/*
* Create shader, load in source, compile, dump debug as necessary.
*
* shader: Pointer to return created shader ID.
* source: Passed-in shader source code.
* shader_type: Passed to GL, e.g. GL_VERTEX_SHADER.
*/
void
process_shader(GLuint *shader, const char * source, GLint shader_type)
{
GLint status = GL_FALSE;
const char *shaders[1] = { NULL };
char buffer[1024];
GLsizei length;
/* Create shader and load into GL. */
*shader = GL_CHECK(ctx.glCreateShader(shader_type));
shaders[0] = source;
GL_CHECK(ctx.glShaderSource(*shader, 1, shaders, NULL));
/* Clean up shader source. */
shaders[0] = NULL;
/* Try compiling the shader. */
GL_CHECK(ctx.glCompileShader(*shader));
GL_CHECK(ctx.glGetShaderiv(*shader, GL_COMPILE_STATUS, &status));
/* Dump debug info (source and log) if compilation failed. */
if(status != GL_TRUE) {
ctx.glGetProgramInfoLog(*shader, sizeof(buffer), &length, &buffer[0]);
buffer[length] = '\0';
SDL_Log("Shader compilation failed: %s", buffer);fflush(stderr);
quit(-1);
}
}
/*
* Create shader, load in source, compile, dump debug as necessary.
*
* shader: Pointer to return created shader ID.
* source: Passed-in shader source code.
* shader_type: Passed to GL, e.g. GL_VERTEX_SHADER.
*/
void
process_shader(GLuint *shader, const char * source, GLint shader_type)
{
GLint status = GL_FALSE;
const char *shaders[1] = { NULL };
/* Create shader and load into GL. */
*shader = GL_CHECK(ctx.glCreateShader(shader_type));
shaders[0] = source;
GL_CHECK(ctx.glShaderSource(*shader, 1, shaders, NULL));
/* Clean up shader source. */
shaders[0] = NULL;
/* Try compiling the shader. */
GL_CHECK(ctx.glCompileShader(*shader));
GL_CHECK(ctx.glGetShaderiv(*shader, GL_COMPILE_STATUS, &status));
// Dump debug info (source and log) if compilation failed.
if(status != GL_TRUE) {
SDL_Log("Shader compilation failed");
quit(-1);
}
}
