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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2014-03-31 23:20:55 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2014-03-31 23:20:55 -0500
commitfb41c5018bbe1808176636ac6c51e2b927cda8f2 (patch)
treed975f53fc82d5b7fcf863a46131d49065b4ecdf2 /twin/compton-tde/opengl.h
parentfbd3a27d6e0998f6052e93ce60f68c5261b38d2d (diff)
downloadtdebase-fb41c5018bbe1808176636ac6c51e2b927cda8f2.tar.gz
tdebase-fb41c5018bbe1808176636ac6c51e2b927cda8f2.zip
Move sources to correct directory
Diffstat (limited to 'twin/compton-tde/opengl.h')
-rw-r--r--twin/compton-tde/opengl.h145
1 files changed, 145 insertions, 0 deletions
diff --git a/twin/compton-tde/opengl.h b/twin/compton-tde/opengl.h
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index 000000000..8628e36d3
--- /dev/null
+++ b/twin/compton-tde/opengl.h
@@ -0,0 +1,145 @@
+/*
+ * Compton - a compositor for X11
+ *
+ * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
+ *
+ * Copyright (c) 2011-2013, Christopher Jeffrey
+ * See LICENSE for more information.
+ *
+ */
+
+#include "common.h"
+
+#include <ctype.h>
+#include <locale.h>
+
+#ifdef DEBUG_GLX_ERR
+
+/**
+ * Get a textual representation of an OpenGL error.
+ */
+static inline const char *
+glx_dump_err_str(GLenum err) {
+ switch (err) {
+ CASESTRRET(GL_NO_ERROR);
+ CASESTRRET(GL_INVALID_ENUM);
+ CASESTRRET(GL_INVALID_VALUE);
+ CASESTRRET(GL_INVALID_OPERATION);
+ CASESTRRET(GL_INVALID_FRAMEBUFFER_OPERATION);
+ CASESTRRET(GL_OUT_OF_MEMORY);
+ CASESTRRET(GL_STACK_UNDERFLOW);
+ CASESTRRET(GL_STACK_OVERFLOW);
+ }
+
+ return NULL;
+}
+
+/**
+ * Check for GLX error.
+ *
+ * http://blog.nobel-joergensen.com/2013/01/29/debugging-opengl-using-glgeterror/
+ */
+static inline void
+glx_check_err_(session_t *ps, const char *func, int line) {
+ if (!ps->glx_context) return;
+
+ GLenum err = GL_NO_ERROR;
+
+ while (GL_NO_ERROR != (err = glGetError())) {
+ print_timestamp(ps);
+ printf("%s():%d: GLX error ", func, line);
+ const char *errtext = glx_dump_err_str(err);
+ if (errtext) {
+ printf_dbg("%s\n", errtext);
+ }
+ else {
+ printf_dbg("%d\n", err);
+ }
+ }
+}
+
+#define glx_check_err(ps) glx_check_err_(ps, __func__, __LINE__)
+#else
+#define glx_check_err(ps) ((void) 0)
+#endif
+
+/**
+ * Check if a word is in string.
+ */
+static inline bool
+wd_is_in_str(const char *haystick, const char *needle) {
+ if (!haystick)
+ return false;
+
+ assert(*needle);
+
+ const char *pos = haystick - 1;
+ while ((pos = strstr(pos + 1, needle))) {
+ // Continue if it isn't a word boundary
+ if (((pos - haystick) && !isspace(*(pos - 1)))
+ || (strlen(pos) > strlen(needle) && !isspace(pos[strlen(needle)])))
+ continue;
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * Check if a GLX extension exists.
+ */
+static inline bool
+glx_hasglxext(session_t *ps, const char *ext) {
+ const char *glx_exts = glXQueryExtensionsString(ps->dpy, ps->scr);
+ if (!glx_exts) {
+ printf_errf("(): Failed get GLX extension list.");
+ return false;
+ }
+
+ bool found = wd_is_in_str(glx_exts, ext);
+ if (!found)
+ printf_errf("(): Missing GLX extension %s.", ext);
+
+ return found;
+}
+
+/**
+ * Check if a GLX extension exists.
+ */
+static inline bool
+glx_hasglext(session_t *ps, const char *ext) {
+ const char *gl_exts = (const char *) glGetString(GL_EXTENSIONS);
+ if (!gl_exts) {
+ printf_errf("(): Failed get GL extension list.");
+ return false;
+ }
+
+ bool found = wd_is_in_str(gl_exts, ext);
+ if (!found)
+ printf_errf("(): Missing GL extension %s.", ext);
+
+ return found;
+}
+
+static inline XVisualInfo *
+get_visualinfo_from_visual(session_t *ps, Visual *visual) {
+ XVisualInfo vreq = { .visualid = XVisualIDFromVisual(visual) };
+ int nitems = 0;
+
+ return XGetVisualInfo(ps->dpy, VisualIDMask, &vreq, &nitems);
+}
+
+static bool
+glx_update_fbconfig(session_t *ps);
+
+static int
+glx_cmp_fbconfig(session_t *ps,
+ const glx_fbconfig_t *pfbc_a, const glx_fbconfig_t *pfbc_b);
+
+static void
+glx_render_color(session_t *ps, int dx, int dy, int width, int height, int z,
+ XserverRegion reg_tgt, const reg_data_t *pcache_reg);
+
+static void
+glx_render_dots(session_t *ps, int dx, int dy, int width, int height, int z,
+ XserverRegion reg_tgt, const reg_data_t *pcache_reg);