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Evas GL: Fallback to depth24, stencil8 if GL_GLES is used 

If depth32 or stencil16 are requested, those are most likely to
fail with GLES. In that case, fallback automatically to 24+8.
This commit is contained in:
Jean-Philippe Andre 2015-03-16 17:19:37 +09:00
parent e271727c01
commit a4b649ca8c
1 changed files with 10 additions and 1 deletions
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11
src/modules/evas/engines/gl_common/evas_gl_core.c
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@ -1236,6 +1236,7 @@ _internal_config_set(void *eng_data, EVGL_Surface *sfc, Evas_GL_Config *cfg)
if (cfg->multisample_bits)
msaa_samples = evgl_engine->caps.msaa_samples[cfg->multisample_bits-1];
try_again:
// Run through all the available formats and choose the first match
for (i = 0; i < evgl_engine->caps.num_fbo_fmts; ++i)
{
@ -1302,11 +1303,19 @@ _internal_config_set(void *eng_data, EVGL_Surface *sfc, Evas_GL_Config *cfg)
if (cfg_index < 0)
{
ERR("Unable to find a matching config format.");
if ((stencil_bit >= 16) || (depth_size >= 32))
if ((stencil_bit > 8) || (depth_size > 24))
{
INF("Please note that Evas GL might not support 32-bit depth or "
"16-bit stencil buffers, so depth24, stencil8 are the maximum "
"recommended values.");
if (depth_size > 24)
{
depth_bit = 4; // see DEPTH_BIT_24
depth_size = 24;
}
if (stencil_bit > 8) stencil_bit = 8; // see STENCIL_BIT_8
DBG("Fallback to depth:%d, stencil:%d", depth_size, stencil_bit);
goto try_again;
}
return 0;
}