/* * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved. * * 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, sub license, * 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 (including the * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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. */ #include "glheader.h" #include "macros.h" #include "mtypes.h" #include "colormac.h" #include "via_context.h" #include "via_span.h" #include "via_ioctl.h" #include "swrast/swrast.h" #define DBG 0 #define LOCAL_DEPTH_VARS \ __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ viaScreenPrivate *viaScreen = vmesa->viaScreen; \ GLuint pitch = viaScreen->backPitch; \ GLuint height = dPriv->h; \ char *buf = (char *)(vmesa->depth.map) #define CLIPPIXEL(_x,_y) (_x >= minx && _x < maxx && \ _y >= miny && _y < maxy) #define CLIPSPAN(_x, _y, _n, _x1, _n1, _i) \ if (_y < miny || _y >= maxy) { \ _n1 = 0, _x1 = x; \ } \ else { \ _n1 = _n; \ _x1 = _x; \ if (_x1 < minx) _i += (minx -_x1), n1 -= (minx -_x1), _x1 = minx; \ if (_x1 + _n1 >= maxx) n1 -= (_x1 + n1 - maxx); \ } #define Y_FLIP(_y) (height - _y - 1) #define HW_LOCK() #define HW_CLIPLOOP() \ do { \ __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ int _nc = dPriv->numClipRects; \ while (_nc--) { \ int minx = dPriv->pClipRects[_nc].x1 - dPriv->x; \ int miny = dPriv->pClipRects[_nc].y1 - dPriv->y; \ int maxx = dPriv->pClipRects[_nc].x2 - dPriv->x; \ int maxy = dPriv->pClipRects[_nc].y2 - dPriv->y; #define HW_ENDCLIPLOOP() \ } \ } while (0) #define HW_UNLOCK() /* 16 bit, 565 rgb color spanline and pixel functions */ #undef LOCAL_VARS #define LOCAL_VARS \ viaContextPtr vmesa = VIA_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ GLuint pitch = vmesa->drawPitch; \ GLuint height = dPriv->h; \ GLushort p; \ char *buf, *read_buf; \ p = 0; \ if (vmesa->glCtx->Color._DrawDestMask[0] == DD_BACK_LEFT_BIT) { \ buf = (char *)(vmesa->drawMap); \ read_buf = (char *)(vmesa->readMap); \ } \ else { \ buf = (char *)(vmesa->drawMap + \ dPriv->x * 2 + \ dPriv->y * pitch); \ read_buf = (char *)(vmesa->readMap + \ dPriv->x * 2 + \ dPriv->y * pitch); \ } #define INIT_MONO_PIXEL(p, color) \ p = PACK_COLOR_565(color[0], color[1], color[2]) #define WRITE_RGBA(_x, _y, r, g, b, a) \ *(GLushort *)(buf + _x * 2 + _y * pitch) = ((((int)r & 0xf8) << 8) | \ (((int)g & 0xfc) << 3) | \ (((int)b & 0xf8) >> 3)) #define WRITE_PIXEL(_x, _y, p) \ *(GLushort *)(buf + _x * 2 + _y * pitch) = p #define READ_RGBA(rgba, _x, _y) \ do { \ GLushort p = *(GLushort *)(read_buf + _x * 2 + _y * pitch); \ rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \ rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \ rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \ rgba[3] = 255; \ } while (0) #define TAG(x) via##x##_565 #include "spantmp.h" /* 32 bit, 8888 argb color spanline and pixel functions */ #undef LOCAL_VARS #undef LOCAL_DEPTH_VARS #undef INIT_MONO_PIXEL #undef DBG #define DBG 0 #define LOCAL_VARS \ viaContextPtr vmesa = VIA_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ GLuint pitch = vmesa->drawPitch; \ GLuint height = dPriv->h; \ GLuint p; \ char *buf, *read_buf; \ p = 0; \ if (vmesa->glCtx->Color._DrawDestMask[0] == DD_BACK_LEFT_BIT) { \ buf = (char *)(vmesa->drawMap); \ read_buf = (char *)(vmesa->readMap); \ } \ else { \ buf = (char *)(vmesa->drawMap + \ dPriv->x * 4 + \ dPriv->y * pitch); \ read_buf = (char *)(vmesa->readMap + \ dPriv->x * 4 + \ dPriv->y * pitch); \ } #define GET_SRC_PTR(_x, _y) (read_buf + _x * 4 + _y * pitch) #define GET_DST_PTR(_x, _y) ( buf + _x * 4 + _y * pitch) #define SPANTMP_PIXEL_FMT GL_BGRA #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV #define TAG(x) via##x##_8888 #define TAG2(x,y) via##x##_8888##y #include "spantmp2.h" /* 16 bit depthbuffer functions. */ #define LOCAL_DEPTH_VARS \ viaContextPtr vmesa = VIA_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = vmesa->driDrawable; \ GLuint pitch = vmesa->depth.pitch; \ GLuint height = dPriv->h; \ char *buf = (char *)(vmesa->depth.map) #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS #define WRITE_DEPTH(_x, _y, d) \ *(GLushort *)(buf + _x * 2 + _y * pitch) = d; #define READ_DEPTH(d, _x, _y) \ d = *(GLushort *)(buf + _x * 2 + _y * pitch); #define TAG(x) via##x##_16 #include "depthtmp.h" /* 32 bit depthbuffer functions. */ #define WRITE_DEPTH(_x, _y, d) \ *(GLuint *)(buf + _x * 4 + _y * pitch) = d; #define READ_DEPTH(d, _x, _y) \ d = *(GLuint *)(buf + _x * 4 + _y * pitch); #define TAG(x) via##x##_32 #include "depthtmp.h" /* 24/8 bit interleaved depth/stencil functions */ #define WRITE_DEPTH( _x, _y, d ) { \ GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \ tmp &= 0x000000ff; \ tmp |= ((d)<<8); \ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \ } #define READ_DEPTH( d, _x, _y ) \ d = (*(GLuint *)(buf + (_x)*4 + (_y)*pitch)) >> 8; #define TAG(x) via##x##_24_8 #include "depthtmp.h" #define WRITE_STENCIL( _x, _y, d ) { \ GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \ tmp &= 0xffffff00; \ tmp |= (d); \ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \ } #define READ_STENCIL( d, _x, _y ) \ d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) & 0xff; #define TAG(x) via##x##_24_8 #include "stenciltmp.h" static void viaSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit) { viaContextPtr vmesa = VIA_CONTEXT(ctx); if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__); if (bufferBit == DD_FRONT_LEFT_BIT) { vmesa->drawMap = (char *)vmesa->driScreen->pFB; vmesa->readMap = (char *)vmesa->driScreen->pFB; vmesa->drawPitch = vmesa->front.pitch; vmesa->readPitch = vmesa->front.pitch; } else if (bufferBit == DD_BACK_LEFT_BIT) { vmesa->drawMap = vmesa->back.map; vmesa->readMap = vmesa->back.map; vmesa->drawPitch = vmesa->back.pitch; vmesa->readPitch = vmesa->back.pitch; } else { ASSERT(0); } if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__); } /* Move locking out to get reasonable span performance. */ static void viaSpanRenderStart( GLcontext *ctx ) { viaContextPtr vmesa = VIA_CONTEXT(ctx); LOCK_HARDWARE(vmesa); viaFlushPrimsLocked(vmesa); WAIT_IDLE(vmesa); } static void viaSpanRenderFinish( GLcontext *ctx ) { viaContextPtr vmesa = VIA_CONTEXT(ctx); _swrast_flush( ctx ); UNLOCK_HARDWARE( vmesa ); } void viaInitSpanFuncs(GLcontext *ctx) { viaContextPtr vmesa = VIA_CONTEXT(ctx); struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); swdd->SetBuffer = viaSetBuffer; if (VIA_DEBUG) fprintf(stderr, "%s in\n", __FUNCTION__); if (vmesa->viaScreen->bitsPerPixel == 16) { swdd->WriteRGBASpan = viaWriteRGBASpan_565; swdd->WriteRGBSpan = viaWriteRGBSpan_565; swdd->WriteMonoRGBASpan = viaWriteMonoRGBASpan_565; swdd->WriteRGBAPixels = viaWriteRGBAPixels_565; swdd->WriteMonoRGBAPixels = viaWriteMonoRGBAPixels_565; swdd->ReadRGBASpan = viaReadRGBASpan_565; swdd->ReadRGBAPixels = viaReadRGBAPixels_565; } else if (vmesa->viaScreen->bitsPerPixel == 32) { viaInitPointers_8888( swdd ); } else { fprintf(stderr, "%s: failed\n", __FUNCTION__); assert(0); } if (vmesa->glCtx->Visual.depthBits == 16) { swdd->ReadDepthSpan = viaReadDepthSpan_16; swdd->WriteDepthSpan = viaWriteDepthSpan_16; swdd->WriteMonoDepthSpan = viaWriteMonoDepthSpan_16; swdd->ReadDepthPixels = viaReadDepthPixels_16; swdd->WriteDepthPixels = viaWriteDepthPixels_16; } else if (vmesa->glCtx->Visual.depthBits == 24) { fprintf(stderr, "%s: 24/8 span functions\n", __FUNCTION__); swdd->ReadDepthSpan = viaReadDepthSpan_24_8; swdd->WriteDepthSpan = viaWriteDepthSpan_24_8; swdd->ReadDepthPixels = viaReadDepthPixels_24_8; swdd->WriteDepthPixels = viaWriteDepthPixels_24_8; swdd->WriteStencilSpan = viaWriteStencilSpan_24_8; swdd->ReadStencilSpan = viaReadStencilSpan_24_8; swdd->WriteStencilPixels = viaWriteStencilPixels_24_8; swdd->ReadStencilPixels = viaReadStencilPixels_24_8; } else if (vmesa->glCtx->Visual.depthBits == 32) { swdd->ReadDepthSpan = viaReadDepthSpan_32; swdd->WriteDepthSpan = viaWriteDepthSpan_32; swdd->WriteMonoDepthSpan = viaWriteMonoDepthSpan_32; swdd->ReadDepthPixels = viaReadDepthPixels_32; swdd->WriteDepthPixels = viaWriteDepthPixels_32; } swdd->SpanRenderStart = viaSpanRenderStart; swdd->SpanRenderFinish = viaSpanRenderFinish; swdd->WriteCI8Span = NULL; swdd->WriteCI32Span = NULL; swdd->WriteMonoCISpan = NULL; swdd->WriteCI32Pixels = NULL; swdd->WriteMonoCIPixels = NULL; swdd->ReadCI32Span = NULL; swdd->ReadCI32Pixels = NULL; if (VIA_DEBUG) fprintf(stderr, "%s out\n", __FUNCTION__); }