mkxp-z/shader/simpleMatrix.pgl.c
刘皓 2cd8202af3
Convert GLSL shaders to PortableGL's shader format
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.
2025-03-13 16:16:17 -04:00

21 lines
1 KiB
C

#include "simpleMatrix.pgl.h"
void mkxpSimpleMatrixVS(float *_output, pgl_vec4 *_attribs, Shader_Builtins *builtins, void *_uniforms)
{
struct SimpleMatrixVarying *output = (struct SimpleMatrixVarying *)_output;
struct SimpleMatrixAttribs *attribs = (struct SimpleMatrixAttribs *)_attribs;
struct SimpleMatrixUniforms *uniforms = (struct SimpleMatrixUniforms *)_uniforms;
builtins->gl_Position = mult_mat4_vec4(uniforms->projMat, mult_mat4_vec4(uniforms->matrix, (pgl_vec4){attribs->position.x, attribs->position.y, 0, 1}));
output->v_texCoord = mult_vec2s(attribs->texCoord, uniforms->texSizeInv);
output->v_color = attribs->color;
}
void mkxpSimpleMatrixFS(float *_input, Shader_Builtins *builtins, void *_uniforms)
{
struct SimpleMatrixVarying *input = (struct SimpleMatrixVarying *)_input;
struct SimpleMatrixUniforms *uniforms = (struct SimpleMatrixUniforms *)_uniforms;
builtins->gl_FragColor = mkxp_pgl_texture2D(uniforms->texture, input->v_texCoord.x, input->v_texCoord.y);
builtins->gl_FragColor.w *= input->v_color.w;
}