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SUPPORT_OPENGL_ES - fix for modify vertex buffer #31

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SUPPORT_OPENGL_ES - fix for modify vertex buffer #31

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28 changes: 23 additions & 5 deletions PluginSource/source/RenderAPI_OpenGLCoreES.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,12 @@ class RenderAPI_OpenGLCoreES : public RenderAPI
{
public:
RenderAPI_OpenGLCoreES(UnityGfxRenderer apiType);
virtual ~RenderAPI_OpenGLCoreES() { }
virtual ~RenderAPI_OpenGLCoreES()
{
# if SUPPORT_OPENGL_ES
if(m_VertexBufferPtr!=nullptr) free(m_VertexBufferPtr);
# endif
}

virtual void ProcessDeviceEvent(UnityGfxDeviceEventType type, IUnityInterfaces* interfaces);

Expand All @@ -64,6 +69,10 @@ class RenderAPI_OpenGLCoreES : public RenderAPI
GLuint m_VertexBuffer;
int m_UniformWorldMatrix;
int m_UniformProjMatrix;
# if SUPPORT_OPENGL_ES
void* m_VertexBufferPtr;
size_t m_VertexBufferPtrSize;
# endif
};


Expand Down Expand Up @@ -288,13 +297,20 @@ void RenderAPI_OpenGLCoreES::EndModifyTexture(void* textureHandle, int textureWi

void* RenderAPI_OpenGLCoreES::BeginModifyVertexBuffer(void* bufferHandle, size_t* outBufferSize)
{
# if SUPPORT_OPENGL_ES
return 0;
# else
glBindBuffer(GL_ARRAY_BUFFER, (GLuint)(size_t)bufferHandle);
GLint size = 0;
glGetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_SIZE, &size);
*outBufferSize = size;
# if SUPPORT_OPENGL_ES
if(m_VertexBufferPtrSize!=size && m_VertexBufferPtr!=nullptr)
{
free(m_VertexBufferPtr);
m_VertexBufferPtr=nullptr;
}
m_VertexBufferPtr = (m_VertexBufferPtr==nullptr)?malloc(size):m_VertexBufferPtr;
m_VertexBufferPtrSize = size;
return m_VertexBufferPtr;
# else
void* mapped = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
return mapped;
# endif
Expand All @@ -303,7 +319,9 @@ void* RenderAPI_OpenGLCoreES::BeginModifyVertexBuffer(void* bufferHandle, size_t

void RenderAPI_OpenGLCoreES::EndModifyVertexBuffer(void* bufferHandle)
{
# if !SUPPORT_OPENGL_ES
# if SUPPORT_OPENGL_ES
glBufferSubData(GL_ARRAY_BUFFER,0,m_VertexBufferPtrSize,m_VertexBufferPtr);
# else
glBindBuffer(GL_ARRAY_BUFFER, (GLuint)(size_t)bufferHandle);
glUnmapBuffer(GL_ARRAY_BUFFER);
# endif
Expand Down