From 72097ac01d3b6626ca128b7df055352b556c46a1 Mon Sep 17 00:00:00 2001
From: Neil Roberts <neil@linux.intel.com>
Date: Fri, 2 Dec 2011 10:55:41 +0000
Subject: [PATCH] Add a conformance test for custom attributes
The test creates some pipelines with snippets with custom attributes
and uses CoglAttribute to define values for them.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
---
tests/conform/Makefile.am | 1 +
tests/conform/test-conform-main.c | 1 +
tests/conform/test-custom-attributes.c | 304 +++++++++++++++++++++++++
3 files changed, 306 insertions(+)
create mode 100644 tests/conform/test-custom-attributes.c
diff --git a/tests/conform/Makefile.am b/tests/conform/Makefile.am
index 92e1ef4da..a8c23286a 100644
--- a/tests/conform/Makefile.am
+++ b/tests/conform/Makefile.am
@@ -46,6 +46,7 @@ test_sources = \
test-snippets.c \
test-wrap-modes.c \
test-sub-texture.c \
+ test-custom-attributes.c \
$(NULL)
test_conformance_SOURCES = $(common_sources) $(test_sources)
diff --git a/tests/conform/test-conform-main.c b/tests/conform/test-conform-main.c
index 700238c1b..0f924b514 100644
--- a/tests/conform/test-conform-main.c
+++ b/tests/conform/test-conform-main.c
@@ -163,6 +163,7 @@ main (int argc, char **argv)
ADD_TEST ("/cogl/shaders", test_cogl_just_vertex_shader);
ADD_TEST ("/cogl/shaders", test_cogl_pipeline_uniforms);
ADD_TEST ("/cogl/shaders", test_cogl_snippets);
+ ADD_TEST ("/cogl/shaders", test_cogl_custom_attributes);
ADD_TEST ("/cogl/internal/bitmask", test_cogl_bitmask);
diff --git a/tests/conform/test-custom-attributes.c b/tests/conform/test-custom-attributes.c
new file mode 100644
index 000000000..bc3d09fae
--- /dev/null
+++ b/tests/conform/test-custom-attributes.c
@@ -0,0 +1,304 @@
+#include <cogl/cogl.h>
+
+#include <string.h>
+
+#include "test-utils.h"
+
+typedef struct _TestState
+{
+ CoglPipeline *pipeline;
+} TestState;
+
+typedef struct
+{
+ gint16 x, y;
+ float r, g, b, a;
+} FloatVert;
+
+typedef struct
+{
+ gint16 x, y;
+ guint8 r, g, b, a;
+} ByteVert;
+
+typedef struct
+{
+ gint16 x, y;
+} ShortVert;
+
+static void
+test_float_verts (TestState *state, int offset_x, int offset_y)
+{
+ CoglAttribute *attributes[2];
+ CoglAttributeBuffer *buffer;
+
+ static const FloatVert float_verts[] =
+ {
+ { 0, 10, /**/ 1, 0, 0, 1 },
+ { 10, 10, /**/ 1, 0, 0, 1 },
+ { 5, 0, /**/ 1, 0, 0, 1 },
+
+ { 10, 10, /**/ 0, 1, 0, 1 },
+ { 20, 10, /**/ 0, 1, 0, 1 },
+ { 15, 0, /**/ 0, 1, 0, 1 }
+ };
+
+ buffer = cogl_attribute_buffer_new (sizeof (float_verts), float_verts);
+ attributes[0] = cogl_attribute_new (buffer,
+ "cogl_position_in",
+ sizeof (FloatVert),
+ G_STRUCT_OFFSET (FloatVert, x),
+ 2, /* n_components */
+ COGL_ATTRIBUTE_TYPE_SHORT);
+ attributes[1] = cogl_attribute_new (buffer,
+ "color",
+ sizeof (FloatVert),
+ G_STRUCT_OFFSET (FloatVert, r),
+ 4, /* n_components */
+ COGL_ATTRIBUTE_TYPE_FLOAT);
+
+ cogl_push_source (state->pipeline);
+
+ cogl_push_matrix ();
+ cogl_translate (offset_x, offset_y, 0.0f);
+
+ cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
+ 0, /* first_vertex */
+ 6, /* n_vertices */
+ attributes,
+ 2 /* n_attributes */);
+
+ cogl_pop_matrix ();
+
+ cogl_pop_source ();
+
+ cogl_object_unref (attributes[1]);
+ cogl_object_unref (attributes[0]);
+ cogl_object_unref (buffer);
+
+ test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
+ test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
+}
+
+static void
+test_byte_verts (TestState *state, int offset_x, int offset_y)
+{
+ CoglAttribute *attributes[2];
+ CoglAttributeBuffer *buffer, *unnorm_buffer;
+
+ static const ByteVert norm_verts[] =
+ {
+ { 0, 10, /**/ 255, 0, 0, 255 },
+ { 10, 10, /**/ 255, 0, 0, 255 },
+ { 5, 0, /**/ 255, 0, 0, 255 },
+
+ { 10, 10, /**/ 0, 255, 0, 255 },
+ { 20, 10, /**/ 0, 255, 0, 255 },
+ { 15, 0, /**/ 0, 255, 0, 255 }
+ };
+
+ static const ByteVert unnorm_verts[] =
+ {
+ { 0, 0, /**/ 0, 0, 1, 1 },
+ { 0, 0, /**/ 0, 0, 1, 1 },
+ { 0, 0, /**/ 0, 0, 1, 1 },
+ };
+
+ buffer = cogl_attribute_buffer_new (sizeof (norm_verts), norm_verts);
+ attributes[0] = cogl_attribute_new (buffer,
+ "cogl_position_in",
+ sizeof (ByteVert),
+ G_STRUCT_OFFSET (ByteVert, x),
+ 2, /* n_components */
+ COGL_ATTRIBUTE_TYPE_SHORT);
+ attributes[1] = cogl_attribute_new (buffer,
+ "color",
+ sizeof (ByteVert),
+ G_STRUCT_OFFSET (ByteVert, r),
+ 4, /* n_components */
+ COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
+ cogl_attribute_set_normalized (attributes[1], TRUE);
+
+ cogl_push_source (state->pipeline);
+
+ cogl_push_matrix ();
+ cogl_translate (offset_x, offset_y, 0.0f);
+
+ cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
+ 0, /* first_vertex */
+ 6, /* n_vertices */
+ attributes,
+ 2 /* n_attributes */);
+
+ cogl_object_unref (attributes[1]);
+
+ /* Test again with unnormalized attributes */
+ unnorm_buffer = cogl_attribute_buffer_new (sizeof (unnorm_verts),
+ unnorm_verts);
+ attributes[1] = cogl_attribute_new (unnorm_buffer,
+ "color",
+ sizeof (ByteVert),
+ G_STRUCT_OFFSET (ByteVert, r),
+ 4, /* n_components */
+ COGL_ATTRIBUTE_TYPE_BYTE);
+
+ cogl_translate (20, 0, 0);
+
+ cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
+ 0, /* first_vertex */
+ 3, /* n_vertices */
+ attributes,
+ 2 /* n_attributes */);
+
+ cogl_pop_matrix ();
+
+ cogl_pop_source ();
+
+ cogl_object_unref (attributes[0]);
+ cogl_object_unref (attributes[1]);
+ cogl_object_unref (buffer);
+ cogl_object_unref (unnorm_buffer);
+
+ test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
+ test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
+ test_utils_check_pixel (offset_x + 25, offset_y + 5, 0x0000ffff);
+}
+
+static void
+test_short_verts (TestState *state, int offset_x, int offset_y)
+{
+ CoglAttribute *attributes[1];
+ CoglAttributeBuffer *buffer;
+ CoglPipeline *pipeline, *pipeline2;
+ CoglSnippet *snippet;
+
+ static const ShortVert short_verts[] =
+ {
+ { -10, -10 },
+ { -1, -10 },
+ { -5, -1 }
+ };
+
+ pipeline = cogl_pipeline_new ();
+ snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX_TRANSFORM,
+ "attribute vec2 pos;",
+ NULL);
+ cogl_snippet_set_replace (snippet,
+ "cogl_position_out = "
+ "cogl_modelview_projection_matrix * "
+ "vec4 (pos, 0.0, 1.0);");
+ cogl_pipeline_add_snippet (pipeline, snippet);
+ cogl_object_unref (snippet);
+
+ cogl_pipeline_set_color4ub (pipeline, 255, 0, 0, 255);
+
+ buffer = cogl_attribute_buffer_new (sizeof (short_verts), short_verts);
+ attributes[0] = cogl_attribute_new (buffer,
+ "pos",
+ sizeof (ShortVert),
+ G_STRUCT_OFFSET (ShortVert, x),
+ 2, /* n_components */
+ COGL_ATTRIBUTE_TYPE_SHORT);
+
+ cogl_push_source (pipeline);
+
+ cogl_push_matrix ();
+ cogl_translate (offset_x + 10.0f, offset_y + 10.0f, 0.0f);
+
+ cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
+ 0, /* first_vertex */
+ 3, /* n_vertices */
+ attributes,
+ 1 /* n_attributes */);
+
+ cogl_pop_matrix ();
+
+ cogl_pop_source ();
+
+ cogl_object_unref (attributes[0]);
+
+ /* Test again treating the attribute as unsigned */
+ attributes[0] = cogl_attribute_new (buffer,
+ "pos",
+ sizeof (ShortVert),
+ G_STRUCT_OFFSET (ShortVert, x),
+ 2, /* n_components */
+ COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
+
+ pipeline2 = cogl_pipeline_copy (pipeline);
+ cogl_pipeline_set_color4ub (pipeline2, 0, 255, 0, 255);
+
+ cogl_push_source (pipeline2);
+
+ cogl_push_matrix ();
+ cogl_translate (offset_x + 10.0f - 65525.0f, offset_y - 65525, 0.0f);
+
+ cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
+ 0, /* first_vertex */
+ 3, /* n_vertices */
+ attributes,
+ 1 /* n_attributes */);
+
+ cogl_pop_matrix ();
+
+ cogl_pop_source ();
+
+ cogl_object_unref (attributes[0]);
+
+ cogl_object_unref (pipeline2);
+ cogl_object_unref (pipeline);
+ cogl_object_unref (buffer);
+
+ test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
+ test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
+}
+
+static void
+paint (TestState *state)
+{
+ CoglColor color;
+
+ cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
+ cogl_clear (&color, COGL_BUFFER_BIT_COLOR);
+
+ test_float_verts (state, 0, 0);
+ test_byte_verts (state, 0, 10);
+ test_short_verts (state, 0, 20);
+}
+
+void
+test_cogl_custom_attributes (TestUtilsGTestFixture *fixture,
+ void *user_data)
+{
+ TestUtilsSharedState *shared_state = user_data;
+
+ /* If shaders aren't supported then we can't run the test */
+ if (cogl_features_available (COGL_FEATURE_SHADERS_GLSL))
+ {
+ CoglSnippet *snippet;
+ TestState state;
+
+ cogl_ortho (/* left, right */
+ 0, cogl_framebuffer_get_width (shared_state->fb),
+ /* bottom, top */
+ cogl_framebuffer_get_height (shared_state->fb), 0,
+ /* z near, far */
+ -1, 100);
+
+ state.pipeline = cogl_pipeline_new ();
+ snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
+ "attribute vec4 color;",
+ "cogl_color_out = color;");
+ cogl_pipeline_add_snippet (state.pipeline, snippet);
+
+ paint (&state);
+
+ cogl_object_unref (state.pipeline);
+ cogl_object_unref (snippet);
+
+ if (g_test_verbose ())
+ g_print ("OK\n");
+ }
+ else if (g_test_verbose ())
+ g_print ("Skipping\n");
+}