RetroArch/gfx/drivers_shader/glslang_util.h

115 lines
2.8 KiB
C++

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2017 - Hans-Kristian Arntzen
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GLSLANG_UTIL_HPP
#define GLSLANG_UTIL_HPP
#include <stdint.h>
#include <retro_common_api.h>
typedef enum glslang_format
{
SLANG_FORMAT_UNKNOWN = 0,
// 8-bit
SLANG_FORMAT_R8_UNORM,
SLANG_FORMAT_R8_UINT,
SLANG_FORMAT_R8_SINT,
SLANG_FORMAT_R8G8_UNORM,
SLANG_FORMAT_R8G8_UINT,
SLANG_FORMAT_R8G8_SINT,
SLANG_FORMAT_R8G8B8A8_UNORM,
SLANG_FORMAT_R8G8B8A8_UINT,
SLANG_FORMAT_R8G8B8A8_SINT,
SLANG_FORMAT_R8G8B8A8_SRGB,
// 10-bit
SLANG_FORMAT_A2B10G10R10_UNORM_PACK32,
SLANG_FORMAT_A2B10G10R10_UINT_PACK32,
// 16-bit
SLANG_FORMAT_R16_UINT,
SLANG_FORMAT_R16_SINT,
SLANG_FORMAT_R16_SFLOAT,
SLANG_FORMAT_R16G16_UINT,
SLANG_FORMAT_R16G16_SINT,
SLANG_FORMAT_R16G16_SFLOAT,
SLANG_FORMAT_R16G16B16A16_UINT,
SLANG_FORMAT_R16G16B16A16_SINT,
SLANG_FORMAT_R16G16B16A16_SFLOAT,
// 32-bit
SLANG_FORMAT_R32_UINT,
SLANG_FORMAT_R32_SINT,
SLANG_FORMAT_R32_SFLOAT,
SLANG_FORMAT_R32G32_UINT,
SLANG_FORMAT_R32G32_SINT,
SLANG_FORMAT_R32G32_SFLOAT,
SLANG_FORMAT_R32G32B32A32_UINT,
SLANG_FORMAT_R32G32B32A32_SINT,
SLANG_FORMAT_R32G32B32A32_SFLOAT,
SLANG_FORMAT_MAX
}glslang_format;
RETRO_BEGIN_DECLS
const char *glslang_format_to_string(glslang_format fmt);
RETRO_END_DECLS
#ifdef __cplusplus
#include <vector>
#include <string>
struct glslang_parameter
{
std::string id;
std::string desc;
float initial;
float minimum;
float maximum;
float step;
};
struct glslang_meta
{
std::vector<glslang_parameter> parameters;
std::string name;
glslang_format rt_format;
glslang_meta()
{
rt_format = SLANG_FORMAT_UNKNOWN;
}
};
struct glslang_output
{
std::vector<uint32_t> vertex;
std::vector<uint32_t> fragment;
glslang_meta meta;
};
bool glslang_compile_shader(const char *shader_path, glslang_output *output);
// Helpers for internal use.
bool glslang_read_shader_file(const char *path, std::vector<std::string> *output, bool root_file);
bool glslang_parse_meta(const std::vector<std::string> &lines, glslang_meta *meta);
#endif
#endif