diff options
Diffstat (limited to 'cogl/tests/conform/test-pipeline-uniforms.c')
| -rw-r--r-- | cogl/tests/conform/test-pipeline-uniforms.c | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/cogl/tests/conform/test-pipeline-uniforms.c b/cogl/tests/conform/test-pipeline-uniforms.c new file mode 100644 index 000000000..4d27558d2 --- /dev/null +++ b/cogl/tests/conform/test-pipeline-uniforms.c @@ -0,0 +1,415 @@ +#include <cogl/cogl.h> + +#include <string.h> + +#include "test-utils.h" + +#define LONG_ARRAY_SIZE 128 + +typedef struct _TestState +{ + CoglPipeline *pipeline_red; + CoglPipeline *pipeline_green; + CoglPipeline *pipeline_blue; + + CoglPipeline *matrix_pipeline; + CoglPipeline *vector_pipeline; + CoglPipeline *int_pipeline; + + CoglPipeline *long_pipeline; + int long_uniform_locations[LONG_ARRAY_SIZE]; +} TestState; + +static const char +color_source[] = + "uniform float red, green, blue;\n" + "\n" + "void\n" + "main ()\n" + "{\n" + " cogl_color_out = vec4 (red, green, blue, 1.0);\n" + "}\n"; + +static const char +matrix_source[] = + "uniform mat4 matrix_array[4];\n" + "\n" + "void\n" + "main ()\n" + "{\n" + " vec4 color = vec4 (0.0, 0.0, 0.0, 1.0);\n" + " int i;\n" + "\n" + " for (i = 0; i < 4; i++)\n" + " color = matrix_array[i] * color;\n" + "\n" + " cogl_color_out = color;\n" + "}\n"; + +static const char +vector_source[] = + "uniform vec4 vector_array[2];\n" + "uniform vec3 short_vector;\n" + "\n" + "void\n" + "main ()\n" + "{\n" + " cogl_color_out = (vector_array[0] +\n" + " vector_array[1] +\n" + " vec4 (short_vector, 1.0));\n" + "}\n"; + +static const char +int_source[] = + "uniform ivec4 vector_array[2];\n" + "uniform int single_value;\n" + "\n" + "void\n" + "main ()\n" + "{\n" + " cogl_color_out = (vec4 (vector_array[0]) +\n" + " vec4 (vector_array[1]) +\n" + " vec4 (float (single_value), 0.0, 0.0, 255.0)) / 255.0;\n" + "}\n"; + +static const char +long_source[] = + "uniform int long_array[" G_STRINGIFY (LONG_ARRAY_SIZE) "];\n" + "const int last_index = " G_STRINGIFY (LONG_ARRAY_SIZE) " - 1;\n" + "\n" + "void\n" + "main ()\n" + "{\n" + " cogl_color_out = vec4 (float (long_array[last_index]), 0.0, 0.0, 1.0);\n" + "}\n"; + +static CoglPipeline * +create_pipeline_for_shader (TestState *state, const char *shader_source) +{ + CoglPipeline *pipeline; + CoglHandle shader; + CoglHandle program; + + pipeline = cogl_pipeline_new (test_ctx); + + shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT); + cogl_shader_source (shader, shader_source); + + program = cogl_create_program (); + cogl_program_attach_shader (program, shader); + + cogl_pipeline_set_user_program (pipeline, program); + + cogl_handle_unref (shader); + cogl_handle_unref (program); + + return pipeline; +} + +static void +init_state (TestState *state) +{ + int uniform_location; + + state->pipeline_red = create_pipeline_for_shader (state, color_source); + + uniform_location = + cogl_pipeline_get_uniform_location (state->pipeline_red, "red"); + cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 1.0f); + uniform_location = + cogl_pipeline_get_uniform_location (state->pipeline_red, "green"); + cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 0.0f); + uniform_location = + cogl_pipeline_get_uniform_location (state->pipeline_red, "blue"); + cogl_pipeline_set_uniform_1f (state->pipeline_red, uniform_location, 0.0f); + + state->pipeline_green = cogl_pipeline_copy (state->pipeline_red); + uniform_location = + cogl_pipeline_get_uniform_location (state->pipeline_green, "green"); + cogl_pipeline_set_uniform_1f (state->pipeline_green, uniform_location, 1.0f); + + state->pipeline_blue = cogl_pipeline_copy (state->pipeline_red); + uniform_location = + cogl_pipeline_get_uniform_location (state->pipeline_blue, "blue"); + cogl_pipeline_set_uniform_1f (state->pipeline_blue, uniform_location, 1.0f); + + state->matrix_pipeline = create_pipeline_for_shader (state, matrix_source); + state->vector_pipeline = create_pipeline_for_shader (state, vector_source); + state->int_pipeline = create_pipeline_for_shader (state, int_source); + + state->long_pipeline = NULL; +} + +static void +init_long_pipeline_state (TestState *state) +{ + int i; + + state->long_pipeline = create_pipeline_for_shader (state, long_source); + + /* This tries to lookup a large number of uniform names to make sure + that the bitmask of overriden uniforms flows over the size of a + single long so that it has to resort to allocating it */ + for (i = 0; i < LONG_ARRAY_SIZE; i++) + { + char *uniform_name = g_strdup_printf ("long_array[%i]", i); + state->long_uniform_locations[i] = + cogl_pipeline_get_uniform_location (state->long_pipeline, + uniform_name); + g_free (uniform_name); + } +} + +static void +destroy_state (TestState *state) +{ + cogl_object_unref (state->pipeline_red); + cogl_object_unref (state->pipeline_green); + cogl_object_unref (state->pipeline_blue); + cogl_object_unref (state->matrix_pipeline); + cogl_object_unref (state->vector_pipeline); + cogl_object_unref (state->int_pipeline); + + if (state->long_pipeline) + cogl_object_unref (state->long_pipeline); +} + +static void +paint_pipeline (CoglPipeline *pipeline, int pos) +{ + cogl_framebuffer_draw_rectangle (test_fb, pipeline, + pos * 10, 0, pos * 10 + 10, 10); +} + +static void +paint_color_pipelines (TestState *state) +{ + CoglPipeline *temp_pipeline; + int uniform_location; + int i; + + /* Paint with the first pipeline that sets the uniforms to bright + red */ + paint_pipeline (state->pipeline_red, 0); + + /* Paint with the two other pipelines. These inherit from the red + pipeline and only override one other component. The values for + the two other components should be inherited from the red + pipeline. */ + paint_pipeline (state->pipeline_green, 1); + paint_pipeline (state->pipeline_blue, 2); + + /* Try modifying a single pipeline for multiple rectangles */ + temp_pipeline = cogl_pipeline_copy (state->pipeline_green); + uniform_location = cogl_pipeline_get_uniform_location (temp_pipeline, + "green"); + + for (i = 0; i <= 8; i++) + { + cogl_pipeline_set_uniform_1f (temp_pipeline, uniform_location, + i / 8.0f); + paint_pipeline (temp_pipeline, i + 3); + } + + cogl_object_unref (temp_pipeline); +} + +static void +paint_matrix_pipeline (CoglPipeline *pipeline) +{ + CoglMatrix matrices[4]; + float matrix_floats[16 * 4]; + int uniform_location; + int i; + + for (i = 0; i < 4; i++) + cogl_matrix_init_identity (matrices + i); + + /* Use the first matrix to make the color red */ + cogl_matrix_translate (matrices + 0, 1.0f, 0.0f, 0.0f); + + /* Rotate the vertex so that it ends up green */ + cogl_matrix_rotate (matrices + 1, 90.0f, 0.0f, 0.0f, 1.0f); + + /* Scale the vertex so it ends up halved */ + cogl_matrix_scale (matrices + 2, 0.5f, 0.5f, 0.5f); + + /* Add a blue component in the final matrix. The final matrix is + uploaded as transposed so we need to transpose first to cancel + that out */ + cogl_matrix_translate (matrices + 3, 0.0f, 0.0f, 1.0f); + cogl_matrix_transpose (matrices + 3); + + for (i = 0; i < 4; i++) + memcpy (matrix_floats + i * 16, + cogl_matrix_get_array (matrices + i), + sizeof (float) * 16); + + /* Set the first three matrices as transposed */ + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "matrix_array"); + cogl_pipeline_set_uniform_matrix (pipeline, + uniform_location, + 4, /* dimensions */ + 3, /* count */ + FALSE, /* not transposed */ + matrix_floats); + + /* Set the last matrix as untransposed */ + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "matrix_array[3]"); + cogl_pipeline_set_uniform_matrix (pipeline, + uniform_location, + 4, /* dimensions */ + 1, /* count */ + TRUE, /* transposed */ + matrix_floats + 16 * 3); + + paint_pipeline (pipeline, 12); +} + +static void +paint_vector_pipeline (CoglPipeline *pipeline) +{ + float vector_array_values[] = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f }; + float short_vector_values[] = { 0.0f, 0.0f, 1.0f }; + int uniform_location; + + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "vector_array"); + cogl_pipeline_set_uniform_float (pipeline, + uniform_location, + 4, /* n_components */ + 2, /* count */ + vector_array_values); + + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "short_vector"); + cogl_pipeline_set_uniform_float (pipeline, + uniform_location, + 3, /* n_components */ + 1, /* count */ + short_vector_values); + + paint_pipeline (pipeline, 13); +} + +static void +paint_int_pipeline (CoglPipeline *pipeline) +{ + int vector_array_values[] = { 0x00, 0x00, 0xff, 0x00, + 0x00, 0xff, 0x00, 0x00 }; + int single_value = 0x80; + int uniform_location; + + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "vector_array"); + cogl_pipeline_set_uniform_int (pipeline, + uniform_location, + 4, /* n_components */ + 2, /* count */ + vector_array_values); + + uniform_location = + cogl_pipeline_get_uniform_location (pipeline, "single_value"); + cogl_pipeline_set_uniform_1i (pipeline, + uniform_location, + single_value); + + paint_pipeline (pipeline, 14); +} + +static void +paint_long_pipeline (TestState *state) +{ + int i; + + for (i = 0; i < LONG_ARRAY_SIZE; i++) + { + int location = state->long_uniform_locations[i]; + + cogl_pipeline_set_uniform_1i (state->long_pipeline, + location, + i == LONG_ARRAY_SIZE - 1); + } + + paint_pipeline (state->long_pipeline, 15); +} + +static void +paint (TestState *state) +{ + cogl_framebuffer_clear4f (test_fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1); + + paint_color_pipelines (state); + paint_matrix_pipeline (state->matrix_pipeline); + paint_vector_pipeline (state->vector_pipeline); + paint_int_pipeline (state->int_pipeline); +} + +static void +check_pos (int pos, uint32_t color) +{ + test_utils_check_pixel (test_fb, pos * 10 + 5, 5, color); +} + +static void +validate_result (void) +{ + int i; + + check_pos (0, 0xff0000ff); + check_pos (1, 0xffff00ff); + check_pos (2, 0xff00ffff); + + for (i = 0; i <= 8; i++) + { + int green_value = i / 8.0f * 255.0f + 0.5f; + check_pos (i + 3, 0xff0000ff + (green_value << 16)); + } + + check_pos (12, 0x0080ffff); + check_pos (13, 0xffffffff); + check_pos (14, 0x80ffffff); +} + +static void +validate_long_pipeline_result (void) +{ + check_pos (15, 0xff0000ff); +} + +void +test_pipeline_uniforms (void) +{ + TestState state; + + init_state (&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 (); + + /* Try the test again after querying the location of a large + number of uniforms. This should verify that the bitmasks + still work even if they have to allocate a separate array to + store the bits */ + + init_long_pipeline_state (&state); + paint (&state); + paint_long_pipeline (&state); + validate_result (); + validate_long_pipeline_result (); + + destroy_state (&state); + + if (cogl_test_verbose ()) + g_print ("OK\n"); +} |