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cogl-vertex-attribute: Use glVertexAttribPointer on GLES2

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When the GLES2 wrapper is removed we can't use the fixed function API
such as glColorPointer to set the builtin attributes. Instead the GLSL
progend now maintains a cache of attribute locations that are queried
with glGetAttribLocation. The code that previously maintained a cache
of the enabled texture coord arrays has been modified to also cache
the enabled vertex attributes under GLES2. The vertex attribute API is
now the only place that is using this cache so it has been moved into
cogl-vertex-attribute.c
This commit is contained in:
Neil Roberts
2010-12-03 17:46:16 +00:00
parent 12b3d21aaa
commit e38e9e0355
11 changed files with 455 additions and 138 deletions
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30
cogl/cogl-pipeline-opengl.c
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@ -37,6 +37,11 @@
#include "cogl-context.h"
#include "cogl-texture-private.h"
/* This is needed to set the color attribute on GLES2 */
#ifdef HAVE_COGL_GLES2
#include "cogl-pipeline-progend-glsl-private.h"
#endif
#include <glib.h>
#include <string.h>
@ -477,6 +482,8 @@ _cogl_pipeline_flush_color_blend_alpha_depth_state (
{
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
/* On GLES2 we'll flush the color later */
#ifndef HAVE_COGL_GLES2
if (!skip_gl_color)
{
if ((pipelines_difference & COGL_PIPELINE_STATE_COLOR) ||
@ -492,6 +499,7 @@ _cogl_pipeline_flush_color_blend_alpha_depth_state (
cogl_color_get_alpha_byte (&authority->color)));
}
}
#endif
if (pipelines_difference & COGL_PIPELINE_STATE_BLEND)
{
@ -1091,7 +1099,6 @@ _cogl_pipeline_flush_gl_state (CoglPipeline *pipeline,
* 2) then foreach layer:
* determine gl_target/gl_texture
* bind texture
* flush user matrix
*
* Note: After _cogl_pipeline_flush_common_gl_state you can expect
* all state of the layers corresponding texture unit to be
@ -1232,6 +1239,27 @@ _cogl_pipeline_flush_gl_state (CoglPipeline *pipeline,
done:
/* We can't assume the color will be retained between flushes on
GLES2 because the generic attribute values are not stored as part
of the program object so they could be overridden by any
attribute changes in another program */
#ifdef HAVE_COGL_GLES2
if (!skip_gl_color)
{
int attribute;
CoglPipeline *authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_COLOR);
attribute = _cogl_pipeline_progend_glsl_get_color_attribute (pipeline);
if (attribute != -1)
GE (glVertexAttrib4f (attribute,
cogl_color_get_red_float (&authority->color),
cogl_color_get_green_float (&authority->color),
cogl_color_get_blue_float (&authority->color),
cogl_color_get_alpha_float (&authority->color)));
}
#endif
/* Handle the fact that OpenGL associates texture filter and wrap
* modes with the texture objects not the texture units... */
foreach_texture_unit_update_filter_and_wrap_modes ();