static bool load_preset(const char *path)
{
unsigned i;
if (!load_stock())
return false;
RARCH_LOG("Loading Cg meta-shader: %s\n", path);
config_file_t *conf = config_file_new(path);
if (!conf)
{
RARCH_ERR("Failed to load preset.\n");
return false;
}
if (!cg_shader)
cg_shader = (struct gfx_shader*)calloc(1, sizeof(*cg_shader));
if (!cg_shader)
return false;
if (!gfx_shader_read_conf_cgp(conf, cg_shader))
{
RARCH_ERR("Failed to parse CGP file.\n");
config_file_free(conf);
return false;
}
config_file_free(conf);
gfx_shader_resolve_relative(cg_shader, path);
if (cg_shader->passes > GFX_MAX_SHADERS - 3)
{
RARCH_WARN("Too many shaders ... Capping shader amount to %d.\n", GFX_MAX_SHADERS - 3);
cg_shader->passes = GFX_MAX_SHADERS - 3;
}
for (i = 0; i < cg_shader->passes; i++)
{
if (!load_shader(i))
{
RARCH_ERR("Failed to load shaders ...\n");
return false;
}
}
if (!load_textures())
{
RARCH_ERR("Failed to load lookup textures ...\n");
return false;
}
if (!load_imports())
{
RARCH_ERR("Failed to load imports ...\n");
return false;
}
return true;
}
void shader_manager_init(rgui_handle_t *rgui)
{
config_file_t *conf = NULL;
char cgp_path[PATH_MAX];
const char *ext = path_get_extension(g_settings.video.shader_path);
if (strcmp(ext, "glslp") == 0 || strcmp(ext, "cgp") == 0)
{
conf = config_file_new(g_settings.video.shader_path);
if (conf)
{
if (gfx_shader_read_conf_cgp(conf, &rgui->shader))
gfx_shader_resolve_relative(&rgui->shader, g_settings.video.shader_path);
config_file_free(conf);
}
}
else if (strcmp(ext, "glsl") == 0 || strcmp(ext, "cg") == 0)
{
strlcpy(rgui->shader.pass[0].source.cg, g_settings.video.shader_path,
sizeof(rgui->shader.pass[0].source.cg));
rgui->shader.passes = 1;
}
else
{
const char *shader_dir = *g_settings.video.shader_dir ?
g_settings.video.shader_dir : g_settings.system_directory;
fill_pathname_join(cgp_path, shader_dir, "rgui.glslp", sizeof(cgp_path));
conf = config_file_new(cgp_path);
if (!conf)
{
fill_pathname_join(cgp_path, shader_dir, "rgui.cgp", sizeof(cgp_path));
conf = config_file_new(cgp_path);
}
if (conf)
{
if (gfx_shader_read_conf_cgp(conf, &rgui->shader))
gfx_shader_resolve_relative(&rgui->shader, cgp_path);
config_file_free(conf);
}
}
}
bool d3d_init_multipass(void *data)
{
d3d_video_t *d3d = (d3d_video_t*)data;
config_file_t *conf = config_file_new(d3d->cg_shader.c_str());
if (!conf)
{
RARCH_ERR("Failed to load preset.\n");
return false;
}
memset(&d3d->shader, 0, sizeof(d3d->shader));
if (!gfx_shader_read_conf_cgp(conf, &d3d->shader))
{
config_file_free(conf);
RARCH_ERR("Failed to parse CGP file.\n");
return false;
}
config_file_free(conf);
gfx_shader_resolve_relative(&d3d->shader, d3d->cg_shader.c_str());
RARCH_LOG("[D3D9 Meta-Cg] Found %d shaders.\n", d3d->shader.passes);
for (unsigned i = 0; i < d3d->shader.passes; i++)
{
if (!d3d->shader.pass[i].fbo.valid)
{
d3d->shader.pass[i].fbo.scale_x = d3d->shader.pass[i].fbo.scale_y = 1.0f;
d3d->shader.pass[i].fbo.type_x = d3d->shader.pass[i].fbo.type_y = RARCH_SCALE_INPUT;
}
}
bool use_extra_pass = d3d->shader.passes < GFX_MAX_SHADERS && d3d->shader.pass[d3d->shader.passes - 1].fbo.valid;
if (use_extra_pass)
{
d3d->shader.passes++;
gfx_shader_pass &dummy_pass = d3d->shader.pass[d3d->shader.passes - 1];
dummy_pass.fbo.scale_x = dummy_pass.fbo.scale_y = 1.0f;
dummy_pass.fbo.type_x = dummy_pass.fbo.type_y = RARCH_SCALE_VIEWPORT;
dummy_pass.filter = RARCH_FILTER_UNSPEC;
}
else
{
gfx_shader_pass &pass = d3d->shader.pass[d3d->shader.passes - 1];
pass.fbo.scale_x = pass.fbo.scale_y = 1.0f;
pass.fbo.type_x = pass.fbo.type_y = RARCH_SCALE_VIEWPORT;
}
return true;
}
void menu_shader_manager_set_preset(struct gfx_shader *shader,
unsigned type, const char *cgp_path)
{
RARCH_LOG("Setting Menu shader: %s.\n", cgp_path ? cgp_path : "N/A (stock)");
g_settings.video.shader_enable = false;
if (driver.video->set_shader && driver.video->set_shader(driver.video_data,
(enum rarch_shader_type)type, cgp_path))
{
/* Makes sure that we use Menu CGP shader on driver reinit.
* Only do this when the cgp actually works to avoid potential errors. */
strlcpy(g_settings.video.shader_path, cgp_path ? cgp_path : "",
sizeof(g_settings.video.shader_path));
g_settings.video.shader_enable = true;
if (cgp_path && shader)
{
/* Load stored CGP into menu on success.
* Used when a preset is directly loaded.
* No point in updating when the CGP was
* created from the menu itself. */
config_file_t *conf = config_file_new(cgp_path);
if (conf)
{
if (gfx_shader_read_conf_cgp(conf, shader))
{
gfx_shader_resolve_relative(shader, cgp_path);
gfx_shader_resolve_parameters(conf, shader);
}
config_file_free(conf);
}
driver.menu->need_refresh = true;
}
}
}
void menu_shader_manager_init(void *data)
{
char cgp_path[PATH_MAX];
struct gfx_shader *shader;
config_file_t *conf = NULL;
const char *config_path = NULL;
menu_handle_t *menu = (menu_handle_t*)data;
if (!menu)
return;
shader = (struct gfx_shader*)menu->shader;
if (*g_extern.core_specific_config_path
&& g_settings.core_specific_config)
config_path = g_extern.core_specific_config_path;
else if (*g_extern.config_path)
config_path = g_extern.config_path;
/* In a multi-config setting, we can't have
* conflicts on menu.cgp/menu.glslp. */
if (config_path)
{
fill_pathname_base(menu->default_glslp, config_path,
sizeof(menu->default_glslp));
path_remove_extension(menu->default_glslp);
strlcat(menu->default_glslp, ".glslp", sizeof(menu->default_glslp));
fill_pathname_base(menu->default_cgp, config_path,
sizeof(menu->default_cgp));
path_remove_extension(menu->default_cgp);
strlcat(menu->default_cgp, ".cgp", sizeof(menu->default_cgp));
}
else
{
strlcpy(menu->default_glslp, "menu.glslp", sizeof(menu->default_glslp));
strlcpy(menu->default_cgp, "menu.cgp", sizeof(menu->default_cgp));
}
const char *ext = path_get_extension(g_settings.video.shader_path);
if (strcmp(ext, "glslp") == 0 || strcmp(ext, "cgp") == 0)
{
conf = config_file_new(g_settings.video.shader_path);
if (conf)
{
if (gfx_shader_read_conf_cgp(conf, shader))
{
gfx_shader_resolve_relative(shader, g_settings.video.shader_path);
gfx_shader_resolve_parameters(conf, shader);
}
config_file_free(conf);
}
}
else if (strcmp(ext, "glsl") == 0 || strcmp(ext, "cg") == 0)
{
strlcpy(shader->pass[0].source.path, g_settings.video.shader_path,
sizeof(shader->pass[0].source.path));
shader->passes = 1;
}
else
{
const char *shader_dir = *g_settings.video.shader_dir ?
g_settings.video.shader_dir : g_settings.system_directory;
fill_pathname_join(cgp_path, shader_dir, "menu.glslp", sizeof(cgp_path));
conf = config_file_new(cgp_path);
if (!conf)
{
fill_pathname_join(cgp_path, shader_dir, "menu.cgp", sizeof(cgp_path));
conf = config_file_new(cgp_path);
}
if (conf)
{
if (gfx_shader_read_conf_cgp(conf, shader))
{
gfx_shader_resolve_relative(shader, cgp_path);
gfx_shader_resolve_parameters(conf, shader);
}
config_file_free(conf);
}
}
}
static bool gl_glsl_init(void *data, const char *path)
{
unsigned i;
(void)data;
#ifndef HAVE_OPENGLES2
RARCH_LOG("Checking GLSL shader support ...\n");
bool shader_support = glCreateProgram && glUseProgram && glCreateShader
&& glDeleteShader && glShaderSource && glCompileShader && glAttachShader
&& glDetachShader && glLinkProgram && glGetUniformLocation
&& glUniform1i && glUniform1f && glUniform2fv && glUniform4fv && glUniformMatrix4fv
&& glGetShaderiv && glGetShaderInfoLog && glGetProgramiv && glGetProgramInfoLog
&& glDeleteProgram && glGetAttachedShaders
&& glGetAttribLocation && glEnableVertexAttribArray && glDisableVertexAttribArray
&& glVertexAttribPointer
&& glGenBuffers && glBufferData && glDeleteBuffers && glBindBuffer;
if (!shader_support)
{
RARCH_ERR("GLSL shaders aren't supported by your OpenGL driver.\n");
return false;
}
#endif
glsl_shader = (struct gfx_shader*)calloc(1, sizeof(*glsl_shader));
if (!glsl_shader)
return false;
if (path)
{
bool ret;
if (strcmp(path_get_extension(path), "glsl") == 0)
{
strlcpy(glsl_shader->pass[0].source.cg, path, sizeof(glsl_shader->pass[0].source.cg));
glsl_shader->passes = 1;
glsl_shader->modern = true;
ret = true;
}
else if (strcmp(path_get_extension(path), "glslp") == 0)
{
config_file_t *conf = config_file_new(path);
if (conf)
{
ret = gfx_shader_read_conf_cgp(conf, glsl_shader);
glsl_shader->modern = true;
config_file_free(conf);
}
else
ret = false;
}
else
ret = gfx_shader_read_xml(path, glsl_shader);
if (!ret)
{
RARCH_ERR("[GL]: Failed to parse GLSL shader.\n");
return false;
}
}
else
{
RARCH_WARN("[GL]: Stock GLSL shaders will be used.\n");
glsl_shader->passes = 1;
glsl_shader->pass[0].source.xml.vertex = strdup(glsl_core ? stock_vertex_core : stock_vertex_modern);
glsl_shader->pass[0].source.xml.fragment = strdup(glsl_core ? stock_fragment_core : stock_fragment_modern);
glsl_shader->modern = true;
}
gfx_shader_resolve_relative(glsl_shader, path);
const char *stock_vertex = glsl_shader->modern ?
stock_vertex_modern : stock_vertex_legacy;
const char *stock_fragment = glsl_shader->modern ?
stock_fragment_modern : stock_fragment_legacy;
if (glsl_core)
{
stock_vertex = stock_vertex_core;
stock_fragment = stock_fragment_core;
}
#ifdef HAVE_OPENGLES2
if (!glsl_shader->modern)
{
RARCH_ERR("[GL]: GLES context is used, but shader is not modern. Cannot use it.\n");
goto error;
}
#else
if (glsl_core && !glsl_shader->modern)
{
RARCH_ERR("[GL]: GL core context is used, but shader is not core compatible. Cannot use it.\n");
goto error;
}
#endif
if (!(gl_program[0] = compile_program(stock_vertex, stock_fragment, 0)))
{
RARCH_ERR("GLSL stock programs failed to compile.\n");
goto error;
}
if (!compile_programs(&gl_program[1]))
goto error;
if (!gl_load_luts(glsl_shader, gl_teximage))
{
RARCH_ERR("[GL]: Failed to load LUTs.\n");
goto error;
}
for (i = 0; i <= glsl_shader->passes; i++)
find_uniforms(i, gl_program[i], &gl_uniforms[i]);
#ifdef GLSL_DEBUG
if (!gl_check_error())
RARCH_WARN("Detected GL error in GLSL.\n");
#endif
if (glsl_shader->variables)
{
struct state_tracker_info info = {0};
info.wram = (uint8_t*)pretro_get_memory_data(RETRO_MEMORY_SYSTEM_RAM);
info.info = glsl_shader->variable;
info.info_elem = glsl_shader->variables;
#ifdef HAVE_PYTHON
info.script = glsl_shader->script;
info.script_class = *glsl_shader->script_class ?
glsl_shader->script_class : NULL;
#endif
gl_state_tracker = state_tracker_init(&info);
if (!gl_state_tracker)
RARCH_WARN("Failed to init state tracker.\n");
}
glsl_enable = true;
gl_program[glsl_shader->passes + 1] = gl_program[0];
gl_uniforms[glsl_shader->passes + 1] = gl_uniforms[0];
if (glsl_shader->modern)
{
gl_program[GL_SHADER_STOCK_BLEND] = compile_program(glsl_core ? stock_vertex_core_blend : stock_vertex_modern_blend,
glsl_core ? stock_fragment_core_blend : stock_fragment_modern_blend, GL_SHADER_STOCK_BLEND);
find_uniforms(0, gl_program[GL_SHADER_STOCK_BLEND], &gl_uniforms[GL_SHADER_STOCK_BLEND]);
}
else
{
gl_program[GL_SHADER_STOCK_BLEND] = gl_program[0];
gl_uniforms[GL_SHADER_STOCK_BLEND] = gl_uniforms[0];
}
gl_glsl_reset_attrib();
for (i = 0; i < GFX_MAX_SHADERS; i++)
{
glGenBuffers(1, &glsl_vbo[i].vbo_primary);
glGenBuffers(1, &glsl_vbo[i].vbo_secondary);
}
return true;
error:
gl_glsl_deinit();
return false;
}
static bool load_preset(cg_shader_data_t *cg, const char *path)
{
unsigned i;
if (!load_stock(cg))
return false;
RARCH_LOG("Loading Cg meta-shader: %s\n", path);
config_file_t *conf = config_file_new(path);
if (!conf)
{
RARCH_ERR("Failed to load preset.\n");
return false;
}
cg->cg_shader = (struct gfx_shader*)calloc(1, sizeof(*cg->cg_shader));
if (!cg->cg_shader)
return false;
if (!gfx_shader_read_conf_cgp(conf, cg->cg_shader))
{
RARCH_ERR("Failed to parse CGP file.\n");
config_file_free(conf);
return false;
}
gfx_shader_resolve_relative(cg->cg_shader, path);
gfx_shader_resolve_parameters(conf, cg->cg_shader);
config_file_free(conf);
if (cg->cg_shader->passes > GFX_MAX_SHADERS - 3)
{
RARCH_WARN("Too many shaders ... Capping shader amount to %d.\n",
GFX_MAX_SHADERS - 3);
cg->cg_shader->passes = GFX_MAX_SHADERS - 3;
}
for (i = 0; i < cg->cg_shader->passes; i++)
if (*cg->cg_shader->pass[i].alias)
snprintf(cg->cg_alias_define[i],
sizeof(cg->cg_alias_define[i]),
"-D%s_ALIAS",
cg->cg_shader->pass[i].alias);
for (i = 0; i < cg->cg_shader->passes; i++)
{
if (!load_shader(cg, i))
{
RARCH_ERR("Failed to load shaders ...\n");
return false;
}
}
if (!gl_load_luts(cg->cg_shader, cg->lut_textures))
{
RARCH_ERR("Failed to load lookup textures ...\n");
return false;
}
if (!gl_cg_load_imports(cg))
{
RARCH_ERR("Failed to load imports ...\n");
return false;
}
return true;
}
static bool gl_glsl_init(const char *path)
{
#if !defined(HAVE_OPENGLES2) && !defined(HAVE_OPENGL_MODERN) && !defined(__APPLE__)
// Load shader functions.
LOAD_GL_SYM(CreateProgram);
LOAD_GL_SYM(UseProgram);
LOAD_GL_SYM(CreateShader);
LOAD_GL_SYM(DeleteShader);
LOAD_GL_SYM(ShaderSource);
LOAD_GL_SYM(CompileShader);
LOAD_GL_SYM(AttachShader);
LOAD_GL_SYM(DetachShader);
LOAD_GL_SYM(LinkProgram);
LOAD_GL_SYM(GetUniformLocation);
LOAD_GL_SYM(Uniform1i);
LOAD_GL_SYM(Uniform1f);
LOAD_GL_SYM(Uniform2fv);
LOAD_GL_SYM(Uniform4fv);
LOAD_GL_SYM(UniformMatrix4fv);
LOAD_GL_SYM(GetShaderiv);
LOAD_GL_SYM(GetShaderInfoLog);
LOAD_GL_SYM(GetProgramiv);
LOAD_GL_SYM(GetProgramInfoLog);
LOAD_GL_SYM(DeleteProgram);
LOAD_GL_SYM(GetAttachedShaders);
LOAD_GL_SYM(GetAttribLocation);
LOAD_GL_SYM(EnableVertexAttribArray);
LOAD_GL_SYM(DisableVertexAttribArray);
LOAD_GL_SYM(VertexAttribPointer);
RARCH_LOG("Checking GLSL shader support ...\n");
bool shader_support = pglCreateProgram && pglUseProgram && pglCreateShader
&& pglDeleteShader && pglShaderSource && pglCompileShader && pglAttachShader
&& pglDetachShader && pglLinkProgram && pglGetUniformLocation
&& pglUniform1i && pglUniform1f && pglUniform2fv && pglUniform4fv && pglUniformMatrix4fv
&& pglGetShaderiv && pglGetShaderInfoLog && pglGetProgramiv && pglGetProgramInfoLog
&& pglDeleteProgram && pglGetAttachedShaders
&& pglGetAttribLocation && pglEnableVertexAttribArray && pglDisableVertexAttribArray
&& pglVertexAttribPointer;
if (!shader_support)
{
RARCH_ERR("GLSL shaders aren't supported by your OpenGL driver.\n");
return false;
}
#endif
glsl_shader = (struct gfx_shader*)calloc(1, sizeof(*glsl_shader));
if (!glsl_shader)
return false;
if (path)
{
bool ret;
if (strcmp(path_get_extension(path), "glsl") == 0)
{
strlcpy(glsl_shader->pass[0].source.cg, path, sizeof(glsl_shader->pass[0].source.cg));
glsl_shader->passes = 1;
glsl_shader->modern = true;
ret = true;
}
else if (strcmp(path_get_extension(path), "glslp") == 0)
{
config_file_t *conf = config_file_new(path);
if (conf)
{
ret = gfx_shader_read_conf_cgp(conf, glsl_shader);
glsl_shader->modern = true;
config_file_free(conf);
}
else
ret = false;
}
else
ret = gfx_shader_read_xml(path, glsl_shader);
if (!ret)
{
RARCH_ERR("[GL]: Failed to parse GLSL shader.\n");
return false;
}
}
else
{
RARCH_WARN("[GL]: Stock GLSL shaders will be used.\n");
glsl_shader->passes = 1;
glsl_shader->pass[0].source.xml.vertex = strdup(stock_vertex_modern);
glsl_shader->pass[0].source.xml.fragment = strdup(stock_fragment_modern);
glsl_shader->modern = true;
}
gfx_shader_resolve_relative(glsl_shader, path);
#ifdef HAVE_OPENGLES2
if (!glsl_shader->modern)
{
RARCH_ERR("[GL]: GLES context is used, but shader is not modern. Cannot use it.\n");
return false;
}
#endif
const char *stock_vertex = glsl_shader->modern ?
stock_vertex_modern : stock_vertex_legacy;
const char *stock_fragment = glsl_shader->modern ?
stock_fragment_modern : stock_fragment_legacy;
if (!(gl_program[0] = compile_program(stock_vertex, stock_fragment, 0)))
{
RARCH_ERR("GLSL stock programs failed to compile.\n");
gl_glsl_free_shader();
return false;
}
if (!compile_programs(&gl_program[1]))
{
gl_glsl_free_shader();
return false;
}
if (!load_luts())
{
RARCH_ERR("[GL]: Failed to load LUTs.\n");
gl_glsl_free_shader();
return false;
}
for (unsigned i = 0; i <= glsl_shader->passes; i++)
find_uniforms(gl_program[i], &gl_uniforms[i]);
#ifdef GLSL_DEBUG
if (!gl_check_error())
RARCH_WARN("Detected GL error in GLSL.\n");
#endif
if (glsl_shader->variables)
{
struct state_tracker_info info = {0};
info.wram = (uint8_t*)pretro_get_memory_data(RETRO_MEMORY_SYSTEM_RAM);
info.info = glsl_shader->variable;
info.info_elem = glsl_shader->variables;
#ifdef HAVE_PYTHON
info.script = glsl_shader->script;
info.script_class = *glsl_shader->script_class ?
glsl_shader->script_class : NULL;
#endif
gl_state_tracker = state_tracker_init(&info);
if (!gl_state_tracker)
RARCH_WARN("Failed to init state tracker.\n");
}
glsl_enable = true;
gl_program[glsl_shader->passes + 1] = gl_program[0];
gl_uniforms[glsl_shader->passes + 1] = gl_uniforms[0];
if (glsl_shader->modern)
{
gl_program[GL_SHADER_STOCK_BLEND] = compile_program(stock_vertex_modern_blend,
stock_fragment_modern_blend, GL_SHADER_STOCK_BLEND);
find_uniforms(gl_program[GL_SHADER_STOCK_BLEND], &gl_uniforms[GL_SHADER_STOCK_BLEND]);
}
else
{
gl_program[GL_SHADER_STOCK_BLEND] = gl_program[0];
gl_uniforms[GL_SHADER_STOCK_BLEND] = gl_uniforms[0];
}
gl_glsl_reset_attrib();
return true;
}
