mirror of
https://github.com/brl/mutter.git
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cogl/tests: Add fp16 offscreen texture format store/paint tests
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3441>
This commit is contained in:
Sebastian Wick
parent
60c082caaf
commit
289e511c1a
@ -18,6 +18,7 @@
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*/
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*/
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#include <cogl/cogl.h>
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#include <cogl/cogl.h>
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#include <cogl/cogl-half-float.h>
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#include "tests/cogl-test-utils.h"
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#include "tests/cogl-test-utils.h"
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@ -31,6 +32,133 @@ get_bits (uint32_t in,
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return (in >> begin) & mask;
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return (in >> begin) & mask;
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}
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}
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static void
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test_offscreen_texture_formats_store_fp16 (void)
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{
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const uint16_t red = cogl_float_to_half (72.912f);
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const uint16_t green = cogl_float_to_half (0.20f);
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const uint16_t blue = cogl_float_to_half (0.01f);
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const uint16_t alpha = cogl_float_to_half (0.7821f);
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const uint16_t one = cogl_float_to_half (1.0f);
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GError *error = NULL;
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CoglPixelFormat formats[] = {
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COGL_PIXEL_FORMAT_RGBX_FP_16161616,
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COGL_PIXEL_FORMAT_RGBA_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_BGRX_FP_16161616,
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COGL_PIXEL_FORMAT_BGRA_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_XRGB_FP_16161616,
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COGL_PIXEL_FORMAT_ARGB_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_XBGR_FP_16161616,
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COGL_PIXEL_FORMAT_ABGR_FP_16161616_PRE,
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};
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int i;
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if (!cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_HALF_FLOAT))
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{
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g_test_skip ("Driver does not support fp formats");
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return;
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}
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for (i = 0; i < G_N_ELEMENTS (formats); i++)
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{
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CoglTexture *tex;
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CoglOffscreen *offscreen;
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uint32_t rgb8_readback[4];
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int j, k;
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/* Allocate 2x2 to ensure we avoid any fast paths. */
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tex = cogl_texture_2d_new_with_format (test_ctx, 2, 2, formats[i]);
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offscreen = cogl_offscreen_new_with_texture (tex);
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cogl_framebuffer_allocate (COGL_FRAMEBUFFER (offscreen), &error);
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g_assert_no_error (error);
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cogl_framebuffer_clear4f (COGL_FRAMEBUFFER (offscreen),
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COGL_BUFFER_BIT_COLOR,
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cogl_half_to_float (red),
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cogl_half_to_float (green),
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cogl_half_to_float (blue),
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cogl_half_to_float (alpha));
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for (j = 0; j < G_N_ELEMENTS (formats); j++)
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{
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uint8_t readback[8 * 4];
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cogl_framebuffer_read_pixels (COGL_FRAMEBUFFER (offscreen), 0, 0, 2, 2,
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formats[j],
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readback);
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for (k = 0; k < 4; k++)
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{
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uint16_t channels[4];
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uint16_t *pixel_data = (uint16_t *)&readback[8 * k];
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switch (formats[j])
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{
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case COGL_PIXEL_FORMAT_RGBX_FP_16161616:
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case COGL_PIXEL_FORMAT_RGBA_FP_16161616_PRE:
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channels[0] = pixel_data[0];
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channels[1] = pixel_data[1];
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channels[2] = pixel_data[2];
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channels[3] = pixel_data[3];
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break;
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case COGL_PIXEL_FORMAT_BGRX_FP_16161616:
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case COGL_PIXEL_FORMAT_BGRA_FP_16161616_PRE:
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channels[0] = pixel_data[2];
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channels[1] = pixel_data[1];
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channels[2] = pixel_data[0];
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channels[3] = pixel_data[3];
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break;
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case COGL_PIXEL_FORMAT_XRGB_FP_16161616:
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case COGL_PIXEL_FORMAT_ARGB_FP_16161616_PRE:
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channels[0] = pixel_data[1];
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channels[1] = pixel_data[2];
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channels[2] = pixel_data[3];
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channels[3] = pixel_data[0];
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break;
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case COGL_PIXEL_FORMAT_XBGR_FP_16161616:
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case COGL_PIXEL_FORMAT_ABGR_FP_16161616_PRE:
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channels[0] = pixel_data[3];
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channels[1] = pixel_data[2];
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channels[2] = pixel_data[1];
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channels[3] = pixel_data[0];
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break;
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default:
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g_assert_not_reached ();
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}
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if ((formats[i] & COGL_A_BIT) && (formats[j] & COGL_A_BIT))
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g_assert_cmpint (channels[3], ==, alpha);
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else if (!(formats[i] & COGL_A_BIT) && !(formats[j] & COGL_A_BIT))
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g_assert_cmpint (channels[3], ==, one);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[0]) - cogl_half_to_float (red)), <, 0.005);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[1]) - cogl_half_to_float (green)), <, 0.005);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[2]) - cogl_half_to_float (blue)), <, 0.005);
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}
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}
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cogl_framebuffer_read_pixels (COGL_FRAMEBUFFER (offscreen), 0, 0, 2, 2,
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COGL_PIXEL_FORMAT_RGBX_8888,
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(uint8_t *) &rgb8_readback);
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for (k = 0; k < 4; k++)
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{
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uint8_t *rgb8_buf = (uint8_t *) &rgb8_readback[k];
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/* test only green and blue because they are < 1.0 */
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g_assert_cmpfloat (fabs (cogl_half_to_float (green) - (rgb8_buf[1] / 255.0f)), <, 0.005);
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g_assert_cmpfloat (fabs (cogl_half_to_float (blue) - (rgb8_buf[2] / 255.0f)), <, 0.005);
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if (!(formats[i] & COGL_A_BIT))
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g_assert_cmpint (rgb8_buf[3], ==, 0xff);
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}
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g_object_unref (offscreen);
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g_object_unref (tex);
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}
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}
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static int
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static int
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rgb10_to_rgb8 (int rgb10)
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rgb10_to_rgb8 (int rgb10)
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{
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{
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@ -287,6 +415,136 @@ test_offscreen_texture_formats_store_rgb8 (void)
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}
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}
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}
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}
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static void
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test_offscreen_texture_formats_paint_fp16 (void)
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{
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const uint16_t red = cogl_float_to_half (72.912f);
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const uint16_t green = cogl_float_to_half (0.20f);
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const uint16_t blue = cogl_float_to_half (0.01f);
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const uint16_t alpha = cogl_float_to_half (0.7821f);
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const uint16_t one = cogl_float_to_half (1.0f);
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CoglPixelFormat formats[] = {
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COGL_PIXEL_FORMAT_RGBX_FP_16161616,
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COGL_PIXEL_FORMAT_RGBA_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_BGRX_FP_16161616,
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COGL_PIXEL_FORMAT_BGRA_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_XRGB_FP_16161616,
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COGL_PIXEL_FORMAT_ARGB_FP_16161616_PRE,
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COGL_PIXEL_FORMAT_XBGR_FP_16161616,
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COGL_PIXEL_FORMAT_ABGR_FP_16161616_PRE,
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};
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int i;
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if (!cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_HALF_FLOAT))
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{
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g_test_skip ("Driver does not support fp formats");
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return;
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}
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for (i = 0; i < G_N_ELEMENTS (formats); i++)
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{
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CoglTexture *tex_src;
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CoglOffscreen *offscreen_src;
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GError *error = NULL;
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int j;
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tex_src = cogl_texture_2d_new_with_format (test_ctx, 2, 2, formats[i]);
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offscreen_src = cogl_offscreen_new_with_texture (tex_src);
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cogl_framebuffer_allocate (COGL_FRAMEBUFFER (offscreen_src), &error);
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g_assert_no_error (error);
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for (j = 0; j < G_N_ELEMENTS (formats); j++)
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{
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CoglTexture *tex_dst;
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CoglOffscreen *offscreen_dst;
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CoglPipeline *pipeline;
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uint8_t readback[8 * 4];
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int k;
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tex_dst = cogl_texture_2d_new_with_format (test_ctx, 2, 2, formats[j]);
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offscreen_dst = cogl_offscreen_new_with_texture (tex_dst);
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cogl_framebuffer_allocate (COGL_FRAMEBUFFER (offscreen_dst), &error);
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g_assert_no_error (error);
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cogl_framebuffer_clear4f (COGL_FRAMEBUFFER (offscreen_src),
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COGL_BUFFER_BIT_COLOR,
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cogl_half_to_float (red),
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cogl_half_to_float (green),
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cogl_half_to_float (blue),
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cogl_half_to_float (alpha));
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pipeline = cogl_pipeline_new (test_ctx);
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cogl_pipeline_set_blend (pipeline,
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"RGBA = ADD (SRC_COLOR, 0)", NULL);
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cogl_pipeline_set_layer_texture (pipeline, 0, tex_src);
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cogl_framebuffer_draw_rectangle (COGL_FRAMEBUFFER (offscreen_dst),
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pipeline,
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-1.0, -1.0, 1.0, 1.0);
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g_object_unref (pipeline);
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cogl_framebuffer_read_pixels (COGL_FRAMEBUFFER (offscreen_dst),
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0, 0, 2, 2, formats[j],
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readback);
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for (k = 0; k < 4; k++)
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{
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uint16_t channels[4];
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uint16_t *pixel_data = (uint16_t *)&readback[8 * k];
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switch (formats[j])
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{
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case COGL_PIXEL_FORMAT_RGBX_FP_16161616:
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case COGL_PIXEL_FORMAT_RGBA_FP_16161616_PRE:
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channels[0] = pixel_data[0];
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channels[1] = pixel_data[1];
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channels[2] = pixel_data[2];
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channels[3] = pixel_data[3];
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break;
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case COGL_PIXEL_FORMAT_BGRX_FP_16161616:
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case COGL_PIXEL_FORMAT_BGRA_FP_16161616_PRE:
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channels[0] = pixel_data[2];
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channels[1] = pixel_data[1];
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channels[2] = pixel_data[0];
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channels[3] = pixel_data[3];
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break;
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case COGL_PIXEL_FORMAT_XRGB_FP_16161616:
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case COGL_PIXEL_FORMAT_ARGB_FP_16161616_PRE:
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channels[0] = pixel_data[1];
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channels[1] = pixel_data[2];
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channels[2] = pixel_data[3];
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channels[3] = pixel_data[0];
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break;
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case COGL_PIXEL_FORMAT_XBGR_FP_16161616:
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case COGL_PIXEL_FORMAT_ABGR_FP_16161616_PRE:
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channels[0] = pixel_data[3];
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channels[1] = pixel_data[2];
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channels[2] = pixel_data[1];
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channels[3] = pixel_data[0];
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break;
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default:
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g_assert_not_reached ();
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}
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if ((formats[i] & COGL_A_BIT) && (formats[j] & COGL_A_BIT))
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g_assert_cmpint (channels[3], ==, alpha);
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else if (!(formats[i] & COGL_A_BIT) && !(formats[j] & COGL_A_BIT))
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g_assert_cmpint (channels[3], ==, one);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[0]) - cogl_half_to_float (red)), <, 0.005);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[1]) - cogl_half_to_float (green)), <, 0.005);
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g_assert_cmpfloat (fabs (cogl_half_to_float (channels[2]) - cogl_half_to_float (blue)), <, 0.005);
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}
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g_object_unref (offscreen_dst);
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g_object_unref (tex_dst);
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}
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g_object_unref (offscreen_src);
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g_object_unref (tex_src);
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}
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}
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static void
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static void
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test_offscreen_texture_formats_paint_rgb10 (void)
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test_offscreen_texture_formats_paint_rgb10 (void)
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{
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{
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@ -548,10 +806,14 @@ test_offscreen_texture_formats_paint_rgb8 (void)
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}
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}
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COGL_TEST_SUITE (
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COGL_TEST_SUITE (
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g_test_add_func ("/offscreen/texture-formats/store-fp16",
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test_offscreen_texture_formats_store_fp16);
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g_test_add_func ("/offscreen/texture-formats/store-rgb10",
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g_test_add_func ("/offscreen/texture-formats/store-rgb10",
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test_offscreen_texture_formats_store_rgb10);
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test_offscreen_texture_formats_store_rgb10);
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g_test_add_func ("/offscreen/texture-formats/store-8",
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g_test_add_func ("/offscreen/texture-formats/store-8",
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test_offscreen_texture_formats_store_rgb8);
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test_offscreen_texture_formats_store_rgb8);
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g_test_add_func ("/offscreen/texture-formats/paint-fp16",
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test_offscreen_texture_formats_paint_fp16);
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g_test_add_func ("/offscreen/texture-formats/paint-rgb10",
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g_test_add_func ("/offscreen/texture-formats/paint-rgb10",
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test_offscreen_texture_formats_paint_rgb10);
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test_offscreen_texture_formats_paint_rgb10);
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g_test_add_func ("/offscreen/texture-formats/paint-rgb8",
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g_test_add_func ("/offscreen/texture-formats/paint-rgb8",
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