framebuffer: remove attribute drawing apis

Almost nothing draws attributes directly and for those things that do
it's trivial to adapt them to instead draw via the cogl_primitive api.
This simplifies the Cogl api a bit.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 7395925bcc01aad6c695fd0d9af78b784b3c64d4)

Conflicts:
	cogl/cogl-framebuffer.c
	cogl/cogl-framebuffer.h
This commit is contained in:
Robert Bragg 2013-07-10 00:39:18 +01:00 committed by Neil Roberts
parent e9f721216e
commit e4f24dba75
10 changed files with 78 additions and 402 deletions

View File

@ -2408,57 +2408,6 @@ _cogl_framebuffer_draw_attributes (CoglFramebuffer *framebuffer,
}
}
void
cogl_framebuffer_draw_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglAttribute **attributes,
int n_attributes)
{
_cogl_framebuffer_draw_attributes (framebuffer,
pipeline,
mode,
first_vertex,
n_vertices,
attributes, n_attributes,
COGL_DRAW_SKIP_LEGACY_STATE);
}
void
cogl_framebuffer_vdraw_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
...)
{
va_list ap;
int n_attributes;
CoglAttribute *attribute;
CoglAttribute **attributes;
int i;
va_start (ap, n_vertices);
for (n_attributes = 0; va_arg (ap, CoglAttribute *); n_attributes++)
;
va_end (ap);
attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes);
va_start (ap, n_vertices);
for (i = 0; (attribute = va_arg (ap, CoglAttribute *)); i++)
attributes[i] = attribute;
va_end (ap);
_cogl_framebuffer_draw_attributes (framebuffer,
pipeline,
mode, first_vertex, n_vertices,
attributes, n_attributes,
COGL_DRAW_SKIP_LEGACY_STATE);
}
void
_cogl_framebuffer_draw_indexed_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
@ -2498,62 +2447,6 @@ _cogl_framebuffer_draw_indexed_attributes (CoglFramebuffer *framebuffer,
}
}
void
cogl_framebuffer_draw_indexed_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglIndices *indices,
CoglAttribute **attributes,
int n_attributes)
{
_cogl_framebuffer_draw_indexed_attributes (framebuffer,
pipeline,
mode, first_vertex,
n_vertices, indices,
attributes, n_attributes,
COGL_DRAW_SKIP_LEGACY_STATE);
}
void
cogl_framebuffer_vdraw_indexed_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglIndices *indices,
...)
{
va_list ap;
int n_attributes;
CoglAttribute **attributes;
int i;
CoglAttribute *attribute;
va_start (ap, indices);
for (n_attributes = 0; va_arg (ap, CoglAttribute *); n_attributes++)
;
va_end (ap);
attributes = g_alloca (sizeof (CoglAttribute *) * n_attributes);
va_start (ap, indices);
for (i = 0; (attribute = va_arg (ap, CoglAttribute *)); i++)
attributes[i] = attribute;
va_end (ap);
_cogl_framebuffer_draw_indexed_attributes (framebuffer,
pipeline,
mode,
first_vertex,
n_vertices,
indices,
attributes,
n_attributes,
COGL_DRAW_SKIP_LEGACY_STATE);
}
void
cogl_framebuffer_draw_primitive (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,

View File

@ -1120,218 +1120,6 @@ cogl_framebuffer_draw_primitive (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglPrimitive *primitive);
/**
* cogl_framebuffer_vdraw_attributes:
* @framebuffer: A destination #CoglFramebuffer
* @pipeline: A #CoglPipeline state object
* @mode: The #CoglVerticesMode defining the topology of vertices
* @first_vertex: The vertex offset within the given attributes to draw from
* @n_vertices: The number of vertices to draw from the given attributes
* @...: A set of vertex #CoglAttribute<!-- -->s defining vertex geometry
*
* First defines a geometry primitive by grouping a set of vertex attributes;
* specifying a @first_vertex; a number of vertices (@n_vertices) and
* specifying what kind of topology the vertices have via @mode.
*
* Then the function draws the given @primitive geometry to the specified
* destination @framebuffer using the graphics processing pipeline described by
* @pipeline.
*
* The list of #CoglAttribute<!-- -->s define the attributes of the vertices to
* be drawn, such as positions, colors and normals and should be %NULL
* terminated.
*
* This drawing api doesn't support high-level meta texture types such
* as #CoglTexture2DSliced so it is the user's responsibility to
* ensure that only low-level textures that can be directly sampled by
* a GPU such as #CoglTexture2D, #CoglTextureRectangle or #CoglTexture3D
* are associated with layers of the given @pipeline.
*
* Stability: unstable
* Since: 1.10
*/
void
cogl_framebuffer_vdraw_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
...) COGL_GNUC_NULL_TERMINATED;
/**
* cogl_framebuffer_draw_attributes:
* @framebuffer: A destination #CoglFramebuffer
* @pipeline: A #CoglPipeline state object
* @mode: The #CoglVerticesMode defining the topology of vertices
* @first_vertex: The vertex offset within the given attributes to draw from
* @n_vertices: The number of vertices to draw from the given attributes
* @attributes: An array of pointers to #CoglAttribute<-- -->s defining vertex
* geometry
* @n_attributes: The number of attributes in the @attributes array.
*
* First defines a geometry primitive by grouping a set of vertex @attributes;
* specifying a @first_vertex; a number of vertices (@n_vertices) and
* specifying what kind of topology the vertices have via @mode.
*
* Then the function draws the given @primitive geometry to the specified
* destination @framebuffer using the graphics processing pipeline described by
* @pipeline.
*
* The list of #CoglAttribute<!-- -->s define the attributes of the vertices to
* be drawn, such as positions, colors and normals and the number of attributes
* is given as @n_attributes.
*
* This drawing api doesn't support high-level meta texture types such
* as #CoglTexture2DSliced so it is the user's responsibility to
* ensure that only low-level textures that can be directly sampled by
* a GPU such as #CoglTexture2D, #CoglTextureRectangle or #CoglTexture3D
* are associated with layers of the given @pipeline.
*
* <note>This api doesn't support any of the legacy global state options such
* as cogl_set_depth_test_enabled(), cogl_set_backface_culling_enabled() or
* cogl_program_use()</note>
*
* Stability: unstable
* Since: 1.10
*/
void
cogl_framebuffer_draw_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglAttribute **attributes,
int n_attributes);
/**
* cogl_framebuffer_vdraw_indexed_attributes:
* @framebuffer: A destination #CoglFramebuffer
* @pipeline: A #CoglPipeline state object
* @mode: The #CoglVerticesMode defining the topology of vertices
* @first_vertex: The vertex offset within the given attributes to draw from
* @n_vertices: The number of vertices to draw from the given attributes
* @indices: The array of indices used by the GPU to lookup attribute
* data for each vertex.
* @...: A set of vertex #CoglAttribute<!-- -->s defining vertex geometry
*
* Behaves the same as cogl_framebuffer_vdraw_attributes() except that
* instead of reading vertex data sequentially from the specified
* attributes the @indices provide an indirection for how the data
* should be indexed allowing a random access order to be
* specified.
*
* For example an indices array of [0, 1, 2, 0, 2, 3] could be used
* used to draw two triangles (@mode = %COGL_VERTICES_MODE_TRIANGLES +
* @n_vertices = 6) but only provide attribute data for the 4 corners
* of a rectangle. When the GPU needs to read in each of the 6
* vertices it will read the @indices array for each vertex in
* sequence and use the index to look up the vertex attribute data. So
* here you can see that first and fourth vertex will point to the
* same data and third and fifth vertex will also point to shared
* data.
*
* Drawing with indices can be a good way of minimizing the size of a
* mesh by allowing you to avoid data for duplicate vertices because
* multiple entries in the index array can refer back to a single
* shared vertex.
*
* <note>The @indices array must be at least as long as @first_vertex
* + @n_vertices otherwise the GPU will overrun the indices array when
* looking up vertex data.</note>
*
* Since it's very common to want to draw a run of rectangles using
* indices to avoid duplicating vertex data you can use
* cogl_get_rectangle_indices() to get a set of indices that can be
* shared.
*
* This drawing api doesn't support high-level meta texture types such
* as #CoglTexture2DSliced so it is the user's responsibility to
* ensure that only low-level textures that can be directly sampled by
* a GPU such as #CoglTexture2D, #CoglTextureRectangle or
* #CoglTexture3D are associated with layers of the given @pipeline.
*
* <note>This api doesn't support any of the legacy global state
* options such as cogl_set_depth_test_enabled(),
* cogl_set_backface_culling_enabled() or cogl_program_use()</note>
*
* Stability: unstable
* Since: 1.10
*/
void
cogl_framebuffer_vdraw_indexed_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglIndices *indices,
...) COGL_GNUC_NULL_TERMINATED;
/**
* cogl_framebuffer_draw_indexed_attributes:
* @framebuffer: A destination #CoglFramebuffer
* @pipeline: A #CoglPipeline state object
* @mode: The #CoglVerticesMode defining the topology of vertices
* @first_vertex: The vertex offset within the given attributes to draw from
* @n_vertices: The number of vertices to draw from the given attributes
* @indices: The array of indices used by the GPU to lookup attribute
* data for each vertex.
* @attributes: An array of pointers to #CoglAttribute<-- -->s defining vertex
* geometry
* @n_attributes: The number of attributes in the @attributes array.
*
* Behaves the same as cogl_framebuffer_draw_attributes() except that
* instead of reading vertex data sequentially from the specified
* @attributes the @indices provide an indirection for how the data
* should be indexed allowing a random access order to be
* specified.
*
* For example an indices array of [0, 1, 2, 0, 2, 3] could be used
* used to draw two triangles (@mode = %COGL_VERTICES_MODE_TRIANGLES +
* @n_vertices = 6) but only provide attribute data for the 4 corners
* of a rectangle. When the GPU needs to read in each of the 6
* vertices it will read the @indices array for each vertex in
* sequence and use the index to look up the vertex attribute data. So
* here you can see that first and fourth vertex will point to the
* same data and third and fifth vertex will also point to shared
* data.
*
* Drawing with indices can be a good way of minimizing the size of a
* mesh by allowing you to avoid data for duplicate vertices because
* multiple entries in the index array can refer back to a single
* shared vertex.
*
* <note>The @indices array must be at least as long as @first_vertex
* + @n_vertices otherwise the GPU will overrun the indices array when
* looking up vertex data.</note>
*
* Since it's very common to want to draw a run of rectangles using
* indices to avoid duplicating vertex data you can use
* cogl_get_rectangle_indices() to get a set of indices that can be
* shared.
*
* This drawing api doesn't support high-level meta texture types such
* as #CoglTexture2DSliced so it is the user's responsibility to
* ensure that only low-level textures that can be directly sampled by
* a GPU such as #CoglTexture2D, #CoglTextureRectangle or
* #CoglTexture3D are associated with layers of the given @pipeline.
*
* <note>This api doesn't support any of the legacy global state
* options such as cogl_set_depth_test_enabled(),
* cogl_set_backface_culling_enabled() or cogl_program_use()</note>
*
* Stability: unstable
* Since: 1.10
*/
void
cogl_framebuffer_draw_indexed_attributes (CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglVerticesMode mode,
int first_vertex,
int n_vertices,
CoglIndices *indices,
CoglAttribute **attributes,
int n_attributes);
/**
* cogl_framebuffer_draw_rectangle:
* @framebuffer: A destination #CoglFramebuffer
@ -1391,9 +1179,8 @@ cogl_framebuffer_draw_rectangle (CoglFramebuffer *framebuffer,
* #CoglMetaTexture texture such as #CoglTexture2DSliced textures
* which may internally be comprised of multiple low-level textures.
* This is unlike low-level drawing apis such as cogl_primitive_draw()
* or cogl_framebuffer_draw_attributes() which only support low level
* texture types that are directly supported by GPUs such as
* #CoglTexture2D.
* which only support low level texture types that are directly
* supported by GPUs such as #CoglTexture2D.
*
* <note>The given texture coordinates will only be used for the first
* texture layer of the pipeline and if your pipeline has more than
@ -1456,9 +1243,8 @@ cogl_framebuffer_draw_textured_rectangle (CoglFramebuffer *framebuffer,
* #CoglMetaTexture texture for the first layer such as
* #CoglTexture2DSliced textures which may internally be comprised of
* multiple low-level textures. This is unlike low-level drawing apis
* such as cogl_primitive_draw() or cogl_framebuffer_draw_attributes()
* which only support low level texture types that are directly
* supported by GPUs such as #CoglTexture2D.
* such as cogl_primitive_draw() which only support low level texture
* types that are directly supported by GPUs such as #CoglTexture2D.
*
* <note>This api can not currently handle multiple high-level meta
* texture layers. The first layer may be a high level meta texture
@ -1564,9 +1350,8 @@ cogl_framebuffer_draw_rectangles (CoglFramebuffer *framebuffer,
* #CoglMetaTexture texture such as #CoglTexture2DSliced textures
* which may internally be comprised of multiple low-level textures.
* This is unlike low-level drawing apis such as cogl_primitive_draw()
* or cogl_framebuffer_draw_attributes() which only support low level
* texture types that are directly supported by GPUs such as
* #CoglTexture2D.
* which only support low level texture types that are directly
* supported by GPUs such as #CoglTexture2D.
*
* The top left corner of the first rectangle is positioned at
* (coordinates[0], coordinates[1]) and the bottom right corner is

View File

@ -66,10 +66,10 @@ COGL_BEGIN_DECLS
* Cogl doesn't aim to pretend that meta-textures are just like real
* textures because it would get extremely complex to try and emulate
* low-level GPU semantics transparently for these textures. The low
* level drawing APIs of Cogl, such as cogl_framebuffer_draw_attributes()
* don't actually know anything about the #CoglMetaTexture interface and its
* the developer's responsibility to resolve all textures referenced by a
* #CoglPipeline to low-level textures before drawing.
* level drawing APIs of Cogl, such as cogl_primitive_draw() don't
* actually know anything about the #CoglMetaTexture interface and its
* the developer's responsibility to resolve all textures referenced
* by a #CoglPipeline to low-level textures before drawing.
*
* If you want to develop custom primitive APIs like
* cogl_framebuffer_draw_rectangle() and you want to support drawing
@ -77,7 +77,7 @@ COGL_BEGIN_DECLS
* example, then you will need to use this #CoglMetaTexture interface
* to be able to resolve high-level textures into low-level textures
* before drawing with Cogl's low-level drawing APIs such as
* cogl_framebuffer_draw_attributes().
* cogl_primitive_draw().
*
* <note>Most developers won't need to use this interface directly
* but still it is worth understanding the distinction between
@ -153,10 +153,10 @@ typedef void (*CoglMetaTextureCallback) (CoglTexture *sub_texture,
* internally use this API to resolve the low level textures of any
* meta textures you have associated with CoglPipeline layers.
*
* <note>The low level drawing APIs such as cogl_framebuffer_draw_attributes()
* <note>The low level drawing APIs such as cogl_primitive_draw()
* don't understand the #CoglMetaTexture interface and so it is your
* responsibility to use this API to resolve all CoglPipeline
* textures into low-level textures before drawing.</note>
* responsibility to use this API to resolve all CoglPipeline textures
* into low-level textures before drawing.</note>
*
* For each low-level texture that makes up part of the given region
* of the @meta_texture, @callback is called specifying how the

View File

@ -46,9 +46,9 @@ COGL_BEGIN_DECLS
* as #CoglAtlasTexture and #CoglTexture2DSliced.
*
* A texture that implements this interface can be directly used with
* the attributes API such as cogl_framebuffer_draw_attributes().
* Other types of textures need to be first resolved to primitive
* textures using the #CoglMetaTexture interface.
* the low level cogl_primitive_draw() API. Other types of textures
* need to be first resolved to primitive textures using the
* #CoglMetaTexture interface.
*
* <note>Most developers won't need to use this interface directly but
* still it is worth understanding the distinction between high-level

View File

@ -226,8 +226,6 @@ cogl_framebuffer_allocate
cogl_framebuffer_clear4f
cogl_framebuffer_clear
cogl_framebuffer_discard_buffers
cogl_framebuffer_draw_attributes
cogl_framebuffer_draw_indexed_attributes
cogl_framebuffer_draw_rectangle
cogl_framebuffer_draw_rectangles
cogl_framebuffer_draw_textured_rectangle

View File

@ -31,6 +31,7 @@
#include "cogl2-compatibility.h"
#include "cogl-framebuffer.h"
#include "cogl-framebuffer-private.h"
#include "cogl-index-buffer.h"
#include "cogl-pipeline.h"
@ -137,12 +138,13 @@ cogl_vdraw_indexed_attributes (CoglFramebuffer *framebuffer,
attributes[i] = attribute;
va_end (ap);
cogl_framebuffer_draw_indexed_attributes (framebuffer,
_cogl_framebuffer_draw_indexed_attributes (framebuffer,
pipeline,
mode,
first_vertex,
n_vertices,
indices,
attributes,
n_attributes);
n_attributes,
COGL_DRAW_SKIP_LEGACY_STATE);
}

View File

@ -225,14 +225,17 @@ _cogl_path_stroke_nodes (CoglPath *path,
path_start < data->path_nodes->len;
path_start += node->path_size)
{
CoglPrimitive *primitive;
node = &g_array_index (data->path_nodes, CoglPathNode, path_start);
cogl_framebuffer_vdraw_attributes (framebuffer,
pipeline,
COGL_VERTICES_MODE_LINE_STRIP,
0, node->path_size,
data->stroke_attributes[path_num],
NULL);
primitive =
cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_LINE_STRIP,
node->path_size,
&data->stroke_attributes[path_num],
1);
cogl_primitive_draw (primitive, framebuffer, pipeline);
cogl_object_unref (primitive);
path_num++;
}

View File

@ -542,10 +542,6 @@ cogl_framebuffer_set_dither_enabled
cogl_framebuffer_get_dither_enabled
<SUBSECTION>
cogl_framebuffer_draw_attributes
cogl_framebuffer_vdraw_attributes
cogl_framebuffer_draw_indexed_attributes
cogl_framebuffer_vdraw_indexed_attributes
cogl_framebuffer_draw_rectangle
cogl_framebuffer_draw_textured_rectangle
cogl_framebuffer_draw_multitextured_rectangle

View File

@ -31,6 +31,7 @@ test_float_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[2];
CoglAttributeBuffer *buffer;
CoglPrimitive *primitive;
static const FloatVert float_verts[] =
{
@ -61,13 +62,12 @@ test_float_verts (TestState *state, int offset_x, int offset_y)
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
6, /* n_vertices */
attributes,
2 /* n_attributes */);
2); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, state->pipeline);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);
@ -84,6 +84,7 @@ test_byte_verts (TestState *state, int offset_x, int offset_y)
{
CoglAttribute *attributes[2];
CoglAttributeBuffer *buffer, *unnorm_buffer;
CoglPrimitive *primitive;
static const ByteVert norm_verts[] =
{
@ -122,13 +123,12 @@ test_byte_verts (TestState *state, int offset_x, int offset_y)
cogl_framebuffer_push_matrix (test_fb);
cogl_framebuffer_translate (test_fb, offset_x, offset_y, 0.0f);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
6, /* n_vertices */
attributes,
2 /* n_attributes */);
2); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, state->pipeline);
cogl_object_unref (primitive);
cogl_object_unref (attributes[1]);
@ -145,13 +145,12 @@ test_byte_verts (TestState *state, int offset_x, int offset_y)
cogl_framebuffer_translate (test_fb, 20, 0, 0);
cogl_framebuffer_draw_attributes (test_fb,
state->pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
3, /* n_vertices */
attributes,
2 /* n_attributes */);
2); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, state->pipeline);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);
@ -172,6 +171,7 @@ test_short_verts (TestState *state, int offset_x, int offset_y)
CoglAttributeBuffer *buffer;
CoglPipeline *pipeline, *pipeline2;
CoglSnippet *snippet;
CoglPrimitive *primitive;
static const ShortVert short_verts[] =
{
@ -208,13 +208,12 @@ test_short_verts (TestState *state, int offset_x, int offset_y)
offset_y + 10.0f,
0.0f);
cogl_framebuffer_draw_attributes (test_fb,
pipeline,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
3, /* n_vertices */
attributes,
1 /* n_attributes */);
1); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, pipeline);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);
@ -237,13 +236,12 @@ test_short_verts (TestState *state, int offset_x, int offset_y)
offset_y - 65525,
0.0f);
cogl_framebuffer_draw_attributes (test_fb,
pipeline2,
COGL_VERTICES_MODE_TRIANGLES,
0, /* first_vertex */
primitive = cogl_primitive_new_with_attributes (COGL_VERTICES_MODE_TRIANGLES,
3, /* n_vertices */
attributes,
1 /* n_attributes */);
1); /* n_attributes */
cogl_primitive_draw (primitive, test_fb, pipeline2);
cogl_object_unref (primitive);
cogl_framebuffer_pop_matrix (test_fb);

View File

@ -32,6 +32,7 @@ test_map_buffer_range (void)
CoglVertexP2T2 *data;
CoglAttribute *pos_attribute;
CoglAttribute *tex_coord_attribute;
CoglPrimitive *primitive;
tex = cogl_texture_2d_new_from_data (test_ctx,
2, 2, /* width/height */
@ -95,14 +96,14 @@ test_map_buffer_range (void)
COGL_BUFFER_BIT_COLOR,
0, 0, 0, 1);
cogl_framebuffer_vdraw_attributes (test_fb,
pipeline,
COGL_VERTICES_MODE_TRIANGLE_STRIP,
0, /* first_vertex */
primitive =
cogl_primitive_new (COGL_VERTICES_MODE_TRIANGLE_STRIP,
4, /* n_vertices */
pos_attribute,
tex_coord_attribute,
NULL);
cogl_primitive_draw (primitive, test_fb, pipeline);
cogl_object_unref (primitive);
/* Top left pixel should be the one that is replaced to be green */
test_utils_check_pixel (test_fb, 1, 1, 0x00ff00ff);