/* * 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 "mtypes.h" #include "savagedd.h" #include "savagespan.h" #include "savageioctl.h" #include "savage_bci.h" #include "savage_3d_reg.h" #include "swrast/swrast.h" #define DBG 0 #define LOCAL_VARS \ savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ savageScreenPrivate *savageScreen = imesa->savageScreen; \ GLuint cpp = savageScreen->cpp; \ GLuint pitch = imesa->aperturePitch; \ GLuint height = dPriv->h; \ char *buf = (char *)(imesa->drawMap + \ dPriv->x * cpp + \ dPriv->y * pitch); \ char *read_buf = (char *)(imesa->readMap + \ dPriv->x * cpp + \ dPriv->y * pitch); \ GLuint p = SAVAGE_CONTEXT( ctx )->MonoColor; \ (void) read_buf; (void) buf; (void) p #define LOCAL_DEPTH_VARS \ savageContextPtr imesa = SAVAGE_CONTEXT(ctx); \ __DRIdrawablePrivate *dPriv = imesa->mesa_drawable; \ savageScreenPrivate *savageScreen = imesa->savageScreen; \ GLuint zpp = savageScreen->zpp; \ GLuint pitch = imesa->aperturePitch; \ GLuint height = dPriv->h; \ char *buf = (char *)(imesa->apertureBase[TARGET_DEPTH] + \ dPriv->x * zpp + \ dPriv->y * pitch) #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS #define INIT_MONO_PIXEL(p) #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 = imesa->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 INIT_MONO_PIXEL #define INIT_MONO_PIXEL(p, color) \ p = SAVAGEPACKCOLOR565( color[0], color[1], color[2] ) #define WRITE_RGBA( _x, _y, r, g, b, a ) \ do{ \ *(GLushort *)(buf + (_x<<1) + _y*pitch) = ( (((int)r & 0xf8) << 8) |\ (((int)g & 0xfc) << 3) | \ (((int)b & 0xf8) >> 3)); \ }while(0) #define WRITE_PIXEL( _x, _y, p ) \ do{ \ *(GLushort *)(buf + (_x<<1) + _y*pitch) = p; \ }while(0) #define READ_RGBA( rgba, _x, _y ) \ do { \ GLushort p = *(GLushort *)(read_buf + (_x<<1) + _y*pitch); \ rgba[0] = (((p >> 11) & 0x1f) * 255) >>5; \ rgba[1] = (((p >> 5) & 0x3f) * 255) >>6; \ rgba[2] = (((p >> 0) & 0x1f) * 255) >>5; \ rgba[3] = 255; \ } while(0) #define TAG(x) savage##x##_565 #include "spantmp.h" /* 32 bit, 8888 ARGB color spanline and pixel functions */ #undef INIT_MONO_PIXEL #define INIT_MONO_PIXEL(p, color) \ p = SAVAGEPACKCOLOR8888( color[0], color[1], color[2], color[3] ) #define WRITE_RGBA( _x, _y, r, g, b, a ) \ *(GLuint *)(buf + (_x<<2) + _y*pitch) = ( ((GLuint)a << 24) | \ ((GLuint)r << 16) | \ ((GLuint)g << 8) | \ ((GLuint)b )) #define WRITE_PIXEL( _x, _y, p ) \ *(GLuint *)(buf + (_x<<2) + _y*pitch) = p #define READ_RGBA( rgba, _x, _y ) \ do { \ GLuint p = *(GLuint *)(read_buf + (_x<<2) + _y*pitch); \ rgba[0] = (p >> 16) & 0xFF; \ rgba[1] = (p >> 8) & 0xFF; \ rgba[2] = (p >> 0) & 0xFF; \ rgba[3] = 0xFF; \ } while(0) #define TAG(x) savage##x##_8888 #include "spantmp.h" /* 16 bit integer depthbuffer functions * Depth range is reversed. See also savageCalcViewport. */ #define WRITE_DEPTH( _x, _y, d ) \ *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) = 0xFFFF - d #define READ_DEPTH( d, _x, _y ) \ d = 0xFFFF - *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) #define TAG(x) savage##x##_16 #include "depthtmp.h" /* 16 bit float depthbuffer functions */ #define WRITE_DEPTH( _x, _y, d ) \ *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) = \ savageEncodeFloat16( 1.0 - (GLfloat)d/65535.0 ) #define READ_DEPTH( d, _x, _y ) \ d = 65535 - \ savageDecodeFloat16( *(GLushort *)(buf + ((_x)<<1) + (_y)*pitch) ) * \ 65535.0 #define TAG(x) savage##x##_16f #include "depthtmp.h" /* 8-bit stencil /24-bit integer depth depthbuffer functions. * Depth range is reversed. See also savageCalcViewport. */ #define WRITE_DEPTH( _x, _y, d ) do { \ GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ tmp &= 0xFF000000; \ tmp |= 0x00FFFFFF - d; \ *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ } while(0) #define READ_DEPTH( d, _x, _y ) \ d = 0x00FFFFFF - (*(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0x00FFFFFF) #define TAG(x) savage##x##_8_24 #include "depthtmp.h" /* 24 bit float depthbuffer functions */ #define WRITE_DEPTH( _x, _y, d ) do { \ GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ tmp &= 0xFF000000; \ tmp |= savageEncodeFloat24( 1.0 - (GLfloat)d/16777215.0 ); \ *(GLuint *)(buf + (_x<<2) + _y*pitch) = tmp; \ } while(0) #define READ_DEPTH( d, _x, _y ) \ d = 16777215 - savageDecodeFloat24( \ *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0x00FFFFFF) \ * 16777215.0 #define TAG(x) savage##x##_8_24f #include "depthtmp.h" #define WRITE_STENCIL( _x, _y, d ) do { \ GLuint tmp = *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch); \ tmp &= 0x00FFFFFF; \ tmp |= (((GLuint)d)<<24) & 0xFF000000; \ *(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) = tmp; \ } while(0) #define READ_STENCIL( d, _x, _y ) \ d = (GLstencil)((*(GLuint *)(buf + ((_x)<<2) + (_y)*pitch) & 0xFF000000) >> 24) #define TAG(x) savage##x##_8_24 #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 savageDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); char *map; assert((bufferBit == DD_FRONT_LEFT_BIT) || (bufferBit == DD_BACK_LEFT_BIT)); map = (bufferBit == DD_FRONT_LEFT_BIT) ? (char*)imesa->apertureBase[TARGET_FRONT] : (char*)imesa->apertureBase[TARGET_BACK]; imesa->drawMap = map; imesa->readMap = map; assert( (buffer == imesa->driDrawable->driverPrivate) || (buffer == imesa->driReadable->driverPrivate) ); imesa->mesa_drawable = (buffer == imesa->driDrawable->driverPrivate) ? imesa->driDrawable : imesa->driReadable; } /* * Wrappers around _swrast_Copy/Draw/ReadPixels that make sure all * primitives are flushed and the hardware is idle before accessing * the frame buffer. */ static void savageCopyPixels( GLcontext *ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLint destx, GLint desty, GLenum type ) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); FLUSH_BATCH(imesa); WAIT_IDLE_EMPTY; _swrast_CopyPixels(ctx, srcx, srcy, width, height, destx, desty, type); } static void savageDrawPixels( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *packing, const GLvoid *pixels ) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); FLUSH_BATCH(imesa); WAIT_IDLE_EMPTY; _swrast_DrawPixels(ctx, x, y, width, height, format, type, packing, pixels); } static void savageReadPixels( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *packing, GLvoid *pixels ) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); FLUSH_BATCH(imesa); WAIT_IDLE_EMPTY; _swrast_ReadPixels(ctx, x, y, width, height, format, type, packing, pixels); } /* * Make sure the hardware is idle when span-rendering. */ static void savageSpanRenderStart( GLcontext *ctx ) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); FLUSH_BATCH(imesa); WAIT_IDLE_EMPTY; } void savageDDInitSpanFuncs( GLcontext *ctx ) { savageContextPtr imesa = SAVAGE_CONTEXT(ctx); struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); swdd->SetBuffer = savageDDSetBuffer; switch (imesa->savageScreen->cpp) { case 2: swdd->WriteRGBASpan = savageWriteRGBASpan_565; swdd->WriteRGBSpan = savageWriteRGBSpan_565; swdd->WriteMonoRGBASpan = savageWriteMonoRGBASpan_565; swdd->WriteRGBAPixels = savageWriteRGBAPixels_565; swdd->WriteMonoRGBAPixels = savageWriteMonoRGBAPixels_565; swdd->ReadRGBASpan = savageReadRGBASpan_565; swdd->ReadRGBAPixels = savageReadRGBAPixels_565; break; case 4: swdd->WriteRGBASpan = savageWriteRGBASpan_8888; swdd->WriteRGBSpan = savageWriteRGBSpan_8888; swdd->WriteMonoRGBASpan = savageWriteMonoRGBASpan_8888; swdd->WriteRGBAPixels = savageWriteRGBAPixels_8888; swdd->WriteMonoRGBAPixels = savageWriteMonoRGBAPixels_8888; swdd->ReadRGBASpan = savageReadRGBASpan_8888; swdd->ReadRGBAPixels = savageReadRGBAPixels_8888; } switch (imesa->savageScreen->zpp) { case 2: if (imesa->float_depth) { swdd->ReadDepthSpan = savageReadDepthSpan_16f; swdd->WriteDepthSpan = savageWriteDepthSpan_16f; swdd->WriteMonoDepthSpan = savageWriteMonoDepthSpan_16f; swdd->ReadDepthPixels = savageReadDepthPixels_16f; swdd->WriteDepthPixels = savageWriteDepthPixels_16f; } else { swdd->ReadDepthSpan = savageReadDepthSpan_16; swdd->WriteDepthSpan = savageWriteDepthSpan_16; swdd->WriteMonoDepthSpan = savageWriteMonoDepthSpan_16; swdd->ReadDepthPixels = savageReadDepthPixels_16; swdd->WriteDepthPixels = savageWriteDepthPixels_16; } break; case 4: if (imesa->float_depth) { swdd->ReadDepthSpan = savageReadDepthSpan_8_24f; swdd->WriteDepthSpan = savageWriteDepthSpan_8_24f; swdd->WriteMonoDepthSpan = savageWriteMonoDepthSpan_8_24f; swdd->ReadDepthPixels = savageReadDepthPixels_8_24f; swdd->WriteDepthPixels = savageWriteDepthPixels_8_24f; } else { swdd->ReadDepthSpan = savageReadDepthSpan_8_24; swdd->WriteDepthSpan = savageWriteDepthSpan_8_24; swdd->WriteMonoDepthSpan = savageWriteMonoDepthSpan_8_24; swdd->ReadDepthPixels = savageReadDepthPixels_8_24; swdd->WriteDepthPixels = savageWriteDepthPixels_8_24; } swdd->ReadStencilSpan = savageReadStencilSpan_8_24; swdd->WriteStencilSpan = savageWriteStencilSpan_8_24; swdd->ReadStencilPixels = savageReadStencilPixels_8_24; swdd->WriteStencilPixels = savageWriteStencilPixels_8_24; break; } swdd->WriteCI8Span =NULL; swdd->WriteCI32Span =NULL; swdd->WriteMonoCISpan =NULL; swdd->WriteCI32Pixels =NULL; swdd->WriteMonoCIPixels =NULL; swdd->ReadCI32Span =NULL; swdd->ReadCI32Pixels =NULL; swdd->SpanRenderStart = savageSpanRenderStart; /* Pixel path fallbacks. */ ctx->Driver.Accum = _swrast_Accum; ctx->Driver.Bitmap = _swrast_Bitmap; ctx->Driver.CopyPixels = savageCopyPixels; ctx->Driver.DrawPixels = savageDrawPixels; ctx->Driver.ReadPixels = savageReadPixels; }