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Micro-optimization

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This commit is contained in:
Kovid Goyal 2016-10-28 12:16:49 +05:30
parent 88a9d8fb8a
commit d00e03ca03
1 changed files with 2 additions and 4 deletions
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6
kitty/develop_gl.py
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@ -17,12 +17,10 @@ uniform vec2 sprite_layout; // dx, dy
uniform usamplerBuffer sprite_map; // gl_InstanceID -> x, y, z
out vec3 sprite_pos;
const uvec2 pos_map[] = uvec2[6](
const uvec2 pos_map[] = uvec2[4](
uvec2(1, 0), // right, top
uvec2(1, 1), // right, bottom
uvec2(0, 1), // left, bottom
uvec2(1, 0), // right, top,
uvec2(0, 1), // left, bottom,
uvec2(0, 0) // left, top
);
@ -114,7 +112,7 @@ class Renderer:
gl.glUniform1i(ul('sprite_map'), self.sprites.buffer_sampler_num)
gl.glUniform2f(ul('sprite_layout'), *self.sprites.layout)
with self.sprites:
gl.glDrawArraysInstanced(gl.GL_TRIANGLES, 0, 6, self.xnum * self.ynum)
gl.glDrawArraysInstanced(gl.GL_TRIANGLE_FAN, 0, 4, self.xnum * self.ynum)
# window setup {{{