it if they * are the same */ static void lx_set_source_format(int srcFormat, int dstFormat) { if (!(srcFormat & 0x10) && (dstFormat & 0x10)) gp_set_source_format(srcFormat | 0x10); else if ((srcFormat & 0x10) && (dstFormat & 0x10)) gp_set_source_format(srcFormat & ~0x10); else gp_set_source_format(srcFormat); } /* If we are converting colors and we need the channel A alpha, * then use a special alpha type that preserves the alpha before * converting the format */ static inline int get_op_type(struct exa_format_t *src, struct exa_format_t *dst, int type) { return (type == CIMGP_CHANNEL_A_ALPHA && src->alphabits != dst->alphabits) ? CIMGP_CONVERTED_ALPHA : type; } /* Note - this is the preferred onepass method. The other will remain * ifdefed out until such time that we are sure its not needed */ #if 1 static void lx_composite_onepass(PixmapPtr pxDst, unsigned long dstOffset, unsigned long srcOffset, int width, int height) { struct blend_ops_t *opPtr; int apply, type; opPtr = &lx_alpha_ops[exaScratch.op * 2]; apply = (exaScratch.dstFormat->alphabits != 0 && exaScratch.srcFormat->alphabits != 0) ? CIMGP_APPLY_BLEND_TO_ALL : CIMGP_APPLY_BLEND_TO_RGB; gp_declare_blt(0); gp_set_bpp(lx_get_bpp_from_format(exaScratch.dstFormat->fmt)); gp_set_strides(exaGetPixmapPitch(pxDst), exaScratch.srcPitch); lx_set_source_format(exaScratch.srcFormat->fmt, exaScratch.dstFormat->fmt); type = get_op_type(exaScratch.srcFormat, exaScratch.dstFormat, opPtr->type); gp_set_alpha_operation(opPtr->operation, type, opPtr->channel, apply, 0); gp_screen_to_screen_convert(dstOffset, srcOffset, width, height, 0); } #else /* XXX - For now, we assume that the conversion will fit */ static void lx_composite_onepass(PixmapPtr pxDst, unsigned long dstOffset, unsigned long srcOffset, int width, int height) { struct blend_ops_t *opPtr; int apply, type; int sbpp = lx_get_bpp_from_format(exaScratch.srcFormat->fmt); /* Copy the destination into the scratch buffer */ gp_declare_blt(0); gp_set_bpp(sbpp); gp_set_source_format(exaScratch.dstFormat->fmt); gp_set_raster_operation(0xCC); gp_set_strides(exaScratch.srcPitch, exaGetPixmapPitch(pxDst)); gp_screen_to_screen_convert(exaScratch.bufferOffset, dstOffset, width, height, 0); /* Do the blend */ opPtr = &lx_alpha_ops[exaScratch.op * 2]; apply = (exaScratch.srcFormat->alphabits == 0) ? CIMGP_APPLY_BLEND_TO_RGB : CIMGP_APPLY_BLEND_TO_ALL; gp_declare_blt(0); gp_set_bpp(sbpp); type = get_op_type(exaScratch.srcFormat, exaScrach.dstFormat, opPtr->type); gp_set_alpha_operation(opPtr->operation, type, opPtr->channel, apply, 0); gp_set_strides(exaScratch.srcPitch, exaScratch.srcPitch); gp_screen_to_screen_blt(exaScratch.bufferOffset, srcOffset, width, height, 0); /* And copy back */ gp_declare_blt(0); gp_set_bpp(pxDst->drawable.bitsPerPixel); gp_set_source_format(exaScratch.srcFormat->fmt); gp_set_raster_operation(0xCC); gp_set_strides(exaGetPixmapPitch(pxDst), exaScratch.srcPitch); gp_screen_to_screen_convert(dstOffset, exaScratch.bufferOffset, width, height, 0); } #endif #if 0 lx_composite_convert(PixmapPtr pxDst, unsigned long dstOffset, unsigned long srcOffset, int width, int height) { /* Step 1 - copy the destination into the scratch buffer */ gp_declare_blt(0); gp_set_bpp(lx_get_bpp_from_format(exaScratch.dstFormat->fmt)); gp_set_raster_operation(0xCC); gp_set_strides(exaGetPixmapPitch(pxDst), exaGetPixmapPitch(pxDst)); gp_screen_to_screen_blt(exaScratch.bufferOffset, dstOffset, width, height, 0); /* Step 2 - Do the original blend */ lx_composite_onepass(pxDst, exaScratch.bufferOffset, srcOffset, width, height); /* Step 3 - copy back and fixup the alpha */ gp_declare_blt(0); gp_set_bpp(lx_get_bpp_from_format(exaScratch.dstFormat->fmt)); gp_set_strides(exaGetPixmapPitch(pxDst), exaGetPixmapPitch(pxDst)); /* FIXME: Does this alpha value need to be changed for the mode? */ gp_set_alpha_operation(CIMGP_ALPHA_TIMES_A, CIMGP_CONSTANT_ALPHA, CIMGP_CHANNEL_A_SOURCE, CIMGP_APPLY_BLEND_TO_ALPHA, 1); gp_screen_to_screen_blt(dstOffset, exaScratch.bufferOffset, width, height, 0); } #endif /* This function handles the multipass blend functions */ static void lx_composite_multipass(PixmapPtr pxDst, unsigned long dstOffset, unsigned long srcOffset, int width, int height) { struct blend_ops_t *opPtr; int sbpp = lx_get_bpp_from_format(exaScratch.srcFormat->fmt); int apply, type; /* Wait until the GP is idle - this will ensure that the scratch buffer * isn't occupied */ gp_wait_until_idle(); /* Copy the destination to the scratch buffer, and convert it to the * source format */ gp_declare_blt(0); gp_set_bpp(sbpp); gp_set_source_format(exaScratch.dstFormat->fmt); gp_set_raster_operation(0xCC); gp_set_strides(exaScratch.srcPitch, exaGetPixmapPitch(pxDst)); gp_screen_to_screen_convert(exaScratch.bufferOffset, dstOffset, width, height, 0); /* Do the first blend from the source to the scratch buffer */ gp_declare_blt(CIMGP_BLTFLAGS_HAZARD); gp_set_bpp(sbpp); gp_set_source_format(exaScratch.srcFormat->fmt); gp_set_strides(exaScratch.srcPitch, exaScratch.srcPitch); opPtr = &lx_alpha_ops[exaScratch.op * 2]; apply = (exaScratch.srcFormat->alphabits == 0) ? CIMGP_APPLY_BLEND_TO_RGB : CIMGP_APPLY_BLEND_TO_ALL; /* If we're destroying the source alpha bits, then make sure we * use the alpha before the color conversion */ gp_screen_to_screen_blt(exaScratch.bufferOffset, srcOffset, width, height, 0); /* Finally, do the second blend back to the destination */ opPtr = &lx_alpha_ops[(exaScratch.op * 2) + 1]; apply = (exaScratch.dstFormat->alphabits == 0) ? CIMGP_APPLY_BLEND_TO_RGB : CIMGP_APPLY_BLEND_TO_ALL; gp_declare_blt(CIMGP_BLTFLAGS_HAZARD); gp_set_bpp(lx_get_bpp_from_format(exaScratch.dstFormat->fmt)); lx_set_source_format(exaScratch.srcFormat->fmt, exaScratch.dstFormat->fmt); type = get_op_type(exaScratch.srcFormat, exaScratch.dstFormat, opPtr->type); gp_set_alpha_operation(opPtr->operation, type, opPtr->channel, apply, 0); gp_screen_to_screen_convert(dstOffset, exaScratch.bufferOffset, width, height, 0); } static void lx_do_composite_mask(PixmapPtr pxDst, unsigned long dstOffset, unsigned int maskOffset, int width, int height) { struct blend_ops_t *opPtr = &lx_alpha_ops[exaScratch.op * 2]; gp_declare_blt(0); gp_set_source_format(exaScratch.srcFormat->fmt); gp_set_strides(exaGetPixmapPitch(pxDst), exaScratch.srcPitch); gp_set_bpp(lx_get_bpp_from_format(exaScratch.dstFormat->fmt)); gp_set_solid_source(exaScratch.srcColor); gp_blend_mask_blt(dstOffset, 0, width, height, maskOffset, exaScratch.srcPitch, opPtr->operation, exaScratch.fourBpp); } #define GetPixmapOffset(px, x, y) ( exaGetPixmapOffset((px)) + \ (exaGetPixmapPitch((px)) * (y)) + \ ((((px)->drawable.bitsPerPixel + 7) / 8) * (x)) ) static void lx_do_composite(PixmapPtr pxDst, int srcX, int srcY, int maskX, int maskY, int dstX, int dstY, int width, int height) { struct blend_ops_t *opPtr = &lx_alpha_ops[exaScratch.op * 2]; unsigned int dstOffset, srcOffset; unsigned int opX = dstX; unsigned int opY = dstY; unsigned int opWidth = width; unsigned int opHeight = height; if (exaScratch.type == COMP_TYPE_MASK) srcOffset = exaScratch.srcOffset + (maskY * exaScratch.srcPitch) + (maskX * exaScratch.srcBpp); else srcOffset = exaScratch.srcOffset + (srcY * exaScratch.srcPitch) + (srcX * exaScratch.srcBpp); /* Adjust the width / height of the operation the size of the source */ if (exaScratch.srcWidth < width) opWidth = exaScratch.srcWidth; if (exaScratch.srcHeight < height) opHeight = exaScratch.srcHeight; while (1) { dstOffset = GetPixmapOffset(pxDst, opX, opY); switch (exaScratch.type) { case COMP_TYPE_MASK:{ int direction = (opPtr->channel == CIMGP_CHANNEL_A_SOURCE) ? 0 : 1; if (direction == 1) { dstOffset = GetPixmapOffset(exaScratch.srcPixmap, dstX, dstY); lx_do_composite_mask(exaScratch.srcPixmap, dstOffset, srcOffset, opWidth, opHeight); } else { lx_do_composite_mask(pxDst, dstOffset, srcOffset, opWidth, opHeight); } } break; case COMP_TYPE_ONEPASS: lx_composite_onepass(pxDst, dstOffset, srcOffset, opWidth, opHeight); break; case COMP_TYPE_TWOPASS: lx_composite_multipass(pxDst, dstOffset, srcOffset, opWidth, opHeight); break; } if (!exaScratch.repeat) break; opX += opWidth; if (opX >= dstX + width) { opX = dstX; opY += opHeight; if (opY >= dstY + height) break; } opWidth = ((dstX + width) - opX) > exaScratch.srcWidth ? exaScratch.srcWidth : (dstX + width) - opX; opHeight = ((dstY + height) - opY) > exaScratch.srcHeight ? exaScratch.srcHeight : (dstY + height) - opY; } } static void lx_wait_marker(ScreenPtr PScreen, int marker) { gp_wait_until_idle(); } static void lx_done(PixmapPtr ptr) { } Bool LXExaInit(ScreenPtr pScreen) { ScrnInfoPtr pScrni = xf86Screens[pScreen->myNum]; GeodeRec *pGeode = GEODEPTR(pScrni); ExaDriverPtr pExa = pGeode->pExa; pExa->exa_major = EXA_VERSION_MAJOR; pExa->exa_minor = EXA_VERSION_MINOR; pExa->WaitMarker = lx_wait_marker; pExa->PrepareSolid = lx_prepare_solid; pExa->Solid = lx_do_solid; pExa->DoneSolid = lx_done; pExa->PrepareCopy = lx_prepare_copy; pExa->Copy = lx_do_copy; pExa->DoneCopy = lx_done; /* Composite */ pExa->CheckComposite = lx_check_composite; pExa->PrepareComposite = lx_prepare_composite; pExa->Composite = lx_do_composite; pExa->DoneComposite = lx_done; return exaDriverInit(pScreen, pGeode->pExa); }