-static void r600_emit_scissor_state(struct r600_context *rctx, struct r600_atom *atom)
-{
- struct radeon_winsys_cs *cs = rctx->b.rings.gfx.cs;
- struct r600_scissor_state *rstate = &rctx->scissor;
- struct pipe_scissor_state *state;
- bool do_disable_workaround = false;
- uint32_t dirty_mask;
- unsigned i, offset;
- uint32_t tl, br;
-
- if (rctx->b.chip_class == R600 && !rctx->scissor.enable) {
- tl = S_028240_TL_X(0) | S_028240_TL_Y(0) | S_028240_WINDOW_OFFSET_DISABLE(1);
- br = S_028244_BR_X(8192) | S_028244_BR_Y(8192);
- do_disable_workaround = true;
- }
-
- dirty_mask = rstate->dirty_mask;
- while (dirty_mask != 0)
- {
- i = u_bit_scan(&dirty_mask);
- offset = i * 4 * 2;
- radeon_set_context_reg_seq(cs, R_028250_PA_SC_VPORT_SCISSOR_0_TL + offset, 2);
- if (!do_disable_workaround) {
- state = &rstate->scissor[i];
- tl = S_028240_TL_X(state->minx) | S_028240_TL_Y(state->miny) |
- S_028240_WINDOW_OFFSET_DISABLE(1);
- br = S_028244_BR_X(state->maxx) | S_028244_BR_Y(state->maxy);
- }
- radeon_emit(cs, tl);
- radeon_emit(cs, br);
- }
- rstate->dirty_mask = 0;
- rstate->atom.num_dw = 0;
-}
-
-static void r600_set_scissor_states(struct pipe_context *ctx,
- unsigned start_slot,
- unsigned num_scissors,
- const struct pipe_scissor_state *state)
-{
- struct r600_context *rctx = (struct r600_context *)ctx;
- struct r600_scissor_state *rstate = &rctx->scissor;
- int i;
-
- for (i = start_slot ; i < start_slot + num_scissors; i++)
- rstate->scissor[i] = state[i - start_slot];
- rstate->dirty_mask |= ((1 << num_scissors) - 1) << start_slot;
- rstate->atom.num_dw = util_bitcount(rstate->dirty_mask) * 4;
-
- if (rctx->b.chip_class == R600 && !rstate->enable)
- return;
-
- r600_mark_atom_dirty(rctx, &rstate->atom);
-}
-
-static struct r600_resource *r600_buffer_create_helper(struct r600_screen *rscreen,
- unsigned size, unsigned alignment)
-{
- struct pipe_resource buffer;
-
- memset(&buffer, 0, sizeof buffer);
- buffer.target = PIPE_BUFFER;
- buffer.format = PIPE_FORMAT_R8_UNORM;
- buffer.bind = PIPE_BIND_CUSTOM;
- buffer.usage = PIPE_USAGE_DEFAULT;
- buffer.flags = 0;
- buffer.width0 = size;
- buffer.height0 = 1;
- buffer.depth0 = 1;
- buffer.array_size = 1;
-
- return (struct r600_resource*)
- r600_buffer_create(&rscreen->b.b, &buffer, alignment);
-}
-