static void sisRenderStart( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
sisContextPtr smesa = SIS_CONTEXT(ctx);
/* Check for projective texturing. Make sure all texcoord
* pointers point to something. (fix in mesa?)
*/
sisCheckTexSizes( ctx );
if (ctx->Color._DrawDestMask == FRONT_LEFT_BIT &&
smesa->driDrawable->numClipRects != 0)
{
multipass_cliprect(ctx, 0);
if (smesa->driDrawable->numClipRects > 1)
tnl->Driver.Render.Multipass = multipass_cliprect;
else
tnl->Driver.Render.Multipass = NULL;
} else {
tnl->Driver.Render.Multipass = NULL;
}
}
static void sisRenderStart( struct gl_context *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
sisContextPtr smesa = SIS_CONTEXT(ctx);
struct vertex_buffer *VB = &tnl->vb;
DECLARE_RENDERINPUTS(index_bitset);
GLuint AGPParseSet = smesa->AGPParseSet;
GLboolean tex_fallback = GL_FALSE;
RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset );
if (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT &&
smesa->driDrawable->numClipRects != 0)
{
multipass_cliprect(ctx, 0);
if (smesa->driDrawable->numClipRects > 1)
tnl->Driver.Render.Multipass = multipass_cliprect;
else
tnl->Driver.Render.Multipass = NULL;
} else {
tnl->Driver.Render.Multipass = NULL;
}
/* Important:
*/
VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
smesa->vertex_attr_count = 0;
/* EMIT_ATTR's must be in order as they tell t_vertex.c how to build up a
* hardware vertex.
*/
AGPParseSet &= ~(MASK_VertexDWSize | MASK_VertexDataFormat);
AGPParseSet |= SiS_PS_HAS_XYZ | SiS_PS_HAS_DIFFUSE;
if (RENDERINPUTS_TEST_RANGE( index_bitset, _TNL_FIRST_TEX, _TNL_LAST_TEX )) {
EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_4F_VIEWPORT);
AGPParseSet |= SiS_PS_HAS_W;
smesa->coloroffset = 4;
} else {
EMIT_ATTR(_TNL_ATTRIB_POS, EMIT_3F_VIEWPORT);
smesa->coloroffset = 3;
}
EMIT_ATTR(_TNL_ATTRIB_COLOR0, EMIT_4UB_4F_BGRA);
smesa->specoffset = 0;
if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 ) ||
RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
AGPParseSet |= SiS_PS_HAS_SPECULAR;
if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_COLOR1 )) {
EMIT_ATTR(_TNL_ATTRIB_COLOR1, EMIT_3UB_3F_BGR);
smesa->specoffset = smesa->coloroffset + 1;
} else {
EMIT_PAD(3);
}
if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_FOG )) {
EMIT_ATTR(_TNL_ATTRIB_FOG, EMIT_1UB_1F);
} else {
EMIT_PAD(1);
}
}
/* projective textures are not supported by the hardware */
if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX0 )) {
if (VB->AttribPtr[_TNL_ATTRIB_TEX0]->size > 2)
tex_fallback = GL_TRUE;
EMIT_ATTR(_TNL_ATTRIB_TEX0, EMIT_2F);
AGPParseSet |= SiS_PS_HAS_UV0;
}
/* Will only hit tex1 on SiS300 */
if (RENDERINPUTS_TEST( index_bitset, _TNL_ATTRIB_TEX1 )) {
if (VB->AttribPtr[_TNL_ATTRIB_TEX1]->size > 2)
tex_fallback = GL_TRUE;
EMIT_ATTR(_TNL_ATTRIB_TEX1, EMIT_2F);
AGPParseSet |= SiS_PS_HAS_UV1;
}
FALLBACK(smesa, SIS_FALLBACK_TEXTURE, tex_fallback);
if (!RENDERINPUTS_EQUAL( smesa->last_tcl_state_bitset, index_bitset )) {
smesa->AGPParseSet = AGPParseSet;
smesa->vertex_size = _tnl_install_attrs( ctx, smesa->vertex_attrs,
smesa->vertex_attr_count, smesa->hw_viewport, 0 );
smesa->vertex_size >>= 2;
smesa->AGPParseSet |= smesa->vertex_size << 28;
}
