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.
286 lines
8.5 KiB
C
286 lines
8.5 KiB
C
#include "config.h"
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#include <clutter/clutter.h>
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#include <cogl/cogl.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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#define QUAD_WIDTH 20
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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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#define ALPHA 3
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#define MASK_RED(COLOR) ((COLOR & 0xff000000) >> 24)
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#define MASK_GREEN(COLOR) ((COLOR & 0xff0000) >> 16)
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#define MASK_BLUE(COLOR) ((COLOR & 0xff00) >> 8)
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#define MASK_ALPHA(COLOR) (COLOR & 0xff)
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typedef struct _TestState
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{
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ClutterGeometry stage_geom;
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} TestState;
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static void
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check_pixel (TestState *state, int x, int y, guint32 color)
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{
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GLint y_off;
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GLint x_off;
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GLubyte pixel[4];
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guint8 r = MASK_RED (color);
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guint8 g = MASK_GREEN (color);
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guint8 b = MASK_BLUE (color);
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guint8 a = MASK_ALPHA (color);
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/* See what we got... */
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/* NB: glReadPixels is done in GL screen space so y = 0 is at the bottom */
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y_off = y * QUAD_WIDTH + (QUAD_WIDTH / 2);
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x_off = x * QUAD_WIDTH + (QUAD_WIDTH / 2);
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cogl_read_pixels (x_off, 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 (" result = %02x, %02x, %02x, %02x\n",
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pixel[RED], pixel[GREEN], pixel[BLUE], pixel[ALPHA]);
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if (g_test_verbose ())
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g_print (" expected = %x, %x, %x, %x\n",
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r, g, b, a);
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/* FIXME - allow for hardware in-precision */
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g_assert (pixel[RED] == r);
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g_assert (pixel[GREEN] == g);
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g_assert (pixel[BLUE] == b);
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/* FIXME
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* 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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/* g_assert (pixel[ALPHA] == a); */
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}
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static void
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test_material_with_primitives (TestState *state,
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int x, int y,
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guint32 color)
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{
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CoglTextureVertex verts[4] = {
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{ .x = 0, .y = 0, .z = 0 },
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{ .x = 0, .y = QUAD_WIDTH, .z = 0 },
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{ .x = QUAD_WIDTH, .y = QUAD_WIDTH, .z = 0 },
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{ .x = QUAD_WIDTH, .y = 0, .z = 0 },
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};
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CoglHandle vbo;
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cogl_push_matrix ();
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cogl_translate (x * QUAD_WIDTH, y * QUAD_WIDTH, 0);
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cogl_rectangle (0, 0, QUAD_WIDTH, QUAD_WIDTH);
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cogl_translate (0, QUAD_WIDTH, 0);
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cogl_polygon (verts, 4, FALSE);
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cogl_translate (0, QUAD_WIDTH, 0);
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vbo = cogl_vertex_buffer_new (4);
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cogl_vertex_buffer_add (vbo,
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"gl_Vertex",
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2, /* n components */
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COGL_ATTRIBUTE_TYPE_FLOAT,
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FALSE, /* normalized */
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sizeof (CoglTextureVertex), /* stride */
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verts);
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cogl_vertex_buffer_draw (vbo,
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COGL_VERTICES_MODE_TRIANGLE_FAN,
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0, /* first */
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4); /* count */
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cogl_handle_unref (vbo);
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cogl_pop_matrix ();
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check_pixel (state, x, y, color);
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check_pixel (state, x, y+1, color);
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check_pixel (state, x, y+2, color);
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}
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static void
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test_invalid_texture_layers (TestState *state, int x, int y)
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{
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CoglHandle material = cogl_material_new ();
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/* explicitly create a layer with an invalid handle. This may be desireable
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* if the user also sets a texture combine string that e.g. refers to a
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* constant color. */
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cogl_material_set_layer (material, 0, COGL_INVALID_HANDLE);
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cogl_set_source (material);
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cogl_handle_unref (material);
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/* We expect a white fallback material to be used */
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test_material_with_primitives (state, x, y, 0xffffffff);
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}
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static void
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test_using_all_layers (TestState *state, int x, int y)
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{
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CoglHandle material = cogl_material_new ();
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guint8 white_pixel[] = { 0xff, 0xff, 0xff, 0xff };
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guint8 red_pixel[] = { 0xff, 0x00, 0x00, 0xff };
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CoglHandle white_texture;
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CoglHandle red_texture;
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GLint n_layers;
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int i;
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/* Create a material that uses the maximum number of layers. All but
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the last layer will use a solid white texture. The last layer
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will use a red texture. The layers will all be modulated together
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so the final fragment should be red. */
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white_texture = cogl_texture_new_from_data (1, 1, 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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4, white_pixel);
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red_texture = cogl_texture_new_from_data (1, 1, 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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4, red_pixel);
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/* FIXME: Cogl doesn't provide a way to query the maximum number of
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texture layers so for now we'll just ask GL directly. */
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#ifdef HAVE_COGL_GLES2
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{
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GLint n_image_units, n_attribs;
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/* GLES 2 doesn't have GL_MAX_TEXTURE_UNITS and it uses
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GL_MAX_TEXTURE_IMAGE_UNITS instead */
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glGetIntegerv (GL_MAX_TEXTURE_IMAGE_UNITS, &n_image_units);
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/* Cogl needs a vertex attrib for each layer to upload the texture
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coordinates */
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glGetIntegerv (GL_MAX_VERTEX_ATTRIBS, &n_attribs);
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/* We can't use two of the attribs because they are used by the
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position and color */
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n_attribs -= 2;
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n_layers = MIN (n_attribs, n_image_units);
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}
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#else
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glGetIntegerv (GL_MAX_TEXTURE_UNITS, &n_layers);
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#endif
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/* FIXME: is this still true? */
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/* Cogl currently can't cope with more than 32 layers so we'll also
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limit the maximum to that. */
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if (n_layers > 32)
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n_layers = 32;
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for (i = 0; i < n_layers; i++)
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{
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cogl_material_set_layer_filters (material, i,
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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, i,
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i == n_layers - 1 ? red_texture : white_texture);
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}
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cogl_set_source (material);
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cogl_handle_unref (material);
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cogl_handle_unref (white_texture);
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cogl_handle_unref (red_texture);
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/* We expect the final fragment to be red */
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test_material_with_primitives (state, x, y, 0xff0000ff);
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}
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static void
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test_invalid_texture_layers_with_constant_colors (TestState *state,
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int x, int y)
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{
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CoglHandle material = cogl_material_new ();
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CoglColor constant_color;
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/* explicitly create a layer with an invalid handle */
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cogl_material_set_layer (material, 0, COGL_INVALID_HANDLE);
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/* ignore the fallback texture on the layer and use a constant color
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instead */
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cogl_color_init_from_4ub (&constant_color, 0, 0, 255, 255);
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cogl_material_set_layer_combine (material, 0,
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"RGBA=REPLACE(CONSTANT)",
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NULL);
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cogl_material_set_layer_combine_constant (material, 0, &constant_color);
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cogl_set_source (material);
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cogl_handle_unref (material);
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/* We expect the final fragments to be green */
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test_material_with_primitives (state, x, y, 0x0000ffff);
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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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test_invalid_texture_layers (state,
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0, 0 /* position */
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);
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test_invalid_texture_layers_with_constant_colors (state,
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1, 0 /* position */
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);
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test_using_all_layers (state,
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2, 0 /* position */
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);
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/* Comment this out if you want visual feedback for what this test paints */
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#if 1
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clutter_main_quit ();
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#endif
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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_materials (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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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_color);
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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_container_add_actor (CLUTTER_CONTAINER (stage), group);
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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, stage);
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g_signal_connect (group, "paint", G_CALLBACK (on_paint), &state);
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clutter_actor_show_all (stage);
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clutter_main ();
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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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