diff options
Diffstat (limited to 'src/mesa/vbo/vbo_save_draw.c')
| -rw-r--r-- | src/mesa/vbo/vbo_save_draw.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/mesa/vbo/vbo_save_draw.c b/src/mesa/vbo/vbo_save_draw.c index 6fa3f1a7e4..7ee0a9a33f 100644 --- a/src/mesa/vbo/vbo_save_draw.c +++ b/src/mesa/vbo/vbo_save_draw.c @@ -110,6 +110,9 @@ static void vbo_bind_vertex_list( GLcontext *ctx, GLuint data = node->buffer_offset; const GLuint *map; GLuint attr; + GLubyte node_attrsz[VBO_ATTRIB_MAX]; /* copy of node->attrsz[] */ + + memcpy(node_attrsz, node->attrsz, sizeof(node->attrsz)); /* Install the default (ie Current) attributes first, then overlay * all active ones. @@ -135,13 +138,26 @@ static void vbo_bind_vertex_list( GLcontext *ctx, save->inputs[attr + 16] = &vbo->generic_currval[attr]; } map = vbo->map_vp_arb; + + /* check if VERT_ATTRIB_POS is not read but VERT_BIT_GENERIC0 is read. + * In that case we effectively need to route the data from + * glVertexAttrib(0, val) calls to feed into the GENERIC0 input. + */ + if ((ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_POS) == 0 && + (ctx->VertexProgram._Current->Base.InputsRead & VERT_BIT_GENERIC0)) { + save->inputs[16] = save->inputs[0]; + node_attrsz[16] = node_attrsz[0]; + node_attrsz[0] = 0; + } break; + default: + assert(0); } for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) { GLuint src = map[attr]; - if (node->attrsz[src]) { + if (node_attrsz[src]) { /* override the default array set above */ save->inputs[attr] = &arrays[attr]; |