aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h222
1 files changed, 0 insertions, 222 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h b/nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h
deleted file mode 100644
index 61c9b2817..000000000
--- a/nx-X11/extras/Mesa/src/mesa/swrast_setup/ss_tritmp.h
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.1
- *
- * Copyright (C) 1999-2004 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>
- */
-
-
-static void TAG(triangle)(GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
- SWvertex *v[3];
- GLfloat z[3];
- GLfloat offset;
- GLenum mode = GL_FILL;
- GLuint facing = 0;
- GLchan saved_color[3][4];
- GLchan saved_spec[3][4];
- GLfloat saved_index[3];
-
- 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]->win[0] - v[2]->win[0];
- GLfloat ey = v[0]->win[1] - v[2]->win[1];
- GLfloat fx = v[1]->win[0] - v[2]->win[0];
- GLfloat fy = v[1]->win[1] - v[2]->win[1];
- GLfloat cc = ex*fy - ey*fx;
-
- if (IND & (SS_TWOSIDE_BIT | SS_UNFILLED_BIT))
- {
- facing = (cc < 0.0) ^ ctx->Polygon._FrontBit;
- if (ctx->Stencil.TestTwoSide)
- ctx->_Facing = facing; /* for 2-sided stencil test */
-
- if (IND & SS_UNFILLED_BIT)
- mode = facing ? ctx->Polygon.BackMode : ctx->Polygon.FrontMode;
-
- if (facing == 1) {
- if (IND & SS_TWOSIDE_BIT) {
- if (IND & SS_RGBA_BIT) {
- GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data;
-
- COPY_CHAN4(saved_color[0], v[0]->color);
- COPY_CHAN4(saved_color[1], v[1]->color);
- COPY_CHAN4(saved_color[2], v[2]->color);
-
- if (VB->ColorPtr[1]->stride) {
- SS_COLOR(v[0]->color, vbcolor[e0]);
- SS_COLOR(v[1]->color, vbcolor[e1]);
- SS_COLOR(v[2]->color, vbcolor[e2]);
- }
- else {
- SS_COLOR(v[0]->color, vbcolor[0]);
- SS_COLOR(v[1]->color, vbcolor[0]);
- SS_COLOR(v[2]->color, vbcolor[0]);
- }
-
- if (VB->SecondaryColorPtr[1]) {
- GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
-
- COPY_CHAN4(saved_spec[0], v[0]->specular);
- COPY_CHAN4(saved_spec[1], v[1]->specular);
- COPY_CHAN4(saved_spec[2], v[2]->specular);
-
- if (VB->SecondaryColorPtr[1]->stride) {
- SS_SPEC(v[0]->specular, vbspec[e0]);
- SS_SPEC(v[1]->specular, vbspec[e1]);
- SS_SPEC(v[2]->specular, vbspec[e2]);
- }
- else {
- SS_SPEC(v[0]->specular, vbspec[0]);
- SS_SPEC(v[1]->specular, vbspec[0]);
- SS_SPEC(v[2]->specular, vbspec[0]);
- }
- }
- } else {
- GLfloat *vbindex = (GLfloat *)VB->IndexPtr[1]->data;
- saved_index[0] = v[0]->index;
- saved_index[1] = v[1]->index;
- saved_index[2] = v[2]->index;
-
- SS_IND(v[0]->index, (GLuint) vbindex[e0]);
- SS_IND(v[1]->index, (GLuint) vbindex[e1]);
- SS_IND(v[2]->index, (GLuint) vbindex[e2]);
- }
- }
- }
- }
-
- if (IND & SS_OFFSET_BIT)
- {
- offset = ctx->Polygon.OffsetUnits * ctx->DrawBuffer->_MRD;
- z[0] = v[0]->win[2];
- z[1] = v[1]->win[2];
- z[2] = v[2]->win[2];
- 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;
- /* Unfortunately, we need to clamp to prevent negative Zs below.
- * Technically, we should do the clamping per-fragment.
- */
- offset = MAX2(offset, -v[0]->win[2]);
- offset = MAX2(offset, -v[1]->win[2]);
- offset = MAX2(offset, -v[2]->win[2]);
- }
- }
- }
-
- if (mode == GL_POINT) {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetPoint) {
- v[0]->win[2] += offset;
- v[1]->win[2] += offset;
- v[2]->win[2] += offset;
- }
- _swsetup_render_point_tri( ctx, e0, e1, e2, facing );
- } else if (mode == GL_LINE) {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetLine) {
- v[0]->win[2] += offset;
- v[1]->win[2] += offset;
- v[2]->win[2] += offset;
- }
- _swsetup_render_line_tri( ctx, e0, e1, e2, facing );
- } else {
- if ((IND & SS_OFFSET_BIT) && ctx->Polygon.OffsetFill) {
- v[0]->win[2] += offset;
- v[1]->win[2] += offset;
- v[2]->win[2] += offset;
- }
- _swrast_Triangle( ctx, v[0], v[1], v[2] );
- }
-
- if (IND & SS_OFFSET_BIT) {
- v[0]->win[2] = z[0];
- v[1]->win[2] = z[1];
- v[2]->win[2] = z[2];
- }
-
- if (IND & SS_TWOSIDE_BIT) {
- if (facing == 1) {
- if (IND & SS_RGBA_BIT) {
- COPY_CHAN4(v[0]->color, saved_color[0]);
- COPY_CHAN4(v[1]->color, saved_color[1]);
- COPY_CHAN4(v[2]->color, saved_color[2]);
- if (VB->SecondaryColorPtr[1]) {
- COPY_CHAN4(v[0]->specular, saved_spec[0]);
- COPY_CHAN4(v[1]->specular, saved_spec[1]);
- COPY_CHAN4(v[2]->specular, saved_spec[2]);
- }
- } else {
- v[0]->index = saved_index[0];
- v[1]->index = saved_index[1];
- v[2]->index = saved_index[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;
- 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 18:26:58 +0000