Method Render

BeefySysLib/platform/sdl/GLRenderDevice.cpp:249–289

};

void GLDrawBatch::Render(RenderDevice* renderDevice, RenderWindow* renderWindow)
{
	if (mIdxIdx == 0)
		return;

    gBFDrawBatchCount++;

	GLRenderDevice* glRenderDevice = (GLRenderDevice*) gBFApp->mRenderDevice;
	GLShader* curShader = (GLShader*)mRenderState->mShader;

	if (glRenderDevice->mGLVAO == 0)
	{
		bf_glGenVertexArrays(1, &glRenderDevice->mGLVAO);
		bf_glBindVertexArray(glRenderDevice->mGLVAO);

		bf_glGenBuffers(1, &glRenderDevice->mGLVertexBuffer);
		bf_glGenBuffers(1, &glRenderDevice->mGLIndexBuffer);
	}

	auto glVertices = (GLVertex3D*)mVertices;

	bf_glBindBuffer(GL_ARRAY_BUFFER, glRenderDevice->mGLVertexBuffer);
	bf_glBufferData(GL_ARRAY_BUFFER, mVtxIdx * sizeof(GLVertex3D), mVertices, GL_STREAM_DRAW);

	bf_glEnableVertexAttribArray(curShader->mAttribPosition);
	bf_glVertexAttribPointer(curShader->mAttribPosition, 3, GL_FLOAT, GL_FALSE, sizeof(GLVertex3D), (void*)offsetof(GLVertex3D, x));
	bf_glEnableVertexAttribArray(curShader->mAttribTexCoord0);
	bf_glVertexAttribPointer(curShader->mAttribTexCoord0, 2, GL_FLOAT, GL_FALSE, sizeof(GLVertex3D), (void*)offsetof(GLVertex3D, u));
	bf_glEnableVertexAttribArray(curShader->mAttribColor);
	bf_glVertexAttribPointer(curShader->mAttribColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(GLVertex3D), (void*)offsetof(GLVertex3D, color));

	if (mRenderState != renderDevice->mPhysRenderState)
		renderDevice->PhysSetRenderState(mRenderState);

	bf_glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, glRenderDevice->mGLIndexBuffer);
	bf_glBufferData(GL_ELEMENT_ARRAY_BUFFER, mIdxIdx * sizeof(int16), mIndices, GL_STREAM_DRAW);
	bf_glDrawElements(GL_TRIANGLES, mIdxIdx, GL_UNSIGNED_SHORT, NULL);

    bf_glBufferData(GL_ELEMENT_ARRAY_BUFFER, 0, NULL, GL_STREAM_DRAW);
    bf_glBufferData(GL_ARRAY_BUFFER, 0, NULL, GL_STREAM_DRAW);
}

GLDrawLayer::GLDrawLayer()
{