mirror of
https://github.com/brl/mutter.git
synced 2024-11-29 19:40:43 -05:00
e733889655
* clutter/cogl/cogl-shader.h: Add a function for setting an integer uniform, similar to cogl_program_uniform_1f(). * clutter/cogl/gl/cogl-program.c: Implement the GL version of cogl_program_uniform_1i(). * clutter/cogl/gles/cogl-program.c: Implement the GLES version of cogl_program_uniform_1i().
344 lines
8.0 KiB
C
344 lines
8.0 KiB
C
/*
|
|
* Clutter COGL
|
|
*
|
|
* A basic GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
*
|
|
* Copyright (C) 2008 OpenedHand
|
|
*
|
|
* 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-internal.h"
|
|
#include "cogl-context.h"
|
|
#include "cogl-handle.h"
|
|
|
|
#ifdef HAVE_COGL_GLES2
|
|
|
|
#include <string.h>
|
|
|
|
#include "cogl-shader-private.h"
|
|
#include "cogl-program.h"
|
|
|
|
static void _cogl_program_free (CoglProgram *program);
|
|
|
|
COGL_HANDLE_DEFINE (Program, program, program_handles);
|
|
|
|
static void
|
|
_cogl_program_free (CoglProgram *program)
|
|
{
|
|
int i;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
/* Unref all of the attached shaders */
|
|
g_slist_foreach (program->attached_shaders, (GFunc) cogl_shader_unref, NULL);
|
|
/* Destroy the list */
|
|
g_slist_free (program->attached_shaders);
|
|
|
|
_cogl_gles2_clear_cache_for_program ((CoglHandle) program);
|
|
|
|
if (ctx->gles2.settings.user_program == (CoglHandle) program)
|
|
{
|
|
ctx->gles2.settings.user_program = COGL_INVALID_HANDLE;
|
|
ctx->gles2.settings_dirty = TRUE;
|
|
}
|
|
|
|
for (i = 0; i < COGL_GLES2_NUM_CUSTOM_UNIFORMS; i++)
|
|
if (program->custom_uniform_names[i])
|
|
g_free (program->custom_uniform_names[i]);
|
|
}
|
|
|
|
CoglHandle
|
|
cogl_create_program (void)
|
|
{
|
|
CoglProgram *program;
|
|
|
|
program = g_slice_new (CoglProgram);
|
|
program->ref_count = 1;
|
|
program->attached_shaders = NULL;
|
|
memset (program->custom_uniform_names, 0,
|
|
COGL_GLES2_NUM_CUSTOM_UNIFORMS * sizeof (char *));
|
|
|
|
COGL_HANDLE_DEBUG_NEW (program, program);
|
|
|
|
return _cogl_program_handle_new (program);
|
|
}
|
|
|
|
void
|
|
cogl_program_attach_shader (CoglHandle program_handle,
|
|
CoglHandle shader_handle)
|
|
{
|
|
CoglProgram *program;
|
|
|
|
_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);
|
|
program->attached_shaders
|
|
= g_slist_prepend (program->attached_shaders,
|
|
cogl_shader_ref (shader_handle));
|
|
|
|
/* Whenever the shader changes we will need to relink the program
|
|
with the fixed functionality shaders so we should forget the
|
|
cached programs */
|
|
_cogl_gles2_clear_cache_for_program (program);
|
|
}
|
|
|
|
void
|
|
cogl_program_link (CoglHandle handle)
|
|
{
|
|
/* There's no point in linking the program here because it will have
|
|
to be relinked with a different fixed functionality shader
|
|
whenever the settings change */
|
|
}
|
|
|
|
void
|
|
cogl_program_use (CoglHandle handle)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
if (handle != COGL_INVALID_HANDLE && !cogl_is_program (handle))
|
|
return;
|
|
|
|
ctx->gles2.settings.user_program = handle;
|
|
ctx->gles2.settings_dirty = TRUE;
|
|
}
|
|
|
|
COGLint
|
|
cogl_program_get_uniform_location (CoglHandle handle,
|
|
const gchar *uniform_name)
|
|
{
|
|
int i;
|
|
CoglProgram *program;
|
|
|
|
if (!cogl_is_program (handle))
|
|
return -1;
|
|
|
|
program = _cogl_program_pointer_from_handle (handle);
|
|
|
|
/* We can't just ask the GL program object for the uniform location
|
|
directly because it will change every time the program is linked
|
|
with a new fixed functionality shader. Instead we make our own
|
|
mapping of uniform numbers and cache the names */
|
|
for (i = 0; program->custom_uniform_names[i]
|
|
&& i < COGL_GLES2_NUM_CUSTOM_UNIFORMS; i++)
|
|
if (!strcmp (program->custom_uniform_names[i], uniform_name))
|
|
return i;
|
|
|
|
if (i < COGL_GLES2_NUM_CUSTOM_UNIFORMS)
|
|
{
|
|
program->custom_uniform_names[i] = g_strdup (uniform_name);
|
|
return i;
|
|
}
|
|
else
|
|
/* We've run out of space for new uniform names so just pretend it
|
|
isn't there */
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_1f (COGLint uniform_no,
|
|
gfloat value)
|
|
{
|
|
cogl_program_uniform_float (uniform_no, 1, 1, &value);
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_1i (COGLint uniform_no,
|
|
gint value)
|
|
{
|
|
cogl_program_uniform_int (uniform_no, 1, 1, &value);
|
|
}
|
|
|
|
static void
|
|
cogl_program_uniform_x (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
CoglBoxedType type,
|
|
size_t value_size,
|
|
gconstpointer value)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
if (uniform_no >= 0 && uniform_no < COGL_GLES2_NUM_CUSTOM_UNIFORMS
|
|
&& size >= 1 && size <= 4 && count >= 1)
|
|
{
|
|
CoglBoxedValue *bv = ctx->gles2.custom_uniforms + uniform_no;
|
|
|
|
if (count == 1)
|
|
{
|
|
if (bv->count > 1)
|
|
g_free (bv->v.array);
|
|
|
|
memcpy (bv->v.float_value, value, value_size);
|
|
}
|
|
else
|
|
{
|
|
if (bv->count > 1)
|
|
{
|
|
if (bv->count != count || bv->size != size || bv->type != type)
|
|
{
|
|
g_free (bv->v.array);
|
|
bv->v.array = g_malloc (count * value_size);
|
|
}
|
|
}
|
|
else
|
|
bv->v.array = g_malloc (count * value_size);
|
|
|
|
memcpy (bv->v.array, value, count * value_size);
|
|
}
|
|
|
|
bv->type = type;
|
|
bv->size = size;
|
|
bv->count = count;
|
|
|
|
ctx->gles2.dirty_custom_uniforms |= 1 << uniform_no;
|
|
}
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_float (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
const GLfloat *value)
|
|
{
|
|
cogl_program_uniform_x (uniform_no, size, count, COGL_BOXED_FLOAT,
|
|
sizeof (float) * size, value);
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_int (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
const GLint *value)
|
|
{
|
|
cogl_program_uniform_x (uniform_no, size, count, COGL_BOXED_INT,
|
|
sizeof (gint) * size, value);
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_matrix (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
gboolean transpose,
|
|
const GLfloat *value)
|
|
{
|
|
CoglBoxedValue *bv;
|
|
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
bv = ctx->gles2.custom_uniforms + uniform_no;
|
|
|
|
cogl_program_uniform_x (uniform_no, size, count, COGL_BOXED_MATRIX,
|
|
sizeof (float) * size * size, value);
|
|
|
|
bv->transpose = transpose;
|
|
}
|
|
|
|
#else /* HAVE_COGL_GLES2 */
|
|
|
|
/* No support on regular OpenGL 1.1 */
|
|
|
|
CoglHandle
|
|
cogl_create_program (void)
|
|
{
|
|
return COGL_INVALID_HANDLE;
|
|
}
|
|
|
|
gboolean
|
|
cogl_is_program (CoglHandle handle)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
CoglHandle
|
|
cogl_program_ref (CoglHandle handle)
|
|
{
|
|
return COGL_INVALID_HANDLE;
|
|
}
|
|
|
|
void
|
|
cogl_program_unref (CoglHandle handle)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_attach_shader (CoglHandle program_handle,
|
|
CoglHandle shader_handle)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_link (CoglHandle program_handle)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_use (CoglHandle program_handle)
|
|
{
|
|
}
|
|
|
|
COGLint
|
|
cogl_program_get_uniform_location (CoglHandle program_handle,
|
|
const gchar *uniform_name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_1f (COGLint uniform_no,
|
|
gfloat value)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_float (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
const GLfloat *value)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_int (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
const COGLint *value)
|
|
{
|
|
}
|
|
|
|
void
|
|
cogl_program_uniform_matrix (COGLint uniform_no,
|
|
gint size,
|
|
gint count,
|
|
gboolean transpose,
|
|
const GLfloat *value)
|
|
{
|
|
}
|
|
|
|
|
|
#endif /* HAVE_COGL_GLES2 */
|