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Remove sRGB framebuffer config filtering and add some debug output.

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Roz K 2022-12-16 03:21:10 +01:00
parent 8f3612bed2
commit fa7f1bdaa9
Signed by: roz
GPG Key ID: 51FBF4E483E1C822
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; int fbcount;
GLXFBConfig * const fbc = glXChooseFBConfig(rk_display, DefaultScreen(rk_display), rk_visual_attribs, &fbcount); GLXFBConfig * const fbc = glXChooseFBConfig(rk_display, DefaultScreen(rk_display), rk_visual_attribs, &fbcount);
if (!fbc) { if (!fbc) {
rk_printf("Failed to retrieve a framebuffer config."); rk_printf("Failed to retrieve framebuffer configs.");
rk_destroy_context(); rk_destroy_context();
return nullptr; return nullptr;
} }
printf("[GLX] Found %d framebuffer configs.\n", fbcount);
int best_fbc = -1; int best_fbc = -1;
int best_num_samp = -1; int best_num_samp = -1;
for (int i = 0; i < fbcount; ++i) { for (int i = 0; i < fbcount; ++i) {
XVisualInfo * vi = glXGetVisualFromFBConfig(rk_display, fbc[i]); XVisualInfo * vi = glXGetVisualFromFBConfig(rk_display, fbc[i]);
if (vi) { if (vi) {
int srgb = 0; int samp_buf, samples;
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB, &srgb); glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
if (srgb) { glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLES, &samples);
int samp_buf, samples; if (best_fbc < 0 || (samp_buf && samples > best_num_samp)) {
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf); best_fbc = i;
glXGetFBConfigAttrib(rk_display, fbc[i], GLX_SAMPLES, &samples); best_num_samp = samples;
if (best_fbc < 0 || (samp_buf && samples > best_num_samp)) {
best_fbc = i;
best_num_samp = samples;
}
} }
XFree(vi); XFree(vi);
} }
} }
if (best_fbc == -1) { if (best_fbc == -1) {
XFree(fbc); XFree(fbc);
rk_printf("Failed to find sRGB framebuffer."); rk_printf("Failed to find a suitable framebuffer config.");
rk_destroy_context(); rk_destroy_context();
return nullptr; return nullptr;
} }
GLXFBConfig const bestFbc = fbc[best_fbc]; GLXFBConfig const bestFbc = fbc[best_fbc];
XFree(fbc); XFree(fbc);
printf("[GLX] Select framebuffer config with %d samples.\n", best_num_samp);
XVisualInfo * const vi = glXGetVisualFromFBConfig(rk_display, bestFbc); XVisualInfo * const vi = glXGetVisualFromFBConfig(rk_display, bestFbc);
rk_colormap = XCreateColormap(rk_display, RootWindow(rk_display, vi->screen), vi->visual, AllocNone); rk_colormap = XCreateColormap(rk_display, RootWindow(rk_display, vi->screen), vi->visual, AllocNone);