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[vg.git] / src / vg / vg_lines.h

diff --git a/src/vg/vg_lines.h b/src/vg/vg_lines.h
deleted file mode 100644 (file)
index 0263722..0000000
--- a/src/vg/vg_lines.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
-
-#ifdef VG_3D
- typedef v3f line_co;
-#else
- typedef v2f line_co;
-#endif
-
-SHADER_DEFINE( vg_line_shader, 
-#ifdef VG_3D
-       "uniform mat4 uPv;"
-       "layout (location=0) in vec3 a_co;"
-#else
-       "uniform mat3 uPv;"
-       "layout (location=0) in vec2 a_co;"
-#endif
-       "layout (location=1) in vec4 a_colour;"
-       ""
-       "out vec4 s_colour;"
-       ""
-       "void main()"
-       "{"
-#ifdef VG_3D
-       "       vec4 vert_pos = uPv * vec4( a_co, 1.0 );"
-#else
-       "       vec4 vert_pos = vec4( uPv * vec3( a_co, 1.0 ), 1.0 );"
-#endif
-       "  s_colour = a_colour;"
-       "       gl_Position = vert_pos;"
-       "}",
-       
-       // FRAGMENT
-       "out vec4 FragColor;"
-       ""
-       "in vec4 s_colour;"
-       ""
-       "void main()"
-       "{"
-       "       FragColor = s_colour;"
-       "}"
-       ,
-       UNIFORMS({ "uPv" })
-)
-
-struct
-{
-       struct vg_lines_vert
-       {
-#ifdef VG_3D
-      v3f co;
-#else
-               v2f co;
-#endif
-
-               u32 colour;
-       }
-       *buffer;
-       
-       GLuint vao, vbo;
-       u32 draw_idx, cap, buffer_size;
-}
-vg_lines;
-
-static void vg_lines_init(void)
-{
-       SHADER_INIT( vg_line_shader );
-       
-       glGenVertexArrays( 1, &vg_lines.vao );
-       glGenBuffers( 1, &vg_lines.vbo );
-       glBindVertexArray( vg_lines.vao );
-       
-       glBindBuffer( GL_ARRAY_BUFFER, vg_lines.vbo );
-       
-       vg_lines.cap = 50000;
-       vg_lines.buffer_size = vg_lines.cap * sizeof( struct vg_lines_vert );
-       
-       glBufferData( GL_ARRAY_BUFFER, vg_lines.buffer_size, NULL, GL_DYNAMIC_DRAW );
-       glBindVertexArray( vg_lines.vao );
-       
-       glVertexAttribPointer( 
-               0, 
-               sizeof( vg_lines.buffer[0].co ) / sizeof(float), 
-               GL_FLOAT, 
-               GL_FALSE, 
-               sizeof( struct vg_lines_vert ), 
-               (void *)0 
-       );
-       glEnableVertexAttribArray( 0 );
-       
-       glVertexAttribPointer( 
-               1, 
-               4, 
-               GL_UNSIGNED_BYTE, 
-               GL_TRUE, 
-               sizeof( struct vg_lines_vert ), 
-               (void*)(offsetof( struct vg_lines_vert, colour ))
-       );
-       glEnableVertexAttribArray( 1 );
-       vg_lines.buffer = malloc( vg_lines.buffer_size );
-}
-
-static void vg_lines_free(void)
-{
-       glDeleteVertexArrays( 1, &vg_lines.vao );
-       glDeleteBuffers( 1, &vg_lines.vbo );
-       
-       free( vg_lines.buffer );
-}
-
-static void vg_lines_drawall( float* projection )
-{
-       SHADER_USE( vg_line_shader );
-
-#ifdef VG_3D
-   glUniformMatrix4fv
-#else
-       glUniformMatrix3fv
-#endif
-   ( SHADER_UNIFORM( vg_line_shader, "uPv" ), 1, GL_FALSE, projection );
-
-       glBindVertexArray( vg_lines.vao );
-       glBindBuffer( GL_ARRAY_BUFFER, vg_lines.vbo );
-       
-       glBufferSubData( GL_ARRAY_BUFFER, 0, vg_lines.draw_idx * 
-         sizeof(struct vg_lines_vert), vg_lines.buffer );
-
-       glEnable( GL_BLEND );
-       glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
-       glBlendEquation( GL_FUNC_ADD );
-       glDrawArrays( GL_LINES, 0, vg_lines.draw_idx );
-       
-       glDisable( GL_BLEND );
-       vg_lines.draw_idx = 0;
-}
-
-static void vg_line2( line_co from, line_co to, u32 fc, u32 tc )
-{
-       struct vg_lines_vert *v = &vg_lines.buffer[vg_lines.draw_idx];
-
-#ifdef VG_3D
-       v3_copy( from, v[0].co );
-       v3_copy( to, v[1].co );
-#else
-       v2_copy( from, v[0].co );
-       v2_copy( to, v[1].co );
-#endif
-
-       v[0].colour = fc;
-       v[1].colour = tc;
-       
-       vg_lines.draw_idx += 2;
-}
-
-static void vg_line( line_co from, line_co to, u32 colour )
-{
-       vg_line2( from, to, colour, colour );
-}
-
-static void vg_line_box( line_co min, line_co max, u32 colour )
-{
-#ifdef VG_3D
-   /* TODO... */
-#else
-       vg_line( min, (v2f){min[0],max[1]}, colour );
-       vg_line( (v2f){min[0],max[1]}, max, colour );
-       vg_line( max, (v2f){max[0],min[1]}, colour );
-       vg_line( (v2f){max[0],min[1]}, min, colour );
-#endif
-}