initHEADmaster

1 files changed, 321 insertions, 0 deletions

diff --git a/include/egl.h b/include/egl.h
new file mode 100644
index 0000000..b10fa06
--- /dev/null
+++ b/include/egl.h
@@ -0,0 +1,321 @@
+#ifndef GSR_EGL_H
+#define GSR_EGL_H
+
+/* OpenGL EGL library with a hidden window context (to allow using the opengl functions) */
+
+#include <X11/X.h>
+#include <X11/Xutil.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "vec2.h"
+#include "defs.h"
+
+typedef struct gsr_window gsr_window;
+
+#ifdef _WIN64
+typedef signed   long long int khronos_intptr_t;
+typedef unsigned long long int khronos_uintptr_t;
+typedef signed   long long int khronos_ssize_t;
+typedef unsigned long long int khronos_usize_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef unsigned long  int     khronos_uintptr_t;
+typedef signed   long  int     khronos_ssize_t;
+typedef unsigned long  int     khronos_usize_t;
+#endif
+
+typedef void* EGLDisplay;
+typedef void* EGLNativeDisplayType;
+typedef uintptr_t EGLNativeWindowType;
+typedef uintptr_t EGLNativePixmapType;
+typedef void* EGLConfig;
+typedef void* EGLSurface;
+typedef void* EGLContext;
+typedef void* EGLClientBuffer;
+typedef void* EGLImage;
+typedef void* EGLImageKHR;
+typedef void *GLeglImageOES;
+typedef void (*__eglMustCastToProperFunctionPointerType)(void);
+typedef struct __GLXFBConfigRec *GLXFBConfig;
+typedef struct __GLXcontextRec *GLXContext;
+typedef XID GLXDrawable;
+typedef void(*__GLXextFuncPtr)(void);
+
+#define EGL_SUCCESS                             0x3000
+#define EGL_BUFFER_SIZE                         0x3020
+#define EGL_RENDERABLE_TYPE                     0x3040
+#define EGL_OPENGL_API                          0x30A2
+#define EGL_OPENGL_ES_API                       0x30A0
+#define EGL_OPENGL_BIT                          0x0008
+#define EGL_OPENGL_ES_BIT                       0x0001
+#define EGL_OPENGL_ES2_BIT                      0x0004
+#define EGL_OPENGL_ES3_BIT                      0x00000040
+#define EGL_NONE                                0x3038
+#define EGL_CONTEXT_CLIENT_VERSION              0x3098
+#define EGL_CONTEXT_OPENGL_DEBUG                0x31B0
+#define EGL_BACK_BUFFER                         0x3084
+#define EGL_GL_TEXTURE_2D                       0x30B1
+#define EGL_TRUE                                1
+#define EGL_IMAGE_PRESERVED_KHR                 0x30D2
+#define EGL_NATIVE_PIXMAP_KHR                   0x30B0
+#define EGL_LINUX_DRM_FOURCC_EXT                0x3271
+#define EGL_WIDTH                               0x3057
+#define EGL_HEIGHT                              0x3056
+#define EGL_DMA_BUF_PLANE0_FD_EXT               0x3272
+#define EGL_DMA_BUF_PLANE0_OFFSET_EXT           0x3273
+#define EGL_DMA_BUF_PLANE0_PITCH_EXT            0x3274
+#define EGL_DMA_BUF_PLANE1_FD_EXT               0x3275
+#define EGL_DMA_BUF_PLANE1_OFFSET_EXT           0x3276
+#define EGL_DMA_BUF_PLANE1_PITCH_EXT            0x3277
+#define EGL_DMA_BUF_PLANE2_FD_EXT               0x3278
+#define EGL_DMA_BUF_PLANE2_OFFSET_EXT           0x3279
+#define EGL_DMA_BUF_PLANE2_PITCH_EXT            0x327A
+#define EGL_DMA_BUF_PLANE3_FD_EXT               0x3440
+#define EGL_DMA_BUF_PLANE3_OFFSET_EXT           0x3441
+#define EGL_DMA_BUF_PLANE3_PITCH_EXT            0x3442
+#define EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT      0x3443
+#define EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT      0x3444
+#define EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT      0x3445
+#define EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT      0x3446
+#define EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT      0x3447
+#define EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT      0x3448
+#define EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT      0x3449
+#define EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT      0x344A
+#define EGL_LINUX_DMA_BUF_EXT                   0x3270
+#define EGL_RED_SIZE                            0x3024
+#define EGL_ALPHA_SIZE                          0x3021
+#define EGL_BLUE_SIZE                           0x3022
+#define EGL_GREEN_SIZE                          0x3023
+#define EGL_DEVICE_EXT                          0x322C
+#define EGL_DRM_DEVICE_FILE_EXT                 0x3233
+
+#define GL_FLOAT                                0x1406
+#define GL_FALSE                                0
+#define GL_TRUE                                 1
+#define GL_TRIANGLES                            0x0004
+#define GL_TEXTURE_2D                           0x0DE1
+#define GL_TEXTURE_EXTERNAL_OES                 0x8D65
+#define GL_RED                                  0x1903
+#define GL_GREEN                                0x1904
+#define GL_BLUE                                 0x1905
+#define GL_ALPHA                                0x1906
+#define GL_TEXTURE_SWIZZLE_RGBA                 0x8E46
+#define GL_RG                                   0x8227
+#define GL_RGB                                  0x1907
+#define GL_RGBA                                 0x1908
+#define GL_RGB8                                 0x8051
+#define GL_RGBA8                                0x8058
+#define GL_RGBA16                               0x805B
+#define GL_R8                                   0x8229
+#define GL_RG8                                  0x822B
+#define GL_R16                                  0x822A
+#define GL_RG16                                 0x822C
+#define GL_RGB16                                0x8054
+#define GL_RGBA32F                              0x8814
+#define GL_UNSIGNED_BYTE                        0x1401
+#define GL_COLOR_BUFFER_BIT                     0x00004000
+#define GL_TEXTURE_WRAP_S                       0x2802
+#define GL_TEXTURE_WRAP_T                       0x2803
+#define GL_TEXTURE_MAG_FILTER                   0x2800
+#define GL_TEXTURE_MIN_FILTER                   0x2801
+#define GL_NEAREST                              0x2600
+#define GL_CLAMP_TO_EDGE                        0x812F
+#define GL_LINEAR                               0x2601
+#define GL_FRAMEBUFFER                          0x8D40
+#define GL_COLOR_ATTACHMENT0                    0x8CE0
+#define GL_FRAMEBUFFER_COMPLETE                 0x8CD5
+#define GL_DYNAMIC_DRAW                         0x88E8
+#define GL_ARRAY_BUFFER                         0x8892
+#define GL_BLEND                                0x0BE2
+#define GL_SRC_ALPHA                            0x0302
+#define GL_ONE_MINUS_SRC_ALPHA                  0x0303
+#define GL_DEBUG_OUTPUT_SYNCHRONOUS             0x8242
+#define GL_SCISSOR_TEST                         0x0C11
+#define GL_PACK_ALIGNMENT                       0x0D05
+#define GL_UNPACK_ALIGNMENT                     0x0CF5
+#define GL_TEXTURE0                             0x84C0
+#define GL_TEXTURE1                             0x84C1
+#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT      0x00000020
+#define GL_ALL_BARRIER_BITS                     0xFFFFFFFF
+#define GL_PIXEL_UNPACK_BUFFER                  0x88EC
+#define GL_MAP_WRITE_BIT                        0x0002
+
+#define GL_VENDOR                               0x1F00
+#define GL_RENDERER                             0x1F01
+#define GL_VERSION                              0x1F02
+
+#define GL_COMPILE_STATUS                       0x8B81
+#define GL_INFO_LOG_LENGTH                      0x8B84
+#define GL_FRAGMENT_SHADER                      0x8B30
+#define GL_VERTEX_SHADER                        0x8B31
+#define GL_COMPILE_STATUS                       0x8B81
+#define GL_LINK_STATUS                          0x8B82
+
+typedef unsigned int (*FUNC_eglExportDMABUFImageQueryMESA)(EGLDisplay dpy, EGLImageKHR image, int *fourcc, int *num_planes, uint64_t *modifiers);
+typedef unsigned int (*FUNC_eglExportDMABUFImageMESA)(EGLDisplay dpy, EGLImageKHR image, int *fds, int32_t *strides, int32_t *offsets);
+typedef void (*FUNC_glEGLImageTargetTexture2DOES)(unsigned int target, GLeglImageOES image);
+typedef GLXContext (*FUNC_glXCreateContextAttribsARB)(Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
+typedef void (*FUNC_glXSwapIntervalEXT)(Display * dpy, GLXDrawable drawable, int interval);
+typedef int (*FUNC_glXSwapIntervalMESA)(unsigned int interval);
+typedef int (*FUNC_glXSwapIntervalSGI)(int interval);
+typedef void (*GLDEBUGPROC)(unsigned int source, unsigned int type, unsigned int id, unsigned int severity, int length, const char *message, const void *userParam);
+typedef int (*FUNC_eglQueryDisplayAttribEXT)(EGLDisplay dpy, int32_t attribute, intptr_t *value);
+typedef const char* (*FUNC_eglQueryDeviceStringEXT)(void *device, int32_t name);
+typedef int (*FUNC_eglQueryDmaBufModifiersEXT)(EGLDisplay dpy, int32_t format, int32_t max_modifiers, uint64_t *modifiers, int *external_only, int32_t *num_modifiers);
+typedef void (*FUNC_glCreateMemoryObjectsEXT)(int n, unsigned int *memoryObjects);
+typedef void (*FUNC_glImportMemoryFdEXT)(unsigned int memory, uint64_t size, unsigned int handleType, int fd);
+typedef unsigned char (*FUNC_glIsMemoryObjectEXT)(unsigned int memoryObject);
+typedef void (*FUNC_glTexStorageMem2DEXT)(unsigned int target, int levels, unsigned int internalFormat, int width, int height, unsigned int memory, uint64_t offset);
+typedef void (*FUNC_glBufferStorageMemEXT)(unsigned int target, ssize_t size, unsigned int memory, uint64_t offset);
+typedef void (*FUNC_glNamedBufferStorageMemEXT)(unsigned int buffer, ssize_t size, unsigned int memory, uint64_t offset);
+typedef void (*FUNC_glMemoryObjectParameterivEXT)(unsigned int memoryObject, unsigned int pname, const int *params);
+
+typedef enum {
+    GSR_GL_CONTEXT_TYPE_EGL,
+    GSR_GL_CONTEXT_TYPE_GLX
+} gsr_gl_context_type;
+
+typedef struct gsr_egl gsr_egl;
+struct gsr_egl {
+    void *egl_library;
+    void *glx_library;
+    void *gl_library;
+
+    gsr_gl_context_type context_type;
+    gsr_window *window;
+
+    EGLDisplay egl_display;
+    EGLSurface egl_surface;
+    EGLContext egl_context;
+    const char *dri_card_path;
+
+    void *glx_context;
+    void *glx_fb_config;
+
+    gsr_gpu_info gpu_info;
+
+    char card_path[128];
+
+    int32_t (*eglGetError)(void);
+    EGLDisplay (*eglGetDisplay)(EGLNativeDisplayType display_id);
+    unsigned int (*eglInitialize)(EGLDisplay dpy, int32_t *major, int32_t *minor);
+    unsigned int (*eglTerminate)(EGLDisplay dpy);
+    unsigned int (*eglChooseConfig)(EGLDisplay dpy, const int32_t *attrib_list, EGLConfig *configs, int32_t config_size, int32_t *num_config);
+    EGLSurface (*eglCreateWindowSurface)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const int32_t *attrib_list);
+    EGLContext (*eglCreateContext)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const int32_t *attrib_list);
+    unsigned int (*eglMakeCurrent)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
+    EGLImage (*eglCreateImage)(EGLDisplay dpy, EGLContext ctx, unsigned int target, EGLClientBuffer buffer, const intptr_t *attrib_list);
+    unsigned int (*eglDestroyContext)(EGLDisplay dpy, EGLContext ctx);
+    unsigned int (*eglDestroySurface)(EGLDisplay dpy, EGLSurface surface);
+    unsigned int (*eglDestroyImage)(EGLDisplay dpy, EGLImage image);
+    unsigned int (*eglSwapInterval)(EGLDisplay dpy, int32_t interval);
+    unsigned int (*eglSwapBuffers)(EGLDisplay dpy, EGLSurface surface);
+    unsigned int (*eglBindAPI)(unsigned int api);
+    __eglMustCastToProperFunctionPointerType (*eglGetProcAddress)(const char *procname);
+
+    FUNC_eglExportDMABUFImageQueryMESA eglExportDMABUFImageQueryMESA;
+    FUNC_eglExportDMABUFImageMESA eglExportDMABUFImageMESA;
+    FUNC_glEGLImageTargetTexture2DOES glEGLImageTargetTexture2DOES;
+    FUNC_eglQueryDisplayAttribEXT eglQueryDisplayAttribEXT;
+    FUNC_eglQueryDeviceStringEXT eglQueryDeviceStringEXT;
+    FUNC_eglQueryDmaBufModifiersEXT eglQueryDmaBufModifiersEXT;
+    FUNC_glCreateMemoryObjectsEXT glCreateMemoryObjectsEXT;
+    FUNC_glImportMemoryFdEXT glImportMemoryFdEXT;
+    FUNC_glIsMemoryObjectEXT glIsMemoryObjectEXT;
+    FUNC_glTexStorageMem2DEXT glTexStorageMem2DEXT;
+    FUNC_glBufferStorageMemEXT glBufferStorageMemEXT;
+    FUNC_glNamedBufferStorageMemEXT glNamedBufferStorageMemEXT;
+    FUNC_glMemoryObjectParameterivEXT glMemoryObjectParameterivEXT;
+
+    __GLXextFuncPtr (*glXGetProcAddress)(const unsigned char *procName);
+    GLXFBConfig* (*glXChooseFBConfig)(Display *dpy, int screen, const int *attribList, int *nitems);
+    Bool (*glXMakeContextCurrent)(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
+    // TODO: Remove
+    GLXContext (*glXCreateNewContext)(Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool direct);
+    void (*glXDestroyContext)(Display *dpy, GLXContext ctx);
+    void (*glXSwapBuffers)(Display *dpy, GLXDrawable drawable);
+    FUNC_glXCreateContextAttribsARB glXCreateContextAttribsARB;
+
+    /* Optional */
+    FUNC_glXSwapIntervalEXT glXSwapIntervalEXT;
+    FUNC_glXSwapIntervalMESA glXSwapIntervalMESA;
+    FUNC_glXSwapIntervalSGI glXSwapIntervalSGI;
+
+    unsigned int (*glGetError)(void);
+    const unsigned char* (*glGetString)(unsigned int name);
+    void (*glFlush)(void);
+    void (*glFinish)(void);
+    void (*glClear)(unsigned int mask);
+    void (*glClearColor)(float red, float green, float blue, float alpha);
+    void (*glGenTextures)(int n, unsigned int *textures);
+    void (*glDeleteTextures)(int n, const unsigned int *texture);
+    void (*glActiveTexture)(unsigned int texture);
+    void (*glBindTexture)(unsigned int target, unsigned int texture);
+    void (*glBindImageTexture)(unsigned int unit, unsigned int texture, int level, unsigned char layered, int layer, unsigned int access, unsigned int format);
+    void (*glTexParameteri)(unsigned int target, unsigned int pname, int param);
+    void (*glTexParameteriv)(unsigned int target, unsigned int pname, const int *params);
+    void (*glTexParameterfv)(unsigned int target, unsigned int pname, const float *params);
+    void (*glTexImage2D)(unsigned int target, int level, int internalFormat, int width, int height, int border, unsigned int format, unsigned int type, const void *pixels);
+    void (*glTexSubImage2D)(unsigned int target, int level, int xoffset, int yoffset, int width, int height, unsigned format, unsigned type, const void *pixels);
+    void (*glTexStorage2D)(unsigned int target, int levels, unsigned int internalformat, int width, int height);
+    void (*glGetTexImage)(unsigned int target, int level, unsigned int format, unsigned int type, void *pixels);
+    void (*glGenFramebuffers)(int n, unsigned int *framebuffers);
+    void (*glBindFramebuffer)(unsigned int target, unsigned int framebuffer);
+    void (*glDeleteFramebuffers)(int n, const unsigned int *framebuffers);
+    /* TODO: Note: this is only available since OpenGL ES 3.1 */
+    void (*glMemoryBarrier)(unsigned int barriers);
+    void (*glViewport)(int x, int y, int width, int height);
+    void (*glFramebufferTexture2D)(unsigned int target, unsigned int attachment, unsigned int textarget, unsigned int texture, int level);
+    void (*glDrawBuffers)(int n, const unsigned int *bufs);
+    unsigned int (*glCheckFramebufferStatus)(unsigned int target);
+    void (*glBindBuffer)(unsigned int target, unsigned int buffer);
+    void (*glGenBuffers)(int n, unsigned int *buffers);
+    void (*glBufferData)(unsigned int target, khronos_ssize_t size, const void *data, unsigned int usage);
+    void (*glBufferSubData)(unsigned int target, khronos_intptr_t offset, khronos_ssize_t size, const void *data);
+    void (*glDeleteBuffers)(int n, const unsigned int *buffers);
+    void (*glGenVertexArrays)(int n, unsigned int *arrays);
+    void (*glBindVertexArray)(unsigned int array);
+    void (*glDeleteVertexArrays)(int n, const unsigned int *arrays);
+    unsigned int (*glCreateProgram)(void);
+    unsigned int (*glCreateShader)(unsigned int type);
+    void (*glAttachShader)(unsigned int program, unsigned int shader);
+    void (*glBindAttribLocation)(unsigned int program, unsigned int index, const char *name);
+    void (*glCompileShader)(unsigned int shader);
+    void (*glLinkProgram)(unsigned int program);
+    void (*glShaderSource)(unsigned int shader, int count, const char *const*string, const int *length);
+    void (*glUseProgram)(unsigned int program);
+    void (*glGetProgramInfoLog)(unsigned int program, int bufSize, int *length, char *infoLog);
+    void (*glGetShaderiv)(unsigned int shader, unsigned int pname, int *params);
+    void (*glGetShaderInfoLog)(unsigned int shader, int bufSize, int *length, char *infoLog);
+    void (*glDeleteProgram)(unsigned int program);
+    void (*glDeleteShader)(unsigned int shader);
+    void (*glGetProgramiv)(unsigned int program, unsigned int pname, int *params);
+    void (*glVertexAttribPointer)(unsigned int index, int size, unsigned int type, unsigned char normalized, int stride, const void *pointer);
+    void (*glEnableVertexAttribArray)(unsigned int index);
+    void (*glDrawArrays)(unsigned int mode, int first, int count);
+    void (*glEnable)(unsigned int cap);
+    void (*glDisable)(unsigned int cap);
+    void (*glBlendFunc)(unsigned int sfactor, unsigned int dfactor);
+    void (*glPixelStorei)(unsigned int pname, int param);
+    int (*glGetUniformLocation)(unsigned int program, const char *name);
+    void (*glUniform1f)(int location, float v0);
+    void (*glUniform2f)(int location, float v0, float v1);
+    void (*glUniform1i)(int location, int v0);
+    void (*glUniform2i)(int location, int v0, int v1);
+    void (*glUniformMatrix2fv)(int location, int count, unsigned char transpose, const float *value);
+    void (*glDebugMessageCallback)(GLDEBUGPROC callback, const void *userParam);
+    void (*glScissor)(int x, int y, int width, int height);
+    void (*glCreateBuffers)(int n, unsigned int *buffers);
+    void (*glReadPixels)(int x, int y, int width, int height, unsigned int format, unsigned int type, void *pixels);
+    void* (*glMapBufferRange)(unsigned int target, intptr_t offset, ssize_t length, unsigned int access);
+    unsigned char (*glUnmapBuffer)(unsigned int target);
+    void (*glGetIntegerv)(unsigned int pname, int *params);
+};
+
+bool gsr_egl_load(gsr_egl *self, gsr_window *window, bool is_monitor_capture, bool enable_debug);
+void gsr_egl_unload(gsr_egl *self);
+
+/* Does opengl swap with egl or glx, depending on which one is active */
+void gsr_egl_swap_buffers(gsr_egl *self);
+
+#endif /* GSR_EGL_H */