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- use glMapBuffer instead of glMapBufferRange on older hardware.

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This commit is contained in:
Christoph Oelckers 2016-05-04 19:16:07 +02:00
parent 317730584f
commit 7b65e6d424
1 changed files with 8 additions and 2 deletions
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6
src/gl/models/gl_models.cpp
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@ -170,7 +170,10 @@ FModelVertex *FModelVertexBuffer::LockVertexBuffer(unsigned int size)
{ {
glBindBuffer(GL_ARRAY_BUFFER, vbo_id); glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glBufferData(GL_ARRAY_BUFFER, size * sizeof(FModelVertex), nullptr, GL_STATIC_DRAW); glBufferData(GL_ARRAY_BUFFER, size * sizeof(FModelVertex), nullptr, GL_STATIC_DRAW);
if (gl.version >= 3.0)
return (FModelVertex*)glMapBufferRange(GL_ARRAY_BUFFER, 0, size * sizeof(FModelVertex), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT); return (FModelVertex*)glMapBufferRange(GL_ARRAY_BUFFER, 0, size * sizeof(FModelVertex), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
else
return (FModelVertex*)glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
} }
else else
{ {
@ -208,7 +211,10 @@ unsigned int *FModelVertexBuffer::LockIndexBuffer(unsigned int size)
{ {
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_id); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_id);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, size * sizeof(unsigned int), NULL, GL_STATIC_DRAW); glBufferData(GL_ELEMENT_ARRAY_BUFFER, size * sizeof(unsigned int), NULL, GL_STATIC_DRAW);
if (gl.version >= 3.0)
return (unsigned int*)glMapBufferRange(GL_ELEMENT_ARRAY_BUFFER, 0, size * sizeof(unsigned int), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT); return (unsigned int*)glMapBufferRange(GL_ELEMENT_ARRAY_BUFFER, 0, size * sizeof(unsigned int), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
else
return (unsigned int*)glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
} }
else else
{ {