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Remove sRGB framebuffer config filtering and add some debug output.

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This commit is contained in:
Roz K
2022-12-16 03:21:10 +01:00
parent 8f3612bed2
commit fa7f1bdaa9
1 changed files with 10 additions and 12 deletions
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22
cpp/opengl/render_context_glx.cpp
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@ -109,38 +109,36 @@ rk_window_t rk_create_context(
int fbcount;
GLXFBConfig * const fbc = glXChooseFBConfig(rk_display, DefaultScreen(rk_display), rk_visual_attribs, &fbcount);
if (!fbc) {
rk_printf("Failed to retrieve a framebuffer config.");
rk_printf("Failed to retrieve framebuffer configs.");
rk_destroy_context();
return nullptr;
}
printf("[GLX] Found %d framebuffer configs.\n", fbcount);
int best_fbc = -1;
int best_num_samp = -1;
for (int i = 0; i < fbcount; ++i) {
XVisualInfo * vi = glXGetVisualFromFBConfig(rk_display, fbc[i]);
if (vi) {
int srgb = 0;
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB, &srgb);
if (srgb) {
int samp_buf, samples;
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLES, &samples);
if (best_fbc < 0 || (samp_buf && samples > best_num_samp)) {
best_fbc = i;
best_num_samp = samples;
}
int samp_buf, samples;
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLES, &samples);
if (best_fbc < 0 || (samp_buf && samples > best_num_samp)) {
best_fbc = i;
best_num_samp = samples;
}
XFree(vi);
}
}
if (best_fbc == -1) {
XFree(fbc);
rk_printf("Failed to find sRGB framebuffer.");
rk_printf("Failed to find a suitable framebuffer config.");
rk_destroy_context();
return nullptr;
}
GLXFBConfig const bestFbc = fbc[best_fbc];
XFree(fbc);
printf("[GLX] Select framebuffer config with %d samples.\n", best_num_samp);
XVisualInfo * const vi = glXGetVisualFromFBConfig(rk_display, bestFbc);
rk_colormap = XCreateColormap(rk_display, RootWindow(rk_display, vi->screen), vi->visual, AllocNone);