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vtdec: add support for zerocopy decoding with GLES 3.x

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It seems that Red/RG textures aren't supported anymore for zerocopy decoding
with GLES 3.x.  Instead use Luminance/Luminance Alpha textures which are.
This commit is contained in:
Matthew Waters 2016-06-25 00:05:37 +10:00
parent 989200820d
commit 9a325f4a09
1 changed files with 14 additions and 2 deletions
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16
sys/applemedia/videotexturecache.m
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@ -182,8 +182,15 @@ _do_get_gl_buffer (GstGLContext * context, ContextThreadData * data)
case GST_VIDEO_FORMAT_NV12: {
GstVideoGLTextureType textype;
GLenum texifmt, texfmt;
gint gl_major;
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 0);
gst_gl_context_get_gl_version (context, &gl_major, NULL);
if (gl_major >= 3) {
/* apple went backwards when choosing a pixel format for this */
textype = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
} else {
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 0);
}
texifmt = gst_gl_format_from_gl_texture_type (textype);
texfmt = gst_gl_sized_gl_format_from_gl_format_type (cache->ctx, texifmt, GL_UNSIGNED_BYTE);
@ -206,7 +213,12 @@ _do_get_gl_buffer (GstGLContext * context, ContextThreadData * data)
(GstGLAllocationParams *) params));
gst_gl_allocation_params_free ((GstGLAllocationParams *) params);
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 1);
if (gl_major >= 3) {
/* apple went backwards when choosing a pixel format for this */
textype = GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
} else {
textype = gst_gl_texture_type_from_format (cache->ctx, GST_VIDEO_FORMAT_NV12, 0);
}
texifmt = gst_gl_format_from_gl_texture_type (textype);
texfmt = gst_gl_sized_gl_format_from_gl_format_type (cache->ctx, texifmt, GL_UNSIGNED_BYTE);