void VertexBuilder::SetVertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer)
{
// Currently only 2 and 3 are valid sizes and GL_FLOAT is the only supported pointer type.
gl2dxAssert(size == 2 || size == 3, "Only 2 and 3 are valid for size");
gl2dxAssert(type == GL_FLOAT, "GL_FLOAT is the only supported vertex pointer type");
_vectorPointerSize = size;
_vectorPointerType = type;
_vectorPointerStride = stride;
_vectorPointer = (GLbyte*)pointer;
_vectorPointerMemberSize = sizeof(GLfloat);
}
void OpenGL::PopMatrix()
{
gl2dxAssert(_matrices.size() > 0, "Matrix stack is empty in PopMatrix");
auto matrix = _matrices.top();
_matrices.pop();
delete matrix;
}
void OpenGL::DrawBatch()
{
if (_currentBatchVertex > 0)
{
gl2dxAssert(_currentBatchVertex < _maxVertices, "Exceeded max vertices");
if (_batchEnableTexture2D && _batchCurrentTextureId > 0)
{
ID3D11ShaderResourceView* texture = _textures[_batchCurrentTextureId];
// Set shader texture resource in the pixel shader.
_context->PSSetShader(_pixelShaderTexture, nullptr, 0);
_context->PSSetShaderResources(0, 1, &texture);
}
else
{
_context->PSSetShader(_pixelShaderColor, nullptr, 0);
}
D3D11_MAPPED_SUBRESOURCE mappedResource;
D3D11_MAP mapType = D3D11_MAP::D3D11_MAP_WRITE_DISCARD;
auto hr = _context->Map(_vertexBuffer, 0, mapType, 0, &mappedResource);
if (SUCCEEDED(hr))
{
OpenGLVertex *pData = reinterpret_cast<OpenGLVertex *>(mappedResource.pData);
memcpy(pData, _batchVertices, sizeof(OpenGLVertex) * _currentBatchVertex);
_context->Unmap(_vertexBuffer, 0);
}
_context->Draw(_currentBatchVertex, 0);
_currentBatchVertex = 0;
}
}
void VertexBuilder::SetColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer)
{
gl2dxAssert(type == GL_UNSIGNED_BYTE, "GL_UNSIGNED_BYTE is the only supported glColorPointer mode");
_colorPointerSize = size;
_colorPointerType = type;
_colorPointerStride = stride;
_colorPointer = (GLubyte*)pointer;
}
