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Optimized hardware buffers

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Former-commit-id: 59f96166fb259137b5e0445eb5faa0b912b0f29c
This commit is contained in:
Lynix
2014-04-20 22:32:09 +02:00
parent c45e22ff7d
commit 70e57a338f
2 changed files with 30 additions and 73 deletions
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18
src/Nazara/Renderer/OpenGL.cpp
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@@ -1863,10 +1863,11 @@ static_assert(sizeof(NzOpenGL::BufferLock)/sizeof(GLenum) == nzBufferAccess_Max+
GLenum NzOpenGL::BufferLockRange[] =
{
GL_MAP_INVALIDATE_BUFFER_BIT | GL_MAP_WRITE_BIT, // nzBufferAccess_DiscardAndWrite
GL_MAP_READ_BIT, // nzBufferAccess_ReadOnly
GL_MAP_READ_BIT | GL_MAP_WRITE_BIT, // nzBufferAccess_ReadWrite
GL_MAP_WRITE_BIT // nzBufferAccess_WriteOnly
// http://www.opengl.org/discussion_boards/showthread.php/170118-VBOs-strangely-slow?p=1198118#post1198118
GL_MAP_INVALIDATE_BUFFER_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_WRITE_BIT, // nzBufferAccess_DiscardAndWrite
GL_MAP_READ_BIT, // nzBufferAccess_ReadOnly
GL_MAP_READ_BIT | GL_MAP_WRITE_BIT, // nzBufferAccess_ReadWrite
GL_MAP_WRITE_BIT // nzBufferAccess_WriteOnly
};
static_assert(sizeof(NzOpenGL::BufferLockRange)/sizeof(GLenum) == nzBufferAccess_Max+1, "Buffer lock range array is incomplete");
@@ -1889,11 +1890,10 @@ static_assert(sizeof(NzOpenGL::BufferTargetBinding)/sizeof(GLenum) == nzBufferTy
GLenum NzOpenGL::BufferUsage[] =
{
// J'ai choisi DYNAMIC à la place de STREAM car DYNAMIC semble plus adapté au profil "une mise à jour pour quelques rendus"
// Ce qui est je pense le scénario qui arrivera le plus souvent (Prévoir une option pour permettre d'utiliser le STREAM_DRAW ?)
// Source: http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=160839
GL_DYNAMIC_DRAW, // nzBufferUsage_Dynamic
GL_STATIC_DRAW // nzBufferUsage_Static
// D'après la documentation, GL_STREAM_DRAW semble être plus adapté à notre cas (ratio modification/rendu 1:2-3)
// Source: http://www.opengl.org/sdk/docs/man/html/glBufferData.xhtml
GL_STREAM_DRAW, // nzBufferUsage_Dynamic
GL_STATIC_DRAW // nzBufferUsage_Static
};
static_assert(sizeof(NzOpenGL::BufferUsage)/sizeof(GLenum) == nzBufferUsage_Max+1, "Buffer usage array is incomplete");