celisej567/mcpe
1
0
Fork 0
mirror of https://github.com/celisej567/mcpe.git synced 2026-09-23 20:09:46 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

OpenGL vertex buffer object emulation code. (#53)

Browse Source 
* * Make more GL vertex buffer related functions use the xgl prefix.

This allows me to later overload them in case I want to try to emulate vertex buffers in software.

* * Add (incomplete) GL VBO emulation. Works well enough but it's very slow.

* * Define USE_HARDWARE_GL_BUFFERS again.
This commit is contained in:
iProgramInCpp
2023-08-13 16:03:51 +03:00
committed by GitHub
parent eb64faa89f
commit f4855d38b6
6 changed files with 359 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
source/client/renderer/Tesselator.cpp
View File

@@ -162,31 +162,31 @@ void Tesselator::draw()
if (m_bHaveTex)
{
// it won't use address 12, because we've bound a buffer object
glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), (void*)offsetof(Vertex, m_u));
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
xglTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), (void*)offsetof(Vertex, m_u));
xglEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (m_bHaveColor)
{
// it won't use address 12, because we've bound a buffer object
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), (void*)offsetof(Vertex, m_color));
glEnableClientState(GL_COLOR_ARRAY);
xglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), (void*)offsetof(Vertex, m_color));
xglEnableClientState(GL_COLOR_ARRAY);
}
glVertexPointer(3, GL_FLOAT, sizeof(Vertex), (void*)offsetof(Vertex, m_x));
glEnableClientState(GL_VERTEX_ARRAY);
xglVertexPointer(3, GL_FLOAT, sizeof(Vertex), (void*)offsetof(Vertex, m_x));
xglEnableClientState(GL_VERTEX_ARRAY);
// if we want to draw quads, draw triangles actually
// otherwise, just pass the mode, it's fine
if (m_drawArraysMode == GL_QUADS)
glDrawArrays(GL_TRIANGLES, 0, field_4);
xglDrawArrays(GL_TRIANGLES, 0, field_4);
else
glDrawArrays(m_drawArraysMode, 0, field_4);
xglDrawArrays(m_drawArraysMode, 0, field_4);
glDisableClientState(GL_VERTEX_ARRAY);
xglDisableClientState(GL_VERTEX_ARRAY);
if (m_bHaveColor)
glDisableClientState(GL_COLOR_ARRAY);
xglDisableClientState(GL_COLOR_ARRAY);
if (m_bHaveTex)
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
xglDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
clear();