[Mesa-dev] [PATCH 1/2] vl: add motion adaptive deinterlacer
Christian König
deathsimple at vodafone.de
Fri Feb 14 00:18:40 PST 2014
A really nice piece of work, thx allot.
Both patches reviewed and pushed upstream.
Cheers,
Christian.
Am 13.02.2014 21:32, schrieb Grigori Goronzy:
> ---
> src/gallium/auxiliary/Makefile.sources | 3 +-
> src/gallium/auxiliary/vl/vl_deint_filter.c | 491 +++++++++++++++++++++++++++++
> src/gallium/auxiliary/vl/vl_deint_filter.h | 78 +++++
> 3 files changed, 571 insertions(+), 1 deletion(-)
> create mode 100644 src/gallium/auxiliary/vl/vl_deint_filter.c
> create mode 100644 src/gallium/auxiliary/vl/vl_deint_filter.h
>
> diff --git a/src/gallium/auxiliary/Makefile.sources b/src/gallium/auxiliary/Makefile.sources
> index c89cbdd..19004e0 100644
> --- a/src/gallium/auxiliary/Makefile.sources
> +++ b/src/gallium/auxiliary/Makefile.sources
> @@ -155,7 +155,8 @@ C_SOURCES := \
> vl/vl_idct.c \
> vl/vl_mc.c \
> vl/vl_vertex_buffers.c \
> - vl/vl_video_buffer.c
> + vl/vl_video_buffer.c \
> + vl/vl_deint_filter.c
>
> GENERATED_SOURCES := \
> indices/u_indices_gen.c \
> diff --git a/src/gallium/auxiliary/vl/vl_deint_filter.c b/src/gallium/auxiliary/vl/vl_deint_filter.c
> new file mode 100644
> index 0000000..9b05154
> --- /dev/null
> +++ b/src/gallium/auxiliary/vl/vl_deint_filter.c
> @@ -0,0 +1,491 @@
> +/**************************************************************************
> + *
> + * Copyright 2013 Grigori Goronzy <greg at chown.ath.cx>.
> + * 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.
> + *
> + **************************************************************************/
> +
> +/*
> + * References:
> + *
> + * Lin, S. F., Chang, Y. L., & Chen, L. G. (2003).
> + * Motion adaptive interpolation with horizontal motion detection for deinterlacing.
> + * Consumer Electronics, IEEE Transactions on, 49(4), 1256-1265.
> + *
> + * Pei-Yin, C. H. E. N., & Yao-Hsien, L. A. I. (2007).
> + * A low-complexity interpolation method for deinterlacing.
> + * IEICE transactions on information and systems, 90(2), 606-608.
> + *
> + */
> +
> +#include <stdio.h>
> +
> +#include "pipe/p_context.h"
> +
> +#include "tgsi/tgsi_ureg.h"
> +
> +#include "util/u_draw.h"
> +#include "util/u_memory.h"
> +#include "util/u_math.h"
> +
> +#include "vl_types.h"
> +#include "vl_video_buffer.h"
> +#include "vl_vertex_buffers.h"
> +#include "vl_deint_filter.h"
> +
> +enum VS_OUTPUT
> +{
> + VS_O_VPOS = 0,
> + VS_O_VTEX = 0
> +};
> +
> +static void *
> +create_vert_shader(struct vl_deint_filter *filter)
> +{
> + struct ureg_program *shader;
> + struct ureg_src i_vpos;
> + struct ureg_dst o_vpos, o_vtex;
> +
> + shader = ureg_create(TGSI_PROCESSOR_VERTEX);
> + if (!shader)
> + return NULL;
> +
> + i_vpos = ureg_DECL_vs_input(shader, 0);
> + o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS);
> + o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX);
> +
> + ureg_MOV(shader, o_vpos, i_vpos);
> + ureg_MOV(shader, o_vtex, i_vpos);
> +
> + ureg_END(shader);
> +
> + return ureg_create_shader_and_destroy(shader, filter->pipe);
> +}
> +
> +static void *
> +create_copy_frag_shader(struct vl_deint_filter *filter, unsigned field)
> +{
> + struct ureg_program *shader;
> + struct ureg_src i_vtex;
> + struct ureg_src sampler;
> + struct ureg_dst o_fragment;
> + struct ureg_dst t_tex;
> +
> + shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
> + if (!shader) {
> + return NULL;
> + }
> + t_tex = ureg_DECL_temporary(shader);
> +
> + i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
> + sampler = ureg_DECL_sampler(shader, 2);
> + o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
> +
> + ureg_MOV(shader, t_tex, i_vtex);
> + if (field) {
> + ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
> + ureg_imm4f(shader, 0, 0, 1.0f, 0));
> + } else {
> + ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
> + ureg_imm1f(shader, 0));
> + }
> +
> + ureg_TEX(shader, o_fragment, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler);
> +
> + ureg_release_temporary(shader, t_tex);
> + ureg_END(shader);
> +
> + return ureg_create_shader_and_destroy(shader, filter->pipe);
> +}
> +
> +static void *
> +create_deint_frag_shader(struct vl_deint_filter *filter, unsigned field,
> + struct vertex2f *sizes, bool spatial_filter)
> +{
> + struct ureg_program *shader;
> + struct ureg_src i_vtex;
> + struct ureg_src sampler_cur;
> + struct ureg_src sampler_prevprev;
> + struct ureg_src sampler_prev;
> + struct ureg_src sampler_next;
> + struct ureg_dst o_fragment;
> + struct ureg_dst t_tex;
> + struct ureg_dst t_comp_top, t_comp_bot;
> + struct ureg_dst t_diff;
> + struct ureg_dst t_a, t_b;
> + struct ureg_dst t_weave, t_linear;
> +
> + shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
> + if (!shader) {
> + return NULL;
> + }
> +
> + t_tex = ureg_DECL_temporary(shader);
> + t_comp_top = ureg_DECL_temporary(shader);
> + t_comp_bot = ureg_DECL_temporary(shader);
> + t_diff = ureg_DECL_temporary(shader);
> + t_a = ureg_DECL_temporary(shader);
> + t_b = ureg_DECL_temporary(shader);
> + t_weave = ureg_DECL_temporary(shader);
> + t_linear = ureg_DECL_temporary(shader);
> +
> + i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
> + sampler_prevprev = ureg_DECL_sampler(shader, 0);
> + sampler_prev = ureg_DECL_sampler(shader, 1);
> + sampler_cur = ureg_DECL_sampler(shader, 2);
> + sampler_next = ureg_DECL_sampler(shader, 3);
> + o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
> +
> + // we don't care about ZW interpolation (allows better optimization)
> + ureg_MOV(shader, t_tex, i_vtex);
> + ureg_MOV(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_ZW),
> + ureg_imm1f(shader, 0));
> +
> + // sample between texels for cheap lowpass
> + ureg_ADD(shader, t_comp_top, ureg_src(t_tex),
> + ureg_imm4f(shader, sizes->x * 0.5f, sizes->y * -0.5f, 0, 0));
> + ureg_ADD(shader, t_comp_bot, ureg_src(t_tex),
> + ureg_imm4f(shader, sizes->x * -0.5f, sizes->y * 0.5f, 1.0f, 0));
> +
> + if (field == 0) {
> + /* interpolating top field -> current field is a bottom field */
> + // cur vs prev2
> + ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
> + ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prevprev);
> + ureg_SUB(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_src(t_b));
> + // prev vs next
> + ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prev);
> + ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_next);
> + ureg_SUB(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_src(t_b));
> + } else {
> + /* interpolating bottom field -> current field is a top field */
> + // cur vs prev2
> + ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
> + ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_prevprev);
> + ureg_SUB(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_a), ureg_src(t_b));
> + // prev vs next
> + ureg_TEX(shader, t_a, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
> + ureg_TEX(shader, t_b, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_next);
> + ureg_SUB(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_Y), ureg_src(t_a), ureg_src(t_b));
> + }
> +
> + // absolute maximum of differences
> + ureg_MAX(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_abs(ureg_src(t_diff)),
> + ureg_scalar(ureg_abs(ureg_src(t_diff)), TGSI_SWIZZLE_Y));
> +
> + if (field == 0) {
> + /* weave with prev top field */
> + ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_tex), sampler_prev);
> + /* get linear interpolation from current bottom field */
> + ureg_ADD(shader, t_comp_top, ureg_src(t_tex), ureg_imm4f(shader, 0, sizes->y * -1.0f, 1.0f, 0));
> + ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_top), sampler_cur);
> + } else {
> + /* weave with prev bottom field */
> + ureg_ADD(shader, t_comp_bot, ureg_src(t_tex), ureg_imm4f(shader, 0, 0, 1.0f, 0));
> + ureg_TEX(shader, t_weave, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_prev);
> + /* get linear interpolation from current top field */
> + ureg_ADD(shader, t_comp_bot, ureg_src(t_tex), ureg_imm4f(shader, 0, sizes->y * 1.0f, 0, 0));
> + ureg_TEX(shader, t_linear, TGSI_TEXTURE_2D_ARRAY, ureg_src(t_comp_bot), sampler_cur);
> + }
> +
> + // mix between weave and linear
> + // fully weave if diff < 6 (0.02353), fully interpolate if diff > 14 (0.05490)
> + ureg_ADD(shader, ureg_writemask(t_diff, TGSI_WRITEMASK_X), ureg_src(t_diff),
> + ureg_imm4f(shader, -0.02353f, 0, 0, 0));
> + ureg_MUL(shader, ureg_saturate(ureg_writemask(t_diff, TGSI_WRITEMASK_X)),
> + ureg_src(t_diff), ureg_imm4f(shader, 31.8750f, 0, 0, 0));
> + ureg_LRP(shader, ureg_writemask(o_fragment, TGSI_WRITEMASK_X), ureg_src(t_diff),
> + ureg_src(t_linear), ureg_src(t_weave));
> +
> + ureg_release_temporary(shader, t_tex);
> + ureg_release_temporary(shader, t_comp_top);
> + ureg_release_temporary(shader, t_comp_bot);
> + ureg_release_temporary(shader, t_diff);
> + ureg_release_temporary(shader, t_a);
> + ureg_release_temporary(shader, t_b);
> + ureg_release_temporary(shader, t_weave);
> + ureg_release_temporary(shader, t_linear);
> + ureg_END(shader);
> +
> + return ureg_create_shader_and_destroy(shader, filter->pipe);
> +}
> +
> +bool
> +vl_deint_filter_init(struct vl_deint_filter *filter, struct pipe_context *pipe,
> + unsigned video_width, unsigned video_height,
> + bool skip_chroma, bool spatial_filter)
> +{
> + struct pipe_rasterizer_state rs_state;
> + struct pipe_blend_state blend;
> + struct pipe_sampler_state sampler;
> + struct pipe_vertex_element ve;
> + struct vertex2f sizes;
> + struct pipe_video_buffer templ;
> +
> + assert(filter && pipe);
> + assert(video_width && video_height);
> +
> + memset(filter, 0, sizeof(*filter));
> + filter->pipe = pipe;
> + filter->skip_chroma = skip_chroma;
> + filter->video_width = video_width;
> + filter->video_height = video_height;
> +
> + /* TODO: handle other than 4:2:0 subsampling */
> + memset(&templ, 0, sizeof(templ));
> + templ.buffer_format = PIPE_FORMAT_YV12;
> + templ.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
> + templ.width = video_width;
> + templ.height = video_height;
> + templ.interlaced = true;
> + filter->video_buffer = vl_video_buffer_create(pipe, &templ);
> + if (!filter->video_buffer)
> + goto error_video_buffer;
> +
> + memset(&rs_state, 0, sizeof(rs_state));
> + rs_state.half_pixel_center = true;
> + rs_state.bottom_edge_rule = true;
> + rs_state.depth_clip = 1;
> + filter->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
> + if (!filter->rs_state)
> + goto error_rs_state;
> +
> + memset(&blend, 0, sizeof blend);
> + blend.rt[0].colormask = PIPE_MASK_RGBA;
> + filter->blend = pipe->create_blend_state(pipe, &blend);
> + if (!filter->blend)
> + goto error_blend;
> +
> + memset(&sampler, 0, sizeof(sampler));
> + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
> + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
> + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
> + sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
> + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
> + sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
> + sampler.normalized_coords = 1;
> + filter->sampler[0] = pipe->create_sampler_state(pipe, &sampler);
> + filter->sampler[1] = filter->sampler[2] = filter->sampler[3] = filter->sampler[0];
> + if (!filter->sampler[0])
> + goto error_sampler;
> +
> + filter->quad = vl_vb_upload_quads(pipe);
> + if(!filter->quad.buffer)
> + goto error_quad;
> +
> + memset(&ve, 0, sizeof(ve));
> + ve.src_offset = 0;
> + ve.instance_divisor = 0;
> + ve.vertex_buffer_index = 0;
> + ve.src_format = PIPE_FORMAT_R32G32_FLOAT;
> + filter->ves = pipe->create_vertex_elements_state(pipe, 1, &ve);
> + if (!filter->ves)
> + goto error_ves;
> +
> + sizes.x = 1.0f / video_width;
> + sizes.y = 1.0f / video_height;
> +
> + filter->vs = create_vert_shader(filter);
> + if (!filter->vs)
> + goto error_vs;
> +
> + filter->fs_copy_top = create_copy_frag_shader(filter, 0);
> + if (!filter->fs_copy_top)
> + goto error_fs_copy_top;
> +
> + filter->fs_copy_bottom = create_copy_frag_shader(filter, 1);
> + if (!filter->fs_copy_bottom)
> + goto error_fs_copy_bottom;
> +
> + filter->fs_deint_top = create_deint_frag_shader(filter, 0, &sizes, spatial_filter);
> + if (!filter->fs_deint_top)
> + goto error_fs_deint_top;
> +
> + filter->fs_deint_bottom = create_deint_frag_shader(filter, 1, &sizes, spatial_filter);
> + if (!filter->fs_deint_bottom)
> + goto error_fs_deint_bottom;
> +
> + return true;
> +
> +error_fs_deint_bottom:
> + pipe->delete_fs_state(pipe, filter->fs_deint_top);
> +
> +error_fs_deint_top:
> + pipe->delete_fs_state(pipe, filter->fs_copy_bottom);
> +
> +error_fs_copy_bottom:
> + pipe->delete_fs_state(pipe, filter->fs_copy_top);
> +
> +error_fs_copy_top:
> + pipe->delete_vs_state(pipe, filter->vs);
> +
> +error_vs:
> + pipe->delete_vertex_elements_state(pipe, filter->ves);
> +
> +error_ves:
> + pipe_resource_reference(&filter->quad.buffer, NULL);
> +
> +error_quad:
> + pipe->delete_sampler_state(pipe, filter->sampler);
> +
> +error_sampler:
> + pipe->delete_blend_state(pipe, filter->blend);
> +
> +error_blend:
> + pipe->delete_rasterizer_state(pipe, filter->rs_state);
> +
> +error_rs_state:
> + filter->video_buffer->destroy(filter->video_buffer);
> +
> +error_video_buffer:
> + return false;
> +}
> +
> +void
> +vl_deint_filter_cleanup(struct vl_deint_filter *filter)
> +{
> + assert(filter);
> +
> + filter->pipe->delete_sampler_state(filter->pipe, filter->sampler[0]);
> + filter->pipe->delete_blend_state(filter->pipe, filter->blend);
> + filter->pipe->delete_rasterizer_state(filter->pipe, filter->rs_state);
> + filter->pipe->delete_vertex_elements_state(filter->pipe, filter->ves);
> + pipe_resource_reference(&filter->quad.buffer, NULL);
> +
> + filter->pipe->delete_vs_state(filter->pipe, filter->vs);
> + filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_top);
> + filter->pipe->delete_fs_state(filter->pipe, filter->fs_copy_bottom);
> + filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_top);
> + filter->pipe->delete_fs_state(filter->pipe, filter->fs_deint_bottom);
> +
> + filter->video_buffer->destroy(filter->video_buffer);
> +}
> +
> +bool
> +vl_deint_filter_check_buffers(struct vl_deint_filter *filter,
> + struct pipe_video_buffer *prevprev,
> + struct pipe_video_buffer *prev,
> + struct pipe_video_buffer *cur,
> + struct pipe_video_buffer *next)
> +{
> + int i;
> + struct pipe_video_buffer *bufs[] = { prevprev, prev, cur, next };
> +
> + for (i = 0; i < 4; i++) {
> + if (bufs[i]->chroma_format != PIPE_VIDEO_CHROMA_FORMAT_420)
> + return false;
> + if (bufs[i]->width < filter->video_width ||
> + bufs[i]->height < filter->video_height)
> + return false;
> + if (!bufs[i]->interlaced)
> + return false;
> + }
> +
> + return true;
> +}
> +
> +void
> +vl_deint_filter_render(struct vl_deint_filter *filter,
> + struct pipe_video_buffer *prevprev,
> + struct pipe_video_buffer *prev,
> + struct pipe_video_buffer *cur,
> + struct pipe_video_buffer *next,
> + unsigned field)
> +{
> + struct pipe_viewport_state viewport;
> + struct pipe_framebuffer_state fb_state;
> + struct pipe_sampler_view **cur_sv;
> + struct pipe_sampler_view **prevprev_sv;
> + struct pipe_sampler_view **prev_sv;
> + struct pipe_sampler_view **next_sv;
> + struct pipe_sampler_view *sampler_views[4];
> + struct pipe_surface **dst_surfaces;
> + int j;
> +
> + assert(filter && prevprev && prev && cur && next && field <= 1);
> +
> + /* set up destination and source */
> + dst_surfaces = filter->video_buffer->get_surfaces(filter->video_buffer);
> + cur_sv = cur->get_sampler_view_components(cur);
> + prevprev_sv = prevprev->get_sampler_view_components(prevprev);
> + prev_sv = prev->get_sampler_view_components(prev);
> + next_sv = next->get_sampler_view_components(next);
> +
> + /* set up pipe state */
> + filter->pipe->bind_rasterizer_state(filter->pipe, filter->rs_state);
> + filter->pipe->bind_blend_state(filter->pipe, filter->blend);
> + filter->pipe->set_vertex_buffers(filter->pipe, 0, 1, &filter->quad);
> + filter->pipe->bind_vertex_elements_state(filter->pipe, filter->ves);
> + filter->pipe->bind_vs_state(filter->pipe, filter->vs);
> + filter->pipe->bind_sampler_states(filter->pipe, PIPE_SHADER_FRAGMENT,
> + 0, 4, filter->sampler);
> +
> + /* prepare viewport */
> + memset(&viewport, 0, sizeof(viewport));
> + viewport.scale[2] = 1;
> + viewport.scale[3] = 1;
> +
> + /* prepare framebuffer */
> + memset(&fb_state, 0, sizeof(fb_state));
> + fb_state.nr_cbufs = 1;
> +
> + /* process each plane separately */
> + for (j = 0; j < 3; j++) {
> + /* select correct YV12 surfaces */
> + int k = j == 1 ? 2 :
> + j == 2 ? 1 : 0;
> + struct pipe_surface *blit_surf = dst_surfaces[2 * k + field];
> + struct pipe_surface *dst_surf = dst_surfaces[2 * k + 1 - field];
> +
> + /* update render target state */
> + viewport.scale[0] = blit_surf->texture->width0;
> + viewport.scale[1] = blit_surf->texture->height0;
> + fb_state.width = blit_surf->texture->width0;
> + fb_state.height = blit_surf->texture->height0;
> +
> + /* update sampler view sources */
> + sampler_views[0] = prevprev_sv[j];
> + sampler_views[1] = prev_sv[j];
> + sampler_views[2] = cur_sv[j];
> + sampler_views[3] = next_sv[j];
> + filter->pipe->set_sampler_views(filter->pipe, PIPE_SHADER_FRAGMENT, 0, 4, sampler_views);
> +
> + /* blit current field */
> + fb_state.cbufs[0] = blit_surf;
> + filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_copy_bottom : filter->fs_copy_top);
> + filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
> + filter->pipe->set_viewport_states(filter->pipe, 0, 1, &viewport);
> + util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
> +
> + /* blit or interpolate other field */
> + fb_state.cbufs[0] = dst_surf;
> + filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
> + if (j > 0 && filter->skip_chroma) {
> + util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
> + } else {
> + filter->pipe->bind_fs_state(filter->pipe, field ? filter->fs_deint_top : filter->fs_deint_bottom);
> + util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
> + }
> + }
> +}
> +
> diff --git a/src/gallium/auxiliary/vl/vl_deint_filter.h b/src/gallium/auxiliary/vl/vl_deint_filter.h
> new file mode 100644
> index 0000000..5a21402
> --- /dev/null
> +++ b/src/gallium/auxiliary/vl/vl_deint_filter.h
> @@ -0,0 +1,78 @@
> +/**************************************************************************
> + *
> + * Copyright 2013 Grigori Goronzy <greg at chown.ath.cx>
> + * 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.
> + *
> + **************************************************************************/
> +
> +/* motion adaptive deinterlacer implementation */
> +
> +#ifndef vl_deint_filter_h
> +#define vl_deint_filter_h
> +
> +#include "pipe/p_state.h"
> +
> +struct vl_deint_filter
> +{
> + struct pipe_context *pipe;
> + struct pipe_vertex_buffer quad;
> +
> + void *rs_state;
> + void *blend;
> + void *sampler[4];
> + void *ves;
> + void *vs;
> + void *fs_copy_top, *fs_copy_bottom;
> + void *fs_deint_top, *fs_deint_bottom;
> +
> + unsigned video_width, video_height;
> + bool skip_chroma;
> +
> + struct pipe_video_buffer *video_buffer;
> +};
> +
> +bool
> +vl_deint_filter_init(struct vl_deint_filter *filter, struct pipe_context *pipe,
> + unsigned video_width, unsigned video_height,
> + bool skip_chroma, bool spatial_filter);
> +
> +void
> +vl_deint_filter_cleanup(struct vl_deint_filter *filter);
> +
> +bool
> +vl_deint_filter_check_buffers(struct vl_deint_filter *filter,
> + struct pipe_video_buffer *prevprev,
> + struct pipe_video_buffer *prev,
> + struct pipe_video_buffer *cur,
> + struct pipe_video_buffer *next);
> +
> +void
> +vl_deint_filter_render(struct vl_deint_filter *filter,
> + struct pipe_video_buffer *prevprev,
> + struct pipe_video_buffer *prev,
> + struct pipe_video_buffer *cur,
> + struct pipe_video_buffer *next,
> + unsigned field);
> +
> +#endif /* vl_deint_filter_h */
> +
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