| /************************************************************************** |
| * |
| * Copyright 2011 Christian König |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| **************************************************************************/ |
| |
| #ifndef vl_zscan_h |
| #define vl_zscan_h |
| |
| #include "pipe/p_compiler.h" |
| #include "pipe/p_state.h" |
| |
| /* |
| * shader based zscan and quantification |
| * expect usage of vl_vertex_buffers as a todo list |
| */ |
| struct vl_zscan |
| { |
| struct pipe_context *pipe; |
| |
| unsigned buffer_width; |
| unsigned buffer_height; |
| |
| unsigned num_channels; |
| |
| unsigned blocks_per_line; |
| unsigned blocks_total; |
| |
| void *rs_state; |
| void *blend; |
| |
| void *samplers[3]; |
| |
| void *vs, *fs; |
| }; |
| |
| struct vl_zscan_buffer |
| { |
| struct pipe_viewport_state viewport; |
| struct pipe_framebuffer_state fb_state; |
| |
| struct pipe_sampler_view *src, *layout, *quant; |
| struct pipe_surface *dst; |
| }; |
| |
| extern const int vl_zscan_linear[]; |
| extern const int vl_zscan_normal[]; |
| extern const int vl_zscan_alternate[]; |
| |
| struct pipe_sampler_view * |
| vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line); |
| |
| bool |
| vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe, |
| unsigned buffer_width, unsigned buffer_height, |
| unsigned blocks_per_line, unsigned blocks_total, |
| unsigned num_channels); |
| |
| void |
| vl_zscan_cleanup(struct vl_zscan *zscan); |
| |
| bool |
| vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, |
| struct pipe_sampler_view *src, struct pipe_surface *dst); |
| |
| void |
| vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer); |
| |
| void |
| vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout); |
| |
| void |
| vl_zscan_upload_quant(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, |
| const uint8_t matrix[64], bool intra); |
| |
| void |
| vl_zscan_render(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer, unsigned num_instances); |
| |
| #endif |