| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "egl_utils.h" |
| |
| #include <EGL/egl.h> |
| |
| // Converts an EGL decimal value to a string. |
| static gchar* egl_decimal_to_string(EGLint value) { |
| return g_strdup_printf("%d", value); |
| } |
| |
| // Converts an EGL hexadecimal value to a string. |
| static gchar* egl_hexadecimal_to_string(EGLint value) { |
| return g_strdup_printf("0x%x", value); |
| } |
| |
| // Converts an EGL enumerated value to a string. |
| static gchar* egl_enum_to_string(EGLint value) { |
| if (value == EGL_FALSE) |
| return g_strdup("EGL_FALSE"); |
| else if (value == EGL_LUMINANCE_BUFFER) |
| return g_strdup("EGL_LUMINANCE_BUFFER"); |
| else if (value == EGL_NONE) |
| return g_strdup("EGL_NONE"); |
| else if (value == EGL_NON_CONFORMANT_CONFIG) |
| return g_strdup("EGL_NON_CONFORMANT_CONFIG"); |
| else if (value == EGL_RGB_BUFFER) |
| return g_strdup("EGL_RGB_BUFFER"); |
| else if (value == EGL_SLOW_CONFIG) |
| return g_strdup("EGL_SLOW_CONFIG"); |
| else if (value == EGL_TRANSPARENT_RGB) |
| return g_strdup("EGL_TRANSPARENT_RGB"); |
| else if (value == EGL_TRUE) |
| return g_strdup("EGL_TRUE"); |
| else |
| return nullptr; |
| } |
| |
| // Ensures the given bit is not set in a bitfield. Returns TRUE if that bit was |
| // cleared. |
| static gboolean clear_bit(EGLint* field, EGLint bit) { |
| if ((*field & bit) == 0) |
| return FALSE; |
| |
| *field ^= bit; |
| return TRUE; |
| } |
| |
| // Converts an EGL renderable type bitfield to a string. |
| static gchar* egl_renderable_type_to_string(EGLint value) { |
| EGLint v = value; |
| g_autoptr(GPtrArray) strings = g_ptr_array_new_with_free_func(g_free); |
| if (clear_bit(&v, EGL_OPENGL_ES_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_OPENGL_ES_BIT")); |
| if (clear_bit(&v, EGL_OPENVG_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_OPENVG_BIT")); |
| if (clear_bit(&v, EGL_OPENGL_ES2_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_OPENGL_ES2_BIT")); |
| if (clear_bit(&v, EGL_OPENGL_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_OPENGL_BIT")); |
| if (clear_bit(&v, EGL_OPENGL_ES3_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_OPENGL_ES3_BIT")); |
| if (v != 0) |
| g_ptr_array_add(strings, egl_hexadecimal_to_string(v)); |
| g_ptr_array_add(strings, nullptr); |
| |
| return g_strjoinv("|", reinterpret_cast<gchar**>(strings->pdata)); |
| } |
| |
| // Converts an EGL surface type bitfield to a string. |
| static gchar* egl_surface_type_to_string(EGLint value) { |
| EGLint v = value; |
| g_autoptr(GPtrArray) strings = g_ptr_array_new_with_free_func(g_free); |
| if (clear_bit(&v, EGL_PBUFFER_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_PBUFFER_BIT")); |
| if (clear_bit(&v, EGL_PIXMAP_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_PIXMAP_BIT")); |
| if (clear_bit(&v, EGL_WINDOW_BIT)) |
| g_ptr_array_add(strings, g_strdup("EGL_WINDOW_BIT")); |
| if (v != 0) |
| g_ptr_array_add(strings, egl_hexadecimal_to_string(v)); |
| g_ptr_array_add(strings, nullptr); |
| |
| return g_strjoinv("|", reinterpret_cast<gchar**>(strings->pdata)); |
| } |
| |
| const gchar* egl_error_to_string(EGLint error) { |
| switch (error) { |
| case EGL_SUCCESS: |
| return "Success"; |
| case EGL_NOT_INITIALIZED: |
| return "Not Initialized"; |
| case EGL_BAD_ACCESS: |
| return "Bad Access"; |
| case EGL_BAD_ALLOC: |
| return "Bad Allocation"; |
| case EGL_BAD_ATTRIBUTE: |
| return "Bad Attribute"; |
| case EGL_BAD_CONTEXT: |
| return "Bad Context"; |
| case EGL_BAD_CONFIG: |
| return "Bad Configuration"; |
| case EGL_BAD_CURRENT_SURFACE: |
| return "Bad Current Surface"; |
| case EGL_BAD_DISPLAY: |
| return "Bad Display"; |
| case EGL_BAD_SURFACE: |
| return "Bad Surface"; |
| case EGL_BAD_MATCH: |
| return "Bad Match"; |
| case EGL_BAD_PARAMETER: |
| return "Bad Parameter"; |
| case EGL_BAD_NATIVE_PIXMAP: |
| return "Bad Native Pixmap"; |
| case EGL_BAD_NATIVE_WINDOW: |
| return "Bad Native Window"; |
| case EGL_CONTEXT_LOST: |
| return "Context Lost"; |
| default: |
| return "Unknown Error"; |
| } |
| } |
| |
| gchar* egl_config_to_string(EGLDisplay display, EGLConfig config) { |
| struct { |
| EGLint attribute; |
| const gchar* name; |
| gchar* (*to_string)(EGLint value); |
| } config_items[] = {{ |
| EGL_CONFIG_ID, |
| "EGL_CONFIG_ID", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_BUFFER_SIZE, |
| "EGL_BUFFER_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_COLOR_BUFFER_TYPE, |
| "EGL_COLOR_BUFFER_TYPE", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_TRANSPARENT_TYPE, |
| "EGL_TRANSPARENT_TYPE", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_LEVEL, |
| "EGL_LEVEL", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_RED_SIZE, |
| "EGL_RED_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_GREEN_SIZE, |
| "EGL_GREEN_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_BLUE_SIZE, |
| "EGL_BLUE_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_ALPHA_SIZE, |
| "EGL_ALPHA_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_DEPTH_SIZE, |
| "EGL_DEPTH_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_STENCIL_SIZE, |
| "EGL_STENCIL_SIZE", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_SAMPLES, |
| "EGL_SAMPLES", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_SAMPLE_BUFFERS, |
| "EGL_SAMPLE_BUFFERS", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_NATIVE_VISUAL_ID, |
| "EGL_NATIVE_VISUAL_ID", |
| egl_hexadecimal_to_string, |
| }, |
| { |
| EGL_NATIVE_VISUAL_TYPE, |
| "EGL_NATIVE_VISUAL_TYPE", |
| egl_hexadecimal_to_string, |
| }, |
| { |
| EGL_NATIVE_RENDERABLE, |
| "EGL_NATIVE_RENDERABLE", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_CONFIG_CAVEAT, |
| "EGL_CONFIG_CAVEAT", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_BIND_TO_TEXTURE_RGB, |
| "EGL_BIND_TO_TEXTURE_RGB", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_BIND_TO_TEXTURE_RGBA, |
| "EGL_BIND_TO_TEXTURE_RGBA", |
| egl_enum_to_string, |
| }, |
| { |
| EGL_RENDERABLE_TYPE, |
| "EGL_RENDERABLE_TYPE", |
| egl_renderable_type_to_string, |
| }, |
| { |
| EGL_CONFORMANT, |
| "EGL_CONFORMANT", |
| egl_renderable_type_to_string, |
| }, |
| { |
| EGL_SURFACE_TYPE, |
| "EGL_SURFACE_TYPE", |
| egl_surface_type_to_string, |
| }, |
| { |
| EGL_MAX_PBUFFER_WIDTH, |
| "EGL_MAX_PBUFFER_WIDTH", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_MAX_PBUFFER_HEIGHT, |
| "EGL_MAX_PBUFFER_HEIGHT", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_MAX_PBUFFER_PIXELS, |
| "EGL_MAX_PBUFFER_PIXELS", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_MIN_SWAP_INTERVAL, |
| "EGL_MIN_SWAP_INTERVAL", |
| egl_decimal_to_string, |
| }, |
| { |
| EGL_MAX_SWAP_INTERVAL, |
| "EGL_MAX_SWAP_INTERVAL", |
| egl_decimal_to_string, |
| }, |
| {EGL_NONE, nullptr, nullptr}}; |
| |
| g_autoptr(GPtrArray) strings = g_ptr_array_new_with_free_func(g_free); |
| for (int i = 0; config_items[i].attribute != EGL_NONE; i++) { |
| EGLint value; |
| if (!eglGetConfigAttrib(display, config, config_items[i].attribute, &value)) |
| continue; |
| g_autofree gchar* value_string = config_items[i].to_string(value); |
| if (value_string == nullptr) |
| value_string = egl_hexadecimal_to_string(value); |
| g_ptr_array_add( |
| strings, g_strdup_printf("%s=%s", config_items[i].name, value_string)); |
| } |
| g_ptr_array_add(strings, nullptr); |
| |
| return g_strjoinv(" ", reinterpret_cast<gchar**>(strings->pdata)); |
| } |