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Prevent redundant calls to glEnable/DisableVertexAttribArray. This should hopefully fix a performance regression compared to 0.9.2 as well.

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Alex Szpakowski
2015-06-23 20:55:23 -03:00
parent e3ff0a0d63
commit ed3f419747
11 changed files with 94 additions and 115 deletions
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src/modules/graphics/opengl/Graphics.cpp
+3 -6
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@@ -1088,10 +1088,9 @@ void Graphics::point(float x, float y)
gl.prepareDraw();
gl.bindTexture(gl.getDefaultTexture());
glEnableVertexAttribArray(ATTRIB_POS);
gl.useVertexAttribArrays(ATTRIBFLAG_POS);
glVertexAttribPointer(ATTRIB_POS, 2, GL_FLOAT, GL_FALSE, 0, coord);
gl.drawArrays(GL_POINTS, 0, 1);
glDisableVertexAttribArray(ATTRIB_POS);
}
void Graphics::polyline(const float *coords, size_t count)
@@ -1247,10 +1246,9 @@ void Graphics::arc(DrawMode mode, float x, float y, float radius, float angle1,
gl.prepareDraw();
gl.bindTexture(gl.getDefaultTexture());
glEnableVertexAttribArray(ATTRIB_POS);
gl.useVertexAttribArrays(ATTRIBFLAG_POS);
glVertexAttribPointer(ATTRIB_POS, 2, GL_FLOAT, GL_FALSE, 0, coords);
gl.drawArrays(GL_TRIANGLE_FAN, 0, points + 2);
glDisableVertexAttribArray(ATTRIB_POS);
}
delete[] coords;
@@ -1273,10 +1271,9 @@ void Graphics::polygon(DrawMode mode, const float *coords, size_t count)
gl.prepareDraw();
gl.bindTexture(gl.getDefaultTexture());
glEnableVertexAttribArray(ATTRIB_POS);
gl.useVertexAttribArrays(ATTRIBFLAG_POS);
glVertexAttribPointer(ATTRIB_POS, 2, GL_FLOAT, GL_FALSE, 0, coords);
gl.drawArrays(GL_TRIANGLE_FAN, 0, (int)count/2-1); // opengl will close the polygon for us
glDisableVertexAttribArray(ATTRIB_POS);
}
}