diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_span.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_span.c | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_span.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_span.c new file mode 100644 index 000000000..024e89461 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/r200/r200_span.c @@ -0,0 +1,367 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_span.c,v 1.1 2002/10/30 12:51:52 alanh Exp $ */ +/* +Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. + +The Weather Channel (TM) funded Tungsten Graphics to develop the +initial release of the Radeon 8500 driver under the XFree86 license. +This notice must be preserved. + +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 THE COPYRIGHT OWNER(S) 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. + +**************************************************************************/ + +/* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "glheader.h" +#include "imports.h" +#include "swrast/swrast.h" +#include "colormac.h" + +#include "r200_context.h" +#include "r200_ioctl.h" +#include "r200_state.h" +#include "r200_span.h" +#include "r200_tex.h" + +#define DBG 0 + +#define LOCAL_VARS \ + r200ContextPtr rmesa = R200_CONTEXT(ctx); \ + r200ScreenPtr r200Screen = rmesa->r200Screen; \ + __DRIscreenPrivate *sPriv = rmesa->dri.screen; \ + __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; \ + GLuint pitch = r200Screen->frontPitch * r200Screen->cpp; \ + GLuint height = dPriv->h; \ + char *buf = (char *)(sPriv->pFB + \ + rmesa->state.color.drawOffset + \ + (dPriv->x * r200Screen->cpp) + \ + (dPriv->y * pitch)); \ + char *read_buf = (char *)(sPriv->pFB + \ + rmesa->state.pixel.readOffset + \ + (dPriv->x * r200Screen->cpp) + \ + (dPriv->y * pitch)); \ + GLuint p; \ + (void) read_buf; (void) buf; (void) p + +#define LOCAL_DEPTH_VARS \ + r200ContextPtr rmesa = R200_CONTEXT(ctx); \ + r200ScreenPtr r200Screen = rmesa->r200Screen; \ + __DRIscreenPrivate *sPriv = rmesa->dri.screen; \ + __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; \ + GLuint height = dPriv->h; \ + GLuint xo = dPriv->x; \ + GLuint yo = dPriv->y; \ + char *buf = (char *)(sPriv->pFB + r200Screen->depthOffset); \ + (void) buf + +#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) r200##x##_RGB565 +#define TAG2(x,y) r200##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) r200##x##_ARGB8888 +#define TAG2(x,y) r200##x##_ARGB8888##y +#include "spantmp2.h" + + +/* ================================================================ + * Depth buffer + */ + +/* The Radeon family has depth tiling on all the time, so we have to convert + * the x,y coordinates into the memory bus address (mba) in the same + * manner as the engine. In each case, the linear block address (ba) + * is calculated, and then wired with x and y to produce the final + * memory address. + * The chip will do address translation on its own if the surface registers + * are set up correctly. It is not quite enough to get it working with hyperz too... + */ + +#define BIT(x,b) ((x & (1<<b))>>b) +static GLuint r200_mba_z32( r200ContextPtr rmesa, + GLint x, GLint y ) +{ + GLuint pitch = rmesa->r200Screen->frontPitch; + if (rmesa->r200Screen->depthHasSurface) { + return 4*(x + y*pitch); + } + else { + GLuint b = ((y & 0x7FF) >> 4) * ((pitch & 0xFFF) >> 5) + ((x & 0x7FF) >> 5); + GLuint a = + (BIT(x,0) << 2) | + (BIT(y,0) << 3) | + (BIT(x,1) << 4) | + (BIT(y,1) << 5) | + (BIT(x,3) << 6) | + (BIT(x,4) << 7) | + (BIT(x,2) << 8) | + (BIT(y,2) << 9) | + (BIT(y,3) << 10) | + (((pitch & 0x20) ? (b & 0x01) : ((b & 0x01) ^ (BIT(y,4)))) << 11) | + ((b >> 1) << 12); + return a; + } +} + +static GLuint r200_mba_z16( r200ContextPtr rmesa, GLint x, GLint y ) +{ + GLuint pitch = rmesa->r200Screen->frontPitch; + if (rmesa->r200Screen->depthHasSurface) { + return 2*(x + y*pitch); + } + else { + GLuint b = ((y & 0x7FF) >> 4) * ((pitch & 0xFFF) >> 6) + ((x & 0x7FF) >> 6); + GLuint a = + (BIT(x,0) << 1) | + (BIT(y,0) << 2) | + (BIT(x,1) << 3) | + (BIT(y,1) << 4) | + (BIT(x,2) << 5) | + (BIT(x,4) << 6) | + (BIT(x,5) << 7) | + (BIT(x,3) << 8) | + (BIT(y,2) << 9) | + (BIT(y,3) << 10) | + (((pitch & 0x40) ? (b & 0x01) : ((b & 0x01) ^ (BIT(y,4)))) << 11) | + ((b >> 1) << 12); + return a; + } +} + + +/* 16-bit depth buffer functions + */ + +#define WRITE_DEPTH( _x, _y, d ) \ + *(GLushort *)(buf + r200_mba_z16( rmesa, _x + xo, _y + yo )) = d; + +#define READ_DEPTH( d, _x, _y ) \ + d = *(GLushort *)(buf + r200_mba_z16( rmesa, _x + xo, _y + yo )); + +#define TAG(x) r200##x##_16 +#include "depthtmp.h" + + +/* 24 bit depth, 8 bit stencil depthbuffer functions + */ + +#define WRITE_DEPTH( _x, _y, d ) \ +do { \ + GLuint offset = r200_mba_z32( rmesa, _x + xo, _y + yo ); \ + GLuint tmp = *(GLuint *)(buf + offset); \ + tmp &= 0xff000000; \ + tmp |= ((d) & 0x00ffffff); \ + *(GLuint *)(buf + offset) = tmp; \ +} while (0) + +#define READ_DEPTH( d, _x, _y ) \ + d = *(GLuint *)(buf + r200_mba_z32( rmesa, _x + xo, \ + _y + yo )) & 0x00ffffff; + +#define TAG(x) r200##x##_24_8 +#include "depthtmp.h" + + +/* ================================================================ + * Stencil buffer + */ + +/* 24 bit depth, 8 bit stencil depthbuffer functions + */ +#define WRITE_STENCIL( _x, _y, d ) \ +do { \ + GLuint offset = r200_mba_z32( rmesa, _x + xo, _y + yo ); \ + GLuint tmp = *(GLuint *)(buf + offset); \ + tmp &= 0x00ffffff; \ + tmp |= (((d) & 0xff) << 24); \ + *(GLuint *)(buf + offset) = tmp; \ +} while (0) + +#define READ_STENCIL( d, _x, _y ) \ +do { \ + GLuint offset = r200_mba_z32( rmesa, _x + xo, _y + yo ); \ + GLuint tmp = *(GLuint *)(buf + offset); \ + tmp &= 0xff000000; \ + d = tmp >> 24; \ +} while (0) + +#define TAG(x) r200##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 r200SetBuffer( GLcontext *ctx, + GLframebuffer *colorBuffer, + GLuint bufferBit ) +{ + r200ContextPtr rmesa = R200_CONTEXT(ctx); + + switch ( bufferBit ) { + case BUFFER_BIT_FRONT_LEFT: + if ( rmesa->doPageFlip && rmesa->sarea->pfCurrentPage == 1 ) { + rmesa->state.pixel.readOffset = rmesa->r200Screen->backOffset; + rmesa->state.pixel.readPitch = rmesa->r200Screen->backPitch; + rmesa->state.color.drawOffset = rmesa->r200Screen->backOffset; + rmesa->state.color.drawPitch = rmesa->r200Screen->backPitch; + } else { + rmesa->state.pixel.readOffset = rmesa->r200Screen->frontOffset; + rmesa->state.pixel.readPitch = rmesa->r200Screen->frontPitch; + rmesa->state.color.drawOffset = rmesa->r200Screen->frontOffset; + rmesa->state.color.drawPitch = rmesa->r200Screen->frontPitch; + } + break; + case BUFFER_BIT_BACK_LEFT: + if ( rmesa->doPageFlip && rmesa->sarea->pfCurrentPage == 1 ) { + rmesa->state.pixel.readOffset = rmesa->r200Screen->frontOffset; + rmesa->state.pixel.readPitch = rmesa->r200Screen->frontPitch; + rmesa->state.color.drawOffset = rmesa->r200Screen->frontOffset; + rmesa->state.color.drawPitch = rmesa->r200Screen->frontPitch; + } else { + rmesa->state.pixel.readOffset = rmesa->r200Screen->backOffset; + rmesa->state.pixel.readPitch = rmesa->r200Screen->backPitch; + rmesa->state.color.drawOffset = rmesa->r200Screen->backOffset; + rmesa->state.color.drawPitch = rmesa->r200Screen->backPitch; + } + break; + default: + _mesa_problem(ctx, "Bad bufferBit in %s", __FUNCTION__); + break; + } +} + +/* Move locking out to get reasonable span performance (10x better + * than doing this in HW_LOCK above). WaitForIdle() is the main + * culprit. + */ + +static void r200SpanRenderStart( GLcontext *ctx ) +{ + r200ContextPtr rmesa = R200_CONTEXT( ctx ); + + R200_FIREVERTICES( rmesa ); + LOCK_HARDWARE( rmesa ); + r200WaitForIdleLocked( rmesa ); + + /* Read & rewrite the first pixel in the frame buffer. This should + * be a noop, right? In fact without this conform fails as reading + * from the framebuffer sometimes produces old results -- the + * on-card read cache gets mixed up and doesn't notice that the + * framebuffer has been updated. + * + * In the worst case this is buggy too as p might get the wrong + * value first time, so really need a hidden pixel somewhere for this. + */ + { + int p; + volatile int *read_buf = (volatile int *)(rmesa->dri.screen->pFB + + rmesa->state.pixel.readOffset); + p = *read_buf; + *read_buf = p; + } +} + +static void r200SpanRenderFinish( GLcontext *ctx ) +{ + r200ContextPtr rmesa = R200_CONTEXT( ctx ); + _swrast_flush( ctx ); + UNLOCK_HARDWARE( rmesa ); +} + +void r200InitSpanFuncs( GLcontext *ctx ) +{ + struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); + + swdd->SetBuffer = r200SetBuffer; + swdd->SpanRenderStart = r200SpanRenderStart; + swdd->SpanRenderFinish = r200SpanRenderFinish; +} + + + +/** + * Plug in the Get/Put routines for the given driRenderbuffer. + */ +void +r200SetSpanFunctions(driRenderbuffer *drb, const GLvisual *vis) +{ + if (drb->Base.InternalFormat == GL_RGBA) { + if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { + r200InitPointers_RGB565(&drb->Base); + } + else { + r200InitPointers_ARGB8888(&drb->Base); + } + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { + drb->Base.GetRow = r200ReadDepthSpan_16; + drb->Base.GetValues = r200ReadDepthPixels_16; + drb->Base.PutRow = r200WriteDepthSpan_16; + drb->Base.PutMonoRow = r200WriteMonoDepthSpan_16; + drb->Base.PutValues = r200WriteDepthPixels_16; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { + drb->Base.GetRow = r200ReadDepthSpan_24_8; + drb->Base.GetValues = r200ReadDepthPixels_24_8; + drb->Base.PutRow = r200WriteDepthSpan_24_8; + drb->Base.PutMonoRow = r200WriteMonoDepthSpan_24_8; + drb->Base.PutValues = r200WriteDepthPixels_24_8; + drb->Base.PutMonoValues = NULL; + } + else if (drb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { + drb->Base.GetRow = r200ReadStencilSpan_24_8; + drb->Base.GetValues = r200ReadStencilPixels_24_8; + drb->Base.PutRow = r200WriteStencilSpan_24_8; + drb->Base.PutMonoRow = r200WriteMonoStencilSpan_24_8; + drb->Base.PutValues = r200WriteStencilPixels_24_8; + drb->Base.PutMonoValues = NULL; + } +} |