diff options
Diffstat (limited to 'mesalib/src/mesa/swrast/s_feedback.c')
-rw-r--r-- | mesalib/src/mesa/swrast/s_feedback.c | 276 |
1 files changed, 138 insertions, 138 deletions
diff --git a/mesalib/src/mesa/swrast/s_feedback.c b/mesalib/src/mesa/swrast/s_feedback.c index e548bf9c3..00f92d463 100644 --- a/mesalib/src/mesa/swrast/s_feedback.c +++ b/mesalib/src/mesa/swrast/s_feedback.c @@ -1,138 +1,138 @@ -/*
- * Mesa 3-D graphics library
- * Version: 7.0
- *
- * 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.
- */
-
-#include "main/glheader.h"
-#include "main/colormac.h"
-#include "main/feedback.h"
-#include "main/macros.h"
-
-#include "s_context.h"
-#include "s_feedback.h"
-#include "s_triangle.h"
-
-
-
-static void
-feedback_vertex(struct gl_context * ctx, const SWvertex * v, const SWvertex * pv)
-{
- GLfloat win[4];
- const GLfloat *vtc = v->attrib[FRAG_ATTRIB_TEX0];
- const GLfloat *color = v->attrib[FRAG_ATTRIB_COL0];
-
- win[0] = v->attrib[FRAG_ATTRIB_WPOS][0];
- win[1] = v->attrib[FRAG_ATTRIB_WPOS][1];
- win[2] = v->attrib[FRAG_ATTRIB_WPOS][2] / ctx->DrawBuffer->_DepthMaxF;
- win[3] = 1.0F / v->attrib[FRAG_ATTRIB_WPOS][3];
-
- _mesa_feedback_vertex(ctx, win, color, vtc);
-}
-
-
-/*
- * Put triangle in feedback buffer.
- */
-void
-_swrast_feedback_triangle(struct gl_context *ctx, const SWvertex *v0,
- const SWvertex *v1, const SWvertex *v2)
-{
- if (!_swrast_culltriangle(ctx, v0, v1, v2)) {
- _mesa_feedback_token(ctx, (GLfloat) (GLint) GL_POLYGON_TOKEN);
- _mesa_feedback_token(ctx, (GLfloat) 3); /* three vertices */
-
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- feedback_vertex(ctx, v0, v0);
- feedback_vertex(ctx, v1, v1);
- feedback_vertex(ctx, v2, v2);
- }
- else {
- feedback_vertex(ctx, v0, v2);
- feedback_vertex(ctx, v1, v2);
- feedback_vertex(ctx, v2, v2);
- }
- }
-}
-
-
-void
-_swrast_feedback_line(struct gl_context *ctx, const SWvertex *v0,
- const SWvertex *v1)
-{
- GLenum token = GL_LINE_TOKEN;
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- if (swrast->StippleCounter == 0)
- token = GL_LINE_RESET_TOKEN;
-
- _mesa_feedback_token(ctx, (GLfloat) (GLint) token);
-
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- feedback_vertex(ctx, v0, v0);
- feedback_vertex(ctx, v1, v1);
- }
- else {
- feedback_vertex(ctx, v0, v1);
- feedback_vertex(ctx, v1, v1);
- }
-
- swrast->StippleCounter++;
-}
-
-
-void
-_swrast_feedback_point(struct gl_context *ctx, const SWvertex *v)
-{
- _mesa_feedback_token(ctx, (GLfloat) (GLint) GL_POINT_TOKEN);
- feedback_vertex(ctx, v, v);
-}
-
-
-void
-_swrast_select_triangle(struct gl_context *ctx, const SWvertex *v0,
- const SWvertex *v1, const SWvertex *v2)
-{
- if (!_swrast_culltriangle(ctx, v0, v1, v2)) {
- const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF;
-
- _mesa_update_hitflag( ctx, v0->attrib[FRAG_ATTRIB_WPOS][2] * zs );
- _mesa_update_hitflag( ctx, v1->attrib[FRAG_ATTRIB_WPOS][2] * zs );
- _mesa_update_hitflag( ctx, v2->attrib[FRAG_ATTRIB_WPOS][2] * zs );
- }
-}
-
-
-void
-_swrast_select_line(struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1)
-{
- const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF;
- _mesa_update_hitflag( ctx, v0->attrib[FRAG_ATTRIB_WPOS][2] * zs );
- _mesa_update_hitflag( ctx, v1->attrib[FRAG_ATTRIB_WPOS][2] * zs );
-}
-
-
-void
-_swrast_select_point(struct gl_context *ctx, const SWvertex *v)
-{
- const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF;
- _mesa_update_hitflag( ctx, v->attrib[FRAG_ATTRIB_WPOS][2] * zs );
-}
+/* + * Mesa 3-D graphics library + * Version: 7.0 + * + * 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. + */ + +#include "main/glheader.h" +#include "main/colormac.h" +#include "main/feedback.h" +#include "main/macros.h" + +#include "s_context.h" +#include "s_feedback.h" +#include "s_triangle.h" + + + +static void +feedback_vertex(struct gl_context * ctx, const SWvertex * v, const SWvertex * pv) +{ + GLfloat win[4]; + const GLfloat *vtc = v->attrib[FRAG_ATTRIB_TEX0]; + const GLfloat *color = v->attrib[FRAG_ATTRIB_COL0]; + + win[0] = v->attrib[FRAG_ATTRIB_WPOS][0]; + win[1] = v->attrib[FRAG_ATTRIB_WPOS][1]; + win[2] = v->attrib[FRAG_ATTRIB_WPOS][2] / ctx->DrawBuffer->_DepthMaxF; + win[3] = 1.0F / v->attrib[FRAG_ATTRIB_WPOS][3]; + + _mesa_feedback_vertex(ctx, win, color, vtc); +} + + +/* + * Put triangle in feedback buffer. + */ +void +_swrast_feedback_triangle(struct gl_context *ctx, const SWvertex *v0, + const SWvertex *v1, const SWvertex *v2) +{ + if (!_swrast_culltriangle(ctx, v0, v1, v2)) { + _mesa_feedback_token(ctx, (GLfloat) (GLint) GL_POLYGON_TOKEN); + _mesa_feedback_token(ctx, (GLfloat) 3); /* three vertices */ + + if (ctx->Light.ShadeModel == GL_SMOOTH) { + feedback_vertex(ctx, v0, v0); + feedback_vertex(ctx, v1, v1); + feedback_vertex(ctx, v2, v2); + } + else { + feedback_vertex(ctx, v0, v2); + feedback_vertex(ctx, v1, v2); + feedback_vertex(ctx, v2, v2); + } + } +} + + +void +_swrast_feedback_line(struct gl_context *ctx, const SWvertex *v0, + const SWvertex *v1) +{ + GLenum token = GL_LINE_TOKEN; + SWcontext *swrast = SWRAST_CONTEXT(ctx); + + if (swrast->StippleCounter == 0) + token = GL_LINE_RESET_TOKEN; + + _mesa_feedback_token(ctx, (GLfloat) (GLint) token); + + if (ctx->Light.ShadeModel == GL_SMOOTH) { + feedback_vertex(ctx, v0, v0); + feedback_vertex(ctx, v1, v1); + } + else { + feedback_vertex(ctx, v0, v1); + feedback_vertex(ctx, v1, v1); + } + + swrast->StippleCounter++; +} + + +void +_swrast_feedback_point(struct gl_context *ctx, const SWvertex *v) +{ + _mesa_feedback_token(ctx, (GLfloat) (GLint) GL_POINT_TOKEN); + feedback_vertex(ctx, v, v); +} + + +void +_swrast_select_triangle(struct gl_context *ctx, const SWvertex *v0, + const SWvertex *v1, const SWvertex *v2) +{ + if (!_swrast_culltriangle(ctx, v0, v1, v2)) { + const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; + + _mesa_update_hitflag( ctx, v0->attrib[FRAG_ATTRIB_WPOS][2] * zs ); + _mesa_update_hitflag( ctx, v1->attrib[FRAG_ATTRIB_WPOS][2] * zs ); + _mesa_update_hitflag( ctx, v2->attrib[FRAG_ATTRIB_WPOS][2] * zs ); + } +} + + +void +_swrast_select_line(struct gl_context *ctx, const SWvertex *v0, const SWvertex *v1) +{ + const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; + _mesa_update_hitflag( ctx, v0->attrib[FRAG_ATTRIB_WPOS][2] * zs ); + _mesa_update_hitflag( ctx, v1->attrib[FRAG_ATTRIB_WPOS][2] * zs ); +} + + +void +_swrast_select_point(struct gl_context *ctx, const SWvertex *v) +{ + const GLfloat zs = 1.0F / ctx->DrawBuffer->_DepthMaxF; + _mesa_update_hitflag( ctx, v->attrib[FRAG_ATTRIB_WPOS][2] * zs ); +} |