diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_dd.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_dd.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_dd.c b/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_dd.c new file mode 100644 index 000000000..2617980cc --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/sis/sis_dd.c @@ -0,0 +1,181 @@ +/************************************************************************** + +Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan. +Copyright 2003 Eric Anholt +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 +ERIC ANHOLT OR SILICON INTEGRATED SYSTEMS CORP 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. + +**************************************************************************/ +/* $XFree86: xc/lib/GL/mesa/src/drv/sis/sis_ctx.c,v 1.3 2000/09/26 15:56:48 tsi Exp $ */ + +/* + * Authors: + * Sung-Ching Lin <sclin@sis.com.tw> + * Eric Anholt <anholt@FreeBSD.org> + * + */ + +#include "sis_context.h" +#include "sis_dd.h" +#include "sis_lock.h" +#include "sis_alloc.h" +#include "sis_state.h" +#include "sis_tris.h" + +#include "swrast/swrast.h" +#include "framebuffer.h" + +#include "utils.h" + +#define DRIVER_DATE "20051019" + +/* Return the width and height of the given buffer. + */ +static void +sisGetBufferSize( GLframebuffer *buffer, + GLuint *width, GLuint *height ) +{ + GET_CURRENT_CONTEXT(ctx); + sisContextPtr smesa = SIS_CONTEXT(ctx); + + LOCK_HARDWARE(); + *width = smesa->driDrawable->w; + *height = smesa->driDrawable->h; + UNLOCK_HARDWARE(); +} + +/* Return various strings for glGetString(). + */ +static const GLubyte * +sisGetString( GLcontext *ctx, GLenum name ) +{ + sisContextPtr smesa = SIS_CONTEXT(ctx); + static char buffer[128]; + unsigned offset; + GLuint agp_mode = (smesa->AGPSize > 0); + + switch ( name ) + { + case GL_VENDOR: + return (GLubyte *)"Eric Anholt"; + + case GL_RENDERER: + offset = driGetRendererString( buffer, "SiS", DRIVER_DATE, agp_mode ); + + return (GLubyte *)buffer; + + default: + return NULL; + } +} + +/* Send all commands to the hardware. + */ +static void +sisFlush( GLcontext *ctx ) +{ + sisContextPtr smesa = SIS_CONTEXT(ctx); + + SIS_FIREVERTICES(smesa); +} + +/* Make sure all commands have been sent to the hardware and have + * completed processing. + */ +static void +sisFinish( GLcontext *ctx ) +{ + sisContextPtr smesa = SIS_CONTEXT(ctx); + + SIS_FIREVERTICES(smesa); + LOCK_HARDWARE(); + WaitEngIdle( smesa ); + UNLOCK_HARDWARE(); +} + +void +sisUpdateBufferSize( sisContextPtr smesa ) +{ + __GLSiSHardware *current = &smesa->current; + __GLSiSHardware *prev = &smesa->prev; + GLuint z_depth; + + /* XXX Should get the base offset of the frontbuffer from the X Server */ + smesa->frontOffset = smesa->driDrawable->x * smesa->bytesPerPixel + + smesa->driDrawable->y * smesa->frontPitch; + + if ( smesa->width == smesa->driDrawable->w && + smesa->height == smesa->driDrawable->h ) + { + return; + } + + smesa->width = smesa->driDrawable->w; + smesa->height = smesa->driDrawable->h; + smesa->bottom = smesa->height - 1; + + if ( smesa->backbuffer ) + sisFreeBackbuffer( smesa ); + if ( smesa->depthbuffer ) + sisFreeZStencilBuffer( smesa ); + + if ( smesa->glCtx->Visual.depthBits > 0 ) + sisAllocZStencilBuffer( smesa ); + if ( smesa->glCtx->Visual.doubleBufferMode ) + sisAllocBackbuffer( smesa ); + + switch (smesa->zFormat) + { + case SiS_ZFORMAT_Z16: + z_depth = 2; + break; + case SiS_ZFORMAT_Z32: + case SiS_ZFORMAT_S8Z24: + z_depth = 4; + break; + default: + sis_fatal_error("Bad Z format\n"); + } + + current->hwZ &= ~MASK_ZBufferPitch; + current->hwZ |= smesa->width * z_depth >> 2; + current->hwOffsetZ = smesa->depthOffset >> 2; + + if ((current->hwOffsetZ != prev->hwOffsetZ) || (current->hwZ != prev->hwZ)) { + prev->hwOffsetZ = current->hwOffsetZ; + prev->hwZ = current->hwZ; + smesa->GlobalFlag |= GFLAG_ZSETTING; + } + + sisUpdateClipping( smesa->glCtx ); +} + +/* Initialize the driver's misc functions. + */ +void +sisInitDriverFuncs( struct dd_function_table *functions ) +{ + functions->GetBufferSize = sisGetBufferSize; + functions->ResizeBuffers = _mesa_resize_framebuffer; + functions->GetString = sisGetString; + functions->Finish = sisFinish; + functions->Flush = sisFlush; +} |