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author | marha <marha@users.sourceforge.net> | 2012-06-08 14:29:46 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2012-06-08 14:50:37 +0200 |
commit | 72ec0e3bb2d7fc6b77b2a75873792f781679da6a (patch) | |
tree | 0a736ab9a8c26276929ab077dc661e3625b54884 /mesalib/src/mesa/tnl/t_vb_vertex.c | |
parent | 5e865910f0ce672295bd60460631339be5e311a0 (diff) | |
parent | 990bc3f015a4f8fce2eb918375defcd44980a845 (diff) | |
download | vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.gz vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.tar.bz2 vcxsrv-72ec0e3bb2d7fc6b77b2a75873792f781679da6a.zip |
Merge remote-tracking branch 'origin/released'
Conflicts:
fontconfig/.gitignore
libX11/src/ConvSel.c
libX11/src/CrGlCur.c
libX11/src/CrWindow.c
libX11/src/GetDflt.c
libX11/src/Window.c
libX11/src/xlibi18n/XimProto.h
libX11/src/xlibi18n/lcDynamic.c
libxcb/src/.gitignore
libxcb/src/xcb_ext.c
libxcb/src/xcb_xid.c
mesalib/src/glsl/.gitignore
mesalib/src/glsl/glcpp/.gitignore
mesalib/src/mapi/glapi/gen/glX_API.xml
mesalib/src/mapi/glapi/glapi_getproc.c
mesalib/src/mesa/main/.gitignore
mesalib/src/mesa/main/syncobj.c
mesalib/src/mesa/program/.gitignore
xkbcomp/listing.c
xkbcomp/xkbpath.c
xorg-server/.gitignore
xorg-server/Xext/xvmain.c
xorg-server/dix/dispatch.c
xorg-server/hw/xwin/glx/winpriv.h
xorg-server/hw/xwin/winprefsyacc.y
xorg-server/hw/xwin/winscrinit.c
xorg-server/xkeyboard-config/rules/bin/ml1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v1_s.sh
xorg-server/xkeyboard-config/rules/bin/ml1v_s.sh
xorg-server/xkeyboard-config/rules/bin/ml_s.sh
xorg-server/xkeyboard-config/rules/bin/mlv_s.sh
xorg-server/xkeyboard-config/rules/compat/.gitignore
Diffstat (limited to 'mesalib/src/mesa/tnl/t_vb_vertex.c')
-rw-r--r-- | mesalib/src/mesa/tnl/t_vb_vertex.c | 566 |
1 files changed, 283 insertions, 283 deletions
diff --git a/mesalib/src/mesa/tnl/t_vb_vertex.c b/mesalib/src/mesa/tnl/t_vb_vertex.c index a77959410..26e8ae065 100644 --- a/mesalib/src/mesa/tnl/t_vb_vertex.c +++ b/mesalib/src/mesa/tnl/t_vb_vertex.c @@ -1,283 +1,283 @@ -/*
- * Mesa 3-D graphics library
- * Version: 6.5
- *
- * Copyright (C) 1999-2006 Brian Paul 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 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
- * BRIAN PAUL 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 "main/glheader.h"
-#include "main/colormac.h"
-#include "main/macros.h"
-#include "main/imports.h"
-#include "main/mtypes.h"
-
-#include "math/m_xform.h"
-
-#include "t_context.h"
-#include "t_pipeline.h"
-
-
-
-struct vertex_stage_data {
- GLvector4f eye;
- GLvector4f clip;
- GLvector4f proj;
- GLubyte *clipmask;
- GLubyte ormask;
- GLubyte andmask;
-};
-
-#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->privatePtr)
-
-
-
-
-/* This function implements cliptesting for user-defined clip planes.
- * The clipping of primitives to these planes is implemented in
- * t_render_clip.h.
- */
-#define USER_CLIPTEST(NAME, SZ) \
-static void NAME( struct gl_context *ctx, \
- GLvector4f *clip, \
- GLubyte *clipmask, \
- GLubyte *clipormask, \
- GLubyte *clipandmask ) \
-{ \
- GLuint p; \
- \
- for (p = 0; p < ctx->Const.MaxClipPlanes; p++) \
- if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { \
- GLuint nr, i; \
- const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \
- const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \
- const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \
- const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \
- GLfloat *coord = (GLfloat *)clip->data; \
- GLuint stride = clip->stride; \
- GLuint count = clip->count; \
- \
- for (nr = 0, i = 0 ; i < count ; i++) { \
- GLfloat dp = coord[0] * a + coord[1] * b; \
- if (SZ > 2) dp += coord[2] * c; \
- if (SZ > 3) dp += coord[3] * d; else dp += d; \
- \
- if (dp < 0) { \
- nr++; \
- clipmask[i] |= CLIP_USER_BIT; \
- } \
- \
- STRIDE_F(coord, stride); \
- } \
- \
- if (nr > 0) { \
- *clipormask |= CLIP_USER_BIT; \
- if (nr == count) { \
- *clipandmask |= CLIP_USER_BIT; \
- return; \
- } \
- } \
- } \
-}
-
-
-USER_CLIPTEST(userclip2, 2)
-USER_CLIPTEST(userclip3, 3)
-USER_CLIPTEST(userclip4, 4)
-
-static void (*(usercliptab[5]))( struct gl_context *,
- GLvector4f *, GLubyte *,
- GLubyte *, GLubyte * ) =
-{
- NULL,
- NULL,
- userclip2,
- userclip3,
- userclip4
-};
-
-
-void
-tnl_clip_prepare(struct gl_context *ctx)
-{
- /* Neither the x86 nor sparc asm cliptest functions have been updated
- * for ARB_depth_clamp, so force the C paths.
- */
- if (ctx->Transform.DepthClamp) {
- static GLboolean c_funcs_installed = GL_FALSE;
- if (!c_funcs_installed) {
- init_c_cliptest();
- c_funcs_installed = GL_TRUE;
- }
- }
-}
-
-
-
-static GLboolean run_vertex_stage( struct gl_context *ctx,
- struct tnl_pipeline_stage *stage )
-{
- struct vertex_stage_data *store = (struct vertex_stage_data *)stage->privatePtr;
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
-
- if (ctx->VertexProgram._Current)
- return GL_TRUE;
-
- tnl_clip_prepare(ctx);
-
- if (ctx->_NeedEyeCoords) {
- /* Separate modelview transformation:
- * Use combined ModelProject to avoid some depth artifacts
- */
- if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY)
- VB->EyePtr = VB->AttribPtr[_TNL_ATTRIB_POS];
- else
- VB->EyePtr = TransformRaw( &store->eye,
- ctx->ModelviewMatrixStack.Top,
- VB->AttribPtr[_TNL_ATTRIB_POS]);
- }
-
- VB->ClipPtr = TransformRaw( &store->clip,
- &ctx->_ModelProjectMatrix,
- VB->AttribPtr[_TNL_ATTRIB_POS] );
-
- /* Drivers expect this to be clean to element 4...
- */
- switch (VB->ClipPtr->size) {
- case 1:
- /* impossible */
- case 2:
- _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
- /* fall-through */
- case 3:
- _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
- /* fall-through */
- case 4:
- break;
- }
-
-
- /* Cliptest and perspective divide. Clip functions must clear
- * the clipmask.
- */
- store->ormask = 0;
- store->andmask = CLIP_FRUSTUM_BITS;
-
- if (tnl->NeedNdcCoords) {
- VB->NdcPtr =
- _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
- &store->proj,
- store->clipmask,
- &store->ormask,
- &store->andmask,
- !ctx->Transform.DepthClamp );
- }
- else {
- VB->NdcPtr = NULL;
- _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr,
- NULL,
- store->clipmask,
- &store->ormask,
- &store->andmask,
- !ctx->Transform.DepthClamp );
- }
-
- if (store->andmask)
- return GL_FALSE;
-
-
- /* Test userclip planes. This contributes to VB->ClipMask, so
- * is essentially required to be in this stage.
- */
- if (ctx->Transform.ClipPlanesEnabled) {
- usercliptab[VB->ClipPtr->size]( ctx,
- VB->ClipPtr,
- store->clipmask,
- &store->ormask,
- &store->andmask );
-
- if (store->andmask)
- return GL_FALSE;
- }
-
- VB->ClipAndMask = store->andmask;
- VB->ClipOrMask = store->ormask;
- VB->ClipMask = store->clipmask;
-
- return GL_TRUE;
-}
-
-
-static GLboolean init_vertex_stage( struct gl_context *ctx,
- struct tnl_pipeline_stage *stage )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- struct vertex_stage_data *store;
- GLuint size = VB->Size;
-
- stage->privatePtr = CALLOC(sizeof(*store));
- store = VERTEX_STAGE_DATA(stage);
- if (!store)
- return GL_FALSE;
-
- _mesa_vector4f_alloc( &store->eye, 0, size, 32 );
- _mesa_vector4f_alloc( &store->clip, 0, size, 32 );
- _mesa_vector4f_alloc( &store->proj, 0, size, 32 );
-
- store->clipmask = (GLubyte *) _mesa_align_malloc(sizeof(GLubyte)*size, 32 );
-
- if (!store->clipmask ||
- !store->eye.data ||
- !store->clip.data ||
- !store->proj.data)
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-static void dtr( struct tnl_pipeline_stage *stage )
-{
- struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage);
-
- if (store) {
- _mesa_vector4f_free( &store->eye );
- _mesa_vector4f_free( &store->clip );
- _mesa_vector4f_free( &store->proj );
- _mesa_align_free( store->clipmask );
- FREE(store);
- stage->privatePtr = NULL;
- stage->run = init_vertex_stage;
- }
-}
-
-
-const struct tnl_pipeline_stage _tnl_vertex_transform_stage =
-{
- "modelview/project/cliptest/divide",
- NULL, /* private data */
- init_vertex_stage,
- dtr, /* destructor */
- NULL,
- run_vertex_stage /* run -- initially set to init */
-};
+/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2006 Brian Paul 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 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 + * BRIAN PAUL 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 "main/glheader.h" +#include "main/colormac.h" +#include "main/macros.h" +#include "main/imports.h" +#include "main/mtypes.h" + +#include "math/m_xform.h" + +#include "t_context.h" +#include "t_pipeline.h" + + + +struct vertex_stage_data { + GLvector4f eye; + GLvector4f clip; + GLvector4f proj; + GLubyte *clipmask; + GLubyte ormask; + GLubyte andmask; +}; + +#define VERTEX_STAGE_DATA(stage) ((struct vertex_stage_data *)stage->privatePtr) + + + + +/* This function implements cliptesting for user-defined clip planes. + * The clipping of primitives to these planes is implemented in + * t_render_clip.h. + */ +#define USER_CLIPTEST(NAME, SZ) \ +static void NAME( struct gl_context *ctx, \ + GLvector4f *clip, \ + GLubyte *clipmask, \ + GLubyte *clipormask, \ + GLubyte *clipandmask ) \ +{ \ + GLuint p; \ + \ + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) \ + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { \ + GLuint nr, i; \ + const GLfloat a = ctx->Transform._ClipUserPlane[p][0]; \ + const GLfloat b = ctx->Transform._ClipUserPlane[p][1]; \ + const GLfloat c = ctx->Transform._ClipUserPlane[p][2]; \ + const GLfloat d = ctx->Transform._ClipUserPlane[p][3]; \ + GLfloat *coord = (GLfloat *)clip->data; \ + GLuint stride = clip->stride; \ + GLuint count = clip->count; \ + \ + for (nr = 0, i = 0 ; i < count ; i++) { \ + GLfloat dp = coord[0] * a + coord[1] * b; \ + if (SZ > 2) dp += coord[2] * c; \ + if (SZ > 3) dp += coord[3] * d; else dp += d; \ + \ + if (dp < 0) { \ + nr++; \ + clipmask[i] |= CLIP_USER_BIT; \ + } \ + \ + STRIDE_F(coord, stride); \ + } \ + \ + if (nr > 0) { \ + *clipormask |= CLIP_USER_BIT; \ + if (nr == count) { \ + *clipandmask |= CLIP_USER_BIT; \ + return; \ + } \ + } \ + } \ +} + + +USER_CLIPTEST(userclip2, 2) +USER_CLIPTEST(userclip3, 3) +USER_CLIPTEST(userclip4, 4) + +static void (*(usercliptab[5]))( struct gl_context *, + GLvector4f *, GLubyte *, + GLubyte *, GLubyte * ) = +{ + NULL, + NULL, + userclip2, + userclip3, + userclip4 +}; + + +void +tnl_clip_prepare(struct gl_context *ctx) +{ + /* Neither the x86 nor sparc asm cliptest functions have been updated + * for ARB_depth_clamp, so force the C paths. + */ + if (ctx->Transform.DepthClamp) { + static GLboolean c_funcs_installed = GL_FALSE; + if (!c_funcs_installed) { + init_c_cliptest(); + c_funcs_installed = GL_TRUE; + } + } +} + + + +static GLboolean run_vertex_stage( struct gl_context *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_stage_data *store = (struct vertex_stage_data *)stage->privatePtr; + TNLcontext *tnl = TNL_CONTEXT(ctx); + struct vertex_buffer *VB = &tnl->vb; + + if (ctx->VertexProgram._Current) + return GL_TRUE; + + tnl_clip_prepare(ctx); + + if (ctx->_NeedEyeCoords) { + /* Separate modelview transformation: + * Use combined ModelProject to avoid some depth artifacts + */ + if (ctx->ModelviewMatrixStack.Top->type == MATRIX_IDENTITY) + VB->EyePtr = VB->AttribPtr[_TNL_ATTRIB_POS]; + else + VB->EyePtr = TransformRaw( &store->eye, + ctx->ModelviewMatrixStack.Top, + VB->AttribPtr[_TNL_ATTRIB_POS]); + } + + VB->ClipPtr = TransformRaw( &store->clip, + &ctx->_ModelProjectMatrix, + VB->AttribPtr[_TNL_ATTRIB_POS] ); + + /* Drivers expect this to be clean to element 4... + */ + switch (VB->ClipPtr->size) { + case 1: + /* impossible */ + case 2: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 ); + /* fall-through */ + case 3: + _mesa_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 ); + /* fall-through */ + case 4: + break; + } + + + /* Cliptest and perspective divide. Clip functions must clear + * the clipmask. + */ + store->ormask = 0; + store->andmask = CLIP_FRUSTUM_BITS; + + if (tnl->NeedNdcCoords) { + VB->NdcPtr = + _mesa_clip_tab[VB->ClipPtr->size]( VB->ClipPtr, + &store->proj, + store->clipmask, + &store->ormask, + &store->andmask, + !ctx->Transform.DepthClamp ); + } + else { + VB->NdcPtr = NULL; + _mesa_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr, + NULL, + store->clipmask, + &store->ormask, + &store->andmask, + !ctx->Transform.DepthClamp ); + } + + if (store->andmask) + return GL_FALSE; + + + /* Test userclip planes. This contributes to VB->ClipMask, so + * is essentially required to be in this stage. + */ + if (ctx->Transform.ClipPlanesEnabled) { + usercliptab[VB->ClipPtr->size]( ctx, + VB->ClipPtr, + store->clipmask, + &store->ormask, + &store->andmask ); + + if (store->andmask) + return GL_FALSE; + } + + VB->ClipAndMask = store->andmask; + VB->ClipOrMask = store->ormask; + VB->ClipMask = store->clipmask; + + return GL_TRUE; +} + + +static GLboolean init_vertex_stage( struct gl_context *ctx, + struct tnl_pipeline_stage *stage ) +{ + struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; + struct vertex_stage_data *store; + GLuint size = VB->Size; + + stage->privatePtr = CALLOC(sizeof(*store)); + store = VERTEX_STAGE_DATA(stage); + if (!store) + return GL_FALSE; + + _mesa_vector4f_alloc( &store->eye, 0, size, 32 ); + _mesa_vector4f_alloc( &store->clip, 0, size, 32 ); + _mesa_vector4f_alloc( &store->proj, 0, size, 32 ); + + store->clipmask = (GLubyte *) _mesa_align_malloc(sizeof(GLubyte)*size, 32 ); + + if (!store->clipmask || + !store->eye.data || + !store->clip.data || + !store->proj.data) + return GL_FALSE; + + return GL_TRUE; +} + +static void dtr( struct tnl_pipeline_stage *stage ) +{ + struct vertex_stage_data *store = VERTEX_STAGE_DATA(stage); + + if (store) { + _mesa_vector4f_free( &store->eye ); + _mesa_vector4f_free( &store->clip ); + _mesa_vector4f_free( &store->proj ); + _mesa_align_free( store->clipmask ); + FREE(store); + stage->privatePtr = NULL; + stage->run = init_vertex_stage; + } +} + + +const struct tnl_pipeline_stage _tnl_vertex_transform_stage = +{ + "modelview/project/cliptest/divide", + NULL, /* private data */ + init_vertex_stage, + dtr, /* destructor */ + NULL, + run_vertex_stage /* run -- initially set to init */ +}; |