static bool gl_cg_load_plain(void *data, const char *path)
{
cg_shader_data_t *cg = (cg_shader_data_t*)data;
if (!gl_cg_load_stock(cg))
return false;
cg->shader = (struct video_shader*)
calloc(1, sizeof(*cg->shader));
if (!cg->shader)
return false;
cg->shader->passes = 1;
if (path)
{
struct shader_program_info program_info;
program_info.combined = path;
program_info.is_file = true;
RARCH_LOG("Loading Cg file: %s\n", path);
strlcpy(cg->shader->pass[0].source.path, path,
sizeof(cg->shader->pass[0].source.path));
if (!gl_cg_compile_program(data, 1, &cg->prg[1], &program_info))
return false;
}
else
{
RARCH_LOG("Loading stock Cg file.\n");
cg->prg[1] = cg->prg[0];
}
video_shader_resolve_parameters(NULL, cg->shader);
return true;
}
static void gl_cg_init_menu_shaders(void *data)
{
struct shader_program_info shader_prog_info;
cg_shader_data_t *cg = (cg_shader_data_t*)data;
if (!cg)
return;
#ifdef HAVE_SHADERPIPELINE
shader_prog_info.combined = stock_xmb_ribbon_simple;
shader_prog_info.is_file = false;
gl_cg_compile_program(
cg,
VIDEO_SHADER_MENU,
&cg->prg[VIDEO_SHADER_MENU],
&shader_prog_info);
gl_cg_set_program_base_attrib(cg, VIDEO_SHADER_MENU);
shader_prog_info.combined = stock_xmb_ribbon_simple;
shader_prog_info.is_file = false;
gl_cg_compile_program(
cg,
VIDEO_SHADER_MENU_2,
&cg->prg[VIDEO_SHADER_MENU_2],
&shader_prog_info);
gl_cg_set_program_base_attrib(cg, VIDEO_SHADER_MENU_2);
shader_prog_info.combined = stock_xmb_snow;
shader_prog_info.is_file = false;
gl_cg_compile_program(
cg,
VIDEO_SHADER_MENU_3,
&cg->prg[VIDEO_SHADER_MENU_3],
&shader_prog_info);
gl_cg_set_program_base_attrib(cg, VIDEO_SHADER_MENU_3);
#endif
}
static bool gl_cg_load_shader(void *data, unsigned i)
{
struct shader_program_info program_info;
cg_shader_data_t *cg = (cg_shader_data_t*)data;
program_info.combined = cg->shader->pass[i].source.path;
program_info.is_file = true;
RARCH_LOG("Loading Cg shader: \"%s\".\n",
cg->shader->pass[i].source.path);
if (!gl_cg_compile_program(data, i + 1, &cg->prg[i + 1],&program_info))
return false;
return true;
}
static bool gl_cg_load_stock(void *data)
{
struct shader_program_info program_info;
cg_shader_data_t *cg = (cg_shader_data_t*)data;
program_info.combined = stock_cg_gl_program;
program_info.is_file = false;
if (!gl_cg_compile_program(data, 0, &cg->prg[0], &program_info))
goto error;
gl_cg_set_program_base_attrib(data, 0);
return true;
error:
RARCH_ERR("Failed to compile passthrough shader, is something wrong with your environment?\n");
return false;
}
static void *gl_cg_init(void *data, const char *path)
{
unsigned i;
struct shader_program_info shader_prog_info;
cg_shader_data_t *cg = (cg_shader_data_t*)
calloc(1, sizeof(cg_shader_data_t));
if (!cg)
return NULL;
#ifdef HAVE_CG_RUNTIME_COMPILER
cgRTCgcInit();
#endif
cg->cgCtx = cgCreateContext();
if (!cg->cgCtx)
{
RARCH_ERR("Failed to create Cg context.\n");
goto error;
}
#ifdef RARCH_CG_DEBUG
cgGLSetDebugMode(CG_TRUE);
cgSetErrorHandler(cg_error_handler, NULL);
#endif
cg->cgFProf = cgGLGetLatestProfile(CG_GL_FRAGMENT);
cg->cgVProf = cgGLGetLatestProfile(CG_GL_VERTEX);
if (
cg->cgFProf == CG_PROFILE_UNKNOWN ||
cg->cgVProf == CG_PROFILE_UNKNOWN)
{
RARCH_ERR("Invalid profile type\n");
goto error;
}
RARCH_LOG("[Cg]: Vertex profile: %s\n", cgGetProfileString(cg->cgVProf));
RARCH_LOG("[Cg]: Fragment profile: %s\n", cgGetProfileString(cg->cgFProf));
cgGLSetOptimalOptions(cg->cgFProf);
cgGLSetOptimalOptions(cg->cgVProf);
cgGLEnableProfile(cg->cgFProf);
cgGLEnableProfile(cg->cgVProf);
memset(cg->alias_define, 0, sizeof(cg->alias_define));
if (path && string_is_equal(path_get_extension(path), "cgp"))
{
if (!gl_cg_load_preset(cg, path))
goto error;
}
else
{
if (!gl_cg_load_plain(cg, path))
goto error;
}
cg->prg[0].mvp = cgGetNamedParameter(cg->prg[0].vprg, "IN.mvp_matrix");
for (i = 1; i <= cg->shader->passes; i++)
gl_cg_set_program_attributes(cg, i);
/* If we aren't using last pass non-FBO shader,
* this shader will be assumed to be "fixed-function".
*
* Just use prg[0] for that pass, which will be
* pass-through. */
cg->prg[cg->shader->passes + 1] = cg->prg[0];
/* No need to apply Android hack in Cg. */
cg->prg[VIDEO_SHADER_STOCK_BLEND] = cg->prg[0];
gl_cg_set_shaders(cg->prg[1].fprg, cg->prg[1].vprg);
shader_prog_info.combined = stock_xmb_simple;
shader_prog_info.is_file = false;
gl_cg_compile_program(
cg,
VIDEO_SHADER_MENU,
&cg->prg[VIDEO_SHADER_MENU],
&shader_prog_info);
gl_cg_set_program_base_attrib(cg, VIDEO_SHADER_MENU);
shader_prog_info.combined = stock_xmb_simple;
shader_prog_info.is_file = false;
gl_cg_compile_program(
cg,
VIDEO_SHADER_MENU_SEC,
&cg->prg[VIDEO_SHADER_MENU_SEC],
&shader_prog_info);
gl_cg_set_program_base_attrib(cg, VIDEO_SHADER_MENU_SEC);
gl_cg_reset_attrib(cg);
return cg;
error:
gl_cg_destroy_resources(cg);
if (!cg)
free(cg);
return NULL;
}