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6436cd073d
This declares the interface types CoglFramebuffer, CoglBuffer, CoglTexture, CoglMetaTexture and CoglPrimitiveTexture as void when including the public cogl.h header so that users don't have to use lots of C type casts between instance types and interface types. This also removes all of the COGL_XYZ() type cast macros since they do nothing more than compile time type casting but it's less readable if you haven't seen that coding pattern before. Unlike with gobject based apis that use per-type macros for casting and performing runtime type checking we instead prefer to do our runtime type checking internally within the front-end public apis when objects are passed into Cogl. This greatly reduces the verbosity for users of the api and may help reduce the chance of excessive runtime type checking that can sometimes be a problem. (cherry picked from commit 248a76f5eac7e5ae4fb45208577f9a55360812a7) Since we can't break the 1.x api this version of the patch actually defines compatible NOP macros within deprecated/cogl-type-casts.h
328 lines
11 KiB
C
328 lines
11 KiB
C
#include <cogl/cogl.h>
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#include <string.h>
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#include "test-utils.h"
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#define SOURCE_SIZE 32
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#define SOURCE_DIVISIONS_X 2
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#define SOURCE_DIVISIONS_Y 2
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#define DIVISION_WIDTH (SOURCE_SIZE / SOURCE_DIVISIONS_X)
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#define DIVISION_HEIGHT (SOURCE_SIZE / SOURCE_DIVISIONS_Y)
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#define TEST_INSET 1
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static const uint32_t
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corner_colors[SOURCE_DIVISIONS_X * SOURCE_DIVISIONS_Y] =
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{
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0xff0000ff, /* red top left */
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0x00ff00ff, /* green top right */
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0x0000ffff, /* blue bottom left */
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0xff00ffff /* purple bottom right */
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};
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typedef struct _TestState
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{
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CoglTexture2D *tex;
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} TestState;
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static CoglTexture2D *
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create_source (TestState *state)
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{
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int dx, dy;
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uint8_t *data = g_malloc (SOURCE_SIZE * SOURCE_SIZE * 4);
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CoglTexture2D *tex;
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/* Create a texture with a different coloured rectangle at each
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corner */
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for (dy = 0; dy < SOURCE_DIVISIONS_Y; dy++)
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for (dx = 0; dx < SOURCE_DIVISIONS_X; dx++)
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{
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uint8_t *p = (data + dy * DIVISION_HEIGHT * SOURCE_SIZE * 4 +
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dx * DIVISION_WIDTH * 4);
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int x, y;
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for (y = 0; y < DIVISION_HEIGHT; y++)
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{
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for (x = 0; x < DIVISION_WIDTH; x++)
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{
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uint32_t color = GUINT32_FROM_BE (corner_colors[dx + dy * SOURCE_DIVISIONS_X]);
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memcpy (p, &color, 4);
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p += 4;
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}
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p += SOURCE_SIZE * 4 - DIVISION_WIDTH * 4;
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}
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}
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tex = cogl_texture_2d_new_from_data (test_ctx,
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SOURCE_SIZE, SOURCE_SIZE,
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COGL_PIXEL_FORMAT_RGBA_8888,
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COGL_PIXEL_FORMAT_ANY,
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SOURCE_SIZE * 4,
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data,
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NULL);
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return tex;
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}
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static CoglTexture2D *
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create_test_texture (TestState *state)
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{
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CoglTexture2D *tex;
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uint8_t *data = g_malloc (256 * 256 * 4), *p = data;
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int x, y;
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/* Create a texture that is 256x256 where the red component ranges
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from 0->255 along the x axis and the green component ranges from
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0->255 along the y axis. The blue and alpha components are all
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255 */
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for (y = 0; y < 256; y++)
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for (x = 0; x < 256; x++)
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{
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*(p++) = x;
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*(p++) = y;
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*(p++) = 255;
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*(p++) = 255;
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}
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tex = cogl_texture_2d_new_from_data (test_ctx,
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256, 256,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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COGL_PIXEL_FORMAT_ANY,
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256 * 4,
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data,
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NULL);
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g_free (data);
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return tex;
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}
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static void
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paint (TestState *state)
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{
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CoglTexture2D *full_texture;
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CoglSubTexture *sub_texture, *sub_sub_texture;
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CoglPipeline *pipeline = cogl_pipeline_new (test_ctx);
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/* Create a sub texture of the bottom right quarter of the texture */
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sub_texture = cogl_sub_texture_new (test_ctx,
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state->tex,
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DIVISION_WIDTH,
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DIVISION_HEIGHT,
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DIVISION_WIDTH,
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DIVISION_HEIGHT);
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/* Paint it */
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cogl_pipeline_set_layer_texture (pipeline, 0, sub_texture);
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cogl_object_unref (sub_texture);
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cogl_framebuffer_draw_rectangle (test_fb, pipeline,
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0.0f, 0.0f, DIVISION_WIDTH, DIVISION_HEIGHT);
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/* Repeat a sub texture of the top half of the full texture. This is
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documented to be undefined so it doesn't technically have to work
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but it will with the current implementation */
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sub_texture = cogl_sub_texture_new (test_ctx,
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state->tex,
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0, 0,
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SOURCE_SIZE,
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DIVISION_HEIGHT);
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cogl_pipeline_set_layer_texture (pipeline, 0, sub_texture);
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cogl_object_unref (sub_texture);
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cogl_framebuffer_draw_textured_rectangle (test_fb, pipeline,
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0.0f,
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SOURCE_SIZE,
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SOURCE_SIZE * 2.0f,
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SOURCE_SIZE * 1.5f,
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0.0f, 0.0f,
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2.0f, 1.0f);
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/* Create a sub texture of a sub texture */
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full_texture = create_test_texture (state);
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sub_texture = cogl_sub_texture_new (test_ctx,
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full_texture,
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20, 10, 30, 20);
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cogl_object_unref (full_texture);
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sub_sub_texture = cogl_sub_texture_new (test_ctx,
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sub_texture,
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20, 10, 10, 10);
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cogl_object_unref (sub_texture);
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cogl_pipeline_set_layer_texture (pipeline, 0, sub_sub_texture);
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cogl_object_unref (sub_sub_texture);
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cogl_framebuffer_draw_rectangle (test_fb, pipeline,
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0.0f, SOURCE_SIZE * 2.0f,
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10.0f, SOURCE_SIZE * 2.0f + 10.0f);
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cogl_object_unref (pipeline);
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}
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static void
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validate_part (int xpos, int ypos,
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int width, int height,
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uint32_t color)
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{
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test_utils_check_region (test_fb,
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xpos + TEST_INSET,
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ypos + TEST_INSET,
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width - TEST_INSET - 2,
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height - TEST_INSET - 2,
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color);
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}
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static uint8_t *
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create_update_data (void)
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{
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uint8_t *data = g_malloc (256 * 256 * 4), *p = data;
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int x, y;
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/* Create some image data that is 256x256 where the blue component
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ranges from 0->255 along the x axis and the alpha component
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ranges from 0->255 along the y axis. The red and green components
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are all zero */
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for (y = 0; y < 256; y++)
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for (x = 0; x < 256; x++)
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{
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*(p++) = 0;
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*(p++) = 0;
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*(p++) = x;
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*(p++) = y;
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}
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return data;
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}
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static void
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validate_result (TestState *state)
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{
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int i, division_num, x, y;
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CoglTexture2D *test_tex;
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CoglSubTexture *sub_texture;
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uint8_t *texture_data, *p;
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int tex_width, tex_height;
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/* Sub texture of the bottom right corner of the texture */
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validate_part (0, 0, DIVISION_WIDTH, DIVISION_HEIGHT,
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corner_colors[
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(SOURCE_DIVISIONS_Y - 1) * SOURCE_DIVISIONS_X +
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SOURCE_DIVISIONS_X - 1]);
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/* Sub texture of the top half repeated horizontally */
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for (i = 0; i < 2; i++)
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for (division_num = 0; division_num < SOURCE_DIVISIONS_X; division_num++)
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validate_part (i * SOURCE_SIZE + division_num * DIVISION_WIDTH,
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SOURCE_SIZE,
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DIVISION_WIDTH, DIVISION_HEIGHT,
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corner_colors[division_num]);
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/* Sub sub texture */
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p = texture_data = g_malloc (10 * 10 * 4);
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cogl_flush ();
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cogl_framebuffer_read_pixels (test_fb,
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0, SOURCE_SIZE * 2, 10, 10,
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COGL_PIXEL_FORMAT_RGBA_8888,
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p);
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for (y = 0; y < 10; y++)
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for (x = 0; x < 10; x++)
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{
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g_assert (*(p++) == x + 40);
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g_assert (*(p++) == y + 20);
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p += 2;
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}
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g_free (texture_data);
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/* Try reading back the texture data */
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sub_texture = cogl_sub_texture_new (test_ctx,
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state->tex,
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SOURCE_SIZE / 4,
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SOURCE_SIZE / 4,
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SOURCE_SIZE / 2,
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SOURCE_SIZE / 2);
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tex_width = cogl_texture_get_width (sub_texture);
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tex_height = cogl_texture_get_height (sub_texture);
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p = texture_data = g_malloc (tex_width * tex_height * 4);
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cogl_texture_get_data (sub_texture,
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COGL_PIXEL_FORMAT_RGBA_8888,
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tex_width * 4,
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texture_data);
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for (y = 0; y < tex_height; y++)
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for (x = 0; x < tex_width; x++)
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{
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int div_x = ((x * SOURCE_SIZE / 2 / tex_width + SOURCE_SIZE / 4) /
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DIVISION_WIDTH);
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int div_y = ((y * SOURCE_SIZE / 2 / tex_height + SOURCE_SIZE / 4) /
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DIVISION_HEIGHT);
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uint32_t reference = corner_colors[div_x + div_y * SOURCE_DIVISIONS_X] >> 8;
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uint32_t color = GUINT32_FROM_BE (*((uint32_t *)p)) >> 8;
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g_assert (color == reference);
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p += 4;
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}
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g_free (texture_data);
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cogl_object_unref (sub_texture);
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/* Create a 256x256 test texture */
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test_tex = create_test_texture (state);
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/* Create a sub texture the views the center half of the texture */
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sub_texture = cogl_sub_texture_new (test_ctx,
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test_tex,
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64, 64, 128, 128);
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/* Update the center half of the sub texture */
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texture_data = create_update_data ();
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cogl_texture_set_region (sub_texture,
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0, 0, 32, 32, 64, 64, 256, 256,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE, 256 * 4,
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texture_data);
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g_free (texture_data);
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cogl_object_unref (sub_texture);
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/* Get the texture data */
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p = texture_data = g_malloc (256 * 256 * 4);
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cogl_texture_get_data (test_tex,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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256 * 4, texture_data);
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/* Verify the texture data */
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for (y = 0; y < 256; y++)
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for (x = 0; x < 256; x++)
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{
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/* If we're in the center quarter */
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if (x >= 96 && x < 160 && y >= 96 && y < 160)
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{
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g_assert ((*p++) == 0);
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g_assert ((*p++) == 0);
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g_assert ((*p++) == x - 96);
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g_assert ((*p++) == y - 96);
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}
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else
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{
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g_assert ((*p++) == x);
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g_assert ((*p++) == y);
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g_assert ((*p++) == 255);
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g_assert ((*p++) == 255);
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}
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}
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g_free (texture_data);
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cogl_object_unref (test_tex);
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}
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void
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test_sub_texture (void)
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{
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TestState state;
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state.tex = create_source (&state);
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cogl_framebuffer_orthographic (test_fb,
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0, 0,
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cogl_framebuffer_get_width (test_fb),
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cogl_framebuffer_get_height (test_fb),
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-1,
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100);
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paint (&state);
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validate_result (&state);
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cogl_object_unref (state.tex);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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