diff options
Diffstat (limited to 'source/modules/asura-core/graphics/gpu_buffer.cpp')
| -rw-r--r-- | source/modules/asura-core/graphics/gpu_buffer.cpp | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/source/modules/asura-core/graphics/gpu_buffer.cpp b/source/modules/asura-core/graphics/gpu_buffer.cpp index c796bb0..6e6aead 100644 --- a/source/modules/asura-core/graphics/gpu_buffer.cpp +++ b/source/modules/asura-core/graphics/gpu_buffer.cpp @@ -34,19 +34,6 @@ namespace AsuraEngine mUsage = GL_STATIC_DRAW; break; } - gl.WipeError(); - glGenBuffers(1, &mBuffer); - if (mBuffer == 0) - throw Exception("OpenGL glGenBuffers failed."); - glBindBuffer(mTarget, mBuffer); - glBufferData(mTarget, size, NULL, mUsage); // ʼСΪsizeĻ - if (gl.HasError()) - throw Exception("OpenGL glBufferData failed. Errorcode=%d.", gl.GetError()); - glBindBuffer(mTarget, 0); -#if ASURA_DEBUG - mData = (byte*)malloc(size); - memset(mData, 0, size); -#endif mSize = size; } @@ -63,10 +50,33 @@ namespace AsuraEngine { if (data == nullptr) return false; - glBindBuffer(mTarget, mBuffer); + if (mBuffer == 0) + { + // ʼ + gl.WipeError(); + glGenBuffers(1, &mBuffer); + if (mBuffer == 0) + throw Exception("OpenGL glGenBuffers failed."); + glBindBuffer(mTarget, mBuffer); + glBufferData(mTarget, mSize, NULL, mUsage); // ʼСΪsizeĻ + if (gl.HasError()) + { + glBindBuffer(mTarget, 0); + throw Exception("OpenGL glBufferData failed. Errorcode=%d.", gl.GetError()); + } +#if ASURA_DEBUG + mData = (byte*)malloc(size); + memset(mData, 0, size); +#endif + } + else + glBindBuffer(mTarget, mBuffer); glBufferSubData(mTarget, offset, size, data); if (gl.HasError()) + { + glBindBuffer(mTarget, 0); throw Exception("OpenGL glBufferSubData failed. Errorcode=%d.", gl.GetError()); + } glBindBuffer(mTarget, 0); #if ASURA_DEBUG // һݣ |