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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2020, Blender Foundation.
*/
/** \file
* \ingroup draw_engine
*/
#include "DRW_render.h"
#include "BLI_dynstr.h"
#include "workbench_engine.h"
#include "workbench_private.h"
extern char datatoc_common_hair_lib_glsl[];
extern char datatoc_common_view_lib_glsl[];
extern char datatoc_workbench_prepass_vert_glsl[];
extern char datatoc_workbench_prepass_frag_glsl[];
// extern char datatoc_workbench_cavity_frag_glsl[];
// extern char datatoc_workbench_forward_composite_frag_glsl[];
// extern char datatoc_workbench_deferred_composite_frag_glsl[];
// extern char datatoc_workbench_deferred_background_frag_glsl[];
// extern char datatoc_workbench_ghost_resolve_frag_glsl[];
extern char datatoc_workbench_composite_frag_glsl[];
extern char datatoc_workbench_shadow_vert_glsl[];
extern char datatoc_workbench_shadow_geom_glsl[];
extern char datatoc_workbench_shadow_caps_geom_glsl[];
extern char datatoc_workbench_shadow_debug_frag_glsl[];
extern char datatoc_workbench_cavity_lib_glsl[];
extern char datatoc_workbench_common_lib_glsl[];
extern char datatoc_workbench_data_lib_glsl[];
extern char datatoc_workbench_object_outline_lib_glsl[];
extern char datatoc_workbench_curvature_lib_glsl[];
extern char datatoc_workbench_world_light_lib_glsl[];
extern char datatoc_gpu_shader_depth_only_frag_glsl[];
static struct {
struct GPUShader *prepass_sh_cache[GPU_SHADER_CFG_LEN][MAX_PREPASS_SHADERS];
struct GPUShader *composite_sh[MAX_COMPOSITE_SHADERS];
struct GPUShader *cavity_sh[MAX_CAVITY_SHADERS];
struct GPUShader *ghost_resolve_sh;
struct GPUShader *oit_resolve_sh;
struct GPUShader *shadow_fail_sh[2];
struct GPUShader *shadow_pass_sh[2];
struct GPUShader *shadow_caps_sh[2];
struct DRWShaderLibrary *lib;
} e_data = {{{NULL}}};
void workbench_shader_library_ensure(void)
{
if (e_data.lib == NULL) {
e_data.lib = DRW_shader_library_create();
DRW_SHADER_LIB_ADD(e_data.lib, common_hair_lib);
DRW_SHADER_LIB_ADD(e_data.lib, common_view_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_cavity_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_common_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_data_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_object_outline_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_curvature_lib);
DRW_SHADER_LIB_ADD(e_data.lib, workbench_world_light_lib);
}
}
static char *workbench_build_defines(WORKBENCH_PrivateData *UNUSED(wpd))
{
char *str = NULL;
DynStr *ds = BLI_dynstr_new();
if (NORMAL_ENCODING_ENABLED()) {
BLI_dynstr_append(ds, "#define WORKBENCH_ENCODE_NORMALS\n");
}
str = BLI_dynstr_get_cstring(ds);
BLI_dynstr_free(ds);
return str;
}
GPUShader *workbench_shader_opaque_get(WORKBENCH_PrivateData *wpd)
{
int index = 0;
if (e_data.prepass_sh_cache[wpd->sh_cfg][index] == NULL) {
char *defines = workbench_build_defines(wpd);
char *sh_src = DRW_shader_library_create_shader_string(e_data.lib,
datatoc_workbench_prepass_vert_glsl);
const GPUShaderConfigData *sh_cfg_data = &GPU_shader_cfg_data[wpd->sh_cfg];
e_data.prepass_sh_cache[wpd->sh_cfg][index] = GPU_shader_create_from_arrays({
.vert = (const char *[]){sh_cfg_data->lib, sh_src, NULL},
.frag = (const char *[]){sh_src, NULL},
.defs = (const char *[]){sh_cfg_data->def, defines, NULL},
});
MEM_freeN(defines);
MEM_freeN(sh_src);
}
return e_data.prepass_sh_cache[wpd->sh_cfg][index];
}
GPUShader *workbench_shader_opaque_hair_get(WORKBENCH_PrivateData *wpd)
{
// if (e_data.prepass_sh_cache[wpd->sh_cfg][index] == NULL) {
// char *vert = DRW_shader_library_create_shader_string(e_data.lib, char *shader_code);
// char *frag = DRW_shader_library_create_shader_string(e_data.lib, char *shader_code);
// char *defines = ;
// e_data.prepass_sh_cache[wpd->sh_cfg][index] = GPU_shader_create_from_arrays({
// .vert = (const char *[]){sh_cfg_data->lib, vert, NULL},
// .frag = (const char *[]){frag, NULL},
// .defs = (const char *[]){sh_cfg_data->def, defines, NULL},
// });
// MEM_freeN(vert);
// MEM_freeN(frag);
// MEM_freeN(defines);
// }
// return e_data.prepass_sh_cache[wpd->sh_cfg][index];
return NULL;
}
GPUShader *workbench_shader_composite_get(WORKBENCH_PrivateData *wpd)
{
int index = 0;
if (e_data.composite_sh[index] == NULL) {
char *defines = workbench_build_defines(wpd);
char *frag = DRW_shader_library_create_shader_string(e_data.lib,
datatoc_workbench_composite_frag_glsl);
e_data.composite_sh[index] = DRW_shader_create_fullscreen(frag, defines);
MEM_freeN(defines);
MEM_freeN(frag);
}
return e_data.composite_sh[index];
}
void workbench_shader_free(void)
{
for (int j = 0; j < ARRAY_SIZE(e_data.prepass_sh_cache); j++) {
for (int i = 0; i < MAX_PREPASS_SHADERS; i++) {
DRW_SHADER_FREE_SAFE(e_data.prepass_sh_cache[j][i]);
}
}
for (int i = 0; i < MAX_COMPOSITE_SHADERS; i++) {
DRW_SHADER_FREE_SAFE(e_data.composite_sh[i]);
}
DRW_SHADER_LIB_FREE_SAFE(e_data.lib);
}
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