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fix version directives in GLSL shaders, courtesy of aliaspider

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This commit is contained in:
hunterk 2017-05-09 23:20:00 -05:00
parent ed2dedb233
commit 7f8d4479f4
1 changed files with 20 additions and 1 deletions
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21
gfx/drivers_shader/shader_glsl.c
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@ -257,10 +257,29 @@ static bool gl_glsl_compile_shader(glsl_shader_data_t *glsl,
GLint status;
const char *source[4];
char version[32];
const char* existing_version;
version[0] = '\0';
existing_version = strstr(program, "#version");
if (glsl_core && !strstr(program, "#version"))
if(existing_version)
{
int len = 8;
while(existing_version[len] && isspace(existing_version[len]))
len++;
while(existing_version[len] && !isspace(existing_version[len]))
len++;
program = existing_version + len;
if(len > (sizeof(version) - 2))
len = sizeof(version) - 2;
strncpy(version, existing_version, len);
version[len] = '\n';
version[len + 1] = '\0';
}
else if (glsl_core)
{
unsigned version_no = 0;
unsigned gl_ver = glsl_major * 100 + glsl_minor * 10;