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mutter-performance-source/tests/conform/test-premult.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

290 lines
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C
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#include <cogl/cogl.h>
#include <string.h>
#include "test-utils.h"
#define QUAD_WIDTH 32
#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)
static guchar *
gen_tex_data (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);
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;
}
return tex_data;
}
static CoglTexture *
make_texture (uint32_t color,
CoglPixelFormat src_format,
CoglPixelFormat internal_format)
{
CoglTexture2D *tex_2d;
guchar *tex_data = gen_tex_data (color);
tex_2d = cogl_texture_2d_new_from_data (ctx,
QUAD_WIDTH,
QUAD_WIDTH,
src_format,
internal_format,
QUAD_WIDTH * 4,
tex_data,
NULL);
g_free (tex_data);
return COGL_TEXTURE (tex_2d);
}
static void
set_region (CoglTexture *tex,
uint32_t color,
CoglPixelFormat format)
{
guchar *tex_data = gen_tex_data (color);
cogl_texture_set_region (tex,
0, 0, /* src x, y */
0, 0, /* dst x, y */
QUAD_WIDTH, QUAD_WIDTH, /* dst width, height */
QUAD_WIDTH, QUAD_WIDTH, /* src width, height */
format,
0, /* auto compute row stride */
tex_data);
}
static void
check_texture (CoglPipeline *pipeline,
CoglHandle material,
int x,
int y,
CoglTexture *tex,
uint32_t expected_result)
{
/* Legacy */
cogl_push_framebuffer (fb);
cogl_material_set_layer (material, 0, tex);
cogl_set_source (material);
cogl_rectangle (x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
test_utils_check_pixel (fb, x * QUAD_WIDTH + QUAD_WIDTH / 2, y * QUAD_WIDTH + QUAD_WIDTH / 2, expected_result);
cogl_pop_framebuffer ();
/* New API */
cogl_pipeline_set_layer_texture (pipeline, 0, COGL_TEXTURE (tex));
cogl_framebuffer_draw_rectangle (fb, pipeline,
x * QUAD_WIDTH,
y * QUAD_WIDTH,
x * QUAD_WIDTH + QUAD_WIDTH,
y * QUAD_WIDTH + QUAD_WIDTH);
test_utils_check_pixel (fb, x * QUAD_WIDTH + QUAD_WIDTH / 2, y * QUAD_WIDTH + QUAD_WIDTH / 2, expected_result);
}
void
test_premult (void)
{
CoglPipeline *pipeline;
CoglHandle material;
CoglTexture *tex;
cogl_framebuffer_orthographic (fb, 0, 0,
cogl_framebuffer_get_width (fb),
cogl_framebuffer_get_height (fb),
-1,
100);
cogl_framebuffer_clear4f (fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 1.0f, 1.0f, 1.0f);
/* Legacy */
material = cogl_material_new ();
cogl_material_set_blend (material,
"RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_material_set_layer_combine (material, 0,
"RGBA = REPLACE (TEXTURE)", NULL);
/* New API */
pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_blend (pipeline,
"RGBA = ADD (SRC_COLOR, 0)", NULL);
cogl_pipeline_set_layer_combine (pipeline, 0,
"RGBA = REPLACE (TEXTURE)", NULL);
/* If the user explicitly specifies an unmultiplied internal format then
* Cogl shouldn't automatically premultiply the given texture data... */
if (cogl_test_verbose ())
g_print ("make_texture (0xff00ff80, "
"src = RGBA_8888, internal = RGBA_8888)\n");
tex = make_texture (0xff00ff80,
COGL_PIXEL_FORMAT_RGBA_8888, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888); /* internal format */
check_texture (pipeline, material, 0, 0, /* position */
tex,
0xff00ff80); /* expected */
/* If the user explicitly requests a premultiplied internal format and
* gives unmultiplied src data then Cogl should always premultiply that
* for us */
if (cogl_test_verbose ())
g_print ("make_texture (0xff00ff80, "
"src = RGBA_8888, internal = RGBA_8888_PRE)\n");
tex = make_texture (0xff00ff80,
COGL_PIXEL_FORMAT_RGBA_8888, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE); /* internal format */
check_texture (pipeline, material, 1, 0, /* position */
tex,
0x80008080); /* expected */
/* If the user gives COGL_PIXEL_FORMAT_ANY for the internal format then
* by default Cogl should premultiply the given texture data...
* (In the future there will be additional Cogl API to control this
* behaviour) */
if (cogl_test_verbose ())
g_print ("make_texture (0xff00ff80, "
"src = RGBA_8888, internal = ANY)\n");
tex = make_texture (0xff00ff80,
COGL_PIXEL_FORMAT_RGBA_8888, /* src format */
COGL_PIXEL_FORMAT_ANY); /* internal format */
check_texture (pipeline, material, 2, 0, /* position */
tex,
0x80008080); /* expected */
/* If the user requests a premultiplied internal texture format and supplies
* premultiplied source data, Cogl should never modify that source data...
*/
if (cogl_test_verbose ())
g_print ("make_texture (0x80008080, "
"src = RGBA_8888_PRE, "
"internal = RGBA_8888_PRE)\n");
tex = make_texture (0x80008080,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE); /* internal format */
check_texture (pipeline, material, 3, 0, /* position */
tex,
0x80008080); /* expected */
/* If the user requests an unmultiplied internal texture format, but
* supplies premultiplied source data, then Cogl should always
* un-premultiply the source data... */
if (cogl_test_verbose ())
g_print ("make_texture (0x80008080, "
"src = RGBA_8888_PRE, internal = RGBA_8888)\n");
tex = make_texture (0x80008080,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888); /* internal format */
check_texture (pipeline, material, 4, 0, /* position */
tex,
0xff00ff80); /* expected */
/* If the user allows any internal texture format and provides premultipled
* source data then by default Cogl shouldn't modify the source data...
* (In the future there will be additional Cogl API to control this
* behaviour) */
if (cogl_test_verbose ())
g_print ("make_texture (0x80008080, "
"src = RGBA_8888_PRE, internal = ANY)\n");
tex = make_texture (0x80008080,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* src format */
COGL_PIXEL_FORMAT_ANY); /* internal format */
check_texture (pipeline, material, 5, 0, /* position */
tex,
0x80008080); /* expected */
/*
* Test cogl_texture_set_region() ....
*/
if (cogl_test_verbose ())
g_print ("make_texture (0xDEADBEEF, "
"src = RGBA_8888, internal = RGBA_8888)\n");
tex = make_texture (0xDEADBEEF,
COGL_PIXEL_FORMAT_RGBA_8888, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888); /* internal format */
if (cogl_test_verbose ())
g_print ("set_region (0xff00ff80, RGBA_8888)\n");
set_region (tex, 0xff00ff80, COGL_PIXEL_FORMAT_RGBA_8888);
check_texture (pipeline, material, 6, 0, /* position */
tex,
0xff00ff80); /* expected */
/* Updating a texture region for an unmultiplied texture using premultiplied
* region data should result in Cogl unmultiplying the given region data...
*/
if (cogl_test_verbose ())
g_print ("make_texture (0xDEADBEEF, "
"src = RGBA_8888, internal = RGBA_8888)\n");
tex = make_texture (0xDEADBEEF,
COGL_PIXEL_FORMAT_RGBA_8888, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888); /* internal format */
if (cogl_test_verbose ())
g_print ("set_region (0x80008080, RGBA_8888_PRE)\n");
set_region (tex, 0x80008080, COGL_PIXEL_FORMAT_RGBA_8888_PRE);
check_texture (pipeline, material, 7, 0, /* position */
tex,
0xff00ff80); /* expected */
if (cogl_test_verbose ())
g_print ("make_texture (0xDEADBEEF, "
"src = RGBA_8888_PRE, "
"internal = RGBA_8888_PRE)\n");
tex = make_texture (0xDEADBEEF,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE); /* internal format */
if (cogl_test_verbose ())
g_print ("set_region (0x80008080, RGBA_8888_PRE)\n");
set_region (tex, 0x80008080, COGL_PIXEL_FORMAT_RGBA_8888_PRE);
check_texture (pipeline, material, 8, 0, /* position */
tex,
0x80008080); /* expected */
/* Updating a texture region for a premultiplied texture using unmultiplied
* region data should result in Cogl premultiplying the given region data...
*/
if (cogl_test_verbose ())
g_print ("make_texture (0xDEADBEEF, "
"src = RGBA_8888_PRE, "
"internal = RGBA_8888_PRE)\n");
tex = make_texture (0xDEADBEEF,
COGL_PIXEL_FORMAT_RGBA_8888_PRE, /* src format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE); /* internal format */
if (cogl_test_verbose ())
g_print ("set_region (0xff00ff80, RGBA_8888)\n");
set_region (tex, 0xff00ff80, COGL_PIXEL_FORMAT_RGBA_8888);
check_texture (pipeline, material, 9, 0, /* position */
tex,
0x80008080); /* expected */
if (cogl_test_verbose ())
g_print ("OK\n");
}
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