diff options
Diffstat (limited to 'mesalib/src/mesa/swrast_setup')
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/NOTES | 65 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_context.c | 612 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_triangle.c | 530 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_triangle.h | 76 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_tritmp.h | 496 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/ss_vb.h | 74 | ||||
| -rw-r--r-- | mesalib/src/mesa/swrast_setup/swrast_setup.h | 122 |
7 files changed, 1020 insertions, 955 deletions
diff --git a/mesalib/src/mesa/swrast_setup/NOTES b/mesalib/src/mesa/swrast_setup/NOTES new file mode 100644 index 000000000..b5d2c503e --- /dev/null +++ b/mesalib/src/mesa/swrast_setup/NOTES @@ -0,0 +1,65 @@ +INTRODUCTION
+
+A helper module which provides glue to bind the software rasterizer to
+the software t&l module. The main task of this module is to build
+swrast vertices from the t&l vertex_buffer structs, and to use them to
+perform triangle setup functions not implemented in the software
+rasterizer.
+
+The module implements a full set of functions to plug into the
+t_vb_render.c driver interface (tnl->Driver.Render.*).
+
+There are strong advantages to decoupling the software rasterizer from
+the t&l module, primarily allowing hardware drivers better control
+over fallbacks, the removal of implicit knowledge about the software
+rasterizer in the t&l module, allowing the two modules to evolve
+independently and allowing either to be substituted with equivalent
+functionality from another codebase.
+
+This module implements triangle/quad setup for offset, unfilled and
+twoside-lit triangles. The software rasterizer doesn't handle these
+primitives directly.
+
+Hardware rasterization drivers typically use this module in situations
+where no hardware rasterization is possible, ie during total
+fallbacks.
+
+STATE
+
+To create and destroy the module:
+
+ GLboolean _swsetup_CreateContext( struct gl_context *ctx );
+ void _swsetup_DestroyContext( struct gl_context *ctx );
+
+The module is not active by default, and must be installed by calling
+_swrast_Wakeup(). This function installs internal swrast_setup
+functions into all the tnl->Driver.Render driver hooks, thus taking
+over the task of rasterization entirely:
+
+ void _swrast_Wakeup( struct gl_context *ctx );
+
+
+This module tracks state changes internally and maintains derived
+values based on the current state. For this to work, the driver
+ensure the following funciton is called whenever the state changes and
+the swsetup module is 'awake':
+
+ void _swsetup_InvalidateState( struct gl_context *ctx, GLuint new_state );
+
+There is no explicit call to put the swsetup module to sleep. Simply
+install other function pointers into all the tnl->Driver.Render.*
+hooks, and (optionally) cease calling _swsetup_InvalidateState().
+
+DRIVER INTERFACE
+
+The module offers a minimal driver interface:
+
+ void (*Start)( struct gl_context *ctx );
+ void (*Finish)( struct gl_context *ctx );
+
+These are called before and after the completion of all swrast drawing
+activity. As swrast doesn't call callbacks during triangle, line or
+point rasterization, these are necessary to provide locking hooks for
+some drivers. They may otherwise be left null.
+
+
diff --git a/mesalib/src/mesa/swrast_setup/ss_context.c b/mesalib/src/mesa/swrast_setup/ss_context.c index 0fcb7c77a..384cf425a 100644 --- a/mesalib/src/mesa/swrast_setup/ss_context.c +++ b/mesalib/src/mesa/swrast_setup/ss_context.c @@ -1,306 +1,306 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 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/imports.h" -#include "main/colormac.h" -#include "tnl/tnl.h" -#include "tnl/t_context.h" -#include "tnl/t_pipeline.h" -#include "tnl/t_vertex.h" -#include "swrast_setup.h" -#include "ss_context.h" -#include "ss_triangle.h" - - -/* Need to check lighting state and vertex program state to know - * if two-sided lighting is in effect. - */ -#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT|_NEW_PROGRAM) - - -#define VARYING_EMIT_STYLE EMIT_4F - - -GLboolean -_swsetup_CreateContext( GLcontext *ctx ) -{ - SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext)); - - if (!swsetup) - return GL_FALSE; - - ctx->swsetup_context = swsetup; - - swsetup->NewState = ~0; - _swsetup_trifuncs_init( ctx ); - - _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12, - sizeof(SWvertex) ); - - - return GL_TRUE; -} - -void -_swsetup_DestroyContext( GLcontext *ctx ) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - - if (swsetup) { - FREE(swsetup); - ctx->swsetup_context = 0; - } - - _tnl_free_vertices( ctx ); -} - -static void -_swsetup_RenderPrimitive( GLcontext *ctx, GLenum mode ) -{ - SWSETUP_CONTEXT(ctx)->render_prim = mode; - _swrast_render_primitive( ctx, mode ); -} - - -/** - * Helper macros for setup_vertex_format() - */ -#define SWZ ((SWvertex *)0) -#define SWOffset(MEMBER) (((char *)&(SWZ->MEMBER)) - ((char *)SWZ)) - -#define EMIT_ATTR( ATTR, STYLE, MEMBER ) \ -do { \ - map[e].attrib = (ATTR); \ - map[e].format = (STYLE); \ - map[e].offset = SWOffset(MEMBER); \ - e++; \ -} while (0) - - -/** - * Tell the tnl module how to build SWvertex objects for swrast. - * We'll build the map[] array with that info and pass it to - * _tnl_install_attrs(). - */ -static void -setup_vertex_format(GLcontext *ctx) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - GLboolean intColors = !ctx->FragmentProgram._Current - && !ctx->ATIFragmentShader._Enabled - && ctx->RenderMode == GL_RENDER - && CHAN_TYPE != GL_FLOAT; - - if (intColors != swsetup->intColors || - !RENDERINPUTS_EQUAL(tnl->render_inputs_bitset, - swsetup->last_index_bitset)) { - DECLARE_RENDERINPUTS(index_bitset); - struct tnl_attr_map map[_TNL_ATTRIB_MAX]; - unsigned int i, e = 0; - - swsetup->intColors = intColors; - - RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset ); - - EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[FRAG_ATTRIB_WPOS] ); - - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR0 )) { - if (swsetup->intColors) - EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color ); - else - EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[FRAG_ATTRIB_COL0]); - } - - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) { - EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[FRAG_ATTRIB_COL1]); - } - - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) { - const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F; - EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[FRAG_ATTRIB_FOGC]); - } - - if (RENDERINPUTS_TEST_RANGE(index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX)) - { - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX(i) )) { - EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F, - attrib[FRAG_ATTRIB_TEX0 + i] ); - } - } - } - - /* shader varying vars */ - if (RENDERINPUTS_TEST_RANGE( index_bitset, - _TNL_FIRST_GENERIC, _TNL_LAST_GENERIC )) { - for (i = 0; i < ctx->Const.MaxVarying; i++) { - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_GENERIC(i) )) { - EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE, - attrib[FRAG_ATTRIB_VAR0 + i] ); - } - } - } - - if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_POINTSIZE )) - EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize ); - - _tnl_install_attrs( ctx, map, e, - ctx->Viewport._WindowMap.m, - sizeof(SWvertex) ); - - RENDERINPUTS_COPY( swsetup->last_index_bitset, index_bitset ); - } -} - - -/** - * Prepare to render a vertex buffer. - * Called via tnl->Driver.Render.Start. - */ -static void -_swsetup_RenderStart( GLcontext *ctx ) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - TNLcontext *tnl = TNL_CONTEXT(ctx); - struct vertex_buffer *VB = &tnl->vb; - - if (swsetup->NewState & _SWSETUP_NEW_RENDERINDEX) { - _swsetup_choose_trifuncs(ctx); - } - - if (swsetup->NewState & _NEW_PROGRAM) { - RENDERINPUTS_ZERO( swsetup->last_index_bitset ); - } - - swsetup->NewState = 0; - - /* This will change if drawing unfilled tris */ - _swrast_SetFacing(ctx, 0); - - _swrast_render_start(ctx); - - /* Important */ - VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr; - - setup_vertex_format(ctx); -} - - -/* - * We patch this function into tnl->Driver.Render.Finish. - * It's called when we finish rendering a vertex buffer. - */ -static void -_swsetup_RenderFinish( GLcontext *ctx ) -{ - _swrast_render_finish( ctx ); -} - -void -_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state ) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - swsetup->NewState |= new_state; - _tnl_invalidate_vertex_state( ctx, new_state ); -} - - -void -_swsetup_Wakeup( GLcontext *ctx ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - - tnl->Driver.Render.Start = _swsetup_RenderStart; - tnl->Driver.Render.Finish = _swsetup_RenderFinish; - tnl->Driver.Render.PrimitiveNotify = _swsetup_RenderPrimitive; - tnl->Driver.Render.Interp = _tnl_interp; - tnl->Driver.Render.CopyPV = _tnl_copy_pv; - tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; /* new */ - tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine; /* new */ - /* points */ - /* line */ - /* triangle */ - /* quad */ - tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts; - tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts; - tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple; - tnl->Driver.Render.BuildVertices = _tnl_build_vertices; - tnl->Driver.Render.Multipass = 0; - - _tnl_invalidate_vertices( ctx, ~0 ); - _tnl_need_projected_coords( ctx, GL_TRUE ); - _swsetup_InvalidateState( ctx, ~0 ); - - swsetup->verts = (SWvertex *)tnl->clipspace.vertex_buf; - RENDERINPUTS_ZERO( swsetup->last_index_bitset ); -} - - -/** - * Populate a swrast SWvertex from an attrib-style vertex. - */ -void -_swsetup_Translate( GLcontext *ctx, const void *vertex, SWvertex *dest ) -{ - const GLfloat *m = ctx->Viewport._WindowMap.m; - GLfloat tmp[4]; - GLuint i; - - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POS, tmp ); - - dest->attrib[FRAG_ATTRIB_WPOS][0] = m[0] * tmp[0] + m[12]; - dest->attrib[FRAG_ATTRIB_WPOS][1] = m[5] * tmp[1] + m[13]; - dest->attrib[FRAG_ATTRIB_WPOS][2] = m[10] * tmp[2] + m[14]; - dest->attrib[FRAG_ATTRIB_WPOS][3] = tmp[3]; - - /** XXX try to limit these loops someday */ - for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++) - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_TEX0 + i, - dest->attrib[FRAG_ATTRIB_TEX0 + i] ); - - for (i = 0 ; i < ctx->Const.MaxVarying ; i++) - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_GENERIC0 + i, - dest->attrib[FRAG_ATTRIB_VAR0 + i] ); - - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR0, - dest->attrib[FRAG_ATTRIB_COL0] ); - UNCLAMPED_FLOAT_TO_RGBA_CHAN( dest->color, tmp ); - - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR1, - dest->attrib[FRAG_ATTRIB_COL1]); - - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_FOG, tmp ); - dest->attrib[FRAG_ATTRIB_FOGC][0] = tmp[0]; - - /* XXX See _tnl_get_attr about pointsize ... */ - _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POINTSIZE, tmp ); - dest->pointSize = tmp[0]; -} - +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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/imports.h"
+#include "main/colormac.h"
+#include "tnl/tnl.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+#include "tnl/t_vertex.h"
+#include "swrast_setup.h"
+#include "ss_context.h"
+#include "ss_triangle.h"
+
+
+/* Need to check lighting state and vertex program state to know
+ * if two-sided lighting is in effect.
+ */
+#define _SWSETUP_NEW_RENDERINDEX (_NEW_POLYGON|_NEW_LIGHT|_NEW_PROGRAM)
+
+
+#define VARYING_EMIT_STYLE EMIT_4F
+
+
+GLboolean
+_swsetup_CreateContext( struct gl_context *ctx )
+{
+ SScontext *swsetup = (SScontext *)CALLOC(sizeof(SScontext));
+
+ if (!swsetup)
+ return GL_FALSE;
+
+ ctx->swsetup_context = swsetup;
+
+ swsetup->NewState = ~0;
+ _swsetup_trifuncs_init( ctx );
+
+ _tnl_init_vertices( ctx, ctx->Const.MaxArrayLockSize + 12,
+ sizeof(SWvertex) );
+
+
+ return GL_TRUE;
+}
+
+void
+_swsetup_DestroyContext( struct gl_context *ctx )
+{
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+
+ if (swsetup) {
+ FREE(swsetup);
+ ctx->swsetup_context = 0;
+ }
+
+ _tnl_free_vertices( ctx );
+}
+
+static void
+_swsetup_RenderPrimitive( struct gl_context *ctx, GLenum mode )
+{
+ SWSETUP_CONTEXT(ctx)->render_prim = mode;
+ _swrast_render_primitive( ctx, mode );
+}
+
+
+/**
+ * Helper macros for setup_vertex_format()
+ */
+#define SWZ ((SWvertex *)0)
+#define SWOffset(MEMBER) (((char *)&(SWZ->MEMBER)) - ((char *)SWZ))
+
+#define EMIT_ATTR( ATTR, STYLE, MEMBER ) \
+do { \
+ map[e].attrib = (ATTR); \
+ map[e].format = (STYLE); \
+ map[e].offset = SWOffset(MEMBER); \
+ e++; \
+} while (0)
+
+
+/**
+ * Tell the tnl module how to build SWvertex objects for swrast.
+ * We'll build the map[] array with that info and pass it to
+ * _tnl_install_attrs().
+ */
+static void
+setup_vertex_format(struct gl_context *ctx)
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+ GLboolean intColors = !ctx->FragmentProgram._Current
+ && !ctx->ATIFragmentShader._Enabled
+ && ctx->RenderMode == GL_RENDER
+ && CHAN_TYPE != GL_FLOAT;
+
+ if (intColors != swsetup->intColors ||
+ !RENDERINPUTS_EQUAL(tnl->render_inputs_bitset,
+ swsetup->last_index_bitset)) {
+ DECLARE_RENDERINPUTS(index_bitset);
+ struct tnl_attr_map map[_TNL_ATTRIB_MAX];
+ unsigned int i, e = 0;
+
+ swsetup->intColors = intColors;
+
+ RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset );
+
+ EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[FRAG_ATTRIB_WPOS] );
+
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR0 )) {
+ if (swsetup->intColors)
+ EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4CHAN_4F_RGBA, color );
+ else
+ EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4F, attrib[FRAG_ATTRIB_COL0]);
+ }
+
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) {
+ EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[FRAG_ATTRIB_COL1]);
+ }
+
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
+ const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F;
+ EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[FRAG_ATTRIB_FOGC]);
+ }
+
+ if (RENDERINPUTS_TEST_RANGE(index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX))
+ {
+ for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX(i) )) {
+ EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F,
+ attrib[FRAG_ATTRIB_TEX0 + i] );
+ }
+ }
+ }
+
+ /* shader varying vars */
+ if (RENDERINPUTS_TEST_RANGE( index_bitset,
+ _TNL_FIRST_GENERIC, _TNL_LAST_GENERIC )) {
+ for (i = 0; i < ctx->Const.MaxVarying; i++) {
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_GENERIC(i) )) {
+ EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE,
+ attrib[FRAG_ATTRIB_VAR0 + i] );
+ }
+ }
+ }
+
+ if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_POINTSIZE ))
+ EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize );
+
+ _tnl_install_attrs( ctx, map, e,
+ ctx->Viewport._WindowMap.m,
+ sizeof(SWvertex) );
+
+ RENDERINPUTS_COPY( swsetup->last_index_bitset, index_bitset );
+ }
+}
+
+
+/**
+ * Prepare to render a vertex buffer.
+ * Called via tnl->Driver.Render.Start.
+ */
+static void
+_swsetup_RenderStart( struct gl_context *ctx )
+{
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+
+ if (swsetup->NewState & _SWSETUP_NEW_RENDERINDEX) {
+ _swsetup_choose_trifuncs(ctx);
+ }
+
+ if (swsetup->NewState & _NEW_PROGRAM) {
+ RENDERINPUTS_ZERO( swsetup->last_index_bitset );
+ }
+
+ swsetup->NewState = 0;
+
+ /* This will change if drawing unfilled tris */
+ _swrast_SetFacing(ctx, 0);
+
+ _swrast_render_start(ctx);
+
+ /* Important */
+ VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
+
+ setup_vertex_format(ctx);
+}
+
+
+/*
+ * We patch this function into tnl->Driver.Render.Finish.
+ * It's called when we finish rendering a vertex buffer.
+ */
+static void
+_swsetup_RenderFinish( struct gl_context *ctx )
+{
+ _swrast_render_finish( ctx );
+}
+
+void
+_swsetup_InvalidateState( struct gl_context *ctx, GLuint new_state )
+{
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+ swsetup->NewState |= new_state;
+ _tnl_invalidate_vertex_state( ctx, new_state );
+}
+
+
+void
+_swsetup_Wakeup( struct gl_context *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+
+ tnl->Driver.Render.Start = _swsetup_RenderStart;
+ tnl->Driver.Render.Finish = _swsetup_RenderFinish;
+ tnl->Driver.Render.PrimitiveNotify = _swsetup_RenderPrimitive;
+ tnl->Driver.Render.Interp = _tnl_interp;
+ tnl->Driver.Render.CopyPV = _tnl_copy_pv;
+ tnl->Driver.Render.ClippedPolygon = _tnl_RenderClippedPolygon; /* new */
+ tnl->Driver.Render.ClippedLine = _tnl_RenderClippedLine; /* new */
+ /* points */
+ /* line */
+ /* triangle */
+ /* quad */
+ tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+ tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+ tnl->Driver.Render.ResetLineStipple = _swrast_ResetLineStipple;
+ tnl->Driver.Render.BuildVertices = _tnl_build_vertices;
+ tnl->Driver.Render.Multipass = 0;
+
+ _tnl_invalidate_vertices( ctx, ~0 );
+ _tnl_need_projected_coords( ctx, GL_TRUE );
+ _swsetup_InvalidateState( ctx, ~0 );
+
+ swsetup->verts = (SWvertex *)tnl->clipspace.vertex_buf;
+ RENDERINPUTS_ZERO( swsetup->last_index_bitset );
+}
+
+
+/**
+ * Populate a swrast SWvertex from an attrib-style vertex.
+ */
+void
+_swsetup_Translate( struct gl_context *ctx, const void *vertex, SWvertex *dest )
+{
+ const GLfloat *m = ctx->Viewport._WindowMap.m;
+ GLfloat tmp[4];
+ GLuint i;
+
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POS, tmp );
+
+ dest->attrib[FRAG_ATTRIB_WPOS][0] = m[0] * tmp[0] + m[12];
+ dest->attrib[FRAG_ATTRIB_WPOS][1] = m[5] * tmp[1] + m[13];
+ dest->attrib[FRAG_ATTRIB_WPOS][2] = m[10] * tmp[2] + m[14];
+ dest->attrib[FRAG_ATTRIB_WPOS][3] = tmp[3];
+
+ /** XXX try to limit these loops someday */
+ for (i = 0 ; i < ctx->Const.MaxTextureCoordUnits ; i++)
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_TEX0 + i,
+ dest->attrib[FRAG_ATTRIB_TEX0 + i] );
+
+ for (i = 0 ; i < ctx->Const.MaxVarying ; i++)
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_GENERIC0 + i,
+ dest->attrib[FRAG_ATTRIB_VAR0 + i] );
+
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR0,
+ dest->attrib[FRAG_ATTRIB_COL0] );
+ UNCLAMPED_FLOAT_TO_RGBA_CHAN( dest->color, tmp );
+
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_COLOR1,
+ dest->attrib[FRAG_ATTRIB_COL1]);
+
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_FOG, tmp );
+ dest->attrib[FRAG_ATTRIB_FOGC][0] = tmp[0];
+
+ /* XXX See _tnl_get_attr about pointsize ... */
+ _tnl_get_attr( ctx, vertex, _TNL_ATTRIB_POINTSIZE, tmp );
+ dest->pointSize = tmp[0];
+}
+
diff --git a/mesalib/src/mesa/swrast_setup/ss_triangle.c b/mesalib/src/mesa/swrast_setup/ss_triangle.c index f22bc52f0..4fc9a0756 100644 --- a/mesalib/src/mesa/swrast_setup/ss_triangle.c +++ b/mesalib/src/mesa/swrast_setup/ss_triangle.c @@ -1,265 +1,265 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 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/mtypes.h" - -#include "tnl/t_context.h" - -#include "ss_triangle.h" -#include "ss_context.h" - -#define SS_OFFSET_BIT 0x1 -#define SS_TWOSIDE_BIT 0x2 -#define SS_UNFILLED_BIT 0x4 -#define SS_MAX_TRIFUNC 0x8 - -static tnl_triangle_func tri_tab[SS_MAX_TRIFUNC]; -static tnl_quad_func quad_tab[SS_MAX_TRIFUNC]; - - -/* - * Render a triangle respecting edge flags. - */ -typedef void (* swsetup_edge_render_prim_tri)(GLcontext *ctx, - const GLubyte *ef, - GLuint e0, - GLuint e1, - GLuint e2, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2); - -/* - * Render a triangle using lines and respecting edge flags. - */ -static void -_swsetup_edge_render_line_tri(GLcontext *ctx, - const GLubyte *ef, - GLuint e0, - GLuint e1, - GLuint e2, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - - if (swsetup->render_prim == GL_POLYGON) { - if (ef[e2]) _swrast_Line( ctx, v2, v0 ); - if (ef[e0]) _swrast_Line( ctx, v0, v1 ); - if (ef[e1]) _swrast_Line( ctx, v1, v2 ); - } else { - if (ef[e0]) _swrast_Line( ctx, v0, v1 ); - if (ef[e1]) _swrast_Line( ctx, v1, v2 ); - if (ef[e2]) _swrast_Line( ctx, v2, v0 ); - } -} - -/* - * Render a triangle using points and respecting edge flags. - */ -static void -_swsetup_edge_render_point_tri(GLcontext *ctx, - const GLubyte *ef, - GLuint e0, - GLuint e1, - GLuint e2, - const SWvertex *v0, - const SWvertex *v1, - const SWvertex *v2) -{ - if (ef[e0]) _swrast_Point( ctx, v0 ); - if (ef[e1]) _swrast_Point( ctx, v1 ); - if (ef[e2]) _swrast_Point( ctx, v2 ); - - _swrast_flush(ctx); -} - -/* - * Render a triangle respecting cull and shade model. - */ -static void _swsetup_render_tri(GLcontext *ctx, - GLuint e0, - GLuint e1, - GLuint e2, - GLuint facing, - swsetup_edge_render_prim_tri render) -{ - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - GLubyte *ef = VB->EdgeFlag; - SWvertex *verts = swsetup->verts; - SWvertex *v0 = &verts[e0]; - SWvertex *v1 = &verts[e1]; - SWvertex *v2 = &verts[e2]; - - /* cull testing */ - if (ctx->Polygon.CullFlag) { - if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT) - return; - if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK) - return; - } - - _swrast_SetFacing(ctx, facing); - - if (ctx->Light.ShadeModel == GL_FLAT) { - GLchan c[2][4]; - GLfloat s[2][4]; - - /* save colors/indexes for v0, v1 vertices */ - COPY_CHAN4(c[0], v0->color); - COPY_CHAN4(c[1], v1->color); - COPY_4V(s[0], v0->attrib[FRAG_ATTRIB_COL1]); - COPY_4V(s[1], v1->attrib[FRAG_ATTRIB_COL1]); - - /* copy v2 color/indexes to v0, v1 indexes */ - COPY_CHAN4(v0->color, v2->color); - COPY_CHAN4(v1->color, v2->color); - COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]); - COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]); - - render(ctx, ef, e0, e1, e2, v0, v1, v2); - - COPY_CHAN4(v0->color, c[0]); - COPY_CHAN4(v1->color, c[1]); - COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], s[0]); - COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], s[1]); - } - else { - render(ctx, ef, e0, e1, e2, v0, v1, v2); - } -} - -#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b) -#define SS_SPEC(a,b) COPY_4V(a,b) -#define SS_IND(a,b) (a = b) - -#define IND (0) -#define TAG(x) x##_rgba -#include "ss_tritmp.h" - -#define IND (SS_OFFSET_BIT) -#define TAG(x) x##_offset_rgba -#include "ss_tritmp.h" - -#define IND (SS_TWOSIDE_BIT) -#define TAG(x) x##_twoside_rgba -#include "ss_tritmp.h" - -#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT) -#define TAG(x) x##_offset_twoside_rgba -#include "ss_tritmp.h" - -#define IND (SS_UNFILLED_BIT) -#define TAG(x) x##_unfilled_rgba -#include "ss_tritmp.h" - -#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT) -#define TAG(x) x##_offset_unfilled_rgba -#include "ss_tritmp.h" - -#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT) -#define TAG(x) x##_twoside_unfilled_rgba -#include "ss_tritmp.h" - -#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT) -#define TAG(x) x##_offset_twoside_unfilled_rgba -#include "ss_tritmp.h" - - -void _swsetup_trifuncs_init( GLcontext *ctx ) -{ - (void) ctx; - - init_rgba(); - init_offset_rgba(); - init_twoside_rgba(); - init_offset_twoside_rgba(); - init_unfilled_rgba(); - init_offset_unfilled_rgba(); - init_twoside_unfilled_rgba(); - init_offset_twoside_unfilled_rgba(); -} - - -static void swsetup_points( GLcontext *ctx, GLuint first, GLuint last ) -{ - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; - GLuint i; - - if (VB->Elts) { - for (i = first; i < last; i++) - if (VB->ClipMask[VB->Elts[i]] == 0) - _swrast_Point( ctx, &verts[VB->Elts[i]] ); - } - else { - for (i = first; i < last; i++) - if (VB->ClipMask[i] == 0) - _swrast_Point( ctx, &verts[i] ); - } -} - -static void swsetup_line( GLcontext *ctx, GLuint v0, GLuint v1 ) -{ - SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; - _swrast_Line( ctx, &verts[v0], &verts[v1] ); -} - - - -void _swsetup_choose_trifuncs( GLcontext *ctx ) -{ - TNLcontext *tnl = TNL_CONTEXT(ctx); - GLuint ind = 0; - - if (ctx->Polygon.OffsetPoint || - ctx->Polygon.OffsetLine || - ctx->Polygon.OffsetFill) - ind |= SS_OFFSET_BIT; - - if ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) || - (ctx->VertexProgram._Current && ctx->VertexProgram.TwoSideEnabled)) - ind |= SS_TWOSIDE_BIT; - - /* We piggyback the two-sided stencil front/back determination on the - * unfilled triangle path. - */ - if (ctx->Polygon.FrontMode != GL_FILL || - ctx->Polygon.BackMode != GL_FILL || - (ctx->Stencil.Enabled && ctx->Stencil._TestTwoSide)) - ind |= SS_UNFILLED_BIT; - - tnl->Driver.Render.Triangle = tri_tab[ind]; - tnl->Driver.Render.Quad = quad_tab[ind]; - tnl->Driver.Render.Line = swsetup_line; - tnl->Driver.Render.Points = swsetup_points; -} +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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/mtypes.h"
+
+#include "tnl/t_context.h"
+
+#include "ss_triangle.h"
+#include "ss_context.h"
+
+#define SS_OFFSET_BIT 0x1
+#define SS_TWOSIDE_BIT 0x2
+#define SS_UNFILLED_BIT 0x4
+#define SS_MAX_TRIFUNC 0x8
+
+static tnl_triangle_func tri_tab[SS_MAX_TRIFUNC];
+static tnl_quad_func quad_tab[SS_MAX_TRIFUNC];
+
+
+/*
+ * Render a triangle respecting edge flags.
+ */
+typedef void (* swsetup_edge_render_prim_tri)(struct gl_context *ctx,
+ const GLubyte *ef,
+ GLuint e0,
+ GLuint e1,
+ GLuint e2,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2);
+
+/*
+ * Render a triangle using lines and respecting edge flags.
+ */
+static void
+_swsetup_edge_render_line_tri(struct gl_context *ctx,
+ const GLubyte *ef,
+ GLuint e0,
+ GLuint e1,
+ GLuint e2,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+
+ if (swsetup->render_prim == GL_POLYGON) {
+ if (ef[e2]) _swrast_Line( ctx, v2, v0 );
+ if (ef[e0]) _swrast_Line( ctx, v0, v1 );
+ if (ef[e1]) _swrast_Line( ctx, v1, v2 );
+ } else {
+ if (ef[e0]) _swrast_Line( ctx, v0, v1 );
+ if (ef[e1]) _swrast_Line( ctx, v1, v2 );
+ if (ef[e2]) _swrast_Line( ctx, v2, v0 );
+ }
+}
+
+/*
+ * Render a triangle using points and respecting edge flags.
+ */
+static void
+_swsetup_edge_render_point_tri(struct gl_context *ctx,
+ const GLubyte *ef,
+ GLuint e0,
+ GLuint e1,
+ GLuint e2,
+ const SWvertex *v0,
+ const SWvertex *v1,
+ const SWvertex *v2)
+{
+ if (ef[e0]) _swrast_Point( ctx, v0 );
+ if (ef[e1]) _swrast_Point( ctx, v1 );
+ if (ef[e2]) _swrast_Point( ctx, v2 );
+
+ _swrast_flush(ctx);
+}
+
+/*
+ * Render a triangle respecting cull and shade model.
+ */
+static void _swsetup_render_tri(struct gl_context *ctx,
+ GLuint e0,
+ GLuint e1,
+ GLuint e2,
+ GLuint facing,
+ swsetup_edge_render_prim_tri render)
+{
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ GLubyte *ef = VB->EdgeFlag;
+ SWvertex *verts = swsetup->verts;
+ SWvertex *v0 = &verts[e0];
+ SWvertex *v1 = &verts[e1];
+ SWvertex *v2 = &verts[e2];
+
+ /* cull testing */
+ if (ctx->Polygon.CullFlag) {
+ if (facing == 1 && ctx->Polygon.CullFaceMode != GL_FRONT)
+ return;
+ if (facing == 0 && ctx->Polygon.CullFaceMode != GL_BACK)
+ return;
+ }
+
+ _swrast_SetFacing(ctx, facing);
+
+ if (ctx->Light.ShadeModel == GL_FLAT) {
+ GLchan c[2][4];
+ GLfloat s[2][4];
+
+ /* save colors/indexes for v0, v1 vertices */
+ COPY_CHAN4(c[0], v0->color);
+ COPY_CHAN4(c[1], v1->color);
+ COPY_4V(s[0], v0->attrib[FRAG_ATTRIB_COL1]);
+ COPY_4V(s[1], v1->attrib[FRAG_ATTRIB_COL1]);
+
+ /* copy v2 color/indexes to v0, v1 indexes */
+ COPY_CHAN4(v0->color, v2->color);
+ COPY_CHAN4(v1->color, v2->color);
+ COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]);
+ COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], v2->attrib[FRAG_ATTRIB_COL1]);
+
+ render(ctx, ef, e0, e1, e2, v0, v1, v2);
+
+ COPY_CHAN4(v0->color, c[0]);
+ COPY_CHAN4(v1->color, c[1]);
+ COPY_4V(v0->attrib[FRAG_ATTRIB_COL1], s[0]);
+ COPY_4V(v1->attrib[FRAG_ATTRIB_COL1], s[1]);
+ }
+ else {
+ render(ctx, ef, e0, e1, e2, v0, v1, v2);
+ }
+}
+
+#define SS_COLOR(a,b) UNCLAMPED_FLOAT_TO_RGBA_CHAN(a,b)
+#define SS_SPEC(a,b) COPY_4V(a,b)
+#define SS_IND(a,b) (a = b)
+
+#define IND (0)
+#define TAG(x) x##_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT)
+#define TAG(x) x##_offset_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT)
+#define TAG(x) x##_twoside_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT)
+#define TAG(x) x##_offset_twoside_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_UNFILLED_BIT)
+#define TAG(x) x##_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_TWOSIDE_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled_rgba
+#include "ss_tritmp.h"
+
+#define IND (SS_OFFSET_BIT|SS_TWOSIDE_BIT|SS_UNFILLED_BIT)
+#define TAG(x) x##_offset_twoside_unfilled_rgba
+#include "ss_tritmp.h"
+
+
+void _swsetup_trifuncs_init( struct gl_context *ctx )
+{
+ (void) ctx;
+
+ init_rgba();
+ init_offset_rgba();
+ init_twoside_rgba();
+ init_offset_twoside_rgba();
+ init_unfilled_rgba();
+ init_offset_unfilled_rgba();
+ init_twoside_unfilled_rgba();
+ init_offset_twoside_unfilled_rgba();
+}
+
+
+static void swsetup_points( struct gl_context *ctx, GLuint first, GLuint last )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
+ GLuint i;
+
+ if (VB->Elts) {
+ for (i = first; i < last; i++)
+ if (VB->ClipMask[VB->Elts[i]] == 0)
+ _swrast_Point( ctx, &verts[VB->Elts[i]] );
+ }
+ else {
+ for (i = first; i < last; i++)
+ if (VB->ClipMask[i] == 0)
+ _swrast_Point( ctx, &verts[i] );
+ }
+}
+
+static void swsetup_line( struct gl_context *ctx, GLuint v0, GLuint v1 )
+{
+ SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
+ _swrast_Line( ctx, &verts[v0], &verts[v1] );
+}
+
+
+
+void _swsetup_choose_trifuncs( struct gl_context *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ GLuint ind = 0;
+
+ if (ctx->Polygon.OffsetPoint ||
+ ctx->Polygon.OffsetLine ||
+ ctx->Polygon.OffsetFill)
+ ind |= SS_OFFSET_BIT;
+
+ if ((ctx->Light.Enabled && ctx->Light.Model.TwoSide) ||
+ (ctx->VertexProgram._Current && ctx->VertexProgram.TwoSideEnabled))
+ ind |= SS_TWOSIDE_BIT;
+
+ /* We piggyback the two-sided stencil front/back determination on the
+ * unfilled triangle path.
+ */
+ if (ctx->Polygon.FrontMode != GL_FILL ||
+ ctx->Polygon.BackMode != GL_FILL ||
+ (ctx->Stencil.Enabled && ctx->Stencil._TestTwoSide))
+ ind |= SS_UNFILLED_BIT;
+
+ tnl->Driver.Render.Triangle = tri_tab[ind];
+ tnl->Driver.Render.Quad = quad_tab[ind];
+ tnl->Driver.Render.Line = swsetup_line;
+ tnl->Driver.Render.Points = swsetup_points;
+}
diff --git a/mesalib/src/mesa/swrast_setup/ss_triangle.h b/mesalib/src/mesa/swrast_setup/ss_triangle.h index ac553cbd0..e21a9749a 100644 --- a/mesalib/src/mesa/swrast_setup/ss_triangle.h +++ b/mesalib/src/mesa/swrast_setup/ss_triangle.h @@ -1,38 +1,38 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 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> - */ - -#ifndef SS_TRIANGLE_H -#define SS_TRIANGLE_H - -#include "main/mtypes.h" - - -void _swsetup_trifuncs_init( GLcontext *ctx ); -void _swsetup_choose_trifuncs( GLcontext *ctx ); - -#endif +
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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>
+ */
+
+#ifndef SS_TRIANGLE_H
+#define SS_TRIANGLE_H
+
+struct gl_context;
+
+
+void _swsetup_trifuncs_init( struct gl_context *ctx );
+void _swsetup_choose_trifuncs( struct gl_context *ctx );
+
+#endif
diff --git a/mesalib/src/mesa/swrast_setup/ss_tritmp.h b/mesalib/src/mesa/swrast_setup/ss_tritmp.h index 8e9fa1bd5..9b2b7cf6a 100644 --- a/mesalib/src/mesa/swrast_setup/ss_tritmp.h +++ b/mesalib/src/mesa/swrast_setup/ss_tritmp.h @@ -1,248 +1,248 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 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> - */ - - -/** - * This is where we handle assigning vertex colors based on front/back - * facing, compute polygon offset and handle glPolygonMode(). - */ -static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 ) -{ - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - SScontext *swsetup = SWSETUP_CONTEXT(ctx); - SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts; - SWvertex *v[3]; - GLfloat z[3]; - GLfloat offset, oz0, oz1, oz2; - GLenum mode = GL_FILL; - GLuint facing = 0; - GLchan saved_color[3][4] = { { 0 } }; - GLfloat saved_col0[3][4] = { { 0 } }; - GLfloat saved_spec[3][4] = { { 0 } }; - - v[0] = &verts[e0]; - v[1] = &verts[e1]; - v[2] = &verts[e2]; - - if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT)) - { - GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; - GLfloat ey = v[0]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; - GLfloat fx = v[1]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0]; - GLfloat fy = v[1]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1]; - GLfloat cc = ex*fy - ey*fx; - - if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT)) - { - facing = (cc < 0.0) ^ ctx->Polygon._FrontBit; - - if (IND & SS_UNFILLED_BIT) - mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode; - - if (facing == 1) { - if (IND & SS_TWOSIDE_BIT) { - if (VB->BackfaceColorPtr) { - GLfloat (*vbcolor)[4] = VB->BackfaceColorPtr->data; - - if (swsetup->intColors) { - COPY_CHAN4(saved_color[0], v[0]->color); - COPY_CHAN4(saved_color[1], v[1]->color); - COPY_CHAN4(saved_color[2], v[2]->color); - } - else { - COPY_4V(saved_col0[0], v[0]->attrib[FRAG_ATTRIB_COL0]); - COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL0]); - COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL0]); - } - - if (VB->BackfaceColorPtr->stride) { - if (swsetup->intColors) { - SS_COLOR(v[0]->color, vbcolor[e0]); - SS_COLOR(v[1]->color, vbcolor[e1]); - SS_COLOR(v[2]->color, vbcolor[e2]); - } - else { - COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[e0]); - COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[e1]); - COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[e2]); - } - } - else { - /* flat shade */ - if (swsetup->intColors) { - SS_COLOR(v[0]->color, vbcolor[0]); - SS_COLOR(v[1]->color, vbcolor[0]); - SS_COLOR(v[2]->color, vbcolor[0]); - } - else { - COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); - COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); - COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]); - } - } - } - - if (VB->BackfaceSecondaryColorPtr) { - GLfloat (*vbspec)[4] = VB->BackfaceSecondaryColorPtr->data; - - COPY_4V(saved_spec[0], v[0]->attrib[FRAG_ATTRIB_COL1]); - COPY_4V(saved_spec[1], v[1]->attrib[FRAG_ATTRIB_COL1]); - COPY_4V(saved_spec[2], v[2]->attrib[FRAG_ATTRIB_COL1]); - - if (VB->BackfaceSecondaryColorPtr->stride) { - SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[e0]); - SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[e1]); - SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[e2]); - } - else { - SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); - SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); - SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[0]); - } - } - } - } - } - - if (IND & SS_OFFSET_BIT) { - const GLfloat max = ctx->DrawBuffer->_DepthMaxF; - /* save original Z values (restored later) */ - z[0] = v[0]->attrib[FRAG_ATTRIB_WPOS][2]; - z[1] = v[1]->attrib[FRAG_ATTRIB_WPOS][2]; - z[2] = v[2]->attrib[FRAG_ATTRIB_WPOS][2]; - /* Note that Z values are already scaled to [0,65535] (for example) - * so no MRD value is used here. - */ - offset = ctx->Polygon.OffsetUnits; - if (cc * cc > 1e-16) { - const GLfloat ez = z[0] - z[2]; - const GLfloat fz = z[1] - z[2]; - const GLfloat oneOverArea = 1.0F / cc; - const GLfloat dzdx = FABSF((ey * fz - ez * fy) * oneOverArea); - const GLfloat dzdy = FABSF((ez * fx - ex * fz) * oneOverArea); - offset += MAX2(dzdx, dzdy) * ctx->Polygon.OffsetFactor; - } - /* new Z values */ - oz0 = CLAMP(v[0]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); - oz1 = CLAMP(v[1]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); - oz2 = CLAMP(v[2]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max); - } - } - - if (mode == GL_POINT) { - if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) { - v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; - v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; - v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; - } - _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_point_tri); - } else if (mode == GL_LINE) { - if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) { - v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; - v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; - v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; - } - _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_line_tri); - } else { - if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) { - v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0; - v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1; - v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2; - } - _swrast_Triangle( ctx, v[0], v[1], v[2] ); - } - - /* - * Restore original vertex colors, etc. - */ - if (IND & SS_OFFSET_BIT) { - v[0]->attrib[FRAG_ATTRIB_WPOS][2] = z[0]; - v[1]->attrib[FRAG_ATTRIB_WPOS][2] = z[1]; - v[2]->attrib[FRAG_ATTRIB_WPOS][2] = z[2]; - } - - if (IND & SS_TWOSIDE_BIT) { - if (facing == 1) { - if (VB->BackfaceColorPtr) { - if (swsetup->intColors) { - COPY_CHAN4(v[0]->color, saved_color[0]); - COPY_CHAN4(v[1]->color, saved_color[1]); - COPY_CHAN4(v[2]->color, saved_color[2]); - } - else { - COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], saved_col0[0]); - COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], saved_col0[1]); - COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], saved_col0[2]); - } - } - - if (VB->BackfaceSecondaryColorPtr) { - COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL1], saved_spec[0]); - COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL1], saved_spec[1]); - COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL1], saved_spec[2]); - } - } - } -} - - - -/* Need to fixup edgeflags when decomposing to triangles: - */ -static void TAG(quadfunc)( GLcontext *ctx, GLuint v0, - GLuint v1, GLuint v2, GLuint v3 ) -{ - if (IND & SS_UNFILLED_BIT) { - struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; - if (VB->EdgeFlag) { /* XXX this test shouldn't be needed (bug 12614) */ - GLubyte ef1 = VB->EdgeFlag[v1]; - GLubyte ef3 = VB->EdgeFlag[v3]; - VB->EdgeFlag[v1] = 0; - TAG(triangle)( ctx, v0, v1, v3 ); - VB->EdgeFlag[v1] = ef1; - VB->EdgeFlag[v3] = 0; - TAG(triangle)( ctx, v1, v2, v3 ); - VB->EdgeFlag[v3] = ef3; - } - } else { - TAG(triangle)( ctx, v0, v1, v3 ); - TAG(triangle)( ctx, v1, v2, v3 ); - } -} - - - - -static void TAG(init)( void ) -{ - tri_tab[IND] = TAG(triangle); - quad_tab[IND] = TAG(quadfunc); -} - - -#undef IND -#undef TAG +/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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>
+ */
+
+
+/**
+ * This is where we handle assigning vertex colors based on front/back
+ * facing, compute polygon offset and handle glPolygonMode().
+ */
+static void TAG(triangle)(struct gl_context *ctx, GLuint e0, GLuint e1, GLuint e2 )
+{
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ SScontext *swsetup = SWSETUP_CONTEXT(ctx);
+ SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
+ SWvertex *v[3];
+ GLfloat z[3];
+ GLfloat offset, oz0, oz1, oz2;
+ GLenum mode = GL_FILL;
+ GLuint facing = 0;
+ GLchan saved_color[3][4] = { { 0 } };
+ GLfloat saved_col0[3][4] = { { 0 } };
+ GLfloat saved_spec[3][4] = { { 0 } };
+
+ v[0] = &verts[e0];
+ v[1] = &verts[e1];
+ v[2] = &verts[e2];
+
+ if (IND & (SS_TWOSIDE_BIT | SS_OFFSET_BIT | SS_UNFILLED_BIT))
+ {
+ GLfloat ex = v[0]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0];
+ GLfloat ey = v[0]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1];
+ GLfloat fx = v[1]->attrib[FRAG_ATTRIB_WPOS][0] - v[2]->attrib[FRAG_ATTRIB_WPOS][0];
+ GLfloat fy = v[1]->attrib[FRAG_ATTRIB_WPOS][1] - v[2]->attrib[FRAG_ATTRIB_WPOS][1];
+ GLfloat cc = ex*fy - ey*fx;
+
+ if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT))
+ {
+ facing = (cc < 0.0) ^ ctx->Polygon._FrontBit;
+
+ if (IND & SS_UNFILLED_BIT)
+ mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode;
+
+ if (facing == 1) {
+ if (IND & SS_TWOSIDE_BIT) {
+ if (VB->BackfaceColorPtr) {
+ GLfloat (*vbcolor)[4] = VB->BackfaceColorPtr->data;
+
+ if (swsetup->intColors) {
+ COPY_CHAN4(saved_color[0], v[0]->color);
+ COPY_CHAN4(saved_color[1], v[1]->color);
+ COPY_CHAN4(saved_color[2], v[2]->color);
+ }
+ else {
+ COPY_4V(saved_col0[0], v[0]->attrib[FRAG_ATTRIB_COL0]);
+ COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL0]);
+ COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL0]);
+ }
+
+ if (VB->BackfaceColorPtr->stride) {
+ if (swsetup->intColors) {
+ SS_COLOR(v[0]->color, vbcolor[e0]);
+ SS_COLOR(v[1]->color, vbcolor[e1]);
+ SS_COLOR(v[2]->color, vbcolor[e2]);
+ }
+ else {
+ COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[e0]);
+ COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[e1]);
+ COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[e2]);
+ }
+ }
+ else {
+ /* flat shade */
+ if (swsetup->intColors) {
+ SS_COLOR(v[0]->color, vbcolor[0]);
+ SS_COLOR(v[1]->color, vbcolor[0]);
+ SS_COLOR(v[2]->color, vbcolor[0]);
+ }
+ else {
+ COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
+ COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
+ COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], vbcolor[0]);
+ }
+ }
+ }
+
+ if (VB->BackfaceSecondaryColorPtr) {
+ GLfloat (*vbspec)[4] = VB->BackfaceSecondaryColorPtr->data;
+
+ COPY_4V(saved_spec[0], v[0]->attrib[FRAG_ATTRIB_COL1]);
+ COPY_4V(saved_spec[1], v[1]->attrib[FRAG_ATTRIB_COL1]);
+ COPY_4V(saved_spec[2], v[2]->attrib[FRAG_ATTRIB_COL1]);
+
+ if (VB->BackfaceSecondaryColorPtr->stride) {
+ SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[e0]);
+ SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[e1]);
+ SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[e2]);
+ }
+ else {
+ SS_SPEC(v[0]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
+ SS_SPEC(v[1]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
+ SS_SPEC(v[2]->attrib[FRAG_ATTRIB_COL1], vbspec[0]);
+ }
+ }
+ }
+ }
+ }
+
+ if (IND & SS_OFFSET_BIT) {
+ const GLfloat max = ctx->DrawBuffer->_DepthMaxF;
+ /* save original Z values (restored later) */
+ z[0] = v[0]->attrib[FRAG_ATTRIB_WPOS][2];
+ z[1] = v[1]->attrib[FRAG_ATTRIB_WPOS][2];
+ z[2] = v[2]->attrib[FRAG_ATTRIB_WPOS][2];
+ /* Note that Z values are already scaled to [0,65535] (for example)
+ * so no MRD value is used here.
+ */
+ offset = ctx->Polygon.OffsetUnits;
+ if (cc * cc > 1e-16) {
+ const GLfloat ez = z[0] - z[2];
+ const GLfloat fz = z[1] - z[2];
+ const GLfloat oneOverArea = 1.0F / cc;
+ const GLfloat dzdx = FABSF((ey * fz - ez * fy) * oneOverArea);
+ const GLfloat dzdy = FABSF((ez * fx - ex * fz) * oneOverArea);
+ offset += MAX2(dzdx, dzdy) * ctx->Polygon.OffsetFactor;
+ }
+ /* new Z values */
+ oz0 = CLAMP(v[0]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
+ oz1 = CLAMP(v[1]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
+ oz2 = CLAMP(v[2]->attrib[FRAG_ATTRIB_WPOS][2] + offset, 0.0F, max);
+ }
+ }
+
+ if (mode == GL_POINT) {
+ if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) {
+ v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
+ v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
+ v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
+ }
+ _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_point_tri);
+ } else if (mode == GL_LINE) {
+ if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) {
+ v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
+ v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
+ v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
+ }
+ _swsetup_render_tri(ctx, e0, e1, e2, facing, _swsetup_edge_render_line_tri);
+ } else {
+ if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) {
+ v[0]->attrib[FRAG_ATTRIB_WPOS][2] = oz0;
+ v[1]->attrib[FRAG_ATTRIB_WPOS][2] = oz1;
+ v[2]->attrib[FRAG_ATTRIB_WPOS][2] = oz2;
+ }
+ _swrast_Triangle( ctx, v[0], v[1], v[2] );
+ }
+
+ /*
+ * Restore original vertex colors, etc.
+ */
+ if (IND & SS_OFFSET_BIT) {
+ v[0]->attrib[FRAG_ATTRIB_WPOS][2] = z[0];
+ v[1]->attrib[FRAG_ATTRIB_WPOS][2] = z[1];
+ v[2]->attrib[FRAG_ATTRIB_WPOS][2] = z[2];
+ }
+
+ if (IND & SS_TWOSIDE_BIT) {
+ if (facing == 1) {
+ if (VB->BackfaceColorPtr) {
+ if (swsetup->intColors) {
+ COPY_CHAN4(v[0]->color, saved_color[0]);
+ COPY_CHAN4(v[1]->color, saved_color[1]);
+ COPY_CHAN4(v[2]->color, saved_color[2]);
+ }
+ else {
+ COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL0], saved_col0[0]);
+ COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL0], saved_col0[1]);
+ COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL0], saved_col0[2]);
+ }
+ }
+
+ if (VB->BackfaceSecondaryColorPtr) {
+ COPY_4V(v[0]->attrib[FRAG_ATTRIB_COL1], saved_spec[0]);
+ COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL1], saved_spec[1]);
+ COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL1], saved_spec[2]);
+ }
+ }
+ }
+}
+
+
+
+/* Need to fixup edgeflags when decomposing to triangles:
+ */
+static void TAG(quadfunc)( struct gl_context *ctx, GLuint v0,
+ GLuint v1, GLuint v2, GLuint v3 )
+{
+ if (IND & SS_UNFILLED_BIT) {
+ struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ if (VB->EdgeFlag) { /* XXX this test shouldn't be needed (bug 12614) */
+ GLubyte ef1 = VB->EdgeFlag[v1];
+ GLubyte ef3 = VB->EdgeFlag[v3];
+ VB->EdgeFlag[v1] = 0;
+ TAG(triangle)( ctx, v0, v1, v3 );
+ VB->EdgeFlag[v1] = ef1;
+ VB->EdgeFlag[v3] = 0;
+ TAG(triangle)( ctx, v1, v2, v3 );
+ VB->EdgeFlag[v3] = ef3;
+ }
+ } else {
+ TAG(triangle)( ctx, v0, v1, v3 );
+ TAG(triangle)( ctx, v1, v2, v3 );
+ }
+}
+
+
+
+
+static void TAG(init)( void )
+{
+ tri_tab[IND] = TAG(triangle);
+ quad_tab[IND] = TAG(quadfunc);
+}
+
+
+#undef IND
+#undef TAG
diff --git a/mesalib/src/mesa/swrast_setup/ss_vb.h b/mesalib/src/mesa/swrast_setup/ss_vb.h index 944a3b78d..35d5da6f7 100644 --- a/mesalib/src/mesa/swrast_setup/ss_vb.h +++ b/mesalib/src/mesa/swrast_setup/ss_vb.h @@ -1,37 +1,37 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 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> - */ - -#ifndef SS_VB_H -#define SS_VB_H - -#include "main/mtypes.h" - -void _swsetup_vb_init( GLcontext *ctx ); -void _swsetup_choose_rastersetup_func( GLcontext *ctx ); - -#endif +
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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>
+ */
+
+#ifndef SS_VB_H
+#define SS_VB_H
+
+struct gl_context;
+
+void _swsetup_vb_init( struct gl_context *ctx );
+void _swsetup_choose_rastersetup_func( struct gl_context *ctx );
+
+#endif
diff --git a/mesalib/src/mesa/swrast_setup/swrast_setup.h b/mesalib/src/mesa/swrast_setup/swrast_setup.h index 5dcbe2675..6d82ef58f 100644 --- a/mesalib/src/mesa/swrast_setup/swrast_setup.h +++ b/mesalib/src/mesa/swrast_setup/swrast_setup.h @@ -1,61 +1,61 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.5 - * - * Copyright (C) 1999-2001 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> - */ - -/* Public interface to the swrast_setup module. This module provides - * an implementation of the driver interface to t_vb_render.c, and uses - * the software rasterizer (swrast) to perform actual rasterization. - * - * The internals of the implementation are private, but can be hooked - * into tnl at any time (except between RenderStart/RenderEnd) by - * calling _swsetup_Wakeup(). - */ - -#ifndef SWRAST_SETUP_H -#define SWRAST_SETUP_H - -#include "swrast/swrast.h" - -extern GLboolean -_swsetup_CreateContext( GLcontext *ctx ); - -extern void -_swsetup_DestroyContext( GLcontext *ctx ); - -extern void -_swsetup_InvalidateState( GLcontext *ctx, GLuint new_state ); - -extern void -_swsetup_Wakeup( GLcontext *ctx ); - -/* Helper function to translate a hardware vertex (as understood by - * the tnl/t_vertex.c code) to a swrast vertex. - */ -extern void -_swsetup_Translate( GLcontext *ctx, const void *vertex, SWvertex *dest ); - -#endif +
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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>
+ */
+
+/* Public interface to the swrast_setup module. This module provides
+ * an implementation of the driver interface to t_vb_render.c, and uses
+ * the software rasterizer (swrast) to perform actual rasterization.
+ *
+ * The internals of the implementation are private, but can be hooked
+ * into tnl at any time (except between RenderStart/RenderEnd) by
+ * calling _swsetup_Wakeup().
+ */
+
+#ifndef SWRAST_SETUP_H
+#define SWRAST_SETUP_H
+
+#include "swrast/swrast.h"
+
+extern GLboolean
+_swsetup_CreateContext( struct gl_context *ctx );
+
+extern void
+_swsetup_DestroyContext( struct gl_context *ctx );
+
+extern void
+_swsetup_InvalidateState( struct gl_context *ctx, GLuint new_state );
+
+extern void
+_swsetup_Wakeup( struct gl_context *ctx );
+
+/* Helper function to translate a hardware vertex (as understood by
+ * the tnl/t_vertex.c code) to a swrast vertex.
+ */
+extern void
+_swsetup_Translate( struct gl_context *ctx, const void *vertex, SWvertex *dest );
+
+#endif
|