141 lines
2.9 KiB
C++
141 lines
2.9 KiB
C++
/* See LICENSE file for copyright and license details. */
|
|
#include <GL/glew.h>
|
|
#include <SDL2/SDL.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "util.h"
|
|
|
|
void *
|
|
ecalloc(size_t nmemb, size_t size)
|
|
{
|
|
void *p;
|
|
|
|
if (!(p = calloc(nmemb, size)))
|
|
die("calloc:");
|
|
return p;
|
|
}
|
|
|
|
void
|
|
die(const char *fmt, ...) {
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
|
|
if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
|
|
fputc(' ', stderr);
|
|
perror(NULL);
|
|
} else {
|
|
fputc('\n', stderr);
|
|
}
|
|
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
infogl(const int verbose)
|
|
{
|
|
#define PBYTE(CHAINE) ( (CHAINE) != NULL ? (CHAINE) : (const GLubyte *) "????" )
|
|
#define PCHAR(CHAINE) ( (CHAINE) != NULL ? (CHAINE) : (const char *) "????" )
|
|
SDL_version linked;
|
|
SDL_GetVersion( &linked );
|
|
printf("// SDL %u.%u.%u\n", linked.major, linked.minor, linked.patch);
|
|
|
|
printf("// OpenGL %s%s\n", PBYTE(glGetString(GL_VERSION)), PBYTE(glGetString(GL_VENDOR)));
|
|
printf("// GPU %s\n", PBYTE(glGetString(GL_RENDERER)));
|
|
printf("// GLSL %s\n", PBYTE(glGetString(GL_SHADING_LANGUAGE_VERSION)));
|
|
|
|
if (verbose)
|
|
printf("// extensions = %s\n", PBYTE(glGetString(GL_EXTENSIONS)));
|
|
#undef PBYTE
|
|
#undef PCHAR
|
|
}
|
|
|
|
void
|
|
sdldie(const char *msg)
|
|
{
|
|
fprintf(stderr, "sdldie: %s: %s\n",msg, SDL_GetError());
|
|
SDL_Quit();
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
sdlerrcheck(int line)
|
|
{
|
|
const char *sdlerror = SDL_GetError();
|
|
if ( *sdlerror != '\0' )
|
|
{
|
|
fprintf(stderr,"SDL Error: l.%d: %s\n",line, sdlerror);
|
|
SDL_ClearError();
|
|
}
|
|
}
|
|
|
|
int
|
|
checkglerr(const char *msg, const int line)
|
|
{
|
|
const char *errors[7] = {
|
|
"GL_INVALID_ENUM",
|
|
"GL_INVALID_VALUE",
|
|
"GL_INVALID_OPERATION",
|
|
"GL_STACK_OVERFLOW",
|
|
"GL_STACK_UNDERFLOW",
|
|
"GL_OUT_OF_MEMORY",
|
|
"GL_INVALID_FRAMEBUFFER_OPERATION",
|
|
};
|
|
int rc = 0;
|
|
GLenum err;
|
|
while ((err = glGetError()) != GL_NO_ERROR)
|
|
{
|
|
if (err >= GL_INVALID_ENUM && err <= GL_INVALID_FRAMEBUFFER_OPERATION)
|
|
fprintf(stderr, "%s l.%d\n", errors[err - GL_INVALID_ENUM], line);
|
|
else
|
|
fprintf(stderr, "Unknown error l.%d\n", line);
|
|
++rc;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
void
|
|
printcomplog(GLuint shaderobj)
|
|
{
|
|
int logl;
|
|
char *log;
|
|
|
|
glGetShaderiv(shaderobj, GL_INFO_LOG_LENGTH, &logl);
|
|
if (logl > 0) {
|
|
log = (char*)malloc(sizeof(char) * logl);
|
|
if (!log)
|
|
die("Cannot allocate %d bytes for shader log\n", logl);
|
|
glGetShaderInfoLog(shaderobj, logl, NULL, log);
|
|
fprintf(stderr, "\n%s\n", log);
|
|
free(log);
|
|
}
|
|
}
|
|
|
|
void
|
|
printprogramlog(GLuint prog)
|
|
{
|
|
int logl;
|
|
char *log;
|
|
|
|
glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &logl);
|
|
if (logl > 0) {
|
|
log = (char*)malloc(sizeof(char) * logl);
|
|
if (!log)
|
|
die("Cannot allocate %d bytes for program log\n", logl);
|
|
glGetProgramInfoLog(prog, logl, NULL, log);
|
|
fprintf(stderr, "\n%s\n", log);
|
|
free(log);
|
|
}
|
|
}
|
|
|
|
void
|
|
debugcallback(GLenum source, GLenum type, GLuint id,
|
|
GLenum severity, GLsizei length, const GLchar* message, const void* userParam)
|
|
{
|
|
printf("%s\n", message);
|
|
}
|