/**
* 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 ||
tnl->render_inputs_bitset != swsetup->last_index_bitset) {
GLbitfield64 index_bitset = tnl->render_inputs_bitset;
struct tnl_attr_map map[_TNL_ATTRIB_MAX];
unsigned int i, e = 0;
swsetup->intColors = intColors;
EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, attrib[VARYING_SLOT_POS] );
if (index_bitset & BITFIELD64_BIT(_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[VARYING_SLOT_COL0]);
}
if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_COLOR1)) {
EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_4F, attrib[VARYING_SLOT_COL1]);
}
if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_FOG)) {
const GLint emit = ctx->FragmentProgram._Current ? EMIT_4F : EMIT_1F;
EMIT_ATTR( _TNL_ATTRIB_FOG, emit, attrib[VARYING_SLOT_FOGC]);
}
if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_TEX0, _TNL_NUM_TEX))
{
for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) {
if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_TEX(i))) {
EMIT_ATTR( _TNL_ATTRIB_TEX(i), EMIT_4F,
attrib[VARYING_SLOT_TEX0 + i] );
}
}
}
/* shader varying vars */
if (index_bitset & BITFIELD64_RANGE(_TNL_ATTRIB_GENERIC0, _TNL_NUM_GENERIC)) {
for (i = 0; i < ctx->Const.MaxVarying; i++) {
if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_GENERIC(i))) {
EMIT_ATTR( _TNL_ATTRIB_GENERIC(i), VARYING_EMIT_STYLE,
attrib[VARYING_SLOT_VAR0 + i] );
}
}
}
if (index_bitset & BITFIELD64_BIT(_TNL_ATTRIB_POINTSIZE))
EMIT_ATTR( _TNL_ATTRIB_POINTSIZE, EMIT_1F, pointSize );
_tnl_install_attrs( ctx, map, e,
ctx->Viewport._WindowMap.m,
sizeof(SWvertex) );
swsetup->last_index_bitset = index_bitset;
}
}
void
_tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
const struct gl_vertex_program *vp = ctx->VertexProgram._Current;
const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
if (new_state & (_NEW_HINT | _NEW_PROGRAM)) {
ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog);
tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
|| !tnl->AllowPixelFog) && !fp;
}
tnl->pipeline.new_state |= new_state;
/* Calculate tnl->render_inputs. This bitmask indicates which vertex
* attributes need to be emitted to the rasterizer.
*/
if (ctx->Visual.rgbMode) {
GLuint i;
RENDERINPUTS_ZERO( tnl->render_inputs_bitset );
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) {
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 );
}
if (NEED_SECONDARY_COLOR(ctx))
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 );
for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
if (ctx->Texture._EnabledCoordUnits & (1 << i) ||
(fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) {
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) );
}
}
}
else {
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX );
}
if (ctx->Fog.Enabled) {
/* fixed-function fog */
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
}
else if (fp) {
if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) {
/* fragment program needs fog coord */
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
}
}
if (ctx->Polygon.FrontMode != GL_FILL ||
ctx->Polygon.BackMode != GL_FILL)
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG );
if (ctx->RenderMode == GL_FEEDBACK)
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 );
if (ctx->Point._Attenuated ||
(ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled))
RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE );
/* check for varying vars which are written by the vertex program */
if (vp) {
GLuint i;
for (i = 0; i < MAX_VARYING; i++) {
if (vp->Base.OutputsWritten & BITFIELD64_BIT(VERT_RESULT_VAR0 + i)) {
RENDERINPUTS_SET(tnl->render_inputs_bitset,
_TNL_ATTRIB_GENERIC(i));
}
}
}
}