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make sure we #define after #version

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This commit is contained in:
FunkyFr3sh 2018-05-12 18:16:17 +02:00
parent 87450e320f
commit f5384dc560
1 changed files with 36 additions and 8 deletions
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44
src/opengl.c
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@ -157,11 +157,8 @@ GLuint OpenGL_BuildProgram(const GLchar *vertSource, const GLchar *fragSource)
if (!vertShader || !fragShader)
return 0;
const GLchar *vertSrc[2] = { "#define VERTEX\n", vertSource };
const GLchar *fragSrc[2] = { "#define FRAGMENT\n", fragSource };
glShaderSource(vertShader, 2, vertSrc, NULL);
glShaderSource(fragShader, 2, fragSrc, NULL);
glShaderSource(vertShader, 1, &vertSource, NULL);
glShaderSource(fragShader, 1, &fragSource, NULL);
GLint isCompiled = 0;
@ -232,15 +229,46 @@ GLuint OpenGL_BuildProgramFromFile(const char *filePath)
long fileSize = ftell(file);
fseek(file, 0, SEEK_SET);
char *source = malloc(fileSize + 1);
char *source = calloc(fileSize + 1, 1);
if (source)
{
fread(source, fileSize, 1, file);
fclose(file);
source[fileSize] = 0;
char *vertSource = calloc(fileSize + 50, 1);
char *fragSource = calloc(fileSize + 50, 1);
if (fragSource && vertSource)
{
const char *versionStart = strstr(source, "#version");
if (versionStart)
{
const char deli[2] = "\n";
char *version = strtok(versionStart, deli);
strcpy(vertSource, source);
strcpy(fragSource, source);
strcat(vertSource, "\n#define VERTEX\n");
strcat(fragSource, "\n#define FRAGMENT\n");
strcat(vertSource, version + strlen(version) + 1);
strcat(fragSource, version + strlen(version) + 1);
program = OpenGL_BuildProgram(vertSource, fragSource);
}
else
{
strcpy(vertSource, "#define VERTEX\n");
strcpy(fragSource, "#define FRAGMENT\n");
strcat(vertSource, source);
strcat(fragSource, source);
program = OpenGL_BuildProgram(vertSource, fragSource);
}
free(vertSource);
free(fragSource);
}
program = OpenGL_BuildProgram(source, source);
free(source);
}
}