static bool gl_glsl_compile_program(
void *data,
unsigned idx,
void *program_data,
struct shader_program_info *program_info)
{
glsl_shader_data_t *glsl = (glsl_shader_data_t*)data;
struct shader_program_glsl_data *program = (struct shader_program_glsl_data*)program_data;
GLuint prog = glCreateProgram();
if (!program)
program = &glsl->prg[idx];
if (!prog)
goto error;
if (program_info->vertex)
{
RARCH_LOG("[GLSL]: Found GLSL vertex shader.\n");
program->vprg = glCreateShader(GL_VERTEX_SHADER);
if (!gl_glsl_compile_shader(
glsl,
program->vprg,
"#define VERTEX\n#define PARAMETER_UNIFORM\n", program_info->vertex))
{
RARCH_ERR("Failed to compile vertex shader #%u\n", idx);
goto error;
}
glAttachShader(prog, program->vprg);
}
if (program_info->fragment)
{
RARCH_LOG("[GLSL]: Found GLSL fragment shader.\n");
program->fprg = glCreateShader(GL_FRAGMENT_SHADER);
if (!gl_glsl_compile_shader(glsl, program->fprg,
"#define FRAGMENT\n#define PARAMETER_UNIFORM\n", program_info->fragment))
{
RARCH_ERR("Failed to compile fragment shader #%u\n", idx);
goto error;
}
glAttachShader(prog, program->fprg);
}
if (program_info->vertex || program_info->fragment)
{
RARCH_LOG("[GLSL]: Linking GLSL program.\n");
if (!gl_glsl_link_program(prog))
goto error;
/* Clean up dead memory. We're not going to relink the program.
* Detaching first seems to kill some mobile drivers
* (according to the intertubes anyways). */
if (program->vprg)
glDeleteShader(program->vprg);
if (program->fprg)
glDeleteShader(program->fprg);
program->vprg = 0;
program->fprg = 0;
glUseProgram(prog);
glUniform1i(gl_glsl_get_uniform(glsl, prog, "Texture"), 0);
glUseProgram(0);
}
program->id = prog;
return true;
error:
RARCH_ERR("Failed to link program #%u.\n", idx);
program->id = 0;
return false;
}
static GLuint gl_glsl_compile_program(glsl_shader_data_t *glsl,
const char *vertex,
const char *fragment, unsigned i)
{
GLuint vert = 0, frag = 0, prog = glCreateProgram();
if (!prog)
return 0;
if (vertex)
{
RARCH_LOG("Found GLSL vertex shader.\n");
vert = glCreateShader(GL_VERTEX_SHADER);
if (!gl_glsl_compile_shader(
glsl,
vert, "#define VERTEX\n#define PARAMETER_UNIFORM\n", vertex))
{
RARCH_ERR("Failed to compile vertex shader #%u\n", i);
return 0;
}
glAttachShader(prog, vert);
}
if (fragment)
{
RARCH_LOG("Found GLSL fragment shader.\n");
frag = glCreateShader(GL_FRAGMENT_SHADER);
if (!gl_glsl_compile_shader(glsl, frag,
"#define FRAGMENT\n#define PARAMETER_UNIFORM\n", fragment))
{
RARCH_ERR("Failed to compile fragment shader #%u\n", i);
return 0;
}
glAttachShader(prog, frag);
}
if (vertex || fragment)
{
RARCH_LOG("Linking GLSL program.\n");
if (!gl_glsl_link_program(prog))
{
RARCH_ERR("Failed to link program #%u.\n", i);
return 0;
}
/* Clean up dead memory. We're not going to relink the program.
* Detaching first seems to kill some mobile drivers
* (according to the intertubes anyways). */
if (vert)
glDeleteShader(vert);
if (frag)
glDeleteShader(frag);
glUseProgram(prog);
glUniform1i(gl_glsl_get_uniform(glsl, prog, "Texture"), 0);
glUseProgram(0);
}
return prog;
}