Drawing without current program is not an error.

The spec states that "If UseProgram is called with program set to zero, then there is no current program object, and the results of vertex and fragment shader execution are undefined. However, this is not an error." Fixes all failures in: dEQP-GLES3.functional.negative_api.vertex_array.* Change-Id: Ia5fbb22a9447b299665db29fc1f564f6de4f202d Reviewed-on: https://swiftshader-review.googlesource.com/14408Tested-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Drawing without current program is not an error.
6372aceb · Nicolas Capens · Nicolas Capens · e4a88b91 · 6372aceb · 6372aceb
Commit 6372aceb authored Nov 29, 2017 by Nicolas Capens Committed by Nicolas Capens Nov 30, 2017
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Context.cpp src/OpenGL/libGL/Context.cpp +1 -1

Context.cpp src/OpenGL/libGLESv2/Context.cpp +2 -2

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--- a/src/OpenGL/libGL/Context.cpp
+++ b/src/OpenGL/libGL/Context.cpp
@@ -2477,7 +2477,7 @@ void Context::drawElements(GLenum mode, GLsizei count, GLenum type, const void *
 {
 	if(!mState.currentProgram)
 	{
-		return error(GL_INVALID_OPERATION);
+		return;
 	}
 	if(!indices && !mState.elementArrayBuffer)

--- a/src/OpenGL/libGLESv2/Context.cpp
+++ b/src/OpenGL/libGLESv2/Context.cpp
@@ -3467,7 +3467,7 @@ void Context::drawArrays(GLenum mode, GLint first, GLsizei count, GLsizei instan
 {
 	if(!mState.currentProgram)
 	{
-		return error(GL_INVALID_OPERATION);
+		return;
 	}
 	sw::DrawType primitiveType;
@@ -3523,7 +3523,7 @@ void Context::drawElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
 {
 	if(!mState.currentProgram)
 	{
-		return error(GL_INVALID_OPERATION);
+		return;
 	}
 	if(!indices && !getCurrentVertexArray()->getElementArrayBuffer())