OrdinaryMagician/vkdoom_m
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- reactivate compatibility profile so that immediate mode drawing can be used on older hardware not supporting persistently mapped buffers.

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- reactivate alpha testing per fixed function pipeline
- use the 'modern' way to define clip planes (GL_CLIP_DISTANCE). This is far more portable than the old glClipPlane method and a lot more robust than checking this in the fragment shader.
This commit is contained in:
Christoph Oelckers 2014-07-17 02:37:18 +02:00
commit eb9d2d9917
13 changed files with 110 additions and 48 deletions
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35
src/gl/data/gl_vertexbuffer.cpp
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@ -136,24 +136,29 @@ FFlatVertexBuffer::~FFlatVertexBuffer()
//
//==========================================================================
CVAR(Bool, gl_testbuffer, false, 0)
CUSTOM_CVAR(Int, gl_rendermethod, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
}
void FFlatVertexBuffer::ImmRenderBuffer(unsigned int primtype, unsigned int offset, unsigned int count)
{
#if 0
if (!gl_testbuffer) // todo: remove the immediate mode calls once the uniform array method has been tested.
switch (gl_rendermethod)
{
glBegin(primtype);
for (unsigned int i = 0; i < count; i++)
case 0:
#ifndef CORE_PROFILE
if (!(gl.flags & RFL_COREPROFILE))
{
glTexCoord2fv(&map[offset + i].u);
glVertex3fv(&map[offset + i].x);
glBegin(primtype);
for (unsigned int i = 0; i < count; i++)
{
glVertexAttrib2fv(VATTR_TEXCOORD, &map[offset + i].u);
glVertexAttrib3fv(VATTR_VERTEX, &map[offset + i].x);
}
glEnd();
break;
}
glEnd();
}
else
#endif
{
case 1:
if (count > 20)
{
int start = offset;
@ -186,6 +191,14 @@ void FFlatVertexBuffer::ImmRenderBuffer(unsigned int primtype, unsigned int offs
glUniform1fv(GLRenderer->mShaderManager->GetActiveShader()->fakevb_index, count * 5, &map[offset].x);
glDrawArrays(primtype, 0, count);
}
break;
case 2:
// glBufferSubData
case 3:
// glMapBufferRange
break;
}
}