/************************************************************************** * * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. * 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 TUNGSTEN 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 "intel_screen.h" #include "intel_span.h" #include "intel_ioctl.h" #include "swrast/swrast.h" #define DBG 0 #define LOCAL_VARS \ intelContextPtr intel = INTEL_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = intel->driDrawable; \ intelScreenPrivate *intelScreen = intel->intelScreen; \ GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \ GLuint height = dPriv->h; \ char *buf = (char *)(intel->drawMap + \ dPriv->x * intelScreen->cpp + \ dPriv->y * pitch); \ char *read_buf = (char *)(intel->readMap + \ dPriv->x * intelScreen->cpp + \ dPriv->y * pitch); \ GLushort p; \ (void) read_buf; (void) buf; (void) p #define LOCAL_DEPTH_VARS \ intelContextPtr intel = INTEL_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = intel->driDrawable; \ intelScreenPrivate *intelScreen = intel->intelScreen; \ GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \ GLuint height = dPriv->h; \ char *buf = (char *)(intelScreen->depth.map + \ dPriv->x * intelScreen->cpp + \ dPriv->y * pitch) #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS #define INIT_MONO_PIXEL(p,color)\ p = INTEL_PACKCOLOR565(color[0],color[1],color[2]) #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 = intel->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 */ #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 >> 11) & 0x1f) * 255) / 31; \ rgba[1] = (((p >> 5) & 0x3f) * 255) / 63; \ rgba[2] = (((p >> 0) & 0x1f) * 255) / 31; \ rgba[3] = 255; \ } while(0) #define TAG(x) intel##x##_565 #include "spantmp.h" /* 15 bit, 555 rgb color spanline and pixel functions */ #define WRITE_RGBA( _x, _y, r, g, b, a ) \ *(GLushort *)(buf + _x*2 + _y*pitch) = (((r & 0xf8) << 7) | \ ((g & 0xf8) << 3) | \ ((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 >> 7) & 0xf8; \ rgba[1] = (p >> 3) & 0xf8; \ rgba[2] = (p << 3) & 0xf8; \ rgba[3] = 255; \ } while(0) #define TAG(x) intel##x##_555 #include "spantmp.h" /* 16 bit depthbuffer functions. */ #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) intel##x##_16 #include "depthtmp.h" #undef LOCAL_VARS #define LOCAL_VARS \ intelContextPtr intel = INTEL_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = intel->driDrawable; \ intelScreenPrivate *intelScreen = intel->intelScreen; \ GLuint pitch = intelScreen->backPitch * intelScreen->cpp; \ GLuint height = dPriv->h; \ char *buf = (char *)(intel->drawMap + \ dPriv->x * intelScreen->cpp + \ dPriv->y * pitch); \ char *read_buf = (char *)(intel->readMap + \ dPriv->x * intelScreen->cpp + \ dPriv->y * pitch); \ GLuint p; \ (void) read_buf; (void) buf; (void) p #undef INIT_MONO_PIXEL #define INIT_MONO_PIXEL(p,color)\ p = INTEL_PACKCOLOR8888(color[0],color[1],color[2],color[3]) /* 32 bit, 8888 argb color spanline and pixel functions */ #define WRITE_RGBA(_x, _y, r, g, b, a) \ *(GLuint *)(buf + _x*4 + _y*pitch) = ((r << 16) | \ (g << 8) | \ (b << 0) | \ (a << 24) ) #define WRITE_PIXEL(_x, _y, p) \ *(GLuint *)(buf + _x*4 + _y*pitch) = p #define READ_RGBA(rgba, _x, _y) \ do { \ GLuint p = *(GLuint *)(read_buf + _x*4 + _y*pitch); \ rgba[0] = (p >> 16) & 0xff; \ rgba[1] = (p >> 8) & 0xff; \ rgba[2] = (p >> 0) & 0xff; \ rgba[3] = (p >> 24) & 0xff; \ } while (0) #define TAG(x) intel##x##_8888 #include "spantmp.h" /* 24/8 bit interleaved depth/stencil functions */ #define WRITE_DEPTH( _x, _y, d ) { \ GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \ tmp &= 0xff000000; \ tmp |= (d) & 0xffffff; \ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \ } #define READ_DEPTH( d, _x, _y ) \ d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) & 0xffffff; #define TAG(x) intel##x##_24_8 #include "depthtmp.h" #define WRITE_STENCIL( _x, _y, d ) { \ GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \ tmp &= 0xffffff; \ tmp |= ((d)<<24); \ *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp; \ } #define READ_STENCIL( d, _x, _y ) \ d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) >> 24; #define TAG(x) intel##x##_24_8 #include "stenciltmp.h" /* * This function is called to specify which buffer to read and write * for software rasterization (swrast) fallbacks. This doesn't necessarily * correspond to glDrawBuffer() or glReadBuffer() calls. */ static void intelSetBuffer(GLcontext *ctx, GLframebuffer *colorBuffer, GLuint bufferBit) { intelContextPtr intel = INTEL_CONTEXT(ctx); if (bufferBit == DD_FRONT_LEFT_BIT) { intel->drawMap = (char *)intel->driScreen->pFB; intel->readMap = (char *)intel->driScreen->pFB; } else if (bufferBit == DD_BACK_LEFT_BIT) { intel->drawMap = intel->intelScreen->back.map; intel->readMap = intel->intelScreen->back.map; } else { ASSERT(0); } } /* Move locking out to get reasonable span performance. */ void intelSpanRenderStart( GLcontext *ctx ) { intelContextPtr intel = INTEL_CONTEXT(ctx); intelFlush(&intel->ctx); LOCK_HARDWARE(intel); intelWaitForIdle(intel); } void intelSpanRenderFinish( GLcontext *ctx ) { intelContextPtr intel = INTEL_CONTEXT( ctx ); _swrast_flush( ctx ); UNLOCK_HARDWARE( intel ); } void intelInitSpanFuncs( GLcontext *ctx ) { intelContextPtr intel = INTEL_CONTEXT(ctx); intelScreenPrivate *intelScreen = intel->intelScreen; struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); swdd->SetBuffer = intelSetBuffer; switch (intelScreen->fbFormat) { case DV_PF_555: swdd->WriteRGBASpan = intelWriteRGBASpan_555; swdd->WriteRGBSpan = intelWriteRGBSpan_555; swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_555; swdd->WriteRGBAPixels = intelWriteRGBAPixels_555; swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_555; swdd->ReadRGBASpan = intelReadRGBASpan_555; swdd->ReadRGBAPixels = intelReadRGBAPixels_555; swdd->ReadDepthSpan = intelReadDepthSpan_16; swdd->WriteDepthSpan = intelWriteDepthSpan_16; swdd->ReadDepthPixels = intelReadDepthPixels_16; swdd->WriteDepthPixels = intelWriteDepthPixels_16; break; case DV_PF_565: swdd->WriteRGBASpan = intelWriteRGBASpan_565; swdd->WriteRGBSpan = intelWriteRGBSpan_565; swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_565; swdd->WriteRGBAPixels = intelWriteRGBAPixels_565; swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_565; swdd->ReadRGBASpan = intelReadRGBASpan_565; swdd->ReadRGBAPixels = intelReadRGBAPixels_565; swdd->ReadDepthSpan = intelReadDepthSpan_16; swdd->WriteDepthSpan = intelWriteDepthSpan_16; swdd->ReadDepthPixels = intelReadDepthPixels_16; swdd->WriteDepthPixels = intelWriteDepthPixels_16; break; case DV_PF_8888: swdd->WriteRGBASpan = intelWriteRGBASpan_8888; swdd->WriteRGBSpan = intelWriteRGBSpan_8888; swdd->WriteMonoRGBASpan = intelWriteMonoRGBASpan_8888; swdd->WriteRGBAPixels = intelWriteRGBAPixels_8888; swdd->WriteMonoRGBAPixels = intelWriteMonoRGBAPixels_8888; swdd->ReadRGBASpan = intelReadRGBASpan_8888; swdd->ReadRGBAPixels = intelReadRGBAPixels_8888; swdd->ReadDepthSpan = intelReadDepthSpan_24_8; swdd->WriteDepthSpan = intelWriteDepthSpan_24_8; swdd->ReadDepthPixels = intelReadDepthPixels_24_8; swdd->WriteDepthPixels = intelWriteDepthPixels_24_8; swdd->WriteStencilSpan = intelWriteStencilSpan_24_8; swdd->ReadStencilSpan = intelReadStencilSpan_24_8; swdd->WriteStencilPixels = intelWriteStencilPixels_24_8; swdd->ReadStencilPixels = intelReadStencilPixels_24_8; break; } swdd->SpanRenderStart = intelSpanRenderStart; swdd->SpanRenderFinish = intelSpanRenderFinish; }