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0df813c3
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2018-07-12T12:52:06
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GLES1: GL_OES_draw_texture
BUG=angleproject:2306
This implements GL_OES_draw_texture using a few bits of new state
in the renderer and adding a code path for it in the shader, using
gl_VertexID to draw the quad backing the texture draw. This allows us
to avoid allocating a separate vertex array for the texture draw and
reuses the current shader as much as possible, plugging in to the
existing multitexturing pipeline.
- Add unit test and sample
- No new test expectations, but advertising GL_OES_draw_texture makes
the DrawTex GLES1 conformance test non-trivial and actually test
glDrawTex*.
Change-Id: I1485098249fe44d46a01cab4bb7b2c39d0492923
Reviewed-on: https://chromium-review.googlesource.com/1135930
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Lingfeng Yang <lfy@google.com>
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