/*****************************************************************************
* d3d_shaders.h: Direct3D Shaders
*****************************************************************************
* Copyright (C) 2017-2021 VLC authors and VideoLAN
*
* Authors: Steve Lhomme <robux4@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_D3D_SHADERS_H
#define VLC_D3D_SHADERS_H
#include "../../video_chroma/dxgi_fmt.h"
#include <vlc_es.h>
#ifdef __cplusplus
extern "C" {
#endif// __cplusplus
#define DEFAULT_BRIGHTNESS 100
#define DEFAULT_SRGB_BRIGHTNESS 100
#define MAX_HLG_BRIGHTNESS 1000
#define MAX_PQ_BRIGHTNESS 10000
typedef struct {
video_color_primaries_t primaries;
video_transfer_func_t transfer;
video_color_space_t color;
bool b_full_range;
unsigned luminance_peak;
const d3d_format_t *pixelFormat;
video_orientation_t orientation;
} display_info_t;
/* structures passed to the pixel shader */
typedef struct {
FLOAT Colorspace[4*3];
FLOAT Opacity;
FLOAT LuminanceScale;
FLOAT BoundaryX;
FLOAT BoundaryY;
FLOAT padding[48]; // 256 bytes alignment
} PS_CONSTANT_BUFFER;
typedef struct {
FLOAT View[4*4];
FLOAT Zoom[4*4];
FLOAT Projection[4*4];
FLOAT padding[16]; // 256 bytes alignment
} VS_PROJECTION_CONST;
typedef struct {
struct {
FLOAT x;
FLOAT y;
FLOAT z;
} position;
struct {
FLOAT uv[2];
} texture;
} d3d_vertex_t;
/* A Quad is texture that can be displayed in a rectangle */
typedef struct
{
const d3d_format_t *textureFormat;
UINT vertexCount;
UINT vertexStride;
UINT indexCount;
video_projection_mode_t projection;
unsigned int i_width;
unsigned int i_height;
PS_CONSTANT_BUFFER *shaderConstants;
VS_PROJECTION_CONST *vertexConstants;
} d3d_quad_t;
typedef struct d3d_shader_blob
{
void *opaque;
void (*pf_release)(struct d3d_shader_blob *);
SIZE_T buf_size;
void *buffer;
} d3d_shader_blob;
static inline void D3D_ShaderBlobRelease(d3d_shader_blob *blob)
{
if (blob->pf_release)
blob->pf_release(blob);
#ifdef __cplusplus
*blob = { };
#else
*blob = (d3d_shader_blob) { .pf_release = NULL };
#endif
}
float D3D_GetFormatLuminance(vlc_object_t *, const video_format_t *);
#define D3D_GetFormatLuminance(a,b) D3D_GetFormatLuminance(VLC_OBJECT(a),b)
bool D3D_UpdateQuadOpacity(d3d_quad_t *, float opacity);
bool D3D_UpdateQuadLuminanceScale(d3d_quad_t *, float luminanceScale);
void D3D_SetupQuad(vlc_object_t *, const video_format_t *, d3d_quad_t *,
const display_info_t *);
bool D3D_QuadSetupBuffers(vlc_object_t *, d3d_quad_t *, video_projection_mode_t);
bool D3D_SetupQuadData(vlc_object_t *, d3d_quad_t *, const RECT *, d3d_vertex_t*, void *, video_transform_t);
void D3D_UpdateViewpoint(d3d_quad_t *, const vlc_viewpoint_t *, float f_sar);
#ifdef __cplusplus
}
#endif// __cplusplus
#endif /* VLC_D3D_SHADERS_H */
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