| /************************************************************************** |
| |
| 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_span.c,v 1.5 2001/03/21 16:14:26 dawes Exp $ */ |
| |
| /* |
| * Authors: |
| * Sung-Ching Lin <sclin@sis.com.tw> |
| * Eric Anholt <anholt@FreeBSD.org> |
| */ |
| |
| #include "sis_context.h" |
| #include "sis_span.h" |
| #include "sis_lock.h" |
| #include "sis_tris.h" |
| |
| #include "swrast/swrast.h" |
| |
| #define DBG 0 |
| |
| #define LOCAL_VARS \ |
| sisContextPtr smesa = SIS_CONTEXT(ctx); \ |
| __DRIdrawablePrivate *dPriv = smesa->driDrawable; \ |
| struct sis_renderbuffer *srb = (struct sis_renderbuffer *) rb; \ |
| GLuint pitch = srb->pitch; \ |
| char *buf = srb->map; \ |
| GLuint p; \ |
| (void) buf; (void) p; |
| |
| |
| #define LOCAL_DEPTH_VARS \ |
| sisContextPtr smesa = SIS_CONTEXT(ctx); \ |
| __DRIdrawablePrivate *dPriv = smesa->driDrawable; \ |
| struct sis_renderbuffer *srb = (struct sis_renderbuffer *) rb; \ |
| char *buf = srb->map; |
| |
| #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS |
| |
| #define HW_LOCK() do {} while(0); |
| |
| #define HW_UNLOCK() do {} while(0); |
| |
| /* RGB565 */ |
| #define SPANTMP_PIXEL_FMT GL_RGB |
| #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5 |
| |
| #define TAG(x) sis##x##_RGB565 |
| #define TAG2(x,y) sis##x##_RGB565##y |
| #include "spantmp2.h" |
| |
| |
| /* ARGB8888 */ |
| /* 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) sis##x##_ARGB8888 |
| #define TAG2(x,y) sis##x##_ARGB8888##y |
| #include "spantmp2.h" |
| |
| |
| /* 16 bit depthbuffer functions. |
| */ |
| #define VALUE_TYPE GLushort |
| |
| #define WRITE_DEPTH( _x, _y, d ) \ |
| *(GLushort *)(buf + (_x)*2 + (_y)*srb->pitch) = d; |
| |
| #define READ_DEPTH( d, _x, _y ) \ |
| d = *(GLushort *)(buf + (_x)*2 + (_y)*srb->pitch); |
| |
| #define TAG(x) sis##x##_z16 |
| #include "depthtmp.h" |
| |
| |
| /* 32 bit depthbuffer functions. |
| */ |
| #define VALUE_TYPE GLuint |
| |
| #define WRITE_DEPTH( _x, _y, d ) \ |
| *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch) = d; |
| |
| #define READ_DEPTH( d, _x, _y ) \ |
| d = *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch); |
| |
| #define TAG(x) sis##x##_z32 |
| #include "depthtmp.h" |
| |
| |
| /* 8/24 bit interleaved depth/stencil functions |
| */ |
| #define VALUE_TYPE GLuint |
| |
| #define WRITE_DEPTH( _x, _y, d ) { \ |
| GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch); \ |
| tmp &= 0xff000000; \ |
| tmp |= (d & 0x00ffffff); \ |
| *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch) = tmp; \ |
| } |
| |
| #define READ_DEPTH( d, _x, _y ) { \ |
| d = *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch) & 0x00ffffff; \ |
| } |
| |
| #define TAG(x) sis##x##_z24_s8 |
| #include "depthtmp.h" |
| |
| #define WRITE_STENCIL( _x, _y, d ) { \ |
| GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*smesa->depth.pitch); \ |
| tmp &= 0x00ffffff; \ |
| tmp |= (d << 24); \ |
| *(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch) = tmp; \ |
| } |
| |
| #define READ_STENCIL( d, _x, _y ) \ |
| d = (*(GLuint *)(buf + (_x)*4 + (_y)*srb->pitch) & 0xff000000) >> 24; |
| |
| #define TAG(x) sis##x##_z24_s8 |
| #include "stenciltmp.h" |
| |
| |
| |
| void sisSpanRenderStart( GLcontext *ctx ) |
| { |
| sisContextPtr smesa = SIS_CONTEXT(ctx); |
| |
| SIS_FIREVERTICES(smesa); |
| LOCK_HARDWARE(); |
| WaitEngIdle( smesa ); |
| } |
| |
| void sisSpanRenderFinish( GLcontext *ctx ) |
| { |
| sisContextPtr smesa = SIS_CONTEXT(ctx); |
| |
| _swrast_flush( ctx ); |
| UNLOCK_HARDWARE(); |
| } |
| |
| void |
| sisDDInitSpanFuncs( GLcontext *ctx ) |
| { |
| struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); |
| swdd->SpanRenderStart = sisSpanRenderStart; |
| swdd->SpanRenderFinish = sisSpanRenderFinish; |
| } |
| |
| |
| |
| /** |
| * Plug in the Get/Put routines for the given driRenderbuffer. |
| */ |
| void |
| sisSetSpanFunctions(struct sis_renderbuffer *srb, const GLvisual *vis) |
| { |
| if (srb->Base.InternalFormat == GL_RGBA) { |
| if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { |
| sisInitPointers_RGB565( &srb->Base ); |
| } |
| else { |
| sisInitPointers_ARGB8888( &srb->Base ); |
| } |
| } |
| else if (srb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { |
| sisInitDepthPointers_z16(&srb->Base); |
| } |
| else if (srb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { |
| sisInitDepthPointers_z24_s8(&srb->Base); |
| } |
| else if (srb->Base.InternalFormat == GL_DEPTH_COMPONENT32) { |
| sisInitDepthPointers_z32(&srb->Base); |
| } |
| else if (srb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { |
| sisInitStencilPointers_z24_s8(&srb->Base); |
| } |
| } |