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- got rid of VAO's. they have no impact on performance and are a general nuisance if some render paths cannot use them.

Browse source 
- cleaned up gl_interface and removed gl.compatibility.
This commit is contained in:
Christoph Oelckers 2016-04-26 16:26:34 +02:00
parent f066457a48
commit 3b1500438d
11 changed files with 82 additions and 56 deletions
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50
src/gl/data/gl_vertexbuffer.cpp
View file

@ -57,12 +57,10 @@
//
//==========================================================================
FVertexBuffer::FVertexBuffer()
FVertexBuffer::FVertexBuffer(bool wantbuffer)
{
vao_id = vbo_id = 0;
glGenBuffers(1, &vbo_id);
glGenVertexArrays(1, &vao_id);
vbo_id = 0;
if (wantbuffer) glGenBuffers(1, &vbo_id);
}
FVertexBuffer::~FVertexBuffer()
@ -71,15 +69,6 @@ FVertexBuffer::~FVertexBuffer()
{
glDeleteBuffers(1, &vbo_id);
}
if (vao_id != 0)
{
glDeleteVertexArrays(1, &vao_id);
}
}
void FVertexBuffer::BindVBO()
{
glBindVertexArray(vao_id);
}
//==========================================================================
@ -89,7 +78,7 @@ void FVertexBuffer::BindVBO()
//==========================================================================
FFlatVertexBuffer::FFlatVertexBuffer()
: FVertexBuffer()
: FVertexBuffer(!!(gl.flags & RFL_BUFFER_STORAGE))
{
if (gl.flags & RFL_BUFFER_STORAGE)
{
@ -97,17 +86,10 @@ FFlatVertexBuffer::FFlatVertexBuffer()
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glBufferStorage(GL_ARRAY_BUFFER, bytesize, NULL, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
map = (FFlatVertex*)glMapBufferRange(GL_ARRAY_BUFFER, 0, bytesize, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
glBindVertexArray(vao_id);
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glVertexAttribPointer(VATTR_VERTEX, 3,GL_FLOAT, false, sizeof(FFlatVertex), &VTO->x);
glVertexAttribPointer(VATTR_TEXCOORD, 2,GL_FLOAT, false, sizeof(FFlatVertex), &VTO->u);
glEnableVertexAttribArray(VATTR_VERTEX);
glEnableVertexAttribArray(VATTR_TEXCOORD);
glBindVertexArray(0);
}
else
{
// The fallback path uses immediate mode rendering and does not set up an actual vertex buffer
vbo_shadowdata.Reserve(BUFFER_SIZE);
map = &vbo_shadowdata[0];
}
@ -124,6 +106,26 @@ FFlatVertexBuffer::~FFlatVertexBuffer()
}
}
void FFlatVertexBuffer::BindVBO()
{
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
if (vbo_id != 0) // set this up only if there is an actual buffer.
{
glVertexAttribPointer(VATTR_VERTEX, 3, GL_FLOAT, false, sizeof(FFlatVertex), &VTO->x);
glVertexAttribPointer(VATTR_TEXCOORD, 2, GL_FLOAT, false, sizeof(FFlatVertex), &VTO->u);
glEnableVertexAttribArray(VATTR_VERTEX);
glEnableVertexAttribArray(VATTR_TEXCOORD);
}
else
{
glDisableVertexAttribArray(VATTR_VERTEX);
glDisableVertexAttribArray(VATTR_TEXCOORD);
}
glDisableVertexAttribArray(VATTR_COLOR);
glDisableVertexAttribArray(VATTR_VERTEX2);
}
//==========================================================================
//
// immediate mode fallback for drivers without GL_ARB_buffer_storage
@ -138,7 +140,7 @@ void FFlatVertexBuffer::ImmRenderBuffer(unsigned int primtype, unsigned int offs
// this will only get called if we can't acquire a persistently mapped buffer.
#ifndef CORE_PROFILE
glBegin(primtype);
if (gl.compatibility > CMPT_GL2)
if (gl.glslversion > 0)
{
for (unsigned int i = 0; i < count; i++)
{

10
src/gl/data/gl_vertexbuffer.h
View file

@ -15,12 +15,11 @@ class FVertexBuffer
{
protected:
unsigned int vbo_id;
unsigned int vao_id;
public:
FVertexBuffer();
FVertexBuffer(bool wantbuffer = true);
virtual ~FVertexBuffer();
void BindVBO();
virtual void BindVBO() = 0;
};
struct FFlatVertex
@ -37,6 +36,7 @@ struct FFlatVertex
u = uu;
v = vv;
}
void BindVBO();
};
#define VTO ((FFlatVertex*)NULL)
@ -62,6 +62,8 @@ public:
FFlatVertexBuffer();
~FFlatVertexBuffer();
void BindVBO();
void CreateVBO();
void CheckUpdate(sector_t *sector);
@ -165,6 +167,7 @@ public:
FSkyVertexBuffer();
virtual ~FSkyVertexBuffer();
void RenderDome(FMaterial *tex, int mode);
void BindVBO();
};
@ -208,6 +211,7 @@ public:
void UnlockIndexBuffer();
unsigned int SetupFrame(unsigned int frame1, unsigned int frame2);
void BindVBO();
};
#define VMO ((FModelVertex*)NULL)

15
src/gl/models/gl_models.cpp
View file

@ -117,20 +117,27 @@ void gl_FlushModels()
FModelVertexBuffer::FModelVertexBuffer(bool needindex)
{
glBindVertexArray(vao_id);
ibo_id = 0;
if (needindex)
{
glGenBuffers(1, &ibo_id);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_id);
}
}
//===========================================================================
//
//
//
//===========================================================================
void FModelVertexBuffer::BindVBO()
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_id);
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glEnableVertexAttribArray(VATTR_VERTEX);
glEnableVertexAttribArray(VATTR_TEXCOORD);
glEnableVertexAttribArray(VATTR_VERTEX2);
glBindVertexArray(0);
glDisableVertexAttribArray(VATTR_COLOR);
}
//===========================================================================

15
src/gl/renderer/gl_renderer.cpp
View file

@ -103,6 +103,14 @@ void gl_FlushModels();
void FGLRenderer::Initialize()
{
// Only needed for the core profile, because someone decided it was a good idea to remove the default VAO.
if (gl.version >= 4.0)
{
glGenVertexArrays(1, &mVAOID);
glBindVertexArray(mVAOID);
}
else mVAOID = 0;
glpart2 = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/glpart2.png"), FTexture::TEX_MiscPatch);
glpart = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/glpart.png"), FTexture::TEX_MiscPatch);
mirrortexture = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/mirror.png"), FTexture::TEX_MiscPatch);
@ -113,6 +121,7 @@ void FGLRenderer::Initialize()
else mLights = NULL;
gl_RenderState.SetVertexBuffer(mVBO);
mFBID = 0;
SetupLevel();
mShaderManager = new FShaderManager;
mSamplerManager = new FSamplerManager;
@ -133,6 +142,12 @@ FGLRenderer::~FGLRenderer()
if (glpart) delete glpart;
if (mirrortexture) delete mirrortexture;
if (mFBID != 0) glDeleteFramebuffers(1, &mFBID);
if (mVAOID != 0)
{
glBindVertexArray(0);
glDeleteVertexArrays(1, &mVAOID);
}
}
//===========================================================================

1
src/gl/renderer/gl_renderer.h
View file

@ -69,6 +69,7 @@ public:
FSamplerManager *mSamplerManager;
int gl_spriteindex;
unsigned int mFBID;
unsigned int mVAOID;
FTexture *glpart2;
FTexture *glpart;

2
src/gl/renderer/gl_renderstate.cpp
View file

@ -279,7 +279,7 @@ void FRenderState::Apply()
else mVertexBuffer->BindVBO();
mCurrentVertexBuffer = mVertexBuffer;
}
if (gl.compatibility > CMPT_GL2)
if (gl.glslversion > 0)
{
ApplyShader();
}

15
src/gl/scene/gl_skydome.cpp
View file

@ -78,8 +78,14 @@ extern int skyfog;
FSkyVertexBuffer::FSkyVertexBuffer()
{
CreateDome();
}
glBindVertexArray(vao_id);
FSkyVertexBuffer::~FSkyVertexBuffer()
{
}
void FSkyVertexBuffer::BindVBO()
{
glBindBuffer(GL_ARRAY_BUFFER, vbo_id);
glVertexAttribPointer(VATTR_VERTEX, 3, GL_FLOAT, false, sizeof(FSkyVertex), &VSO->x);
glVertexAttribPointer(VATTR_TEXCOORD, 2, GL_FLOAT, false, sizeof(FSkyVertex), &VSO->u);
@ -87,12 +93,7 @@ FSkyVertexBuffer::FSkyVertexBuffer()
glEnableVertexAttribArray(VATTR_VERTEX);
glEnableVertexAttribArray(VATTR_TEXCOORD);
glEnableVertexAttribArray(VATTR_COLOR);
glBindVertexArray(0);
}
FSkyVertexBuffer::~FSkyVertexBuffer()
{
glDisableVertexAttribArray(VATTR_VERTEX2);
}
//-----------------------------------------------------------------------------

10
src/gl/shaders/gl_shader.cpp
View file

@ -129,7 +129,7 @@ bool FShader::Load(const char * name, const char * vert_prog_lump, const char *
if (gl.lightmethod == LM_SOFTWARE)
{
if (gl.compatibility >= CMPT_GL3)
if (gl.glslversion >= 1.3)
{
vp_comb = "#version 130\n";
}
@ -201,7 +201,7 @@ bool FShader::Load(const char * name, const char * vert_prog_lump, const char *
}
}
if (gl.compatibility < CMPT_GL3)
if (gl.glslversion < 1.3)
{
PatchVertShader(vp_comb);
PatchFragShader(fp_comb);
@ -439,7 +439,7 @@ static const FEffectShader effectshaders[]=
FShaderManager::FShaderManager()
{
if (gl.compatibility > CMPT_GL2) CompileShaders();
if (gl.glslversion > 0) CompileShaders();
}
//==========================================================================
@ -450,7 +450,7 @@ FShaderManager::FShaderManager()
FShaderManager::~FShaderManager()
{
if (gl.compatibility > CMPT_GL2) Clean();
if (gl.glslversion > 0) Clean();
}
//==========================================================================
@ -592,7 +592,7 @@ EXTERN_CVAR(Int, gl_fuzztype)
void FShaderManager::ApplyMatrices(VSMatrix *proj, VSMatrix *view)
{
if (gl.compatibility == CMPT_GL2)
if (gl.glslversion == 0)
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(proj->get());

17
src/gl/system/gl_interface.cpp
View file

@ -158,25 +158,24 @@ void gl_LoadExtensions()
if (CheckExtension("GL_ARB_texture_compression")) gl.flags |= RFL_TEXTURE_COMPRESSION;
if (CheckExtension("GL_EXT_texture_compression_s3tc")) gl.flags |= RFL_TEXTURE_COMPRESSION_S3TC;
if (Args->CheckParm("-noshader"))
if (Args->CheckParm("-noshader") || gl.glslversion < 1.2f)
{
gl.version = 2.1f;
gl.compatibility = CMPT_GL2; // force the low end path
gl.version = 2.11f;
gl.glslversion = 0;
}
else if (gl.version < 3.0f)
{
if (CheckExtension("GL_NV_GPU_shader4") || CheckExtension("GL_EXT_GPU_shader4")) gl.compatibility = CMPT_GL2_SHADER; // for pre-3.0 drivers that support capable hardware. Needed for Apple.
else gl.compatibility = CMPT_GL2;
if (CheckExtension("GL_NV_GPU_shader4") || CheckExtension("GL_EXT_GPU_shader4")) gl.glslversion = 1.21f; // for pre-3.0 drivers that support capable hardware. Needed for Apple.
else gl.glslversion = 0;
}
else if (gl.version < 4.f)
{
if (strstr(gl.vendorstring, "ATI Tech"))
{
gl.version = 2.1f;
gl.compatibility = CMPT_GL2_SHADER; // most of these drivers are irreperably broken with GLSL 1.3 and higher.
gl.version = 2.11f;
gl.glslversion = 1.21f;
gl.lightmethod = LM_SOFTWARE; // do not use uniform buffers with the fallback shader, it may cause problems.
}
else gl.compatibility = CMPT_GL3;
}
else
{
@ -194,13 +193,11 @@ void gl_LoadExtensions()
}
}
gl.flags |= RFL_BUFFER_STORAGE;
gl.compatibility = CMPT_GL4;
gl.lightmethod = LM_DIRECT;
}
else
{
gl.version = 3.3f;
gl.compatibility = CMPT_GL3;
}
}

1
src/gl/system/gl_interface.h
View file

@ -48,7 +48,6 @@ struct RenderContext
unsigned int maxuniformblock;
unsigned int uniformblockalignment;
int lightmethod;
int compatibility;
float version;
float glslversion;
int max_texturesize;

2
src/gl/textures/gl_hqresize.cpp
View file

@ -264,7 +264,7 @@ unsigned char *gl_CreateUpsampledTextureBuffer ( const FTexture *inputTexture, u
return inputBuffer;
// [BB] Don't upsample non-shader handled warped textures. Needs too much memory and time
if (gl.compatibility == CMPT_GL2 && inputTexture->bWarped)
if (gl.glslversion == 0 && inputTexture->bWarped)
return inputBuffer;
// already scaled?