mirror of https://github.com/axmolengine/axmol.git
102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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#include "EffekseerRendererGL.IndexBuffer.h"
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#include "EffekseerRendererGL.GLExtension.h"
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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namespace EffekseerRendererGL
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{
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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IndexBuffer::IndexBuffer(const Backend::GraphicsDeviceRef& graphicsDevice, GLuint buffer, int maxCount, bool isDynamic, int32_t stride)
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: DeviceObject(graphicsDevice.Get())
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, IndexBufferBase(maxCount, isDynamic)
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, m_buffer(buffer)
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{
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stride_ = stride;
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m_resource = new uint8_t[m_indexMaxCount * stride_];
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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IndexBuffer::~IndexBuffer()
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{
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delete[] m_resource;
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GLExt::glDeleteBuffers(1, &m_buffer);
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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IndexBuffer* IndexBuffer::Create(const Backend::GraphicsDeviceRef& graphicsDevice, int maxCount, bool isDynamic, int32_t stride)
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{
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GLuint ib;
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GLExt::glGenBuffers(1, &ib);
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return new IndexBuffer(graphicsDevice, ib, maxCount, isDynamic, stride);
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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void IndexBuffer::OnLostDevice()
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{
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GLExt::glDeleteBuffers(1, &m_buffer);
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m_buffer = 0;
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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void IndexBuffer::OnResetDevice()
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{
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if (IsValid())
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return;
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GLuint ib;
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GLExt::glGenBuffers(1, &ib);
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m_buffer = ib;
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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void IndexBuffer::Lock()
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{
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assert(!m_isLock);
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m_isLock = true;
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m_indexCount = 0;
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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void IndexBuffer::Unlock()
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{
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assert(m_isLock);
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GLExt::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_buffer);
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GLExt::glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_indexCount * stride_, m_resource, GL_DYNAMIC_DRAW);
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GLExt::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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m_isLock = false;
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}
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bool IndexBuffer::IsValid()
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{
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return m_buffer != 0;
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}
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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} // namespace EffekseerRendererGL
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//-----------------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------------
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