mirror of
https://github.com/brl/mutter.git
synced 2024-12-27 21:32:14 +00:00
121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
#define COGL_VERSION_MIN_REQUIRED COGL_VERSION_1_0
|
|
|
|
#include <cogl/cogl.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include "test-declarations.h"
|
|
#include "test-utils.h"
|
|
|
|
typedef struct _TestState
|
|
{
|
|
int paddiing;
|
|
} TestState;
|
|
|
|
static CoglTexture *
|
|
create_dummy_texture (void)
|
|
{
|
|
/* Create a dummy 1x1 green texture to replace the color from the
|
|
vertex shader */
|
|
static const uint8_t data[4] = { 0x00, 0xff, 0x00, 0xff };
|
|
|
|
return test_utils_texture_new_from_data (test_ctx,
|
|
1, 1, /* size */
|
|
TEST_UTILS_TEXTURE_NONE,
|
|
COGL_PIXEL_FORMAT_RGB_888,
|
|
4, /* rowstride */
|
|
data);
|
|
}
|
|
|
|
static void
|
|
paint (TestState *state)
|
|
{
|
|
CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
|
|
CoglTexture *tex;
|
|
CoglColor color;
|
|
GError *error = NULL;
|
|
CoglHandle shader, program;
|
|
|
|
cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
|
|
cogl_framebuffer_clear (test_fb, COGL_BUFFER_BIT_COLOR, &color);
|
|
|
|
/* Set the primary vertex color as red */
|
|
cogl_color_init_from_4ub (&color, 0xff, 0x00, 0x00, 0xff);
|
|
cogl_pipeline_set_color (pipeline, &color);
|
|
|
|
/* Override the vertex color in the texture environment with a
|
|
constant green color provided by a texture */
|
|
tex = create_dummy_texture ();
|
|
cogl_pipeline_set_layer_texture (pipeline, 0, tex);
|
|
cogl_object_unref (tex);
|
|
if (!cogl_pipeline_set_layer_combine (pipeline, 0,
|
|
"RGBA=REPLACE(TEXTURE)",
|
|
&error))
|
|
{
|
|
g_warning ("Error setting layer combine: %s", error->message);
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
/* Set up a dummy vertex shader that does nothing but the usual
|
|
fixed function transform */
|
|
shader = cogl_create_shader (COGL_SHADER_TYPE_VERTEX);
|
|
cogl_shader_source (shader,
|
|
"void\n"
|
|
"main ()\n"
|
|
"{\n"
|
|
" cogl_position_out = "
|
|
"cogl_modelview_projection_matrix * "
|
|
"cogl_position_in;\n"
|
|
" cogl_color_out = cogl_color_in;\n"
|
|
" cogl_tex_coord_out[0] = cogl_tex_coord_in;\n"
|
|
"}\n");
|
|
|
|
program = cogl_create_program ();
|
|
cogl_program_attach_shader (program, shader);
|
|
cogl_program_link (program);
|
|
|
|
cogl_object_unref (shader);
|
|
|
|
/* Draw something without the program */
|
|
cogl_framebuffer_draw_rectangle (test_fb, pipeline,
|
|
0, 0, 50, 50);
|
|
|
|
/* Draw it again using the program. It should look exactly the same */
|
|
cogl_pipeline_set_user_program (pipeline, program);
|
|
cogl_object_unref (program);
|
|
|
|
cogl_framebuffer_draw_rectangle (test_fb, pipeline,
|
|
50, 0, 100, 50);
|
|
cogl_pipeline_set_user_program (pipeline, NULL);
|
|
|
|
cogl_object_unref (pipeline);
|
|
}
|
|
|
|
static void
|
|
validate_result (CoglFramebuffer *framebuffer)
|
|
{
|
|
/* Non-shader version */
|
|
test_utils_check_pixel (framebuffer, 25, 25, 0x00ff0000);
|
|
/* Shader version */
|
|
test_utils_check_pixel (framebuffer, 75, 25, 0x00ff0000);
|
|
}
|
|
|
|
void
|
|
test_just_vertex_shader (void)
|
|
{
|
|
TestState state;
|
|
|
|
cogl_framebuffer_orthographic (test_fb,
|
|
0, 0,
|
|
cogl_framebuffer_get_width (test_fb),
|
|
cogl_framebuffer_get_height (test_fb),
|
|
-1,
|
|
100);
|
|
|
|
paint (&state);
|
|
validate_result (test_fb);
|
|
|
|
if (cogl_test_verbose ())
|
|
g_print ("OK\n");
|
|
}
|