/**
* Validate buffers and emit dirty state.
* \param r300 The context.
* \param flags See r300_prepare_flags.
* \param index_buffer The index buffer to validate. The parameter may be NULL.
* \param buffer_offset The offset passed to emit_vertex_arrays.
* \param index_bias The index bias to emit.
* \param instance_id Index of instance to render
* \return TRUE if rendering should be skipped
*/
static boolean r300_emit_states(struct r300_context *r300,
enum r300_prepare_flags flags,
struct pipe_resource *index_buffer,
int buffer_offset,
int index_bias, int instance_id)
{
boolean emit_states = flags & PREP_EMIT_STATES;
boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS;
boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL;
boolean indexed = flags & PREP_INDEXED;
boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
/* Validate buffers and emit dirty state if needed. */
if (emit_states || (emit_vertex_arrays && validate_vbos)) {
if (!r300_emit_buffer_validate(r300, validate_vbos,
index_buffer)) {
fprintf(stderr, "r300: CS space validation failed. "
"(not enough memory?) Skipping rendering.\n");
return FALSE;
}
}
if (emit_states)
r300_emit_dirty_state(r300);
if (r300->screen->caps.is_r500) {
if (r300->screen->caps.has_tcl)
r500_emit_index_bias(r300, index_bias);
else
r500_emit_index_bias(r300, 0);
}
if (emit_vertex_arrays &&
(r300->vertex_arrays_dirty ||
r300->vertex_arrays_indexed != indexed ||
r300->vertex_arrays_offset != buffer_offset ||
r300->vertex_arrays_instance_id != instance_id)) {
r300_emit_vertex_arrays(r300, buffer_offset, indexed, instance_id);
r300->vertex_arrays_dirty = FALSE;
r300->vertex_arrays_indexed = indexed;
r300->vertex_arrays_offset = buffer_offset;
r300->vertex_arrays_instance_id = instance_id;
}
if (emit_vertex_arrays_swtcl)
r300_emit_vertex_arrays_swtcl(r300, indexed);
return TRUE;
}
/**
* Validate buffers and emit dirty state.
* \param r300 The context.
* \param flags See r300_prepare_flags.
* \param index_buffer The index buffer to validate. The parameter may be NULL.
* \param aos_offset The offset passed to emit_aos.
* \param index_bias The index bias to emit.
* \return TRUE if rendering should be skipped
*/
static boolean r300_emit_states(struct r300_context *r300,
enum r300_prepare_flags flags,
struct pipe_resource *index_buffer,
int aos_offset,
int index_bias)
{
boolean first_draw = flags & PREP_FIRST_DRAW;
boolean emit_aos = flags & PREP_EMIT_AOS;
boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL;
boolean indexed = flags & PREP_INDEXED;
boolean hw_index_bias = r500_index_bias_supported(r300);
/* Validate buffers and emit dirty state if needed. */
if (first_draw) {
if (!r300_emit_buffer_validate(r300, flags & PREP_VALIDATE_VBOS,
index_buffer)) {
fprintf(stderr, "r300: CS space validation failed. "
"(not enough memory?) Skipping rendering.\n");
return FALSE;
}
r300_emit_dirty_state(r300);
if (hw_index_bias) {
if (r300->screen->caps.has_tcl)
r500_emit_index_bias(r300, index_bias);
else
r500_emit_index_bias(r300, 0);
}
if (emit_aos)
r300_emit_aos(r300, aos_offset, indexed);
if (emit_aos_swtcl)
r300_emit_aos_swtcl(r300, indexed);
}
return TRUE;
}
