Mercurial > touhou
diff pytouhou/ui/glide/sprite.pyx @ 772:7492d384d122 default tip
Rust: Add a Glide renderer (2D only for now)
This is an experiment for a Rust renderer, iterating over the Python data using
pyo3. It requires --feature=glide to be passed to cargo build, doesn’t support
NPOT textures, text rendering, the background, or even msg faces, some of that
may come in a future changeset.
author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
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date | Mon, 05 Sep 2022 17:53:36 +0200 |
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children |
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new file mode 100644 --- /dev/null +++ b/pytouhou/ui/glide/sprite.pyx @@ -0,0 +1,86 @@ +# -*- encoding: utf-8 -*- +## +## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com> +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published +## by the Free Software Foundation; version 3 only. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## + + +from libc.stdlib cimport malloc +from libc.string cimport memcpy +from libc.math cimport M_PI as pi + +from pytouhou.utils.matrix cimport Matrix, scale2d, flip, rotate_x, rotate_y, rotate_z, translate, translate2d + + +cdef Matrix default +default = Matrix(-.5, .5, .5, -.5, + -.5, -.5, .5, .5, + 0, 0, 0, 0, + 1, 1, 1, 1) + + +def get_sprite_rendering_data(Sprite sprite): + if sprite.changed: + render_sprite(sprite) + data = <RenderingData*>sprite._rendering_data + color = <unsigned int>data.color[0] << 24 | <unsigned int>data.color[1] << 16 | <unsigned int>data.color[2] << 8 | <unsigned int>data.color[3] + return (data.pos, [data.left, data.right, data.bottom, data.top], color) + + +cdef void render_sprite(Sprite sprite) nogil: + cdef Matrix vertmat + + if sprite._rendering_data == NULL: + sprite._rendering_data = malloc(sizeof(RenderingData)) + + data = <RenderingData*>sprite._rendering_data + memcpy(&vertmat, &default, sizeof(Matrix)) + + tx, ty, tw, th = sprite._texcoords[0], sprite._texcoords[1], sprite._texcoords[2], sprite._texcoords[3] + sx, sy = sprite._rescale[0], sprite._rescale[1] + width = sprite.width_override or (tw * sx) + height = sprite.height_override or (th * sy) + + scale2d(&vertmat, width, height) + if sprite.mirrored: + flip(&vertmat) + + rx, ry, rz = sprite._rotations_3d[0], sprite._rotations_3d[1], sprite._rotations_3d[2] + if sprite.automatic_orientation: + rz += pi/2. - sprite.angle + elif sprite.force_rotation: + rz += sprite.angle + + if rx: + rotate_x(&vertmat, -rx) + if ry: + rotate_y(&vertmat, ry) + if rz: + rotate_z(&vertmat, -rz) #TODO: minus, really? + if sprite.allow_dest_offset: + translate(&vertmat, sprite._dest_offset) + if sprite.corner_relative_placement: # Reposition + translate2d(&vertmat, width / 2, height / 2) + + memcpy(data.pos, &vertmat, 12 * sizeof(float)) + + x_1 = sprite.anm.size_inv[0] + y_1 = sprite.anm.size_inv[1] + tox, toy = sprite._texoffsets[0], sprite._texoffsets[1] + data.left = tx * x_1 + tox + data.right = (tx + tw) * x_1 + tox + data.bottom = ty * y_1 + toy + data.top = (ty + th) * y_1 + toy + + for i in range(4): + data.color[i] = sprite._color[i] + + sprite.changed = False