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Use RGBA8 for FBO texture internal format on GLES3

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GLES3 supports GL_RGBA8 as an internal format for textures.

Using the sized format (RGBA8 instead of RGBA) allows more flexibility. In my case I am trying to use glCopyImageSubData and it only works on textures with sized internal formats.
This commit is contained in:
Logan McNaughton 2016-12-07 11:22:24 -07:00 committed by GitHub
parent 3600e29bbb
commit b275b2e113
1 changed files with 5 additions and 2 deletions
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7
gfx/drivers/gl.c
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@ -642,7 +642,7 @@ static void gl_init_textures(gl_t *gl, const video_info_t *video)
texture_fmt = gl->texture_fmt;
#endif
#ifdef HAVE_OPENGLES2
#ifdef HAVE_OPENGLES
/* GLES is picky about which format we use here.
* Without extensions, we can *only* render to 16-bit FBOs. */
@ -650,7 +650,10 @@ static void gl_init_textures(gl_t *gl, const video_info_t *video)
{
if (gl_check_capability(GL_CAPS_ARGB8))
{
internal_fmt = GL_RGBA;
if (gl_check_capability(GL_CAPS_GLES3_SUPPORTED))
internal_fmt = GL_RGBA8_OES;
else
internal_fmt = GL_RGBA;
texture_type = GL_RGBA;
texture_fmt = GL_UNSIGNED_BYTE;
}