vl: add a bicubic interpolation filter(v5)
This is a shader based bicubic interpolater which uses cubic Hermite spline algorithm. v2: set dst_area and dst_clip during scaling (Christian) v3: clear the render target before rendering v4: intialize offsets while initializing shaders use a constant buffer to send dst_size to frag shader small changes to reduce calculation in shader v5: send half pixel offset instead of sending dst_size Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
parent
3fea592c4e
commit
872dd9ad15
|
@ -317,6 +317,8 @@ NIR_SOURCES := \
|
|||
nir/tgsi_to_nir.h
|
||||
|
||||
VL_SOURCES := \
|
||||
vl/vl_bicubic_filter.c \
|
||||
vl/vl_bicubic_filter.h \
|
||||
vl/vl_compositor.c \
|
||||
vl/vl_compositor.h \
|
||||
vl/vl_csc.c \
|
||||
|
|
|
@ -0,0 +1,463 @@
|
|||
/**************************************************************************
|
||||
*
|
||||
* Copyright 2016 Nayan Deshmukh.
|
||||
* 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 VMWARE 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.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
#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 "util/u_rect.h"
|
||||
|
||||
#include "vl_types.h"
|
||||
#include "vl_vertex_buffers.h"
|
||||
#include "vl_bicubic_filter.h"
|
||||
|
||||
enum VS_OUTPUT
|
||||
{
|
||||
VS_O_VPOS = 0,
|
||||
VS_O_VTEX = 0
|
||||
};
|
||||
|
||||
static void *
|
||||
create_vert_shader(struct vl_bicubic_filter *filter)
|
||||
{
|
||||
struct ureg_program *shader;
|
||||
struct ureg_src i_vpos;
|
||||
struct ureg_dst o_vpos, o_vtex;
|
||||
|
||||
shader = ureg_create(PIPE_SHADER_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_frag_shader_cubic_interpolater(struct ureg_program *shader, struct ureg_src tex_a,
|
||||
struct ureg_src tex_b, struct ureg_src tex_c,
|
||||
struct ureg_src tex_d, struct ureg_src t,
|
||||
struct ureg_dst o_fragment)
|
||||
{
|
||||
struct ureg_dst temp[11];
|
||||
struct ureg_dst t_2;
|
||||
unsigned i;
|
||||
|
||||
for(i = 0; i < 11; ++i)
|
||||
temp[i] = ureg_DECL_temporary(shader);
|
||||
t_2 = ureg_DECL_temporary(shader);
|
||||
|
||||
/*
|
||||
* |temp[0]| | 0 2 0 0 | |tex_a|
|
||||
* |temp[1]| = | -1 0 1 0 |* |tex_b|
|
||||
* |temp[2]| | 2 -5 4 -1 | |tex_c|
|
||||
* |temp[3]| | -1 3 -3 1 | |tex_d|
|
||||
*/
|
||||
ureg_MUL(shader, temp[0], tex_b, ureg_imm1f(shader, 2.0f));
|
||||
|
||||
ureg_MUL(shader, temp[1], tex_a, ureg_imm1f(shader, -1.0f));
|
||||
ureg_MAD(shader, temp[1], tex_c, ureg_imm1f(shader, 1.0f),
|
||||
ureg_src(temp[1]));
|
||||
|
||||
ureg_MUL(shader, temp[2], tex_a, ureg_imm1f(shader, 2.0f));
|
||||
ureg_MAD(shader, temp[2], tex_b, ureg_imm1f(shader, -5.0f),
|
||||
ureg_src(temp[2]));
|
||||
ureg_MAD(shader, temp[2], tex_c, ureg_imm1f(shader, 4.0f),
|
||||
ureg_src(temp[2]));
|
||||
ureg_MAD(shader, temp[2], tex_d, ureg_imm1f(shader, -1.0f),
|
||||
ureg_src(temp[2]));
|
||||
|
||||
ureg_MUL(shader, temp[3], tex_a, ureg_imm1f(shader, -1.0f));
|
||||
ureg_MAD(shader, temp[3], tex_b, ureg_imm1f(shader, 3.0f),
|
||||
ureg_src(temp[3]));
|
||||
ureg_MAD(shader, temp[3], tex_c, ureg_imm1f(shader, -3.0f),
|
||||
ureg_src(temp[3]));
|
||||
ureg_MAD(shader, temp[3], tex_d, ureg_imm1f(shader, 1.0f),
|
||||
ureg_src(temp[3]));
|
||||
|
||||
/*
|
||||
* t_2 = t*t
|
||||
* o_fragment = 0.5*|1 t t^2 t^3|*|temp[0]|
|
||||
* |temp[1]|
|
||||
* |temp[2]|
|
||||
* |temp[3]|
|
||||
*/
|
||||
|
||||
ureg_MUL(shader, t_2, t, t);
|
||||
ureg_MUL(shader, temp[4], ureg_src(t_2), t);
|
||||
|
||||
ureg_MUL(shader, temp[4], ureg_src(temp[4]),
|
||||
ureg_src(temp[3]));
|
||||
ureg_MUL(shader, temp[5], ureg_src(t_2),
|
||||
ureg_src(temp[2]));
|
||||
ureg_MUL(shader, temp[6], t,
|
||||
ureg_src(temp[1]));
|
||||
ureg_MUL(shader, temp[7], ureg_imm1f(shader, 1.0f),
|
||||
ureg_src(temp[0]));
|
||||
ureg_ADD(shader, temp[8], ureg_src(temp[4]),
|
||||
ureg_src(temp[5]));
|
||||
ureg_ADD(shader, temp[9], ureg_src(temp[6]),
|
||||
ureg_src(temp[7]));
|
||||
|
||||
ureg_ADD(shader, temp[10], ureg_src(temp[8]),
|
||||
ureg_src(temp[9]));
|
||||
ureg_MUL(shader, o_fragment, ureg_src(temp[10]),
|
||||
ureg_imm1f(shader, 0.5f));
|
||||
|
||||
|
||||
for(i = 0; i < 11; ++i)
|
||||
ureg_release_temporary(shader, temp[i]);
|
||||
ureg_release_temporary(shader, t_2);
|
||||
}
|
||||
|
||||
static void *
|
||||
create_frag_shader(struct vl_bicubic_filter *filter, unsigned video_width,
|
||||
unsigned video_height, struct vertex2f *offsets)
|
||||
{
|
||||
struct pipe_screen *screen = filter->pipe->screen;
|
||||
struct ureg_program *shader;
|
||||
struct ureg_src i_vtex, vtex;
|
||||
struct ureg_src sampler;
|
||||
struct ureg_src half_pixel;
|
||||
struct ureg_dst t_array[23];
|
||||
struct ureg_dst o_fragment;
|
||||
struct ureg_dst t;
|
||||
unsigned i;
|
||||
|
||||
if (screen->get_shader_param(
|
||||
screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_TEMPS) < 23) {
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
shader = ureg_create(PIPE_SHADER_FRAGMENT);
|
||||
if (!shader) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
i_vtex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
|
||||
sampler = ureg_DECL_sampler(shader, 0);
|
||||
|
||||
for (i = 0; i < 23; ++i)
|
||||
t_array[i] = ureg_DECL_temporary(shader);
|
||||
t = ureg_DECL_temporary(shader);
|
||||
|
||||
half_pixel = ureg_DECL_constant(shader, 0);
|
||||
o_fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
|
||||
|
||||
/*
|
||||
* temp = (i_vtex - (0.5/dst_size)) * i_size)
|
||||
* t = frac(temp)
|
||||
* vtex = floor(i_vtex)/i_size
|
||||
*/
|
||||
ureg_SUB(shader, ureg_writemask(t_array[21], TGSI_WRITEMASK_XY),
|
||||
i_vtex, half_pixel);
|
||||
ureg_MUL(shader, ureg_writemask(t_array[22], TGSI_WRITEMASK_XY),
|
||||
ureg_src(t_array[21]), ureg_imm2f(shader, video_width, video_height));
|
||||
ureg_FRC(shader, ureg_writemask(t, TGSI_WRITEMASK_XY),
|
||||
ureg_src(t_array[22]));
|
||||
|
||||
ureg_FLR(shader, ureg_writemask(t_array[22], TGSI_WRITEMASK_XY),
|
||||
ureg_src(t_array[22]));
|
||||
ureg_DIV(shader, ureg_writemask(t_array[22], TGSI_WRITEMASK_XY),
|
||||
ureg_src(t_array[22]), ureg_imm2f(shader, video_width, video_height));
|
||||
|
||||
/*
|
||||
* t_array[0..*] = vtex + offset[0..*]
|
||||
* t_array[0..*] = tex(t_array[0..*], sampler)
|
||||
* t_array[16+i] = cubic_interpolate(t_array[4*i..4*i+3], t_x)
|
||||
* o_fragment = cubic_interpolate(t_array[16..19], t_y)
|
||||
*/
|
||||
vtex = ureg_src(t_array[22]);
|
||||
for (i = 0; i < 16; ++i) {
|
||||
ureg_ADD(shader, ureg_writemask(t_array[i], TGSI_WRITEMASK_XY),
|
||||
vtex, ureg_imm2f(shader, offsets[i].x, offsets[i].y));
|
||||
ureg_MOV(shader, ureg_writemask(t_array[i], TGSI_WRITEMASK_ZW),
|
||||
ureg_imm1f(shader, 0.0f));
|
||||
}
|
||||
|
||||
for (i = 0; i < 16; ++i) {
|
||||
ureg_TEX(shader, t_array[i], TGSI_TEXTURE_2D, ureg_src(t_array[i]), sampler);
|
||||
}
|
||||
|
||||
for(i = 0; i < 4; ++i)
|
||||
create_frag_shader_cubic_interpolater(shader, ureg_src(t_array[4*i]),
|
||||
ureg_src(t_array[4*i+1]), ureg_src(t_array[4*i+2]), ureg_src(t_array[4*i+3]),
|
||||
ureg_scalar(ureg_src(t), TGSI_SWIZZLE_X), t_array[16+i]);
|
||||
|
||||
create_frag_shader_cubic_interpolater(shader, ureg_src(t_array[16]),
|
||||
ureg_src(t_array[17]), ureg_src(t_array[18]), ureg_src(t_array[19]),
|
||||
ureg_scalar(ureg_src(t), TGSI_SWIZZLE_Y), o_fragment);
|
||||
|
||||
for(i = 0; i < 23; ++i)
|
||||
ureg_release_temporary(shader, t_array[i]);
|
||||
ureg_release_temporary(shader, t);
|
||||
|
||||
ureg_END(shader);
|
||||
|
||||
return ureg_create_shader_and_destroy(shader, filter->pipe);
|
||||
}
|
||||
|
||||
bool
|
||||
vl_bicubic_filter_init(struct vl_bicubic_filter *filter, struct pipe_context *pipe,
|
||||
unsigned width, unsigned height)
|
||||
{
|
||||
struct pipe_rasterizer_state rs_state;
|
||||
struct pipe_blend_state blend;
|
||||
struct vertex2f *offsets = NULL;
|
||||
struct pipe_sampler_state sampler;
|
||||
struct pipe_vertex_element ve;
|
||||
unsigned i;
|
||||
|
||||
assert(filter && pipe);
|
||||
assert(width && height);
|
||||
|
||||
memset(filter, 0, sizeof(*filter));
|
||||
filter->pipe = pipe;
|
||||
|
||||
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].rgb_func = PIPE_BLEND_ADD;
|
||||
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
|
||||
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
|
||||
blend.rt[0].alpha_func = PIPE_BLEND_ADD;
|
||||
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
|
||||
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
|
||||
blend.logicop_func = PIPE_LOGICOP_CLEAR;
|
||||
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_NEAREST;
|
||||
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
|
||||
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
|
||||
sampler.compare_mode = PIPE_TEX_COMPARE_NONE;
|
||||
sampler.compare_func = PIPE_FUNC_ALWAYS;
|
||||
sampler.normalized_coords = 1;
|
||||
filter->sampler = pipe->create_sampler_state(pipe, &sampler);
|
||||
if (!filter->sampler)
|
||||
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;
|
||||
|
||||
offsets = MALLOC(sizeof(struct vertex2f) * 16);
|
||||
if (!offsets)
|
||||
goto error_offsets;
|
||||
|
||||
offsets[0].x = -1.0f; offsets[0].y = -1.0f;
|
||||
offsets[1].x = 0.0f; offsets[1].y = -1.0f;
|
||||
offsets[2].x = 1.0f; offsets[2].y = -1.0f;
|
||||
offsets[3].x = 2.0f; offsets[3].y = -1.0f;
|
||||
|
||||
offsets[4].x = -1.0f; offsets[4].y = 0.0f;
|
||||
offsets[5].x = 0.0f; offsets[5].y = 0.0f;
|
||||
offsets[6].x = 1.0f; offsets[6].y = 0.0f;
|
||||
offsets[7].x = 2.0f; offsets[7].y = 0.0f;
|
||||
|
||||
offsets[8].x = -1.0f; offsets[8].y = 1.0f;
|
||||
offsets[9].x = 0.0f; offsets[9].y = 1.0f;
|
||||
offsets[10].x = 1.0f; offsets[10].y = 1.0f;
|
||||
offsets[11].x = 2.0f; offsets[11].y = 1.0f;
|
||||
|
||||
offsets[12].x = -1.0f; offsets[12].y = 2.0f;
|
||||
offsets[13].x = 0.0f; offsets[13].y = 2.0f;
|
||||
offsets[14].x = 1.0f; offsets[14].y = 2.0f;
|
||||
offsets[15].x = 2.0f; offsets[15].y = 2.0f;
|
||||
|
||||
for (i = 0; i < 16; ++i) {
|
||||
offsets[i].x /= width;
|
||||
offsets[i].y /= height;
|
||||
}
|
||||
|
||||
filter->vs = create_vert_shader(filter);
|
||||
if (!filter->vs)
|
||||
goto error_vs;
|
||||
|
||||
filter->fs = create_frag_shader(filter, width, height, offsets);
|
||||
if (!filter->fs)
|
||||
goto error_fs;
|
||||
|
||||
return true;
|
||||
|
||||
error_fs:
|
||||
pipe->delete_vs_state(pipe, filter->vs);
|
||||
|
||||
error_vs:
|
||||
|
||||
error_offsets:
|
||||
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:
|
||||
return false;
|
||||
}
|
||||
|
||||
void
|
||||
vl_bicubic_filter_cleanup(struct vl_bicubic_filter *filter)
|
||||
{
|
||||
assert(filter);
|
||||
|
||||
filter->pipe->delete_sampler_state(filter->pipe, filter->sampler);
|
||||
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);
|
||||
}
|
||||
|
||||
void
|
||||
vl_bicubic_filter_render(struct vl_bicubic_filter *filter,
|
||||
struct pipe_sampler_view *src,
|
||||
struct pipe_surface *dst,
|
||||
struct u_rect *dst_area,
|
||||
struct u_rect *dst_clip)
|
||||
{
|
||||
struct pipe_viewport_state viewport;
|
||||
struct pipe_framebuffer_state fb_state;
|
||||
struct pipe_scissor_state scissor;
|
||||
union pipe_color_union clear_color;
|
||||
struct pipe_transfer *buf_transfer;
|
||||
struct pipe_resource *surface_size;
|
||||
assert(filter && src && dst);
|
||||
|
||||
if (dst_clip) {
|
||||
scissor.minx = dst_clip->x0;
|
||||
scissor.miny = dst_clip->y0;
|
||||
scissor.maxx = dst_clip->x1;
|
||||
scissor.maxy = dst_clip->y1;
|
||||
} else {
|
||||
scissor.minx = 0;
|
||||
scissor.miny = 0;
|
||||
scissor.maxx = dst->width;
|
||||
scissor.maxy = dst->height;
|
||||
}
|
||||
|
||||
clear_color.f[0] = clear_color.f[1] = 0.0f;
|
||||
clear_color.f[2] = clear_color.f[3] = 0.0f;
|
||||
surface_size = pipe_buffer_create
|
||||
(
|
||||
filter->pipe->screen,
|
||||
PIPE_BIND_CONSTANT_BUFFER,
|
||||
PIPE_USAGE_DEFAULT,
|
||||
2*sizeof(float)
|
||||
);
|
||||
|
||||
|
||||
memset(&viewport, 0, sizeof(viewport));
|
||||
if(dst_area){
|
||||
viewport.scale[0] = dst_area->x1 - dst_area->x0;
|
||||
viewport.scale[1] = dst_area->y1 - dst_area->y0;
|
||||
viewport.translate[0] = dst_area->x0;
|
||||
viewport.translate[1] = dst_area->y0;
|
||||
} else {
|
||||
viewport.scale[0] = dst->width;
|
||||
viewport.scale[1] = dst->height;
|
||||
}
|
||||
viewport.scale[2] = 1;
|
||||
|
||||
float *ptr = pipe_buffer_map(filter->pipe, surface_size,
|
||||
PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE,
|
||||
&buf_transfer);
|
||||
|
||||
ptr[0] = 0.5f/viewport.scale[0];
|
||||
ptr[1] = 0.5f/viewport.scale[1];
|
||||
|
||||
pipe_buffer_unmap(filter->pipe, buf_transfer);
|
||||
|
||||
memset(&fb_state, 0, sizeof(fb_state));
|
||||
fb_state.width = dst->width;
|
||||
fb_state.height = dst->height;
|
||||
fb_state.nr_cbufs = 1;
|
||||
fb_state.cbufs[0] = dst;
|
||||
|
||||
filter->pipe->set_scissor_states(filter->pipe, 0, 1, &scissor);
|
||||
filter->pipe->clear_render_target(filter->pipe, dst, &clear_color,
|
||||
0, 0, dst->width, dst->height);
|
||||
pipe_set_constant_buffer(filter->pipe, PIPE_SHADER_FRAGMENT, 0, surface_size);
|
||||
filter->pipe->bind_rasterizer_state(filter->pipe, filter->rs_state);
|
||||
filter->pipe->bind_blend_state(filter->pipe, filter->blend);
|
||||
filter->pipe->bind_sampler_states(filter->pipe, PIPE_SHADER_FRAGMENT,
|
||||
0, 1, &filter->sampler);
|
||||
filter->pipe->set_sampler_views(filter->pipe, PIPE_SHADER_FRAGMENT,
|
||||
0, 1, &src);
|
||||
filter->pipe->bind_vs_state(filter->pipe, filter->vs);
|
||||
filter->pipe->bind_fs_state(filter->pipe, filter->fs);
|
||||
filter->pipe->set_framebuffer_state(filter->pipe, &fb_state);
|
||||
filter->pipe->set_viewport_states(filter->pipe, 0, 1, &viewport);
|
||||
filter->pipe->set_vertex_buffers(filter->pipe, 0, 1, &filter->quad);
|
||||
filter->pipe->bind_vertex_elements_state(filter->pipe, filter->ves);
|
||||
|
||||
util_draw_arrays(filter->pipe, PIPE_PRIM_QUADS, 0, 4);
|
||||
}
|
|
@ -0,0 +1,63 @@
|
|||
/**************************************************************************
|
||||
*
|
||||
* Copyright 2016 Nayan Deshmukh.
|
||||
* 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 VMWARE 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.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
/* implementation of bicubic interpolation filters */
|
||||
|
||||
#ifndef vl_bicubic_filter_h
|
||||
#define vl_bicubic_filter_h
|
||||
|
||||
#include "pipe/p_state.h"
|
||||
|
||||
struct vl_bicubic_filter
|
||||
{
|
||||
struct pipe_context *pipe;
|
||||
struct pipe_vertex_buffer quad;
|
||||
|
||||
void *rs_state;
|
||||
void *blend;
|
||||
void *sampler;
|
||||
void *ves;
|
||||
void *vs, *fs;
|
||||
};
|
||||
|
||||
bool
|
||||
vl_bicubic_filter_init(struct vl_bicubic_filter *filter, struct pipe_context *pipe,
|
||||
unsigned width, unsigned height);
|
||||
|
||||
void
|
||||
vl_bicubic_filter_cleanup(struct vl_bicubic_filter *filter);
|
||||
|
||||
|
||||
void
|
||||
vl_bicubic_filter_render(struct vl_bicubic_filter *filter,
|
||||
struct pipe_sampler_view *src,
|
||||
struct pipe_surface *dst,
|
||||
struct u_rect *dst_area,
|
||||
struct u_rect *dst_clip);
|
||||
|
||||
|
||||
#endif /* vl_bicubic_filter_h */
|
Loading…
Reference in New Issue