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044e784072
gl4es feature detection does not work reliably with EGL.
If a context already exists, gl4es can instead reliably detect
the underlying GLES features from the context itself.
This requires gl4es to be configured with:
-DNOEGL=ON -DNO_LOADER=ON -DNO_INIT_CONSTRUCTOR=ON
This also requires gl4es to have this fix: https://github.com/ptitSeb/gl4es/pull/271
36 lines
814 B
C++
36 lines
814 B
C++
// EGL does not work reliably for feature detection.
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// Instead, we initialize gl4es manually.
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#ifdef OPENMW_GL4ES_MANUAL_INIT
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#include "gl4es_init.h"
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// For glHint
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#include <GL/gl.h>
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extern "C" {
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#include <gl4es/gl4esinit.h>
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#include <gl4es/gl4eshint.h>
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static SDL_Window *gWindow;
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void openmw_gl4es_GetMainFBSize(int *width, int *height)
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{
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SDL_GetWindowSize(gWindow, width, height);
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}
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void openmw_gl4es_init(SDL_Window *window)
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{
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gWindow = window;
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set_getprocaddress(SDL_GL_GetProcAddress);
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set_getmainfbsize(openmw_gl4es_GetMainFBSize);
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initialize_gl4es();
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// merge glBegin/glEnd in beams and console
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glHint(GL_BEGINEND_HINT_GL4ES, 1);
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// dxt unpacked to 16-bit looks ugly
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glHint(GL_AVOID16BITS_HINT_GL4ES, 1);
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}
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} // extern "C"
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#endif // OPENMW_GL4ES_MANUAL_INIT
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