b5a7657076
This makes a start on porting the Cogl conformance tests that currently still live in the Clutter repository to be standalone Cogl tests that no longer require a ClutterStage. The main thing is that this commit brings in is the basic testing infrastructure we need, so now we can port more and more tests incrementally. Since the test suite wants a way to synchronize X requests/replies and we can't simply call XSynchronize in the test-utils code before we know if we are really running on X this adds a check for an environment variable named "COGL_X11_SYNC" in cogl-xlib-renderer.c and if it's set it forces XSynchronize (dpy, TRUE) to be called. By default the conformance tests are run off screen. This makes the tests run much faster and they also don't interfere with other work you may want to do by constantly stealing focus. CoglOnscreen framebuffers obviously don't get tested this way so it's important that the tests also get run on screen every once in a while, especially if changes are being made to CoglFramebuffer related code. On screen testing can be enabled by setting COGL_TEST_ONSCREEN=1 in your environment.
163 lines
3.9 KiB
C
163 lines
3.9 KiB
C
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#include <clutter/clutter.h>
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#include <cogl/cogl.h>
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#include "test-conform-common.h"
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/* This test verifies that interleved attributes work with the vertex buffer
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* API. We add (x,y) GLfloat vertices, interleved with RGBA GLubyte color
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* attributes to a buffer, submit and draw.
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*
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* If you want visual feedback of what this test paints for debugging purposes,
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* then remove the call to clutter_main_quit() in validate_result.
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*/
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typedef struct _TestState
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{
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CoglHandle buffer;
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ClutterGeometry stage_geom;
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} TestState;
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typedef struct _InterlevedVertex
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{
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GLfloat x;
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GLfloat y;
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GLubyte r;
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GLubyte g;
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GLubyte b;
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GLubyte a;
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} InterlevedVertex;
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static void
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validate_result (TestState *state)
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{
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GLubyte pixel[4];
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GLint y_off = 90;
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/* NB: We ignore the alpha, since we don't know if our render target is
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* RGB or RGBA */
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#define RED 0
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#define GREEN 1
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#define BLUE 2
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/* Should see a blue pixel */
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cogl_read_pixels (10, y_off, 1, 1,
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COGL_READ_PIXELS_COLOR_BUFFER,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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pixel);
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if (g_test_verbose ())
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g_print ("pixel 0 = %x, %x, %x\n", pixel[RED], pixel[GREEN], pixel[BLUE]);
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g_assert (pixel[RED] == 0 && pixel[GREEN] == 0 && pixel[BLUE] != 0);
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#undef RED
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#undef GREEN
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#undef BLUE
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/* Comment this out if you want visual feedback of what this test
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* paints.
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*/
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clutter_main_quit ();
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}
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static void
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on_paint (ClutterActor *actor, TestState *state)
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{
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/* Draw a faded blue triangle */
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cogl_vertex_buffer_draw (state->buffer,
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GL_TRIANGLE_STRIP, /* mode */
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0, /* first */
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3); /* count */
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validate_result (state);
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}
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static gboolean
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queue_redraw (gpointer stage)
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{
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clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
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return TRUE;
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}
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void
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test_cogl_vertex_buffer_interleved (TestUtilsGTestFixture *fixture,
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void *data)
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{
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TestState state;
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ClutterActor *stage;
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ClutterColor stage_clr = {0x0, 0x0, 0x0, 0xff};
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ClutterActor *group;
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unsigned int idle_source;
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_clr);
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clutter_actor_get_geometry (stage, &state.stage_geom);
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group = clutter_group_new ();
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clutter_actor_set_size (group,
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state.stage_geom.width,
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state.stage_geom.height);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), group);
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/* We force continuous redrawing incase someone comments out the
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* clutter_main_quit and wants visual feedback for the test since we
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* wont be doing anything else that will trigger redrawing. */
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idle_source = g_idle_add (queue_redraw, stage);
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g_signal_connect (group, "paint", G_CALLBACK (on_paint), &state);
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{
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InterlevedVertex verts[3] =
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{
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{ /* .x = */ 0.0, /* .y = */ 0.0,
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/* blue */
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/* .r = */ 0x00, /* .g = */ 0x00, /* .b = */ 0xff, /* .a = */ 0xff },
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{ /* .x = */ 100.0, /* .y = */ 100.0,
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/* transparent blue */
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/* .r = */ 0x00, /* .g = */ 0x00, /* .b = */ 0xff, /* .a = */ 0x00 },
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{ /* .x = */ 0.0, /* .y = */ 100.0,
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/* transparent blue */
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/* .r = */ 0x00, /* .g = */ 0x00, /* .b = */ 0xff, /* .a = */ 0x00 },
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};
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/* We assume the compiler is doing no funny struct padding for this test:
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*/
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g_assert (sizeof (InterlevedVertex) == 12);
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state.buffer = cogl_vertex_buffer_new (3 /* n vertices */);
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cogl_vertex_buffer_add (state.buffer,
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"gl_Vertex",
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2, /* n components */
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GL_FLOAT,
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FALSE, /* normalized */
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12, /* stride */
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&verts[0].x);
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cogl_vertex_buffer_add (state.buffer,
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"gl_Color",
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4, /* n components */
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GL_UNSIGNED_BYTE,
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FALSE, /* normalized */
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12, /* stride */
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&verts[0].r);
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cogl_vertex_buffer_submit (state.buffer);
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}
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clutter_actor_show_all (stage);
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clutter_main ();
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cogl_handle_unref (state.buffer);
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g_source_remove (idle_source);
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if (g_test_verbose ())
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g_print ("OK\n");
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}
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