+/*
+ * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
+ */
+
#include "common.h"
#include "model.h"
#include "shaders/blit.h"
#include "shaders/standard.h"
#include "shaders/vblend.h"
-#include "shaders/unlit.h"
-static void render_water_texture( m4x3f camera );
-static void render_water_surface( m4x4f pv, m4x3f camera );
-static void render_world( m4x4f projection, m4x3f camera );
-static void shader_link_standard_ub( GLuint shader, int texture_id );
-static void render_world_depth( m4x4f projection, m4x3f camera );
+VG_STATIC void render_water_texture( m4x3f camera );
+VG_STATIC void render_water_surface( m4x4f pv, m4x3f camera );
+VG_STATIC void render_world( m4x4f projection, m4x3f camera );
+VG_STATIC void shader_link_standard_ub( GLuint shader, int texture_id );
+VG_STATIC void render_world_depth( m4x4f projection, m4x3f camera );
#ifndef RENDER_H
#define RENDER_H
int allocated;
};
-static struct pipeline
+VG_STATIC struct pipeline
{
float fov;
glmesh fsquad;
/*
* http://www.terathon.com/lengyel/Lengyel-Oblique.pdf
*/
-static void plane_clip_projection( m4x4f mat, v4f plane )
+VG_STATIC void plane_clip_projection( m4x4f mat, v4f plane )
{
v4f c =
{
mat[3][2] = c[3];
}
-static void pipeline_projection( m4x4f mat, float nearz, float farz )
+VG_STATIC void pipeline_projection( m4x4f mat, float nearz, float farz )
{
m4x4_projection( mat,
gpipeline.fov,
- (float)vg_window_x / (float)vg_window_y,
+ (float)vg.window_x / (float)vg.window_y,
nearz, farz );
}
/*
* Shaders
*/
-static void shader_link_standard_ub( GLuint shader, int texture_id )
+VG_STATIC void shader_link_standard_ub( GLuint shader, int texture_id )
{
GLuint idx = glGetUniformBlockIndex( shader, "ub_world_lighting" );
glUniformBlockBinding( shader, idx, 0 );
glUniform1i( glGetUniformLocation( shader, "g_world_depth" ), texture_id );
}
-static void render_update_lighting_ub(void)
+VG_STATIC void render_update_lighting_ub(void)
{
struct ub_world_lighting *winf = &gpipeline.ub_world_lighting;
int c = 0;
* Framebuffers
*/
-static void fb_use( struct framebuffer *fb )
+VG_STATIC void fb_use( struct framebuffer *fb )
{
if( !fb )
{
glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- glViewport( 0, 0, vg_window_x, vg_window_y );
+ glViewport( 0, 0, vg.window_x, vg.window_y );
}
else
{
glBindFramebuffer( GL_FRAMEBUFFER, fb->fb );
- glViewport( 0, 0, vg_window_x / fb->div, vg_window_y / fb->div );
+ glViewport( 0, 0, vg.window_x / fb->div, vg.window_y / fb->div );
}
}
-__attribute__((warn_unused_result))
-static int fb_init( struct framebuffer *fb )
+VG_STATIC void fb_init( struct framebuffer *fb )
{
- i32 ix = vg_window_x / fb->div,
- iy = vg_window_y / fb->div;
+ i32 ix = vg.window_x / fb->div,
+ iy = vg.window_y / fb->div;
glGenFramebuffers( 1, &fb->fb );
glBindFramebuffer( GL_FRAMEBUFFER, fb->fb );
GL_RENDERBUFFER, fb->rb );
glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- if( VG_CHECK_GL_ERR() )
- {
- fb->allocated = 0;
- vg_error( "Error while creating standard framebuffer\n" );
- return 0;
- }
-
+ VG_CHECK_GL_ERR();
fb->allocated = 1;
- return 1;
}
-static void fb_free( struct framebuffer *fb )
+VG_STATIC void fb_free( struct framebuffer *fb )
{
glDeleteTextures( 1, &fb->colour );
glDeleteFramebuffers( 1, &fb->fb );
}
-static void fb_bindtex( struct framebuffer *fb, int texture )
+VG_STATIC void fb_bindtex( struct framebuffer *fb, int texture )
{
glActiveTexture( GL_TEXTURE0 + texture );
glBindTexture( GL_TEXTURE_2D, fb->colour );
}
-static void fb_resize( struct framebuffer *fb )
+VG_STATIC void fb_resize( struct framebuffer *fb )
{
if( !fb->allocated )
return;
- i32 ix = vg_window_x / fb->div,
- iy = vg_window_y / fb->div;
+ i32 ix = vg.window_x / fb->div,
+ iy = vg.window_y / fb->div;
glBindTexture( GL_TEXTURE_2D, fb->colour );
glTexImage2D( GL_TEXTURE_2D, 0, fb->format, ix, iy, 0,
glRenderbufferStorage( GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, ix, iy );
}
-static void render_fb_resize(void)
+VG_STATIC void render_fb_resize(void)
{
if( gpipeline.ready )
{
glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
- glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vg_window_x, vg_window_y, 0,
+ glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vg.window_x, vg.window_y, 0,
GL_RGB, GL_UNSIGNED_BYTE, NULL );
}
}
-/*
- * Vg
- */
-static int render_init(void)
+/* used for drawing player onto */
+VG_STATIC void render_init_temp_buffer(void)
{
- shader_blit_register();
- shader_standard_register();
- shader_vblend_register();
- shader_unlit_register();
+ vg_info( "[render] Allocate temporary framebuffer\n" );
- if( vg_acquire_thread_sync(1) )
- {
- vg_info( "Allocating framebuffers\n" );
+ glGenFramebuffers( 1, &gpipeline.fb_background );
+ glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_background );
- glGenFramebuffers( 1, &gpipeline.fb_background );
- glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_background );
+ glGenTextures( 1, &gpipeline.rgb_background );
+ glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
+ glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vg.window_x, vg.window_y,
+ 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
- glGenTextures( 1, &gpipeline.rgb_background );
- glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_background );
- glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vg_window_x, vg_window_y,
- 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+ glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D,
+ gpipeline.rgb_background, 0);
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
- glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
- GL_TEXTURE_2D,
- gpipeline.rgb_background, 0);
+ VG_CHECK_GL_ERR();
+}
- if( VG_CHECK_GL_ERR() )
- {
- vg_error( "Error while creating back buffer\n" );
- vg_release_thread_sync(1);
- return 0;
- }
+/* used for drawing world depth from the top view, used in our water and
+ * lighting calculations */
+VG_STATIC void render_init_depthmap_buffer(void)
+{
+ vg_info( "[render] Allocate depth map buffer\n" );
- /*
- * World depth map, maybe this should be moved to world.h
- * TODO: review
- */
- glGenFramebuffers( 1, &gpipeline.fb_depthmap );
- glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_depthmap );
-
- glGenTextures( 1, &gpipeline.rgb_depthmap );
- glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_depthmap );
- glTexImage2D( GL_TEXTURE_2D, 0, GL_R32F, 1024, 1024, 0,
- GL_RED, GL_FLOAT, NULL );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
- glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
- vg_tex2d_clamp();
-
- glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
- GL_TEXTURE_2D,
- gpipeline.rgb_depthmap, 0);
-
- if( VG_CHECK_GL_ERR() )
- {
- vg_error( "Error while creating world depth buffer\n" );
- glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- vg_release_thread_sync(1);
- return 0;
- }
+ glGenFramebuffers( 1, &gpipeline.fb_depthmap );
+ glBindFramebuffer( GL_FRAMEBUFFER, gpipeline.fb_depthmap );
- float quad[] = { 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f,
- 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f };
+ glGenTextures( 1, &gpipeline.rgb_depthmap );
+ glBindTexture( GL_TEXTURE_2D, gpipeline.rgb_depthmap );
+ glTexImage2D( GL_TEXTURE_2D, 0, GL_R32F, 1024, 1024, 0,
+ GL_RED, GL_FLOAT, NULL );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+ vg_tex2d_clamp();
- glGenVertexArrays( 1, &gpipeline.fsquad.vao );
- glGenBuffers( 1, &gpipeline.fsquad.vbo );
- glBindVertexArray( gpipeline.fsquad.vao );
- glBindBuffer( GL_ARRAY_BUFFER, gpipeline.fsquad.vbo );
- glBufferData( GL_ARRAY_BUFFER, sizeof(quad), quad, GL_STATIC_DRAW );
- glBindVertexArray( gpipeline.fsquad.vao );
- glVertexAttribPointer( 0, 2, GL_FLOAT, GL_FALSE,
- sizeof(float)*2, (void*)0 );
- glEnableVertexAttribArray( 0 );
+ glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D,
+ gpipeline.rgb_depthmap, 0);
- if( VG_CHECK_GL_ERR() )
- {
- vg_error( "Error while creating fsquad\n" );
- glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- vg_release_thread_sync(1);
- return 0;
- }
+ VG_CHECK_GL_ERR();
+}
- glGenBuffers( 1, &gpipeline.ubo_world_lighting );
- glBindBuffer( GL_UNIFORM_BUFFER, gpipeline.ubo_world_lighting );
- glBufferData( GL_UNIFORM_BUFFER, sizeof(struct ub_world_lighting),
- NULL, GL_DYNAMIC_DRAW );
+VG_STATIC void render_init_fs_quad(void)
+{
+ vg_info( "[render] Allocate quad\n" );
- render_update_lighting_ub();
- glBindBufferBase( GL_UNIFORM_BUFFER, 0, gpipeline.ubo_world_lighting );
+ float quad[] = { 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f,
+ 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f };
- if( VG_CHECK_GL_ERR() )
- {
- vg_error( "Error while creating world uniform buffers\n" );
- glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- vg_release_thread_sync(1);
- return 0;
- }
+ glGenVertexArrays( 1, &gpipeline.fsquad.vao );
+ glGenBuffers( 1, &gpipeline.fsquad.vbo );
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glBindBuffer( GL_ARRAY_BUFFER, gpipeline.fsquad.vbo );
+ glBufferData( GL_ARRAY_BUFFER, sizeof(quad), quad, GL_STATIC_DRAW );
+ glBindVertexArray( gpipeline.fsquad.vao );
+ glVertexAttribPointer( 0, 2, GL_FLOAT, GL_FALSE,
+ sizeof(float)*2, (void*)0 );
+ glEnableVertexAttribArray( 0 );
- glBindFramebuffer( GL_FRAMEBUFFER, 0 );
- vg_success( "Done\n" );
-
- gpipeline.ready = 1;
- vg_release_thread_sync(1);
- return 1;
- }
- else
- return 0;
+ VG_CHECK_GL_ERR();
+}
+
+VG_STATIC void render_init_uniform_buffers(void)
+{
+ vg_info( "[render] Allocate uniform buffer\n" );
+
+ glGenBuffers( 1, &gpipeline.ubo_world_lighting );
+ glBindBuffer( GL_UNIFORM_BUFFER, gpipeline.ubo_world_lighting );
+ glBufferData( GL_UNIFORM_BUFFER, sizeof(struct ub_world_lighting),
+ NULL, GL_DYNAMIC_DRAW );
+
+ render_update_lighting_ub();
+ glBindBufferBase( GL_UNIFORM_BUFFER, 0, gpipeline.ubo_world_lighting );
+
+ VG_CHECK_GL_ERR();
}
-static void render_free(void *_)
+VG_STATIC void render_init(void)
{
- glDeleteVertexArrays( 1, &gpipeline.fsquad.vao );
- glDeleteBuffers( 1, &gpipeline.fsquad.vbo );
+ shader_blit_register();
+ shader_standard_register();
+ shader_vblend_register();
+
+ vg_acquire_thread_sync();
+ {
+ render_init_temp_buffer();
+ render_init_depthmap_buffer();
+ render_init_fs_quad();
+ render_init_uniform_buffers();
- glDeleteFramebuffers( 1, &gpipeline.fb_background );
- glDeleteFramebuffers( 1, &gpipeline.fb_depthmap );
+ glBindFramebuffer( GL_FRAMEBUFFER, 0 );
+ gpipeline.ready = 1;
+ }
- glDeleteTextures( 1, &gpipeline.rgb_background );
- glDeleteTextures( 1, &gpipeline.rgb_depthmap );
+ vg_release_thread_sync();
}
/*
* Utility
*/
-static void render_fsquad(void)
+VG_STATIC void render_fsquad(void)
{
glBindVertexArray( gpipeline.fsquad.vao );
glDrawArrays( GL_TRIANGLES, 0, 6 );
projects / carveJwlIkooP6JGAAIwe30JlM.git / blobdiff