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EglChooseConfig: choose an accelerated configuration

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- especially because we can be promoted to true color 888
  make sure we don't select a potentially software implementation

- hopefully fix bug #1482 (EGL ChooseConfig selects software renderer on Android)
This commit is contained in:
Sylvain 2021-04-30 22:01:48 +02:00
parent 9161f95166
commit 7b284dbb34
No known key found for this signature in database
GPG Key ID: 5F87E02E5BC0939E
1 changed files with 41 additions and 15 deletions
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56
src/video/SDL_egl.c
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@ -695,8 +695,8 @@ static void dumpconfig(_THIS, EGLConfig config)
#endif /* DUMP_EGL_CONFIG */
int
SDL_EGL_ChooseConfig(_THIS)
static int
SDL_EGL_PrivateChooseConfig(_THIS, SDL_bool set_config_caveat_none)
{
/* 64 seems nice. */
EGLint attribs[64];
@ -706,11 +706,6 @@ SDL_EGL_ChooseConfig(_THIS)
SDL_bool has_matching_format = SDL_FALSE;
int i, j, best_bitdiff = -1, best_truecolor_bitdiff = -1;
int truecolor_config_idx = -1;
if (!_this->egl_data) {
/* The EGL library wasn't loaded, SDL_GetError() should have info */
return -1;
}
/* Get a valid EGL configuration */
i = 0;
@ -720,12 +715,17 @@ SDL_EGL_ChooseConfig(_THIS)
attribs[i++] = _this->gl_config.green_size;
attribs[i++] = EGL_BLUE_SIZE;
attribs[i++] = _this->gl_config.blue_size;
if (set_config_caveat_none) {
attribs[i++] = EGL_CONFIG_CAVEAT;
attribs[i++] = EGL_NONE;
}
if (_this->gl_config.alpha_size) {
attribs[i++] = EGL_ALPHA_SIZE;
attribs[i++] = _this->gl_config.alpha_size;
}
if (_this->gl_config.buffer_size) {
attribs[i++] = EGL_BUFFER_SIZE;
attribs[i++] = _this->gl_config.buffer_size;
@ -740,12 +740,12 @@ SDL_EGL_ChooseConfig(_THIS)
attribs[i++] = EGL_STENCIL_SIZE;
attribs[i++] = _this->gl_config.stencil_size;
}
if (_this->gl_config.multisamplebuffers) {
attribs[i++] = EGL_SAMPLE_BUFFERS;
attribs[i++] = _this->gl_config.multisamplebuffers;
}
if (_this->gl_config.multisamplesamples) {
attribs[i++] = EGL_SAMPLES;
attribs[i++] = _this->gl_config.multisamplesamples;
@ -789,7 +789,7 @@ SDL_EGL_ChooseConfig(_THIS)
configs, SDL_arraysize(configs),
&found_configs) == EGL_FALSE ||
found_configs == 0) {
return SDL_EGL_SetError("Couldn't find matching EGL config", "eglChooseConfig");
return -1;
}
/* first ensure that a found config has a matching format, or the function will fall through. */
@ -817,7 +817,7 @@ SDL_EGL_ChooseConfig(_THIS)
if (has_matching_format && _this->egl_data->egl_required_visual_id) {
EGLint format;
_this->egl_data->eglGetConfigAttrib(_this->egl_data->egl_display,
configs[i],
configs[i],
EGL_NATIVE_VISUAL_ID, &format);
if (_this->egl_data->egl_required_visual_id != format) {
continue;
@ -839,7 +839,7 @@ SDL_EGL_ChooseConfig(_THIS)
if (attribs[j] == EGL_NONE) {
break;
}
if ( attribs[j+1] != EGL_DONT_CARE && (
attribs[j] == EGL_RED_SIZE ||
attribs[j] == EGL_GREEN_SIZE ||
@ -887,10 +887,36 @@ SDL_EGL_ChooseConfig(_THIS)
#ifdef DUMP_EGL_CONFIG
dumpconfig(_this, _this->egl_data->egl_config);
#endif
return 0;
}
int
SDL_EGL_ChooseConfig(_THIS)
{
int ret;
if (!_this->egl_data) {
/* The EGL library wasn't loaded, SDL_GetError() should have info */
return -1;
}
/* Try with EGL_CONFIG_CAVEAT set to EGL_NONE, to avoid any EGL_SLOW_CONFIG or EGL_NON_CONFORMANT_CONFIG */
ret = SDL_EGL_PrivateChooseConfig(_this, SDL_TRUE);
if (ret == 0) {
return 0;
}
/* Fallback with all configs */
ret = SDL_EGL_PrivateChooseConfig(_this, SDL_FALSE);
if (ret == 0) {
SDL_Log("SDL_EGL_ChooseConfig: found a slow EGL config");
return 0;
}
return SDL_EGL_SetError("Couldn't find matching EGL config", "eglChooseConfig");
}
SDL_GLContext
SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface)
{