mirror of
https://github.com/brl/mutter.git
synced 2024-12-25 20:32:16 +00:00
5d62185f1c
As part of an effort towards being able to write non-opengl based backends for Cogl this moves most of the opengl specific code under drivers/gl. drivers/gl and drivers/gles have been moved to drivers/gl/gl and drivers/gl/es respectively. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 7dc482facb0a265c7f48660079e7e12dd7a2813e)
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2008,2009,2010 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, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Neil Roberts <neil@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-pipeline-private.h"
|
|
#include "cogl-pipeline-state-private.h"
|
|
#include "cogl-pipeline-opengl-private.h"
|
|
#include "cogl-framebuffer-private.h"
|
|
|
|
#ifdef COGL_PIPELINE_VERTEND_FIXED
|
|
|
|
#include "cogl-internal.h"
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-program-private.h"
|
|
|
|
const CoglPipelineVertend _cogl_pipeline_fixed_vertend;
|
|
|
|
static CoglBool
|
|
_cogl_pipeline_vertend_fixed_start (CoglPipeline *pipeline,
|
|
int n_layers,
|
|
unsigned long pipelines_difference,
|
|
int n_tex_coord_attribs)
|
|
{
|
|
CoglProgram *user_program;
|
|
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
|
|
if (G_UNLIKELY (COGL_DEBUG_ENABLED (COGL_DEBUG_DISABLE_FIXED)))
|
|
return FALSE;
|
|
|
|
if (ctx->driver == COGL_DRIVER_GLES2)
|
|
return FALSE;
|
|
|
|
/* Vertex snippets are only supported in the GLSL fragend */
|
|
if (_cogl_pipeline_has_vertex_snippets (pipeline))
|
|
return FALSE;
|
|
|
|
/* If there is a user program with a vertex shader then the
|
|
appropriate backend for that language should handle it. We can
|
|
still use the fixed vertex backend if the program only contains
|
|
a fragment shader */
|
|
user_program = cogl_pipeline_get_user_program (pipeline);
|
|
if (user_program != COGL_INVALID_HANDLE &&
|
|
_cogl_program_has_vertex_shader (user_program))
|
|
return FALSE;
|
|
|
|
_cogl_use_vertex_program (0, COGL_PIPELINE_PROGRAM_TYPE_FIXED);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_pipeline_vertend_fixed_add_layer (CoglPipeline *pipeline,
|
|
CoglPipelineLayer *layer,
|
|
unsigned long layers_difference,
|
|
CoglFramebuffer *framebuffer)
|
|
{
|
|
CoglContext *ctx = framebuffer->context;
|
|
int unit_index = _cogl_pipeline_layer_get_unit_index (layer);
|
|
CoglTextureUnit *unit = _cogl_get_texture_unit (unit_index);
|
|
|
|
if (layers_difference & COGL_PIPELINE_LAYER_STATE_USER_MATRIX)
|
|
{
|
|
CoglPipelineLayerState state = COGL_PIPELINE_LAYER_STATE_USER_MATRIX;
|
|
CoglPipelineLayer *authority =
|
|
_cogl_pipeline_layer_get_authority (layer, state);
|
|
CoglMatrixEntry *matrix_entry;
|
|
|
|
_cogl_matrix_stack_set (unit->matrix_stack,
|
|
&authority->big_state->matrix);
|
|
|
|
_cogl_set_active_texture_unit (unit_index);
|
|
|
|
matrix_entry = unit->matrix_stack->last_entry;
|
|
_cogl_matrix_entry_flush_to_gl_builtins (ctx, matrix_entry,
|
|
COGL_MATRIX_TEXTURE,
|
|
framebuffer,
|
|
FALSE /* enable flip */);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_pipeline_vertend_fixed_end (CoglPipeline *pipeline,
|
|
unsigned long pipelines_difference)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, FALSE);
|
|
|
|
if (pipelines_difference & COGL_PIPELINE_STATE_POINT_SIZE)
|
|
{
|
|
CoglPipeline *authority =
|
|
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_POINT_SIZE);
|
|
|
|
GE( ctx, glPointSize (authority->big_state->point_size) );
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
const CoglPipelineVertend _cogl_pipeline_fixed_vertend =
|
|
{
|
|
_cogl_pipeline_vertend_fixed_start,
|
|
_cogl_pipeline_vertend_fixed_add_layer,
|
|
_cogl_pipeline_vertend_fixed_end,
|
|
NULL, /* pipeline_change_notify */
|
|
NULL /* layer_change_notify */
|
|
};
|
|
|
|
#endif /* COGL_PIPELINE_VERTEND_FIXED */
|
|
|