mirror of
https://github.com/reactos/reactos.git
synced 2025-07-31 19:21:38 +00:00
Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
This commit is contained in:
Colin Finck
parent
b94e2d8ca0
commit
c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
239
dll/opengl/mesa/swrast_setup/ss_tritmp.h
Normal file
239
dll/opengl/mesa/swrast_setup/ss_tritmp.h
Normal file
|
|
@ -0,0 +1,239 @@
|
|||
/*
|
||||
* 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 )
|
||||
{
|
||||
#if IND & SS_TWOSIDE_BIT
|
||||
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
|
||||
SScontext *swsetup = SWSETUP_CONTEXT(ctx);
|
||||
GLchan saved_color[3][4] = { { 0 } };
|
||||
GLfloat saved_col0[3][4] = { { 0 } };
|
||||
#endif
|
||||
SWvertex *verts = SWSETUP_CONTEXT(ctx)->verts;
|
||||
SWvertex *v[3];
|
||||
#if IND & SS_OFFSET_BIT
|
||||
GLfloat z[3];
|
||||
#endif
|
||||
GLfloat oz0, oz1, oz2;
|
||||
GLenum mode = GL_FILL;
|
||||
GLuint facing = 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;
|
||||
#endif
|
||||
|
||||
#if IND & SS_TWOSIDE_BIT
|
||||
if (facing == 1) {
|
||||
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_COL]);
|
||||
COPY_4V(saved_col0[1], v[1]->attrib[FRAG_ATTRIB_COL]);
|
||||
COPY_4V(saved_col0[2], v[2]->attrib[FRAG_ATTRIB_COL]);
|
||||
}
|
||||
|
||||
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_COL], vbcolor[e0]);
|
||||
COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL], vbcolor[e1]);
|
||||
COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL], 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_COL], vbcolor[0]);
|
||||
COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL], vbcolor[0]);
|
||||
COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL], vbcolor[0]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
#if IND & SS_OFFSET_BIT
|
||||
{
|
||||
GLfloat offset;
|
||||
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);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
|
||||
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
|
||||
if (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;
|
||||
}
|
||||
#endif
|
||||
_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];
|
||||
}
|
||||
#endif
|
||||
|
||||
#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_COL], saved_col0[0]);
|
||||
COPY_4V(v[1]->attrib[FRAG_ATTRIB_COL], saved_col0[1]);
|
||||
COPY_4V(v[2]->attrib[FRAG_ATTRIB_COL], saved_col0[2]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* 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
|
||||
Loading…
Add table
Add a link
Reference in a new issue