KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add position_invarient support

This commit is contained in:
Keith Whitwell 2006-03-02 20:16:34 +00:00
parent da16813f43
commit f4ab5654d0
1 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
src/mesa/tnl/t_vb_arbprogram.c
View File

@ -1282,7 +1282,8 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
m->nr_inputs = m->nr_outputs = 0;
for (i = 0; i < _TNL_ATTRIB_MAX; i++) {
if (program->Base.InputsRead & (1<<i)) {
if (program->Base.InputsRead & (1<<i) ||
(i == VERT_ATTRIB_POS && program->IsPositionInvariant)) {
GLuint j = m->nr_inputs++;
m->input[j].idx = i;
m->input[j].data = (GLfloat *)m->VB->AttribPtr[i]->data;
@ -1293,7 +1294,8 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
}
for (i = 0; i < VERT_RESULT_MAX; i++) {
if (program->Base.OutputsWritten & (1 << i)) {
if (program->Base.OutputsWritten & (1 << i) ||
(i == VERT_RESULT_HPOS && program->IsPositionInvariant)) {
GLuint j = m->nr_outputs++;
m->output[j].idx = i;
m->output[j].data = (GLfloat *)m->attribs[i].data;
@ -1316,6 +1318,7 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
STRIDE_F(m->input[j].data, m->input[j].stride);
}
if (p->compiled_func) {
call_func( p, m );
}
@ -1326,6 +1329,15 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
}
}
/* If the program is position invariant, multiply the input position
* by the MVP matrix and store in the vertex position result register.
*/
if (program->IsPositionInvariant) {
TRANSFORM_POINT( m->File[0][REG_OUT0+0],
ctx->_ModelProjectMatrix.m,
m->File[0][REG_IN0+0]);
}
for (j = 0; j < m->nr_outputs; j++) {
GLuint idx = REG_OUT0 + m->output[j].idx;
m->output[j].data[0] = m->File[0][idx][0];
@ -1334,6 +1346,7 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
m->output[j].data[3] = m->File[0][idx][3];
m->output[j].data += 4;
}
}
/* Setup the VB pointers so that the next pipeline stages get
@ -1350,6 +1363,8 @@ run_arb_vertex_program(GLcontext *ctx, struct tnl_pipeline_stage *stage)
VB->ClipPtr->count = VB->Count;
outputs = program->Base.OutputsWritten;
if (program->IsPositionInvariant)
outputs |= (1<<VERT_RESULT_HPOS);
if (outputs & (1<<VERT_RESULT_COL0)) {
VB->ColorPtr[0] = &m->attribs[VERT_RESULT_COL0];