diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_span.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_span.c | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_span.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_span.c new file mode 100644 index 000000000..fd4722b3b --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r128/r128_span.c @@ -0,0 +1,368 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/r128/r128_span.c,v 1.8 2002/10/30 12:51:39 alanh Exp $ */ +/************************************************************************** + +Copyright 1999, 2000 ATI Technologies Inc. and Precision Insight, 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 +on 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 +ATI, PRECISION INSIGHT AND/OR THEIR 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. + +**************************************************************************/ + +/* + * Authors: + * Gareth Hughes <gareth@valinux.com> + * Keith Whitwell <keith@tungstengraphics.com> + * Kevin E. Martin <martin@valinux.com> + * + */ + +#include "r128_context.h" +#include "r128_ioctl.h" +#include "r128_state.h" +#include "r128_span.h" +#include "r128_tex.h" + +#include "swrast/swrast.h" + +#define DBG 0 + +#define HAVE_HW_DEPTH_SPANS 1 +#define HAVE_HW_DEPTH_PIXELS 1 + +#define LOCAL_VARS \ + r128ContextPtr rmesa = R128_CONTEXT(ctx); \ + r128ScreenPtr r128scrn = rmesa->r128Screen; \ + __DRIscreenPrivate *sPriv = rmesa->driScreen; \ + __DRIdrawablePrivate *dPriv = rmesa->driDrawable; \ + GLuint pitch = r128scrn->frontPitch * r128scrn->cpp; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(sPriv->pFB + \ + rmesa->drawOffset + \ + (dPriv->x * r128scrn->cpp) + \ + (dPriv->y * pitch)); \ + char *read_buf = (char *)(sPriv->pFB + \ + rmesa->readOffset + \ + (dPriv->x * r128scrn->cpp) + \ + (dPriv->y * pitch)); \ + GLuint p; \ + (void) read_buf; (void) buf; (void) p + +#define LOCAL_DEPTH_VARS \ + r128ContextPtr rmesa = R128_CONTEXT(ctx); \ + r128ScreenPtr r128scrn = rmesa->r128Screen; \ + __DRIscreenPrivate *sPriv = rmesa->driScreen; \ + __DRIdrawablePrivate *dPriv = rmesa->driDrawable; \ + GLuint height = dPriv->h; \ + (void) r128scrn; (void) sPriv; (void) height + +#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS + +#define Y_FLIP( _y ) (height - _y - 1) + +#define HW_LOCK() + +#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) r128##x##_RGB565 +#define TAG2(x,y) r128##x##_RGB565##y +#include "spantmp2.h" + + +/* 32 bit, ARGB8888 color spanline and pixel functions + */ +#define SPANTMP_PIXEL_FMT GL_BGRA +#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV + +#define TAG(x) r128##x##_ARGB8888 +#define TAG2(x,y) r128##x##_ARGB8888##y +#include "spantmp2.h" + + +/* ================================================================ + * Depth buffer + */ + +/* 16-bit depth buffer functions + */ + +#define WRITE_DEPTH_SPAN() \ + r128WriteDepthSpanLocked( rmesa, n, \ + x + dPriv->x, \ + y + dPriv->y, \ + depth, mask ); + +#define WRITE_DEPTH_PIXELS() \ +do { \ + GLint ox[MAX_WIDTH]; \ + GLint oy[MAX_WIDTH]; \ + for ( i = 0 ; i < n ; i++ ) { \ + ox[i] = x[i] + dPriv->x; \ + oy[i] = Y_FLIP( y[i] ) + dPriv->y; \ + } \ + r128WriteDepthPixelsLocked( rmesa, n, ox, oy, depth, mask ); \ +} while (0) + +#define READ_DEPTH_SPAN() \ +do { \ + GLushort *buf = (GLushort *)((GLubyte *)sPriv->pFB + \ + r128scrn->spanOffset); \ + GLint i; \ + \ + r128ReadDepthSpanLocked( rmesa, n, \ + x + dPriv->x, \ + y + dPriv->y ); \ + r128WaitForIdleLocked( rmesa ); \ + \ + for ( i = 0 ; i < n ; i++ ) { \ + depth[i] = buf[i]; \ + } \ +} while (0) + +#define READ_DEPTH_PIXELS() \ +do { \ + GLushort *buf = (GLushort *)((GLubyte *)sPriv->pFB + \ + r128scrn->spanOffset); \ + GLint i, remaining = n; \ + \ + while ( remaining > 0 ) { \ + GLint ox[128]; \ + GLint oy[128]; \ + GLint count; \ + \ + if ( remaining <= 128 ) { \ + count = remaining; \ + } else { \ + count = 128; \ + } \ + for ( i = 0 ; i < count ; i++ ) { \ + ox[i] = x[i] + dPriv->x; \ + oy[i] = Y_FLIP( y[i] ) + dPriv->y; \ + } \ + \ + r128ReadDepthPixelsLocked( rmesa, count, ox, oy ); \ + r128WaitForIdleLocked( rmesa ); \ + \ + for ( i = 0 ; i < count ; i++ ) { \ + depth[i] = buf[i]; \ + } \ + depth += count; \ + x += count; \ + y += count; \ + remaining -= count; \ + } \ +} while (0) + +#define TAG(x) r128##x##_16 +#include "depthtmp.h" + + +/* 24-bit depth, 8-bit stencil buffer functions + */ +#define WRITE_DEPTH_SPAN() \ + r128WriteDepthSpanLocked( rmesa, n, \ + x + dPriv->x, \ + y + dPriv->y, \ + depth, mask ); + +#define WRITE_DEPTH_PIXELS() \ +do { \ + GLint ox[MAX_WIDTH]; \ + GLint oy[MAX_WIDTH]; \ + for ( i = 0 ; i < n ; i++ ) { \ + ox[i] = x[i] + dPriv->x; \ + oy[i] = Y_FLIP( y[i] ) + dPriv->y; \ + } \ + r128WriteDepthPixelsLocked( rmesa, n, ox, oy, depth, mask ); \ +} while (0) + +#define READ_DEPTH_SPAN() \ +do { \ + GLuint *buf = (GLuint *)((GLubyte *)sPriv->pFB + \ + r128scrn->spanOffset); \ + GLint i; \ + \ + r128ReadDepthSpanLocked( rmesa, n, \ + x + dPriv->x, \ + y + dPriv->y ); \ + r128WaitForIdleLocked( rmesa ); \ + \ + for ( i = 0 ; i < n ; i++ ) { \ + depth[i] = buf[i] & 0x00ffffff; \ + } \ +} while (0) + +#define READ_DEPTH_PIXELS() \ +do { \ + GLuint *buf = (GLuint *)((GLubyte *)sPriv->pFB + \ + r128scrn->spanOffset); \ + GLint i, remaining = n; \ + \ + while ( remaining > 0 ) { \ + GLint ox[128]; \ + GLint oy[128]; \ + GLint count; \ + \ + if ( remaining <= 128 ) { \ + count = remaining; \ + } else { \ + count = 128; \ + } \ + for ( i = 0 ; i < count ; i++ ) { \ + ox[i] = x[i] + dPriv->x; \ + oy[i] = Y_FLIP( y[i] ) + dPriv->y; \ + } \ + \ + r128ReadDepthPixelsLocked( rmesa, count, ox, oy ); \ + r128WaitForIdleLocked( rmesa ); \ + \ + for ( i = 0 ; i < count ; i++ ) { \ + depth[i] = buf[i] & 0x00ffffff; \ + } \ + depth += count; \ + x += count; \ + y += count; \ + remaining -= count; \ + } \ +} while (0) + +#define TAG(x) r128##x##_24_8 +#include "depthtmp.h" + + + +/* ================================================================ + * Stencil buffer + */ + +/* FIXME: Add support for hardware stencil buffers. + */ + +/* + * 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 r128DDSetBuffer( GLcontext *ctx, + GLframebuffer *colorBuffer, + GLuint bufferBit ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + + switch ( bufferBit ) { + case BUFFER_BIT_FRONT_LEFT: + if ( rmesa->sarea->pfCurrentPage == 1 ) { + rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->backOffset; + rmesa->drawPitch = rmesa->readPitch = rmesa->r128Screen->backPitch; + } else { + rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->frontOffset; + rmesa->drawPitch = rmesa->readPitch = rmesa->r128Screen->frontPitch; + } + break; + case BUFFER_BIT_BACK_LEFT: + if ( rmesa->sarea->pfCurrentPage == 1 ) { + rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->frontOffset; + rmesa->drawPitch = rmesa->readPitch = rmesa->r128Screen->frontPitch; + } else { + rmesa->drawOffset = rmesa->readOffset = rmesa->r128Screen->backOffset; + rmesa->drawPitch = rmesa->readPitch = rmesa->r128Screen->backPitch; + } + break; + default: + break; + } +} + +void r128SpanRenderStart( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + FLUSH_BATCH(rmesa); + LOCK_HARDWARE(rmesa); + r128WaitForIdleLocked( rmesa ); +} + +void r128SpanRenderFinish( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + _swrast_flush( ctx ); + UNLOCK_HARDWARE( rmesa ); +} + +void r128DDInitSpanFuncs( GLcontext *ctx ) +{ + r128ContextPtr rmesa = R128_CONTEXT(ctx); + struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + + swdd->SetBuffer = r128DDSetBuffer; + swdd->SpanRenderStart = r128SpanRenderStart; + swdd->SpanRenderFinish = r128SpanRenderFinish; +} + + +/** + * Plug in the Get/Put routines for the given driRenderbuffer. + */ +void +r128SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis) +{ + if (drb->Base.InternalFormat == GL_RGBA) { + if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { + r128InitPointers_RGB565(&drb->Base); + } + else { + r128InitPointers_ARGB8888(&drb->Base); + } + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { + drb->Base.GetRow = r128ReadDepthSpan_16; + drb->Base.GetValues = r128ReadDepthPixels_16; + drb->Base.PutRow = r128WriteDepthSpan_16; + drb->Base.PutMonoRow = r128WriteMonoDepthSpan_16; + drb->Base.PutValues = r128WriteDepthPixels_16; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { + drb->Base.GetRow = r128ReadDepthSpan_24_8; + drb->Base.GetValues = r128ReadDepthPixels_24_8; + drb->Base.PutRow = r128WriteDepthSpan_24_8; + drb->Base.PutMonoRow = r128WriteMonoDepthSpan_24_8; + drb->Base.PutValues = r128WriteDepthPixels_24_8; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { + drb->Base.GetRow = NULL; + drb->Base.GetValues = NULL; + drb->Base.PutRow = NULL; + drb->Base.PutMonoRow = NULL; + drb->Base.PutValues = NULL; + drb->Base.PutMonoValues = NULL; + } +} |