Use GL_RGB as implementation color read format for GL_RGB565

dEQP is very unhappy (and asserts if built in debug) with this since it has the wrong channel count. Test: dEQP-GLES3.functional.read_pixels.alignment.* Change-Id: I35a46ba166d3964091d5e3b3066e3a593952c22a Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/36810Tested-by: Chris Forbes <chrisforbes@google.com> Presubmit-Ready: Chris Forbes <chrisforbes@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Use GL_RGB as implementation color read format for GL_RGB565
3044c241 · Chris Forbes · a9dc7707 · 3044c241
Commit 3044c241 authored Sep 30, 2019 by Chris Forbes
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Framebuffer.cpp src/OpenGL/libGLESv2/Framebuffer.cpp +1 -1

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--- a/src/OpenGL/libGLESv2/Framebuffer.cpp
+++ b/src/OpenGL/libGLESv2/Framebuffer.cpp
@@ -531,7 +531,7 @@ GLenum Framebuffer::getImplementationColorReadFormat() const
 		case GL_RGBA4:          return GL_RGBA;
 		case GL_RGB5_A1:        return GL_RGBA;
 		case GL_RGBA8:          return GL_RGBA;
-		case GL_RGB565:         return GL_RGBA;
+		case GL_RGB565:         return GL_RGB;
 		case GL_RGB8:           return GL_RGB;
 		case GL_R8:             return GL_RED;
 		case GL_RG8:            return GL_RG;