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Feat[main]: add a workaround to ignore program link errors #29

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Feat[main]: add a workaround to ignore program link errors #29

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3 changes: 2 additions & 1 deletion ltw/src/main/tinywrapper/es3_overrides.h
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Original file line number Diff line number Diff line change
Expand Up @@ -134,4 +134,5 @@ GLESOVERRIDE(glGetError)
GLESOVERRIDE(glTexBuffer)
GLESOVERRIDE(glTexBufferRange)
GLESOVERRIDE(glMapBufferRange)
GLESOVERRIDE(glFlushMappedBufferRange)
GLESOVERRIDE(glFlushMappedBufferRange)
GLESOVERRIDE(glGetProgramiv)
13 changes: 13 additions & 0 deletions ltw/src/main/tinywrapper/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -263,6 +263,7 @@ void glRenderbufferStorage( GLenum target,

static bool never_flush_buffers;
static bool coherent_dynamic_storage;
static bool ignore_linking_errors;

void glBufferStorage(GLenum target,
GLsizeiptr size,
Expand Down Expand Up @@ -447,6 +448,16 @@ void glGetIntegerv(GLenum pname, GLint* data) {
}
}

void glGetProgramiv(GLuint program, GLenum pname, GLint *params){
if(!current_context) return;
es3_functions.glGetProgramiv(program, pname, params);
// HACK: Some drivers fail linking programs due to fragment shader build failures. Let's ignore this so the game at least boots
if(ignore_linking_errors && pname == GL_LINK_STATUS && *params == GL_FALSE){
printf("LTW: Invalid program %u, will pass anyway\n", program);
*params = GL_TRUE;
}
}

void glDepthRange(GLdouble nearVal,
GLdouble farVal) {
if(!current_context) return;
Expand Down Expand Up @@ -499,10 +510,12 @@ __attribute((constructor)) void init_noerror() {
debug = env_istrue("LTW_DEBUG");
never_flush_buffers = env_istrue_d("LTW_NEVER_FLUSH_BUFFERS", true);
coherent_dynamic_storage = env_istrue_d("LTW_COHERENT_DYNAMIC_STORAGE", true);
ignore_linking_errors = env_istrue_d("LTW_IGNORE_LINK_ERRORS", false);
if(!noerror) printf("LTW will NOT ignore GL errors. This may break mods, consider yourself warned.\n");
if(coherent_dynamic_storage) printf("LTW will force dynamic storage buffers to be coherent.\n");
if(debug) printf("LTW will allow GL_DEBUG_OUTPUT to be enabled. Expect massive logs.\n");
if(never_flush_buffers) printf("LTW will prevent all explicit buffer flushes.\n");
if(ignore_linking_errors) printf("LTW will ignore program linking errors. This may cause graphical artifacts\n");
}

GLenum glGetError() {
Expand Down