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authorallusive-dev <[email protected]>2023-09-19 17:46:20 +1000
committerallusive-dev <[email protected]>2023-09-19 17:46:20 +1000
commit5650d887357bf2a3fac8c5fd4f467bf8795b5fc4 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /src/opengl.h
parentUpdate picom.sample.conf (diff)
downloadcompfy-5650d887357bf2a3fac8c5fd4f467bf8795b5fc4.tar.xz
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diff --git a/src/opengl.h b/src/opengl.h
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-// SPDX-License-Identifier: MIT
-/*
- * Compton - a compositor for X11
- *
- * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
- *
- * Copyright (c) 2011-2013, Christopher Jeffrey
- * See LICENSE-mit for more information.
- *
- */
-
-#pragma once
-
-#include "common.h"
-#include "compiler.h"
-#include "log.h"
-#include "region.h"
-#include "render.h"
-#include "win.h"
-
-#include <GL/gl.h>
-#include <GL/glx.h>
-#include <ctype.h>
-#include <locale.h>
-#include <stdlib.h>
-#include <string.h>
-#include <xcb/render.h>
-#include <xcb/xcb.h>
-
-typedef struct {
- /// Fragment shader for blur.
- GLuint frag_shader;
- /// GLSL program for blur.
- GLuint prog;
- /// Location of uniform "offset_x" in blur GLSL program.
- GLint unifm_offset_x;
- /// Location of uniform "offset_y" in blur GLSL program.
- GLint unifm_offset_y;
- /// Location of uniform "factor_center" in blur GLSL program.
- GLint unifm_factor_center;
-} glx_blur_pass_t;
-
-typedef struct {
- /// Fragment shader for rounded corners.
- GLuint frag_shader;
- /// GLSL program for rounded corners.
- GLuint prog;
- /// Location of uniform "radius" in rounded-corners GLSL program.
- GLint unifm_radius;
- /// Location of uniform "texcoord" in rounded-corners GLSL program.
- GLint unifm_texcoord;
- /// Location of uniform "texsize" in rounded-corners GLSL program.
- GLint unifm_texsize;
- /// Location of uniform "borderw" in rounded-corners GLSL program.
- GLint unifm_borderw;
- /// Location of uniform "borderc" in rounded-corners GLSL program.
- GLint unifm_borderc;
- /// Location of uniform "resolution" in rounded-corners GLSL program.
- GLint unifm_resolution;
- /// Location of uniform "texture_scr" in rounded-corners GLSL program.
- GLint unifm_tex_scr;
-
-} glx_round_pass_t;
-
-/// Structure containing GLX-dependent data for a session.
-typedef struct glx_session {
- // === OpenGL related ===
- /// GLX context.
- GLXContext context;
- /// Whether we have GL_ARB_texture_non_power_of_two.
- bool has_texture_non_power_of_two;
- /// Current GLX Z value.
- int z;
- glx_blur_pass_t *blur_passes;
- glx_round_pass_t *round_passes;
-} glx_session_t;
-
-/// @brief Wrapper of a binded GLX texture.
-typedef struct _glx_texture {
- GLuint texture;
- GLXPixmap glpixmap;
- xcb_pixmap_t pixmap;
- GLenum target;
- int width;
- int height;
- bool y_inverted;
-} glx_texture_t;
-
-#define CGLX_SESSION_INIT \
- { .context = NULL }
-
-bool glx_dim_dst(session_t *ps, int dx, int dy, int width, int height, int z,
- GLfloat factor, const region_t *reg_tgt);
-
-bool glx_render(session_t *ps, const glx_texture_t *ptex, int x, int y, int dx, int dy,
- int width, int height, int z, double opacity, bool argb, bool neg,
- const region_t *reg_tgt, const glx_prog_main_t *pprogram);
-
-bool glx_init(session_t *ps, bool need_render);
-
-void glx_destroy(session_t *ps);
-
-void glx_on_root_change(session_t *ps);
-
-bool glx_init_blur(session_t *ps);
-
-bool glx_init_rounded_corners(session_t *ps);
-
-#ifdef CONFIG_OPENGL
-bool glx_load_prog_main(const char *vshader_str, const char *fshader_str,
- glx_prog_main_t *pprogram);
-#endif
-
-bool glx_bind_pixmap(session_t *ps, glx_texture_t **pptex, xcb_pixmap_t pixmap, int width,
- int height, bool repeat, const struct glx_fbconfig_info *);
-
-void glx_release_pixmap(session_t *ps, glx_texture_t *ptex);
-
-bool glx_bind_texture(session_t *ps, glx_texture_t **pptex, int x, int y, int width, int height);
-
-void glx_paint_pre(session_t *ps, region_t *preg) attr_nonnull(1, 2);
-
-/**
- * Check if a texture is binded, or is binded to the given pixmap.
- */
-static inline bool glx_tex_binded(const glx_texture_t *ptex, xcb_pixmap_t pixmap) {
- return ptex && ptex->glpixmap && ptex->texture && (!pixmap || pixmap == ptex->pixmap);
-}
-
-void glx_set_clip(session_t *ps, const region_t *reg);
-
-bool glx_blur_dst(session_t *ps, int dx, int dy, int width, int height, float z,
- GLfloat factor_center, const region_t *reg_tgt, glx_blur_cache_t *pbc);
-
-bool glx_round_corners_dst(session_t *ps, struct managed_win *w,
- const glx_texture_t *ptex, int dx, int dy, int width,
- int height, float z, float cr, const region_t *reg_tgt);
-
-GLuint glx_create_shader(GLenum shader_type, const char *shader_str);
-
-GLuint glx_create_program(const GLuint *const shaders, int nshaders);
-
-GLuint glx_create_program_from_str(const char *vert_shader_str, const char *frag_shader_str);
-
-unsigned char *glx_take_screenshot(session_t *ps, int *out_length);
-
-/**
- * Check if there's a GLX context.
- */
-static inline bool glx_has_context(session_t *ps) {
- return ps->psglx && ps->psglx->context;
-}
-
-/**
- * Ensure we have a GLX context.
- */
-static inline bool ensure_glx_context(session_t *ps) {
- // Create GLX context
- if (!glx_has_context(ps))
- glx_init(ps, false);
-
- return ps->psglx->context;
-}
-
-/**
- * Free a GLX texture.
- */
-static inline void free_texture_r(session_t *ps attr_unused, GLuint *ptexture) {
- if (*ptexture) {
- assert(glx_has_context(ps));
- glDeleteTextures(1, ptexture);
- *ptexture = 0;
- }
-}
-
-/**
- * Free a GLX Framebuffer object.
- */
-static inline void free_glx_fbo(GLuint *pfbo) {
- if (*pfbo) {
- glDeleteFramebuffers(1, pfbo);
- *pfbo = 0;
- }
- assert(!*pfbo);
-}
-
-/**
- * Free data in glx_blur_cache_t on resize.
- */
-static inline void free_glx_bc_resize(session_t *ps, glx_blur_cache_t *pbc) {
- free_texture_r(ps, &pbc->textures[0]);
- free_texture_r(ps, &pbc->textures[1]);
- pbc->width = 0;
- pbc->height = 0;
-}
-
-/**
- * Free a glx_blur_cache_t
- */
-static inline void free_glx_bc(session_t *ps, glx_blur_cache_t *pbc) {
- free_glx_fbo(&pbc->fbo);
- free_glx_bc_resize(ps, pbc);
-}
-
-/**
- * Free a glx_texture_t.
- */
-static inline void free_texture(session_t *ps, glx_texture_t **pptex) {
- glx_texture_t *ptex = *pptex;
-
- // Quit if there's nothing
- if (!ptex) {
- return;
- }
-
- glx_release_pixmap(ps, ptex);
-
- free_texture_r(ps, &ptex->texture);
-
- // Free structure itself
- free(ptex);
- *pptex = NULL;
-}
-
-/**
- * Free GLX part of paint_t.
- */
-static inline void free_paint_glx(session_t *ps, paint_t *ppaint) {
- free_texture(ps, &ppaint->ptex);
-#ifdef CONFIG_OPENGL
- free(ppaint->fbcfg);
-#endif
- ppaint->fbcfg = NULL;
-}
-
-/**
- * Free GLX part of win.
- */
-static inline void free_win_res_glx(session_t *ps, struct managed_win *w) {
- free_paint_glx(ps, &w->paint);
- free_paint_glx(ps, &w->shadow_paint);
-#ifdef CONFIG_OPENGL
- free_glx_bc(ps, &w->glx_blur_cache);
- free_texture(ps, &w->glx_texture_bg);
-#endif
-}