mutter/clutter/cogl/gl/cogl-program.c
Robert Bragg 36cfb60307 [cogl] Remove the COGL{enum,int,uint} typedefs
COGLenum, COGLint and COGLuint which were simply typedefs for GL{enum,int,uint}
have been removed from the API and replaced with specialised enum typedefs, int
and unsigned int. These were causing problems for generating bindings and also
considered poor style.

The cogl texture filter defines CGL_NEAREST and CGL_LINEAR etc are now replaced
by a namespaced typedef 'CoglTextureFilter' so they should be replaced with
COGL_TEXTURE_FILTER_NEAREST and COGL_TEXTURE_FILTER_LINEAR etc.

The shader type defines CGL_VERTEX_SHADER and CGL_FRAGMENT_SHADER are handled by
a CoglShaderType typedef and should be replaced with COGL_SHADER_TYPE_VERTEX and
COGL_SHADER_TYPE_FRAGMENT.

cogl_shader_get_parameteriv has been replaced by cogl_shader_get_type and
cogl_shader_is_compiled. More getters can be added later if desired.
2009-05-12 14:53:44 +01:00

251 lines
7.0 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2008,2009 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl.h"
#include "cogl-program.h"
#include "cogl-shader-private.h"
#include "cogl-internal.h"
#include "cogl-handle.h"
#include "cogl-context.h"
#include <glib.h>
/* Expecting ARB functions not to be defined */
#define glCreateProgramObjectARB ctx->pf_glCreateProgramObjectARB
#define glAttachObjectARB ctx->pf_glAttachObjectARB
#define glUseProgramObjectARB ctx->pf_glUseProgramObjectARB
#define glLinkProgramARB ctx->pf_glLinkProgramARB
#define glGetUniformLocationARB ctx->pf_glGetUniformLocationARB
#define glUniform1fARB ctx->pf_glUniform1fARB
#define glUniform2fARB ctx->pf_glUniform2fARB
#define glUniform3fARB ctx->pf_glUniform3fARB
#define glUniform4fARB ctx->pf_glUniform4fARB
#define glUniform1fvARB ctx->pf_glUniform1fvARB
#define glUniform2fvARB ctx->pf_glUniform2fvARB
#define glUniform3fvARB ctx->pf_glUniform3fvARB
#define glUniform4fvARB ctx->pf_glUniform4fvARB
#define glUniform1iARB ctx->pf_glUniform1iARB
#define glUniform2iARB ctx->pf_glUniform2iARB
#define glUniform3iARB ctx->pf_glUniform3iARB
#define glUniform4iARB ctx->pf_glUniform4iARB
#define glUniform1ivARB ctx->pf_glUniform1ivARB
#define glUniform2ivARB ctx->pf_glUniform2ivARB
#define glUniform3ivARB ctx->pf_glUniform3ivARB
#define glUniform4ivARB ctx->pf_glUniform4ivARB
#define glUniformMatrix2fvARB ctx->pf_glUniformMatrix2fvARB
#define glUniformMatrix3fvARB ctx->pf_glUniformMatrix3fvARB
#define glUniformMatrix4fvARB ctx->pf_glUniformMatrix4fvARB
#define glDeleteObjectARB ctx->pf_glDeleteObjectARB
static void _cogl_program_free (CoglProgram *program);
COGL_HANDLE_DEFINE (Program, program);
static void
_cogl_program_free (CoglProgram *program)
{
/* Frees program resources but its handle is not
released! Do that separately before this! */
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
glDeleteObjectARB (program->gl_handle);
}
CoglHandle
cogl_create_program (void)
{
CoglProgram *program;
_COGL_GET_CONTEXT (ctx, 0);
program = g_slice_new (CoglProgram);
program->gl_handle = glCreateProgramObjectARB ();
return _cogl_program_handle_new (program);
}
void
cogl_program_attach_shader (CoglHandle program_handle,
CoglHandle shader_handle)
{
CoglProgram *program;
CoglShader *shader;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (!cogl_is_program (program_handle) || !cogl_is_shader (shader_handle))
return;
program = _cogl_program_pointer_from_handle (program_handle);
shader = _cogl_shader_pointer_from_handle (shader_handle);
glAttachObjectARB (program->gl_handle, shader->gl_handle);
}
void
cogl_program_link (CoglHandle handle)
{
CoglProgram *program;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (!cogl_is_program (handle))
return;
program = _cogl_program_pointer_from_handle (handle);
glLinkProgramARB (program->gl_handle);
}
void
cogl_program_use (CoglHandle handle)
{
CoglProgram *program;
GLhandleARB gl_handle;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
if (handle != COGL_INVALID_HANDLE && !cogl_is_program (handle))
return;
if (handle == COGL_INVALID_HANDLE)
gl_handle = 0;
else
{
program = _cogl_program_pointer_from_handle (handle);
gl_handle = program->gl_handle;
}
glUseProgramObjectARB (gl_handle);
}
int
cogl_program_get_uniform_location (CoglHandle handle,
const gchar *uniform_name)
{
CoglProgram *program;
_COGL_GET_CONTEXT (ctx, 0);
if (!cogl_is_program (handle))
return 0;
program = _cogl_program_pointer_from_handle (handle);
return glGetUniformLocationARB (program->gl_handle, uniform_name);
}
void
cogl_program_uniform_1f (int uniform_no,
gfloat value)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
glUniform1fARB (uniform_no, value);
}
void
cogl_program_uniform_1i (int uniform_no,
gint value)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
glUniform1iARB (uniform_no, value);
}
void
cogl_program_uniform_float (int uniform_no,
gint size,
gint count,
const GLfloat *value)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
switch (size)
{
case 1:
glUniform1fvARB (uniform_no, count, value);
break;
case 2:
glUniform2fvARB (uniform_no, count, value);
break;
case 3:
glUniform3fvARB (uniform_no, count, value);
break;
case 4:
glUniform4fvARB (uniform_no, count, value);
break;
default:
g_warning ("%s called with invalid size parameter", G_STRFUNC);
}
}
void
cogl_program_uniform_int (int uniform_no,
gint size,
gint count,
const int *value)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
switch (size)
{
case 1:
glUniform1ivARB (uniform_no, count, value);
break;
case 2:
glUniform2ivARB (uniform_no, count, value);
break;
case 3:
glUniform3ivARB (uniform_no, count, value);
break;
case 4:
glUniform4ivARB (uniform_no, count, value);
break;
default:
g_warning ("%s called with invalid size parameter", G_STRFUNC);
}
}
void
cogl_program_uniform_matrix (int uniform_no,
gint size,
gint count,
gboolean transpose,
const GLfloat *value)
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
switch (size)
{
case 2 :
glUniformMatrix2fvARB (uniform_no, count, transpose, value);
break;
case 3 :
glUniformMatrix3fvARB (uniform_no, count, transpose, value);
break;
case 4 :
glUniformMatrix4fvARB (uniform_no, count, transpose, value);
break;
default :
g_warning ("%s called with invalid size parameter", G_STRFUNC);
}
}