brl/mutter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
32fbd0ada6
mutter/tests/conform/test-blend-strings.c
Robert Bragg 54735dec84 Switch use of primitive glib types to c99 equivalents 
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.

Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.

Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.

So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.

Instead of gsize we now use size_t

For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-08-06 14:27:39 +01:00

431 lines
14 KiB
C
Raw Blame History

#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define QUAD_WIDTH 20
#define RED 0
#define GREEN 1
#define BLUE 2
#define ALPHA 3
#define MASK_RED(COLOR) ((COLOR & 0xff000000) >> 24)
#define MASK_GREEN(COLOR) ((COLOR & 0xff0000) >> 16)
#define MASK_BLUE(COLOR) ((COLOR & 0xff00) >> 8)
#define MASK_ALPHA(COLOR) (COLOR & 0xff)
#define BLEND_CONSTANT_UNUSED 0xDEADBEEF
#define TEX_CONSTANT_UNUSED 0xDEADBEEF
typedef struct _TestState
{
CoglContext *ctx;
} TestState;
static void
test_blend (TestState *state,
int x,
int y,
uint32_t src_color,
uint32_t dst_color,
const char *blend_string,
uint32_t blend_constant,
uint32_t expected_result)
{
/* src color */
uint8_t Sr = MASK_RED (src_color);
uint8_t Sg = MASK_GREEN (src_color);
uint8_t Sb = MASK_BLUE (src_color);
uint8_t Sa = MASK_ALPHA (src_color);
/* dest color */
uint8_t Dr = MASK_RED (dst_color);
uint8_t Dg = MASK_GREEN (dst_color);
uint8_t Db = MASK_BLUE (dst_color);
uint8_t Da = MASK_ALPHA (dst_color);
/* blend constant - when applicable */
uint8_t Br = MASK_RED (blend_constant);
uint8_t Bg = MASK_GREEN (blend_constant);
uint8_t Bb = MASK_BLUE (blend_constant);
uint8_t Ba = MASK_ALPHA (blend_constant);
CoglColor blend_const_color;
CoglHandle material;
CoglPipeline *pipeline;
CoglBool status;
GError *error = NULL;
int y_off;
int x_off;
/* First write out the destination color without any blending... */
pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_color4ub (pipeline, Dr, Dg, Db, Da);
cogl_pipeline_set_blend (pipeline, "RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_set_source (pipeline);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_object_unref (pipeline);
/*
* Now blend a rectangle over our well defined destination:
*/
pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_color4ub (pipeline, Sr, Sg, Sb, Sa);
status = cogl_pipeline_set_blend (pipeline, blend_string, &error);
if (!status)
{
/* It's not strictly a test failure; you need a more capable GPU or
* driver to test this blend string. */
if (cogl_test_verbose ())
{
g_debug ("Failed to test blend string %s: %s",
blend_string, error->message);
g_print ("Skipping\n");
}
return;
}
cogl_color_init_from_4ub (&blend_const_color, Br, Bg, Bb, Ba);
cogl_pipeline_set_blend_constant (pipeline, &blend_const_color);
cogl_set_source (pipeline);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_object_unref (pipeline);
/* See what we got... */
y_off = y * QUAD_WIDTH + (QUAD_WIDTH / 2);
x_off = x * QUAD_WIDTH + (QUAD_WIDTH / 2);
if (cogl_test_verbose ())
{
g_print ("test_blend (%d, %d):\n%s\n", x, y, blend_string);
g_print (" src color = %02x, %02x, %02x, %02x\n", Sr, Sg, Sb, Sa);
g_print (" dst color = %02x, %02x, %02x, %02x\n", Dr, Dg, Db, Da);
if (blend_constant != BLEND_CONSTANT_UNUSED)
g_print (" blend constant = %02x, %02x, %02x, %02x\n",
Br, Bg, Bb, Ba);
else
g_print (" blend constant = UNUSED\n");
}
test_utils_check_pixel (fb, x_off, y_off, expected_result);
/*
* Test with legacy API
*/
/* Clear previous work */
cogl_set_source_color4ub (0, 0, 0, 0xff);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
/* First write out the destination color without any blending... */
material = cogl_material_new ();
cogl_material_set_color4ub (material, Dr, Dg, Db, Da);
cogl_material_set_blend (material, "RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_set_source (material);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_handle_unref (material);
/*
* Now blend a rectangle over our well defined destination:
*/
material = cogl_material_new ();
cogl_material_set_color4ub (material, Sr, Sg, Sb, Sa);
status = cogl_material_set_blend (material, blend_string, &error);
if (!status)
{
/* This is a failure as it must be equivalent to the new API */
g_warning ("Error setting blend string %s: %s",
blend_string, error->message);
g_assert_not_reached ();
}
cogl_color_init_from_4ub (&blend_const_color, Br, Bg, Bb, Ba);
cogl_material_set_blend_constant (material, &blend_const_color);
cogl_set_source (material);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_handle_unref (material);
/* See what we got... */
test_utils_check_pixel (fb, x_off, y_off, expected_result);
}
static CoglTexture *
make_texture (uint32_t color)
{
guchar *tex_data, *p;
uint8_t r = MASK_RED (color);
uint8_t g = MASK_GREEN (color);
uint8_t b = MASK_BLUE (color);
uint8_t a = MASK_ALPHA (color);
CoglTexture *tex;
tex_data = g_malloc (QUAD_WIDTH * QUAD_WIDTH * 4);
for (p = tex_data + QUAD_WIDTH * QUAD_WIDTH * 4; p > tex_data;)
{
*(--p) = a;
*(--p) = b;
*(--p) = g;
*(--p) = r;
}
/* Note: we don't use COGL_PIXEL_FORMAT_ANY for the internal format here
* since we don't want to allow Cogl to premultiply our data. */
tex = cogl_texture_new_from_data (QUAD_WIDTH,
QUAD_WIDTH,
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_RGBA_8888,
COGL_PIXEL_FORMAT_RGBA_8888,
QUAD_WIDTH * 4,
tex_data);
g_free (tex_data);
return tex;
}
static void
test_tex_combine (TestState *state,
int x,
int y,
uint32_t tex0_color,
uint32_t tex1_color,
uint32_t combine_constant,
const char *combine_string,
uint32_t expected_result)
{
CoglTexture *tex0, *tex1;
/* combine constant - when applicable */
uint8_t Cr = MASK_RED (combine_constant);
uint8_t Cg = MASK_GREEN (combine_constant);
uint8_t Cb = MASK_BLUE (combine_constant);
uint8_t Ca = MASK_ALPHA (combine_constant);
CoglColor combine_const_color;
CoglHandle material;
CoglBool status;
GError *error = NULL;
int y_off;
int x_off;
tex0 = make_texture (tex0_color);
tex1 = make_texture (tex1_color);
material = cogl_material_new ();
cogl_material_set_color4ub (material, 0x80, 0x80, 0x80, 0x80);
cogl_material_set_blend (material, "RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_material_set_layer (material, 0, tex0);
cogl_material_set_layer_combine (material, 0,
"RGBA = REPLACE (TEXTURE)", NULL);
cogl_material_set_layer (material, 1, tex1);
status = cogl_material_set_layer_combine (material, 1,
combine_string, &error);
if (!status)
{
/* It's not strictly a test failure; you need a more capable GPU or
* driver to test this texture combine string. */
g_debug ("Failed to test texture combine string %s: %s",
combine_string, error->message);
}
cogl_color_init_from_4ub (&combine_const_color, Cr, Cg, Cb, Ca);
cogl_material_set_layer_combine_constant (material, 1, &combine_const_color);
cogl_set_source (material);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
cogl_handle_unref (material);
cogl_object_unref (tex0);
cogl_object_unref (tex1);
/* See what we got... */
y_off = y * QUAD_WIDTH + (QUAD_WIDTH / 2);
x_off = x * QUAD_WIDTH + (QUAD_WIDTH / 2);
if (cogl_test_verbose ())
{
g_print ("test_tex_combine (%d, %d):\n%s\n", x, y, combine_string);
g_print (" texture 0 color = 0x%08lX\n", (unsigned long)tex0_color);
g_print (" texture 1 color = 0x%08lX\n", (unsigned long)tex1_color);
if (combine_constant != TEX_CONSTANT_UNUSED)
g_print (" combine constant = %02x, %02x, %02x, %02x\n",
Cr, Cg, Cb, Ca);
else
g_print (" combine constant = UNUSED\n");
}
test_utils_check_pixel (fb, x_off, y_off, expected_result);
}
static void
paint (TestState *state)
{
test_blend (state, 0, 0, /* position */
0xff0000ff, /* src */
0xffffffff, /* dst */
"RGBA = ADD (SRC_COLOR, 0)",
BLEND_CONSTANT_UNUSED,
0xff0000ff); /* expected */
test_blend (state, 1, 0, /* position */
0x11223344, /* src */
0x11223344, /* dst */
"RGBA = ADD (SRC_COLOR, DST_COLOR)",
BLEND_CONSTANT_UNUSED,
0x22446688); /* expected */
test_blend (state, 2, 0, /* position */
0x80808080, /* src */
0xffffffff, /* dst */
"RGBA = ADD (SRC_COLOR * (CONSTANT), 0)",
0x80808080, /* constant (RGBA all = 0.5 when normalized) */
0x40404040); /* expected */
test_blend (state, 3, 0, /* position */
0x80000080, /* src (alpha = 0.5 when normalized) */
0x40000000, /* dst */
"RGBA = ADD (SRC_COLOR * (SRC_COLOR[A]),"
" DST_COLOR * (1-SRC_COLOR[A]))",
BLEND_CONSTANT_UNUSED,
0x60000040); /* expected */
/* XXX:
* For all texture combine tests tex0 will use a combine mode of
* "RGBA = REPLACE (TEXTURE)"
*/
test_tex_combine (state, 4, 0, /* position */
0x11111111, /* texture 0 color */
0x22222222, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = ADD (PREVIOUS, TEXTURE)", /* tex combine */
0x33333333); /* expected */
test_tex_combine (state, 5, 0, /* position */
0x40404040, /* texture 0 color */
0x80808080, /* texture 1 color (RGBA all = 0.5) */
TEX_CONSTANT_UNUSED,
"RGBA = MODULATE (PREVIOUS, TEXTURE)", /* tex combine */
0x20202020); /* expected */
test_tex_combine (state, 6, 0, /* position */
0xffffff80, /* texture 0 color (alpha = 0.5) */
0xDEADBE40, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGB = REPLACE (PREVIOUS)"
"A = MODULATE (PREVIOUS, TEXTURE)", /* tex combine */
0xffffff20); /* expected */
/* XXX: we are assuming test_tex_combine creates a material with
* a color of 0x80808080 (i.e. the "PRIMARY" color) */
test_tex_combine (state, 7, 0, /* position */
0xffffff80, /* texture 0 color (alpha = 0.5) */
0xDEADBE20, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGB = REPLACE (PREVIOUS)"
"A = MODULATE (PRIMARY, TEXTURE)", /* tex combine */
0xffffff10); /* expected */
test_tex_combine (state, 8, 0, /* position */
0x11111111, /* texture 0 color */
0x22222222, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = ADD (PREVIOUS, 1-TEXTURE)", /* tex combine */
0xeeeeeeee); /* expected */
/* this is again assuming a primary color of 0x80808080 */
test_tex_combine (state, 9, 0, /* position */
0x10101010, /* texture 0 color */
0x20202020, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = INTERPOLATE (PREVIOUS, TEXTURE, PRIMARY)",
0x18181818); /* expected */
#if 0 /* using TEXTURE_N appears to be broken in cogl-blend-string.c */
test_tex_combine (state, 0, 1, /* position */
0xDEADBEEF, /* texture 0 color (not used) */
0x11223344, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = ADD (TEXTURE_1, TEXTURE)", /* tex combine */
0x22446688); /* expected */
#endif
test_tex_combine (state, 1, 1, /* position */
0x21314151, /* texture 0 color */
0x99999999, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = ADD_SIGNED (PREVIOUS, TEXTURE)", /* tex combine */
0x3a4a5a6a); /* expected */
test_tex_combine (state, 2, 1, /* position */
0xfedcba98, /* texture 0 color */
0x11111111, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGBA = SUBTRACT (PREVIOUS, TEXTURE)", /* tex combine */
0xedcba987); /* expected */
test_tex_combine (state, 3, 1, /* position */
0x8899aabb, /* texture 0 color */
0xbbaa9988, /* texture 1 color */
TEX_CONSTANT_UNUSED,
"RGB = DOT3_RGBA (PREVIOUS, TEXTURE)"
"A = REPLACE (PREVIOUS)",
0x2a2a2abb); /* expected */
}
void
test_blend_strings (void)
{
TestState state;
cogl_framebuffer_orthographic (fb, 0, 0,
cogl_framebuffer_get_width (fb),
cogl_framebuffer_get_height (fb),
-1,
100);
/* XXX: we have to push/pop a framebuffer since this test currently
* uses the legacy cogl_rectangle() api. */
cogl_push_framebuffer (fb);
paint (&state);
cogl_pop_framebuffer ();
if (cogl_test_verbose ())
g_print ("OK\n");
}
Reference in New Issue View Git Blame Copy Permalink