afbb13e1a4
This adds compiler symbol deprecation declarations for old Cogl APIs so that users can easily see via compiler warning when they are using these symbols, and also see a hint for what the apis should be replaced with. So that users of Cogl can manage when to show these warnings this introduces a scheme borrowed from glib whereby you can declare what version of the Cogl api you are using: COGL_VERSION_MIN_REQUIRED can be defined to indicate the oldest Cogl api that the application wants to use. Cogl will only warn about deprecations for symbols that were deprecated earlier than this required version. If this is left undefined then by default Cogl will warn about all deprecations. COGL_VERSION_MAX_ALLOWED can be defined to indicate the newest api that the application uses. If the application uses symbols newer than this then Cogl will give a warning about that. This patch removes the need to maintain the COGL_DISABLE_DEPRECATED guards around deprecated symbols. This patch fixes a few uses of deprecated symbols in the examples/ Reviewed-by: Neil Roberts <neil@linux.intel.com>
311 lines
9.2 KiB
C
311 lines
9.2 KiB
C
#define COGL_VERSION_MIN_REQUIRED COGL_VERSION_1_0
|
|
|
|
#include <cogl/cogl.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include "test-utils.h"
|
|
|
|
/* Size the texture so that it is just off a power of two to encourage
|
|
it so use software tiling when NPOTs aren't available */
|
|
#define TEXTURE_SIZE 257
|
|
|
|
/* Amount of pixels to skip off the top, bottom, left and right of the
|
|
texture when reading back the stage */
|
|
#define TEST_INSET 2
|
|
|
|
/* Size to actually render the texture at */
|
|
#define TEXTURE_RENDER_SIZE 8
|
|
|
|
typedef struct _TestState
|
|
{
|
|
CoglTexture *texture;
|
|
CoglFramebuffer *offscreen;
|
|
CoglTexture *offscreen_tex;
|
|
int width, height;
|
|
} TestState;
|
|
|
|
static void
|
|
validate_part (CoglFramebuffer *framebuffer,
|
|
int xnum, int ynum, CoglBool shown)
|
|
{
|
|
test_utils_check_region (framebuffer,
|
|
xnum * TEXTURE_RENDER_SIZE + TEST_INSET,
|
|
ynum * TEXTURE_RENDER_SIZE + TEST_INSET,
|
|
TEXTURE_RENDER_SIZE - TEST_INSET * 2,
|
|
TEXTURE_RENDER_SIZE - TEST_INSET * 2,
|
|
shown ? 0xff0000ff : 0x000000ff);
|
|
}
|
|
|
|
/* We draw everything 16 times. The draw number is used as a bitmask
|
|
to test all of the combinations of enabling legacy state, both
|
|
winding orders and all four culling modes */
|
|
|
|
#define USE_LEGACY_STATE(draw_num) (((draw_num) & 0x01) >> 0)
|
|
#define FRONT_WINDING(draw_num) (((draw_num) & 0x02) >> 1)
|
|
#define CULL_FACE_MODE(draw_num) (((draw_num) & 0x0c) >> 2)
|
|
|
|
static void
|
|
paint_test_backface_culling (TestState *state,
|
|
CoglFramebuffer *framebuffer)
|
|
{
|
|
int draw_num;
|
|
CoglPipeline *base_pipeline = cogl_pipeline_new (test_ctx);
|
|
|
|
cogl_framebuffer_orthographic (framebuffer,
|
|
0, 0,
|
|
state->width,
|
|
state->height,
|
|
-1,
|
|
100);
|
|
|
|
cogl_framebuffer_clear4f (framebuffer,
|
|
COGL_BUFFER_BIT_COLOR | COGL_BUFFER_BIT_STENCIL,
|
|
0, 0, 0, 1);
|
|
|
|
cogl_pipeline_set_layer_texture (base_pipeline, 0, state->texture);
|
|
|
|
cogl_pipeline_set_layer_filters (base_pipeline, 0,
|
|
COGL_PIPELINE_FILTER_NEAREST,
|
|
COGL_PIPELINE_FILTER_NEAREST);
|
|
|
|
cogl_push_framebuffer (framebuffer);
|
|
|
|
/* Render the scene sixteen times to test all of the combinations of
|
|
cull face mode, legacy state and winding orders */
|
|
for (draw_num = 0; draw_num < 16; draw_num++)
|
|
{
|
|
float x1 = 0, x2, y1 = 0, y2 = (float)(TEXTURE_RENDER_SIZE);
|
|
CoglTextureVertex verts[4];
|
|
CoglPipeline *pipeline;
|
|
|
|
cogl_push_matrix ();
|
|
cogl_translate (0, TEXTURE_RENDER_SIZE * draw_num, 0);
|
|
|
|
pipeline = cogl_pipeline_copy (base_pipeline);
|
|
|
|
cogl_set_backface_culling_enabled (USE_LEGACY_STATE (draw_num));
|
|
cogl_pipeline_set_front_face_winding (pipeline, FRONT_WINDING (draw_num));
|
|
cogl_pipeline_set_cull_face_mode (pipeline, CULL_FACE_MODE (draw_num));
|
|
|
|
cogl_push_source (pipeline);
|
|
|
|
memset (verts, 0, sizeof (verts));
|
|
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
/* Draw a front-facing texture */
|
|
cogl_rectangle (x1, y1, x2, y2);
|
|
|
|
x1 = x2;
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
/* Draw a front-facing texture with flipped texcoords */
|
|
cogl_rectangle_with_texture_coords (x1, y1, x2, y2,
|
|
1.0, 0.0, 0.0, 1.0);
|
|
|
|
x1 = x2;
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
/* Draw a back-facing texture */
|
|
cogl_rectangle (x2, y1, x1, y2);
|
|
|
|
x1 = x2;
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
/* If the texture is sliced then cogl_polygon doesn't work so
|
|
we'll just use a solid color instead */
|
|
if (cogl_texture_is_sliced (state->texture))
|
|
cogl_set_source_color4ub (255, 0, 0, 255);
|
|
|
|
/* Draw a front-facing polygon */
|
|
verts[0].x = x1; verts[0].y = y2;
|
|
verts[1].x = x2; verts[1].y = y2;
|
|
verts[2].x = x2; verts[2].y = y1;
|
|
verts[3].x = x1; verts[3].y = y1;
|
|
verts[0].tx = 0; verts[0].ty = 0;
|
|
verts[1].tx = 1.0; verts[1].ty = 0;
|
|
verts[2].tx = 1.0; verts[2].ty = 1.0;
|
|
verts[3].tx = 0; verts[3].ty = 1.0;
|
|
cogl_polygon (verts, 4, FALSE);
|
|
|
|
x1 = x2;
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
/* Draw a back-facing polygon */
|
|
verts[0].x = x1; verts[0].y = y1;
|
|
verts[1].x = x2; verts[1].y = y1;
|
|
verts[2].x = x2; verts[2].y = y2;
|
|
verts[3].x = x1; verts[3].y = y2;
|
|
verts[0].tx = 0; verts[0].ty = 0;
|
|
verts[1].tx = 1.0; verts[1].ty = 0;
|
|
verts[2].tx = 1.0; verts[2].ty = 1.0;
|
|
verts[3].tx = 0; verts[3].ty = 1.0;
|
|
cogl_polygon (verts, 4, FALSE);
|
|
|
|
x1 = x2;
|
|
x2 = x1 + (float)(TEXTURE_RENDER_SIZE);
|
|
|
|
cogl_pop_matrix ();
|
|
|
|
cogl_pop_source ();
|
|
cogl_object_unref (pipeline);
|
|
}
|
|
|
|
cogl_pop_framebuffer ();
|
|
|
|
cogl_object_unref (base_pipeline);
|
|
}
|
|
|
|
static void
|
|
validate_result (CoglFramebuffer *framebuffer, int y_offset)
|
|
{
|
|
int draw_num;
|
|
|
|
for (draw_num = 0; draw_num < 16; draw_num++)
|
|
{
|
|
CoglBool cull_front, cull_back;
|
|
CoglPipelineCullFaceMode cull_mode;
|
|
|
|
if (USE_LEGACY_STATE (draw_num))
|
|
cull_mode = COGL_PIPELINE_CULL_FACE_MODE_BACK;
|
|
else
|
|
cull_mode = CULL_FACE_MODE (draw_num);
|
|
|
|
switch (cull_mode)
|
|
{
|
|
case COGL_PIPELINE_CULL_FACE_MODE_NONE:
|
|
cull_front = FALSE;
|
|
cull_back = FALSE;
|
|
break;
|
|
|
|
case COGL_PIPELINE_CULL_FACE_MODE_FRONT:
|
|
cull_front = TRUE;
|
|
cull_back = FALSE;
|
|
break;
|
|
|
|
case COGL_PIPELINE_CULL_FACE_MODE_BACK:
|
|
cull_front = FALSE;
|
|
cull_back = TRUE;
|
|
break;
|
|
|
|
case COGL_PIPELINE_CULL_FACE_MODE_BOTH:
|
|
cull_front = TRUE;
|
|
cull_back = TRUE;
|
|
break;
|
|
}
|
|
|
|
if (FRONT_WINDING (draw_num) == COGL_WINDING_CLOCKWISE)
|
|
{
|
|
CoglBool tmp = cull_front;
|
|
cull_front = cull_back;
|
|
cull_back = tmp;
|
|
}
|
|
|
|
/* Front-facing texture */
|
|
validate_part (framebuffer,
|
|
0, y_offset + draw_num, !cull_front);
|
|
/* Front-facing texture with flipped tex coords */
|
|
validate_part (framebuffer,
|
|
1, y_offset + draw_num, !cull_front);
|
|
/* Back-facing texture */
|
|
validate_part (framebuffer,
|
|
2, y_offset + draw_num, !cull_back);
|
|
/* Front-facing texture polygon */
|
|
validate_part (framebuffer,
|
|
3, y_offset + draw_num, !cull_front);
|
|
/* Back-facing texture polygon */
|
|
validate_part (framebuffer,
|
|
4, y_offset + draw_num, !cull_back);
|
|
}
|
|
}
|
|
|
|
static void
|
|
paint (TestState *state)
|
|
{
|
|
CoglPipeline *pipeline;
|
|
|
|
paint_test_backface_culling (state, test_fb);
|
|
|
|
/*
|
|
* Now repeat the test but rendered to an offscreen
|
|
* framebuffer. Note that by default the conformance tests are
|
|
* always run to an offscreen buffer but we might as well have this
|
|
* check anyway in case it is being run with COGL_TEST_ONSCREEN=1
|
|
*/
|
|
paint_test_backface_culling (state, state->offscreen);
|
|
|
|
/* Copy the result of the offscreen rendering for validation and
|
|
* also so we can have visual feedback. */
|
|
pipeline = cogl_pipeline_new (test_ctx);
|
|
cogl_pipeline_set_layer_texture (pipeline, 0, state->offscreen_tex);
|
|
cogl_framebuffer_draw_rectangle (test_fb,
|
|
pipeline,
|
|
0, TEXTURE_RENDER_SIZE * 16,
|
|
state->width,
|
|
state->height + TEXTURE_RENDER_SIZE * 16);
|
|
cogl_object_unref (pipeline);
|
|
|
|
validate_result (test_fb, 0);
|
|
validate_result (test_fb, 16);
|
|
}
|
|
|
|
static CoglTexture *
|
|
make_texture (void)
|
|
{
|
|
guchar *tex_data, *p;
|
|
CoglTexture *tex;
|
|
|
|
tex_data = g_malloc (TEXTURE_SIZE * TEXTURE_SIZE * 4);
|
|
|
|
for (p = tex_data + TEXTURE_SIZE * TEXTURE_SIZE * 4; p > tex_data;)
|
|
{
|
|
*(--p) = 255;
|
|
*(--p) = 0;
|
|
*(--p) = 0;
|
|
*(--p) = 255;
|
|
}
|
|
|
|
tex = cogl_texture_new_from_data (TEXTURE_SIZE,
|
|
TEXTURE_SIZE,
|
|
COGL_TEXTURE_NO_ATLAS,
|
|
COGL_PIXEL_FORMAT_RGBA_8888,
|
|
COGL_PIXEL_FORMAT_ANY,
|
|
TEXTURE_SIZE * 4,
|
|
tex_data);
|
|
|
|
g_free (tex_data);
|
|
|
|
return tex;
|
|
}
|
|
|
|
void
|
|
test_backface_culling (void)
|
|
{
|
|
TestState state;
|
|
CoglTexture *tex;
|
|
|
|
state.width = cogl_framebuffer_get_width (test_fb);
|
|
state.height = cogl_framebuffer_get_height (test_fb);
|
|
|
|
state.offscreen = NULL;
|
|
|
|
state.texture = make_texture ();
|
|
|
|
tex = cogl_texture_new_with_size (state.width, state.height,
|
|
COGL_TEXTURE_NO_SLICING,
|
|
COGL_PIXEL_FORMAT_ANY); /* internal fmt */
|
|
state.offscreen = COGL_FRAMEBUFFER (cogl_offscreen_new_to_texture (tex));
|
|
state.offscreen_tex = tex;
|
|
|
|
paint (&state);
|
|
|
|
cogl_object_unref (state.offscreen);
|
|
cogl_object_unref (state.offscreen_tex);
|
|
cogl_object_unref (state.texture);
|
|
|
|
if (cogl_test_verbose ())
|
|
g_print ("OK\n");
|
|
}
|
|
|