mirror of
https://github.com/brl/mutter.git
synced 2024-11-23 08:30:42 -05:00
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.
277 lines
7.6 KiB
C
277 lines
7.6 KiB
C
#include <clutter/clutter.h>
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#include <string.h>
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#include "test-conform-common.h"
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static const ClutterColor stage_color = { 0x0, 0x0, 0x0, 0xff };
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typedef struct _TestState
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{
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ClutterActor *stage;
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} TestState;
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static CoglHandle
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create_source_rect (void)
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{
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#ifdef GL_TEXTURE_RECTANGLE_ARB
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int x, y;
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GLint prev_unpack_row_length;
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GLint prev_unpack_alignment;
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GLint prev_unpack_skip_rows;
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GLint prev_unpack_skip_pixles;
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GLint prev_rectangle_binding;
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guint8 *data = g_malloc (256 * 256 * 4), *p = data;
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CoglHandle tex;
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GLuint gl_tex;
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for (y = 0; y < 256; y++)
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for (x = 0; x < 256; x++)
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{
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*(p++) = x;
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*(p++) = y;
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*(p++) = 0;
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*(p++) = 255;
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}
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/* We are about to use OpenGL directly to create a TEXTURE_RECTANGLE
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* texture so we need to save the state that we modify so we can
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* restore it afterwards and be sure not to interfere with any state
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* caching that Cogl may do internally.
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*/
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glGetIntegerv (GL_UNPACK_ROW_LENGTH, &prev_unpack_row_length);
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glGetIntegerv (GL_UNPACK_ALIGNMENT, &prev_unpack_alignment);
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glGetIntegerv (GL_UNPACK_SKIP_ROWS, &prev_unpack_skip_rows);
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glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &prev_unpack_skip_pixles);
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glGetIntegerv (GL_TEXTURE_BINDING_RECTANGLE_ARB, &prev_rectangle_binding);
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glPixelStorei (GL_UNPACK_ROW_LENGTH, 256);
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glPixelStorei (GL_UNPACK_ALIGNMENT, 8);
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glPixelStorei (GL_UNPACK_SKIP_ROWS, 0);
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glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0);
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glGenTextures (1, &gl_tex);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, gl_tex);
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glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0,
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GL_RGBA, 256, 256, 0,
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GL_RGBA,
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GL_UNSIGNED_BYTE,
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data);
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/* Now restore the original GL state as Cogl had left it */
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glPixelStorei (GL_UNPACK_ROW_LENGTH, prev_unpack_row_length);
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glPixelStorei (GL_UNPACK_ALIGNMENT, prev_unpack_alignment);
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glPixelStorei (GL_UNPACK_SKIP_ROWS, prev_unpack_skip_rows);
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glPixelStorei (GL_UNPACK_SKIP_PIXELS, prev_unpack_skip_pixles);
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glBindTexture (GL_TEXTURE_RECTANGLE_ARB, prev_rectangle_binding);
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g_assert (glGetError () == GL_NO_ERROR);
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g_free (data);
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tex = cogl_texture_new_from_foreign (gl_tex,
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GL_TEXTURE_RECTANGLE_ARB,
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256, 256, 0, 0,
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COGL_PIXEL_FORMAT_RGBA_8888);
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return tex;
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#else /* GL_TEXTURE_RECTANGLE_ARB */
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return COGL_INVALID_HANDLE;
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#endif /* GL_TEXTURE_RECTANGLE_ARB */
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}
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static CoglHandle
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create_source_2d (void)
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{
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int x, y;
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guint8 *data = g_malloc (256 * 256 * 4), *p = data;
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CoglHandle tex;
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for (y = 0; y < 256; y++)
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for (x = 0; x < 256; x++)
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{
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*(p++) = 0;
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*(p++) = x;
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*(p++) = y;
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*(p++) = 255;
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}
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tex = cogl_texture_new_from_data (256, 256, COGL_TEXTURE_NONE,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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COGL_PIXEL_FORMAT_ANY,
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256 * 4,
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data);
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g_free (data);
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return tex;
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}
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static void
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draw_frame (TestState *state)
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{
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GLuint gl_tex;
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CoglHandle tex_rect = create_source_rect ();
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CoglHandle material_rect = cogl_material_new ();
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CoglHandle tex_2d = create_source_2d ();
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CoglHandle material_2d = cogl_material_new ();
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g_assert (tex_rect != COGL_INVALID_HANDLE);
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cogl_material_set_layer (material_rect, 0, tex_rect);
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cogl_material_set_layer_filters (material_rect, 0,
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COGL_MATERIAL_FILTER_NEAREST,
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COGL_MATERIAL_FILTER_NEAREST);
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cogl_material_set_layer (material_2d, 0, tex_2d);
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cogl_material_set_layer_filters (material_2d, 0,
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COGL_MATERIAL_FILTER_NEAREST,
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COGL_MATERIAL_FILTER_NEAREST);
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cogl_set_source (material_rect);
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/* Render the texture repeated horizontally twice */
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cogl_rectangle_with_texture_coords (0.0f, 0.0f, 512.0f, 256.0f,
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0.0f, 0.0f, 2.0f, 1.0f);
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/* Render the top half of the texture to test without repeating */
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cogl_rectangle_with_texture_coords (0.0f, 256.0f, 256.0f, 384.0f,
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0.0f, 0.0f, 1.0f, 0.5f);
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cogl_set_source (material_2d);
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/* Render the top half of a regular 2D texture */
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cogl_rectangle_with_texture_coords (256.0f, 256.0f, 512.0f, 384.0f,
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0.0f, 0.0f, 1.0f, 0.5f);
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/* Flush the rendering now so we can safely delete the texture */
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cogl_flush ();
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cogl_handle_unref (material_rect);
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/* Cogl doesn't destroy foreign textures so we have to do it manually */
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cogl_texture_get_gl_texture (tex_rect, &gl_tex, NULL);
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glDeleteTextures (1, &gl_tex);
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cogl_handle_unref (tex_rect);
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}
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static void
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validate_result (TestState *state)
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{
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guint8 *data, *p;
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int x, y;
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p = data = g_malloc (512 * 384 * 4);
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cogl_read_pixels (0, 0, 512, 384,
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COGL_READ_PIXELS_COLOR_BUFFER,
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COGL_PIXEL_FORMAT_RGBA_8888,
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data);
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for (y = 0; y < 384; y++)
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for (x = 0; x < 512; x++)
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{
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if (x >= 256 && y >= 256)
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{
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g_assert_cmpint (p[0], ==, 0);
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g_assert_cmpint (p[1], ==, x & 0xff);
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g_assert_cmpint (p[2], ==, y & 0xff);
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}
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else
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{
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g_assert_cmpint (p[0], ==, x & 0xff);
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g_assert_cmpint (p[1], ==, y & 0xff);
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g_assert_cmpint (p[2], ==, 0);
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}
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p += 4;
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}
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g_free (data);
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/* Comment this out to see what the test paints */
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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_frame (state);
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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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static gboolean
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check_rectangle_extension (void)
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{
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static const char rect_extension[] = "GL_ARB_texture_rectangle";
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const char *extensions = (const char *) glGetString (GL_EXTENSIONS);
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const char *extensions_end;
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extensions_end = extensions + strlen (extensions);
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while (extensions < extensions_end)
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{
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const char *end = strchr (extensions, ' ');
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if (end == NULL)
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end = extensions_end;
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if (end - extensions == sizeof (rect_extension) - 1 &&
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!memcmp (extensions, rect_extension, sizeof (rect_extension) - 1))
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return TRUE;
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extensions = end + 1;
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}
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return FALSE;
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}
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void
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test_cogl_texture_rectangle (TestUtilsGTestFixture *fixture,
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void *data)
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{
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TestState state;
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unsigned int idle_source;
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unsigned int paint_handler;
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state.stage = clutter_stage_get_default ();
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/* Check whether GL supports the rectangle extension. If not we'll
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just assume the test passes */
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if (check_rectangle_extension ())
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{
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clutter_stage_set_color (CLUTTER_STAGE (state.stage), &stage_color);
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/* We force continuous redrawing of the stage, since we need to skip
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* the first few frames, and we wont be doing anything else that
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* will trigger redrawing. */
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idle_source = g_idle_add (queue_redraw, state.stage);
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paint_handler = g_signal_connect_after (state.stage, "paint",
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G_CALLBACK (on_paint), &state);
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clutter_actor_show_all (state.stage);
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clutter_main ();
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g_source_remove (idle_source);
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g_signal_handler_disconnect (state.stage, paint_handler);
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if (g_test_verbose ())
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g_print ("OK\n");
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}
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else if (g_test_verbose ())
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g_print ("Skipping\n");
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}
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