diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c new file mode 100644 index 000000000..0ac0eeaa6 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/mach64/mach64_span.c @@ -0,0 +1,231 @@ +/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */ +/* + * Copyright 2000 Gareth Hughes + * 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL + * GARETH HUGHES 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. + */ + +/* + * Authors: + * Gareth Hughes <gareth@valinux.com> + * Leif Delgass <ldelgass@retinalburn.net> + * Jos�Fonseca <j_r_fonseca@yahoo.co.uk> + */ + +#include "mach64_context.h" +#include "mach64_ioctl.h" +#include "mach64_state.h" +#include "mach64_span.h" + +#include "swrast/swrast.h" + +#define DBG 0 + +#define LOCAL_VARS \ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \ + mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \ + __DRIscreenPrivate *driScreen = mmesa->driScreen; \ + __DRIdrawablePrivate *dPriv = mmesa->driDrawable; \ + GLuint pitch = mmesa->drawPitch * mach64Screen->cpp; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(driScreen->pFB + \ + mmesa->drawOffset + \ + (dPriv->x * mach64Screen->cpp) + \ + (dPriv->y * pitch)); \ + char *read_buf = (char *)(driScreen->pFB + \ + mmesa->readOffset + \ + (dPriv->x * mach64Screen->cpp) + \ + (dPriv->y * pitch)); \ + GLushort p; \ + (void) read_buf; (void) buf; (void) p + +#define LOCAL_DEPTH_VARS \ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); \ + mach64ScreenRec *mach64Screen = mmesa->mach64Screen; \ + __DRIdrawablePrivate *dPriv = mmesa->driDrawable; \ + __DRIscreenPrivate *driScreen = mmesa->driScreen; \ + GLuint pitch = mach64Screen->depthPitch * 2; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(driScreen->pFB + \ + mach64Screen->depthOffset + \ + dPriv->x * 2 + \ + dPriv->y * pitch) + +#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS + +#define Y_FLIP( _y ) (height - _y - 1) + +#define HW_LOCK() + +/* FIXME could/should we use dPriv->numClipRects like the other drivers? */ +#define HW_CLIPLOOP() \ + do { \ + int _nc = mmesa->numClipRects; \ + \ + while ( _nc-- ) { \ + int minx = mmesa->pClipRects[_nc].x1 - mmesa->drawX; \ + int miny = mmesa->pClipRects[_nc].y1 - mmesa->drawY; \ + int maxx = mmesa->pClipRects[_nc].x2 - mmesa->drawX; \ + int maxy = mmesa->pClipRects[_nc].y2 - mmesa->drawY; + +#define HW_ENDCLIPLOOP() \ + } \ + } while (0) + +#define HW_UNLOCK() + + + +/* ================================================================ + * Color buffer + */ + +/* 16 bit, RGB565 color spanline and pixel functions + */ +#define SPANTMP_PIXEL_FMT GL_RGB +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5 + +#define TAG(x) mach64##x##_RGB565 +#define TAG2(x,y) mach64##x##_RGB565##y +#include "spantmp2.h" + + +/* 32 bit, ARGB8888 color spanline and pixel functions + */ +/* FIXME the old code always read back alpha as 0xff, i.e. fully opaque. + Was there a reason to do so ? If so that'll won't work with that template... */ +#define SPANTMP_PIXEL_FMT GL_BGRA +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV + +#define TAG(x) mach64##x##_ARGB8888 +#define TAG2(x,y) mach64##x##_ARGB8888##y +#include "spantmp2.h" + + +/* ================================================================ + * Depth buffer + */ + +/* 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) mach64##x##_16 +#include "depthtmp.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 mach64DDSetBuffer( GLcontext *ctx, + GLframebuffer *colorBuffer, + GLuint bufferBit ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + + switch ( bufferBit ) { + case BUFFER_BIT_FRONT_LEFT: + if (MACH64_DEBUG & DEBUG_VERBOSE_MSG) + fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__); + mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->frontOffset; + mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->frontPitch; + break; + case BUFFER_BIT_BACK_LEFT: + if (MACH64_DEBUG & DEBUG_VERBOSE_MSG) + fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__); + mmesa->drawOffset = mmesa->readOffset = mmesa->mach64Screen->backOffset; + mmesa->drawPitch = mmesa->readPitch = mmesa->mach64Screen->backPitch; + break; + default: + break; + } +} + +static void mach64SpanRenderStart( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + LOCK_HARDWARE( mmesa ); + FINISH_DMA_LOCKED( mmesa ); +} + +static void mach64SpanRenderFinish( GLcontext *ctx ) +{ + mach64ContextPtr mmesa = MACH64_CONTEXT(ctx); + _swrast_flush( ctx ); + UNLOCK_HARDWARE( mmesa ); +} + +void mach64DDInitSpanFuncs( GLcontext *ctx ) +{ + struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + + swdd->SetBuffer = mach64DDSetBuffer; + swdd->SpanRenderStart = mach64SpanRenderStart; + swdd->SpanRenderFinish = mach64SpanRenderFinish; +} + + +/** + * Plug in the Get/Put routines for the given driRenderbuffer. + */ +void +mach64SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis) +{ + if (drb->Base.InternalFormat == GL_RGBA) { + if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { + mach64InitPointers_RGB565(&drb->Base); + } + else { + mach64InitPointers_ARGB8888(&drb->Base); + } + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { + drb->Base.GetRow = mach64ReadDepthSpan_16; + drb->Base.GetValues = mach64ReadDepthPixels_16; + drb->Base.PutRow = mach64WriteDepthSpan_16; + drb->Base.PutMonoRow = mach64WriteMonoDepthSpan_16; + drb->Base.PutValues = mach64WriteDepthPixels_16; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { + /* never */ + drb->Base.GetRow = NULL; + drb->Base.GetValues = NULL; + drb->Base.PutRow = NULL; + drb->Base.PutMonoRow = NULL; + drb->Base.PutValues = NULL; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { + /* never */ + drb->Base.GetRow = NULL; + drb->Base.GetValues = NULL; + drb->Base.PutRow = NULL; + drb->Base.PutMonoRow = NULL; + drb->Base.PutValues = NULL; + drb->Base.PutMonoValues = NULL; + } +} |