/*
 * Copyright 2009 Maciej Cencora <m.cencora@gmail.com>
 *
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include "main/glheader.h"

#include "shader/program.h"
#include "tnl/tnl.h"
#include "r300_context.h"
#include "r300_fragprog_common.h"

static struct gl_program *r300NewProgram(GLcontext * ctx, GLenum target,
					 GLuint id)
{
	struct r300_vertex_program_cont *vp;
	struct r300_fragment_program *fp;

	switch (target) {
	case GL_VERTEX_STATE_PROGRAM_NV:
	case GL_VERTEX_PROGRAM_ARB:
		vp = CALLOC_STRUCT(r300_vertex_program_cont);
		return _mesa_init_vertex_program(ctx, &vp->mesa_program,
						 target, id);

	case GL_FRAGMENT_PROGRAM_NV:
	case GL_FRAGMENT_PROGRAM_ARB:
		fp = CALLOC_STRUCT(r300_fragment_program);
		return _mesa_init_fragment_program(ctx, &fp->Base, target, id);

	default:
		_mesa_problem(ctx, "Bad target in r300NewProgram");
	}

	return NULL;
}

static void r300DeleteProgram(GLcontext * ctx, struct gl_program *prog)
{
	_mesa_delete_program(ctx, prog);
}

static void
r300ProgramStringNotify(GLcontext * ctx, GLenum target, struct gl_program *prog)
{
	struct r300_vertex_program_cont *vp = (void *)prog;
	struct r300_fragment_program *r300_fp = (struct r300_fragment_program *)prog;

	switch (target) {
	case GL_VERTEX_PROGRAM_ARB:
		vp->progs = NULL;
		break;
	case GL_FRAGMENT_PROGRAM_ARB:
		r300_fp->translated = GL_FALSE;
		break;
	}

	/* need this for tcl fallbacks */
	_tnl_program_string(ctx, target, prog);
}

static GLboolean
r300IsProgramNative(GLcontext * ctx, GLenum target, struct gl_program *prog)
{
	if (target == GL_FRAGMENT_PROGRAM_ARB) {
		struct r300_fragment_program *fp = (struct r300_fragment_program *)prog;
		if (!fp->translated)
			r300TranslateFragmentShader(ctx, &fp->Base);

		return !fp->error;
	} else
		return GL_TRUE;
}

void r300InitShaderFuncs(struct dd_function_table *functions)
{
	functions->NewProgram = r300NewProgram;
	functions->DeleteProgram = r300DeleteProgram;
	functions->ProgramStringNotify = r300ProgramStringNotify;
	functions->IsProgramNative = r300IsProgramNative;
}