OrdinaryMagician/vkdoom_m
OrdinaryMagician/vkdoom_m
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- predefine the vertex data for the blend overlay which will never change throughout the lifetime of the GLRenderer object.

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This commit is contained in:
Christoph Oelckers 2016-08-08 14:24:48 +02:00
commit 8daaf61160
6 changed files with 24 additions and 18 deletions
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20
src/gl/data/gl_vertexbuffer.cpp
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@ -109,7 +109,7 @@ void FSimpleVertexBuffer::set(FSimpleVertex *verts, int count)
//
//==========================================================================
FFlatVertexBuffer::FFlatVertexBuffer()
FFlatVertexBuffer::FFlatVertexBuffer(int width, int height)
: FVertexBuffer(gl.buffermethod == BM_PERSISTENT)
{
if (gl.buffermethod == BM_PERSISTENT)
@ -125,7 +125,22 @@ FFlatVertexBuffer::FFlatVertexBuffer()
vbo_shadowdata.Reserve(BUFFER_SIZE);
map = new FFlatVertex[BUFFER_SIZE];
}
mNumReserved = mIndex = mCurIndex = 0;
mIndex = mCurIndex = 0;
mNumReserved = 8;
vbo_shadowdata.Resize(mNumReserved);
// the first quad is reserved for handling coordinates through uniforms.
vbo_shadowdata[0].Set(1, 0, 0, 0, 0);
vbo_shadowdata[1].Set(2, 0, 0, 0, 0);
vbo_shadowdata[2].Set(3, 0, 0, 0, 0);
vbo_shadowdata[3].Set(4, 0, 0, 0, 0);
// and the second one for the fullscreen quad used for blend overlays.
vbo_shadowdata[4].Set(0, 0, 0, 0, 0);
vbo_shadowdata[5].Set(0, (float)height, 0, 0, 0);
vbo_shadowdata[6].Set((float)width, 0, 0, 0, 0);
vbo_shadowdata[7].Set((float)width, (float)height, 0, 0, 0);
}
FFlatVertexBuffer::~FFlatVertexBuffer()
@ -350,7 +365,6 @@ void FFlatVertexBuffer::UpdatePlaneVertices(sector_t *sec, int plane)
void FFlatVertexBuffer::CreateVBO()
{
vbo_shadowdata.Resize(mNumReserved);
CreateFlatVBO();
mCurIndex = mIndex = vbo_shadowdata.Size();
memcpy(map, &vbo_shadowdata[0], vbo_shadowdata.Size() * sizeof(FFlatVertex));