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2cd8202af3
PortableGL supports shaders, but requires them to be compiled ahead-of-time to C or C++. I'll write a compiler later to translate from GLSL to this format automatically at build time.
29 lines
1.3 KiB
C
29 lines
1.3 KiB
C
#include "tilemapvx.pgl.h"
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static const pgl_vec2 atAreaA = {9.0*32.0, 12.0*32.0};
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static const float atAreaCX = 12.0*32.0;
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static const float atAreaCW = 4.0*32.0;
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void mkxpTilemapVXVS(float *_output, pgl_vec4 *_attribs, Shader_Builtins *builtins, void *_uniforms)
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{
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struct TilemapVXVarying *output = (struct TilemapVXVarying *)_output;
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struct TilemapVXAttribs *attribs = (struct TilemapVXAttribs *)_attribs;
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struct TilemapVXUniforms *uniforms = (struct TilemapVXUniforms *)_uniforms;
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pgl_vec2 tex = attribs->texCoord;
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float pred;
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pred = tex.x <= atAreaA.x && tex.y <= atAreaA.y;
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tex.x += uniforms->aniOffset.x * pred;
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pred = tex.x >= atAreaCX && tex.x <= (atAreaCX+atAreaCW) && tex.y <= atAreaA.y;
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tex.y += uniforms->aniOffset.y * pred;
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builtins->gl_Position = mult_mat4_vec4(uniforms->projMat, (pgl_vec4){attribs->position.x + uniforms->translation.x, attribs->position.y + uniforms->translation.y, 0, 1});
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output->v_texCoord = mult_vec2s(tex, uniforms->texSizeInv);
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}
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void mkxpTilemapVXFS(float *_input, Shader_Builtins *builtins, void *_uniforms)
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{
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struct TilemapVXVarying *input = (struct TilemapVXVarying *)_input;
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struct TilemapVXUniforms *uniforms = (struct TilemapVXUniforms *)_uniforms;
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builtins->gl_FragColor = mkxp_pgl_texture2D(uniforms->texture, input->v_texCoord.x, input->v_texCoord.y);
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}
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