forked from enlightenment/efl
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.
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@ -1236,6 +1236,7 @@ _internal_config_set(void *eng_data, EVGL_Surface *sfc, Evas_GL_Config *cfg)
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if (cfg->multisample_bits)
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msaa_samples = evgl_engine->caps.msaa_samples[cfg->multisample_bits-1];
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try_again:
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// Run through all the available formats and choose the first match
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for (i = 0; i < evgl_engine->caps.num_fbo_fmts; ++i)
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{
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@ -1302,11 +1303,19 @@ _internal_config_set(void *eng_data, EVGL_Surface *sfc, Evas_GL_Config *cfg)
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if (cfg_index < 0)
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{
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ERR("Unable to find a matching config format.");
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if ((stencil_bit >= 16) || (depth_size >= 32))
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if ((stencil_bit > 8) || (depth_size > 24))
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{
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INF("Please note that Evas GL might not support 32-bit depth or "
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"16-bit stencil buffers, so depth24, stencil8 are the maximum "
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"recommended values.");
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if (depth_size > 24)
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{
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depth_bit = 4; // see DEPTH_BIT_24
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depth_size = 24;
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}
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if (stencil_bit > 8) stencil_bit = 8; // see STENCIL_BIT_8
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DBG("Fallback to depth:%d, stencil:%d", depth_size, stencil_bit);
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goto try_again;
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}
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return 0;
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}
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