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104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/*
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* xemu User Interface Rendering Helpers
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*
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* Copyright (C) 2020-2021 Matt Borgerson
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef XEMU_SHADERS_H
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#define XEMU_SHADERS_H
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#include <SDL2/SDL.h>
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#include <epoxy/gl.h>
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#include "stb_image.h"
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enum SHADER_TYPE {
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SHADER_TYPE_BLIT,
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SHADER_TYPE_BLIT_GAMMA,
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SHADER_TYPE_MASK,
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SHADER_TYPE_LOGO,
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};
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struct decal_shader
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{
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int flip;
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float scale;
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float smoothing;
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float outline_dist;
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uint32_t time;
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// GL object handles
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GLuint prog, vao, vbo, ebo;
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// Uniform locations
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GLint Mat_loc;
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GLint FlipY_loc;
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GLint tex_loc;
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GLint ScaleOffset_loc;
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GLint TexScaleOffset_loc;
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GLint ColorPrimary_loc;
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GLint ColorSecondary_loc;
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GLint ColorFill_loc;
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GLint time_loc;
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GLint scale_loc;
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GLint palette_loc[256];
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};
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struct fbo {
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GLuint fbo;
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GLuint tex;
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int w, h;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern GLuint main_fb;
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extern GLint vp[4];
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GLuint compile_shader(GLenum type, const char *src);
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struct decal_shader *create_decal_shader(enum SHADER_TYPE type);
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void delete_decal_shader(struct decal_shader *s);
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GLuint load_texture_from_file(const char *name);
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GLuint load_texture_from_memory(const unsigned char *buf, unsigned int size);
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struct fbo *create_fbo(int width, int height);
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void render_to_default_fb(void);
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GLuint render_to_fbo(struct fbo *fbo);
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void render_decal(
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struct decal_shader *s,
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float x, float y, float w, float h,
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float tex_x, float tex_y, float tex_w, float tex_h,
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uint32_t primary, uint32_t secondary, uint32_t fill
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);
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void render_decal_image(
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struct decal_shader *s,
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float x, float y, float w, float h,
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float tex_x, float tex_y, float tex_w, float tex_h
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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