mirror of
https://github.com/gnif/LookingGlass.git
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79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2023 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#pragma once
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#include "egltypes.h"
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//typedef struct EGL_TexSetup EGL_TexSetup;
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typedef struct EGL_TexFormat
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{
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EGL_PixelFormat pixFmt;
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size_t bpp;
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GLenum format;
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GLenum intFormat;
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GLenum dataType;
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unsigned int fourcc;
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size_t dataSize;
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size_t width , height;
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size_t stride, pitch;
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// for 24-bit BGR these are the physical adjusted values to get mapping working
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size_t bufferSize;
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size_t bufferPitch;
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}
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EGL_TexFormat;
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typedef struct EGL_TexBuffer
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{
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size_t size;
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GLuint pbo;
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void * map;
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bool updated;
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}
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EGL_TexBuffer;
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bool egl_texUtilGetFormat(const EGL_TexSetup * setup, EGL_TexFormat * fmt);
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bool egl_texUtilGenBuffers(const EGL_TexFormat * fmt, EGL_TexBuffer * buffers,
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int count);
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void egl_texUtilFreeBuffers(EGL_TexBuffer * buffers, int count);
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bool egl_texUtilMapBuffer(EGL_TexBuffer * buffer);
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void egl_texUtilUnmapBuffer(EGL_TexBuffer * buffer);
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/**
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* the following comes from drm_fourcc.h and is included here to avoid the
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* external dependency for the few simple defines we need
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*/
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#define fourcc_code(a, b, c, d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \
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((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
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#define DRM_FORMAT_ARGB8888 fourcc_code('A', 'R', '2', '4')
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#define DRM_FORMAT_ABGR8888 fourcc_code('A', 'B', '2', '4')
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#define DRM_FORMAT_ABGR2101010 fourcc_code('A', 'B', '3', '0')
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#define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H')
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#define DRM_FORMAT_MOD_VENDOR_NONE 0
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#define fourcc_mod_code(vendor, val) \
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((((uint64_t)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | \
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((val) & 0x00ffffffffffffffULL))
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#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0)
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