mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
#include <gtk/gtk.h>
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#include <epoxy/gl.h>
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static cairo_surface_t *
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make_surface (void)
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{
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cairo_surface_t *surface;
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cairo_t *cr;
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guchar *data;
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data = g_malloc (64 * 64 * 4);
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surface = cairo_image_surface_create_for_data (data,
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CAIRO_FORMAT_ARGB32,
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64, 64, 64 * 4);
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cr = cairo_create (surface);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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return surface;
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}
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enum {
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SAME_CONTEXT,
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NO_CONTEXT,
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SHARED_CONTEXT
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};
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static void
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test_gltexture (int test)
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{
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GdkDisplay *display;
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GdkGLContext *context;
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GdkGLContext *context2 = NULL;
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GdkGLTextureBuilder *builder;
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GdkTexture *texture;
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cairo_surface_t *surface;
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GError *error = NULL;
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unsigned int id;
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guchar *data;
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display = gdk_display_get_default ();
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if (!gdk_display_prepare_gl (display, &error))
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{
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g_test_message ("no GL support: %s", error->message);
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g_test_skip ("no GL support");
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g_clear_error (&error);
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return;
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}
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context = gdk_display_create_gl_context (display, &error);
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g_assert_nonnull (context);
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g_assert_no_error (error);
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gdk_gl_context_realize (context, &error);
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g_assert_no_error (error);
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surface = make_surface ();
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gdk_gl_context_make_current (context);
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glGenTextures (1, &id);
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glActiveTexture (GL_TEXTURE0);
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glBindTexture (GL_TEXTURE_2D, id);
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glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA8, 64, 64, 0, GL_BGRA, GL_UNSIGNED_BYTE,
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cairo_image_surface_get_data (surface));
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g_assert_true (glGetError () == GL_NO_ERROR);
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if (test == NO_CONTEXT)
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gdk_gl_context_clear_current ();
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else if (test == SHARED_CONTEXT)
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{
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context2 = gdk_display_create_gl_context (display, &error);
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g_assert_nonnull (context2);
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g_assert_no_error (error);
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gdk_gl_context_realize (context2, &error);
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g_assert_no_error (error);
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gdk_gl_context_make_current (context2);
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}
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builder = gdk_gl_texture_builder_new ();
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gdk_gl_texture_builder_set_id (builder, id);
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gdk_gl_texture_builder_set_context (builder, context);
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gdk_gl_texture_builder_set_width (builder, 64);
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gdk_gl_texture_builder_set_height (builder, 64);
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texture = gdk_gl_texture_builder_build (builder, NULL, NULL);
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data = g_malloc0 (64 * 64 * 4);
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gdk_texture_download (texture, data, 64 * 4);
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g_assert_true (memcmp (data, cairo_image_surface_get_data (surface), 64 * 64 * 4) == 0);
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g_free (data);
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g_object_unref (texture);
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g_object_unref (builder);
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cairo_surface_destroy (surface);
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g_object_unref (context);
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g_clear_object (&context2);
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}
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static void
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test_gltexture_same_context (void)
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{
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test_gltexture (SAME_CONTEXT);
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}
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static void
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test_gltexture_no_context (void)
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{
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test_gltexture (NO_CONTEXT);
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}
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static void
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test_gltexture_shared_context (void)
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{
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test_gltexture (SHARED_CONTEXT);
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}
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int
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main (int argc, char *argv[])
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{
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gtk_test_init (&argc, &argv, NULL);
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g_test_add_func ("/gltexture/same-context", test_gltexture_same_context);
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g_test_add_func ("/gltexture/no-context", test_gltexture_no_context);
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g_test_add_func ("/gltexture/shared-context", test_gltexture_shared_context);
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return g_test_run ();
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}
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