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146 lines
3.3 KiB
146 lines
3.3 KiB
/*
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* Compton - a compositor for X11
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*
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* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
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*
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* Copyright (c) 2011-2013, Christopher Jeffrey
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* See LICENSE for more information.
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*
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*/
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#include "common.h"
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#include <ctype.h>
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#include <locale.h>
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#ifdef DEBUG_GLX_ERR
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/**
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* Get a textual representation of an OpenGL error.
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*/
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static inline const char *
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glx_dump_err_str(GLenum err) {
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switch (err) {
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CASESTRRET(GL_NO_ERROR);
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CASESTRRET(GL_INVALID_ENUM);
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CASESTRRET(GL_INVALID_VALUE);
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CASESTRRET(GL_INVALID_OPERATION);
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CASESTRRET(GL_INVALID_FRAMEBUFFER_OPERATION);
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CASESTRRET(GL_OUT_OF_MEMORY);
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CASESTRRET(GL_STACK_UNDERFLOW);
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CASESTRRET(GL_STACK_OVERFLOW);
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}
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return NULL;
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}
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/**
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* Check for GLX error.
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*
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* http://blog.nobel-joergensen.com/2013/01/29/debugging-opengl-using-glgeterror/
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*/
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static inline void
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glx_check_err_(session_t *ps, const char *func, int line) {
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if (!ps->psglx->context) return;
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GLenum err = GL_NO_ERROR;
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while (GL_NO_ERROR != (err = glGetError())) {
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print_timestamp(ps);
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printf("%s():%d: GLX error ", func, line);
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const char *errtext = glx_dump_err_str(err);
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if (errtext) {
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printf_dbg("%s\n", errtext);
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}
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else {
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printf_dbg("%d\n", err);
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}
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}
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}
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#define glx_check_err(ps) glx_check_err_(ps, __func__, __LINE__)
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#else
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#define glx_check_err(ps) ((void) 0)
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#endif
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/**
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* Check if a word is in string.
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*/
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static inline bool
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wd_is_in_str(const char *haystick, const char *needle) {
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if (!haystick)
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return false;
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assert(*needle);
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const char *pos = haystick - 1;
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while ((pos = strstr(pos + 1, needle))) {
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// Continue if it isn't a word boundary
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if (((pos - haystick) && !isspace(*(pos - 1)))
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|| (strlen(pos) > strlen(needle) && !isspace(pos[strlen(needle)])))
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continue;
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return true;
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}
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return false;
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}
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/**
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* Check if a GLX extension exists.
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*/
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static inline bool
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glx_hasglxext(session_t *ps, const char *ext) {
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const char *glx_exts = glXQueryExtensionsString(ps->dpy, ps->scr);
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if (!glx_exts) {
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printf_errf("(): Failed get GLX extension list.");
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return false;
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}
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bool found = wd_is_in_str(glx_exts, ext);
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if (!found)
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printf_errf("(): Missing GLX extension %s.", ext);
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return found;
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}
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/**
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* Check if a GLX extension exists.
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*/
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static inline bool
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glx_hasglext(session_t *ps, const char *ext) {
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const char *gl_exts = (const char *) glGetString(GL_EXTENSIONS);
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if (!gl_exts) {
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printf_errf("(): Failed get GL extension list.");
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return false;
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}
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bool found = wd_is_in_str(gl_exts, ext);
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if (!found)
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printf_errf("(): Missing GL extension %s.", ext);
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return found;
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}
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static inline XVisualInfo *
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get_visualinfo_from_visual(session_t *ps, Visual *visual) {
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XVisualInfo vreq = { .visualid = XVisualIDFromVisual(visual) };
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int nitems = 0;
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return XGetVisualInfo(ps->dpy, VisualIDMask, &vreq, &nitems);
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}
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static bool
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glx_update_fbconfig(session_t *ps);
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static int
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glx_cmp_fbconfig(session_t *ps,
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const glx_fbconfig_t *pfbc_a, const glx_fbconfig_t *pfbc_b);
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static void
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glx_render_color(session_t *ps, int dx, int dy, int width, int height, int z,
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XserverRegion reg_tgt, const reg_data_t *pcache_reg);
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static void
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glx_render_dots(session_t *ps, int dx, int dy, int width, int height, int z,
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XserverRegion reg_tgt, const reg_data_t *pcache_reg);
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