3881fd3259
This adds experimental 2.0 api replacements for the cogl_rectangle[_*]
functions that don't depend on having a current pipeline set on the
context via cogl_{set,push}_source() or having a current framebuffer set
on the context via cogl_push_framebuffer(). The aim for 2.0 is to switch
away from having a statefull context that affects drawing to having
framebuffer drawing apis that are explicitly passed a framebuffer and
pipeline.
To test this change several of the conformance tests were updated to use
this api instead of cogl_rectangle and
cogl_rectangle_with_texture_coords. Since it's quite laborious going
through all of the conformance tests the opportunity was taken to make
other clean ups in the conformance tests to replace other uses of
1.x api with experimental 2.0 api so long as that didn't affect what was
being tested.
141 lines
4.6 KiB
C
141 lines
4.6 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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typedef struct _TestState
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{
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int width;
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int height;
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} TestState;
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static void
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validate_result (TestState *state)
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{
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guint32 *pixels, *p;
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char *screen_pixel;
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const char *intended_pixel = "#ffffff";
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/* The textures are setup so that when added together with the
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correct matrices then all of the pixels should be white. We can
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verify this by reading back the entire stage */
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pixels = g_malloc (state->width * state->height * 4);
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cogl_framebuffer_read_pixels (fb, 0, 0, state->width, state->height,
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COGL_PIXEL_FORMAT_RGBA_8888_PRE,
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(guint8 *)pixels);
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for (p = pixels; p < pixels + state->width * state->height; p++)
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{
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screen_pixel = g_strdup_printf ("#%06x", GUINT32_FROM_BE (*p) >> 8);
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g_assert_cmpstr (screen_pixel, ==, intended_pixel);
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g_free (screen_pixel);
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}
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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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/* This texture is painted mirrored around the x-axis */
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guint8 data0[] = {
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0xff, 0x00, 0x00, /* red -> becomes bottom left */
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0x00, 0xff, 0x00, /* green -> becomes bottom right */
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0x00, 0x00, 0xff, /* blue -> becomes top left */
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0xff, 0x00, 0xff /* magenta -> becomes top right */
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};
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/* This texture is painted mirrored about the y-axis */
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guint8 data1[] = {
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0x00, 0xff, 0x00, /* green -> becomes top right */
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0xff, 0xff, 0x00, /* yellow -> becomes top left */
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0xff, 0x00, 0xff, /* magenta -> becomes bottom right */
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0x00, 0xff, 0xff /* cyan -> becomes bottom left */
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};
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CoglTexture *tex0, *tex1;
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CoglPipeline *pipeline;
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CoglMatrix matrix;
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GError *error = NULL;
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cogl_framebuffer_orthographic (fb,
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0, 0,
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state->width,
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state->height,
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-1,
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100);
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cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
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cogl_matrix_init_identity (&matrix);
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cogl_framebuffer_set_modelview_matrix (fb, &matrix);
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tex0 = cogl_texture_new_from_data (2, 2,
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COGL_TEXTURE_NO_ATLAS,
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COGL_PIXEL_FORMAT_RGB_888,
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COGL_PIXEL_FORMAT_ANY,
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6,
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data0);
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tex1 = cogl_texture_new_from_data (2, 2,
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COGL_TEXTURE_NO_ATLAS,
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COGL_PIXEL_FORMAT_RGB_888,
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COGL_PIXEL_FORMAT_ANY,
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6,
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data1);
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pipeline = cogl_pipeline_new (ctx);
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/* Set the two textures as layers */
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cogl_pipeline_set_layer_texture (pipeline, 0, tex0);
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cogl_pipeline_set_layer_filters (pipeline, 0,
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COGL_PIPELINE_FILTER_NEAREST,
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COGL_PIPELINE_FILTER_NEAREST);
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cogl_pipeline_set_layer_texture (pipeline, 1, tex1);
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cogl_pipeline_set_layer_filters (pipeline, 1,
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COGL_PIPELINE_FILTER_NEAREST,
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COGL_PIPELINE_FILTER_NEAREST);
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/* Set a combine mode so that the two textures get added together */
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if (!cogl_pipeline_set_layer_combine (pipeline, 1,
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"RGBA=ADD(PREVIOUS, TEXTURE)",
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&error))
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{
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g_warning ("Error setting blend string: %s", error->message);
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g_assert_not_reached ();
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}
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/* Set a matrix on the first layer so that it will mirror about the y-axis */
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cogl_matrix_init_identity (&matrix);
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cogl_matrix_translate (&matrix, 0.0f, 1.0f, 0.0f);
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cogl_matrix_scale (&matrix, 1.0f, -1.0f, 1.0f);
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cogl_pipeline_set_layer_matrix (pipeline, 0, &matrix);
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/* Set a matrix on the second layer so that it will mirror about the x-axis */
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cogl_matrix_init_identity (&matrix);
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cogl_matrix_translate (&matrix, 1.0f, 0.0f, 0.0f);
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cogl_matrix_scale (&matrix, -1.0f, 1.0f, 1.0f);
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cogl_pipeline_set_layer_matrix (pipeline, 1, &matrix);
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cogl_framebuffer_draw_rectangle (fb,
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pipeline,
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0, 0,
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state->width, state->height);
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cogl_object_unref (tex1);
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cogl_object_unref (tex0);
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cogl_object_unref (pipeline);
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}
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void
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test_pipeline_user_matrix (void)
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{
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TestState state;
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state.width = cogl_framebuffer_get_width (fb);
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state.height = cogl_framebuffer_get_height (fb);
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paint (&state);
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validate_result (&state);
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if (cogl_test_verbose ())
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g_print ("OK\n");
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}
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