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"""Debug utilities for EGL operations"""
from OpenGL.EGL import *
import itertools
def eglErrorName(value):
"""Returns error constant if known, otherwise returns value"""
return KNOWN_ERRORS.get(value, value)
KNOWN_ERRORS = {
EGL_SUCCESS: EGL_SUCCESS,
EGL_NOT_INITIALIZED: EGL_NOT_INITIALIZED,
EGL_BAD_ACCESS: EGL_BAD_ACCESS,
EGL_BAD_ALLOC: EGL_BAD_ALLOC,
EGL_BAD_ATTRIBUTE: EGL_BAD_ATTRIBUTE,
EGL_BAD_CONTEXT: EGL_BAD_CONTEXT,
EGL_BAD_CONFIG: EGL_BAD_CONFIG,
EGL_BAD_CURRENT_SURFACE: EGL_BAD_CURRENT_SURFACE,
EGL_BAD_DISPLAY: EGL_BAD_DISPLAY,
EGL_BAD_SURFACE: EGL_BAD_SURFACE,
EGL_BAD_MATCH: EGL_BAD_MATCH,
EGL_BAD_PARAMETER: EGL_BAD_PARAMETER,
EGL_BAD_NATIVE_PIXMAP: EGL_BAD_NATIVE_PIXMAP,
EGL_BAD_NATIVE_WINDOW: EGL_BAD_NATIVE_WINDOW,
EGL_CONTEXT_LOST: EGL_CONTEXT_LOST,
}
def write_ppm(buf, filename):
"""Write height * width * 3-component buffer as ppm to filename
This lets us write a simple image format without
using any libraries that can be viewed on most
linux workstations.
"""
with open(filename, "w") as f:
h, w, c = buf.shape
print("P3", file=f)
print("# ascii ppm file created by pyopengl", file=f)
print("%i %i" % (w, h), file=f)
print("255", file=f)
for y in range(h - 1, -1, -1):
for x in range(w):
pixel = buf[y, x]
l = " %3d %3d %3d" % (pixel[0], pixel[1], pixel[2])
f.write(l)
f.write("\n")
def debug_config(display, config):
"""Get debug display for the given configuration"""
result = {}
value = EGLint()
for attr in CONFIG_ATTRS:
if not eglGetConfigAttrib(display, config, attr, value):
log.warning("Failed to get attribute %s from config", attr)
continue
if attr in BITMASK_FIELDS:
attr_value = {}
for subattr in BITMASK_FIELDS[attr]:
if value.value & subattr:
attr_value[subattr.name] = True
else:
attr_value = value.value
result[attr.name] = attr_value
return result
def debug_configs(display, configs=None, max_count=256):
"""Present a formatted list of configs for the display"""
if configs is None:
configs = (EGLConfig * max_count)()
num_configs = EGLint()
eglGetConfigs(display, configs, max_count, num_configs)
if not num_configs.value:
return []
configs = configs[: num_configs.value]
debug_configs = [debug_config(display, cfg) for cfg in configs]
return debug_configs
SURFACE_TYPE_BITS = [
EGL_MULTISAMPLE_RESOLVE_BOX_BIT,
EGL_PBUFFER_BIT,
EGL_PIXMAP_BIT,
EGL_SWAP_BEHAVIOR_PRESERVED_BIT,
EGL_VG_ALPHA_FORMAT_PRE_BIT,
EGL_VG_COLORSPACE_LINEAR_BIT,
EGL_WINDOW_BIT,
]
RENDERABLE_TYPE_BITS = [
EGL_OPENGL_BIT,
EGL_OPENGL_ES_BIT,
EGL_OPENGL_ES2_BIT,
EGL_OPENGL_ES3_BIT,
EGL_OPENVG_BIT,
]
CAVEAT_BITS = [
EGL_NONE,
EGL_SLOW_CONFIG,
EGL_NON_CONFORMANT_CONFIG,
]
TRANSPARENT_BITS = [
EGL_NONE,
EGL_TRANSPARENT_RGB,
]
CONFIG_ATTRS = [
EGL_CONFIG_ID,
EGL_RED_SIZE,
EGL_GREEN_SIZE,
EGL_BLUE_SIZE,
EGL_DEPTH_SIZE,
EGL_ALPHA_SIZE,
EGL_ALPHA_MASK_SIZE,
EGL_BUFFER_SIZE,
EGL_STENCIL_SIZE,
EGL_BIND_TO_TEXTURE_RGB,
EGL_BIND_TO_TEXTURE_RGBA,
EGL_COLOR_BUFFER_TYPE,
EGL_CONFIG_CAVEAT,
EGL_CONFORMANT,
EGL_LEVEL,
EGL_LUMINANCE_SIZE,
EGL_MAX_PBUFFER_WIDTH,
EGL_MAX_PBUFFER_HEIGHT,
EGL_MAX_PBUFFER_PIXELS,
EGL_MIN_SWAP_INTERVAL,
EGL_MAX_SWAP_INTERVAL,
EGL_NATIVE_RENDERABLE,
EGL_NATIVE_VISUAL_ID,
EGL_NATIVE_VISUAL_TYPE,
EGL_RENDERABLE_TYPE,
EGL_SAMPLE_BUFFERS,
EGL_SAMPLES,
EGL_SURFACE_TYPE,
EGL_TRANSPARENT_TYPE,
EGL_TRANSPARENT_RED_VALUE,
EGL_TRANSPARENT_GREEN_VALUE,
EGL_TRANSPARENT_BLUE_VALUE,
]
BITMASK_FIELDS = dict(
[
(EGL_SURFACE_TYPE, SURFACE_TYPE_BITS),
(EGL_RENDERABLE_TYPE, RENDERABLE_TYPE_BITS),
(EGL_CONFORMANT, RENDERABLE_TYPE_BITS),
(EGL_CONFIG_CAVEAT, CAVEAT_BITS),
(EGL_TRANSPARENT_TYPE, TRANSPARENT_BITS),
]
)
def bit_renderer(bit):
def render(value):
if bit.name in value:
return " Y"
else:
return " ."
return render
CONFIG_FORMAT = [
(EGL_CONFIG_ID, "0x%x", "id", "cfg"),
(EGL_BUFFER_SIZE, "%i", "sz", "bf"),
(EGL_LEVEL, "%i", "l", "lv"),
(EGL_RED_SIZE, "%i", "r", "cbuf"),
(EGL_GREEN_SIZE, "%i", "g", "cbuf"),
(EGL_BLUE_SIZE, "%i", "b", "cbuf"),
(EGL_ALPHA_SIZE, "%i", "a", "cbuf"),
(EGL_DEPTH_SIZE, "%i", "th", "dp"),
(EGL_STENCIL_SIZE, "%i", "t", "s"),
(EGL_SAMPLES, "%i", "ns", "mult"),
(EGL_SAMPLE_BUFFERS, "%i", "bu", "mult"),
(EGL_NATIVE_VISUAL_ID, "0x%x", "id", "visual"),
(EGL_RENDERABLE_TYPE, bit_renderer(EGL_OPENGL_BIT), "gl", "render"),
(EGL_RENDERABLE_TYPE, bit_renderer(EGL_OPENGL_ES_BIT), "es", "render"),
(EGL_RENDERABLE_TYPE, bit_renderer(EGL_OPENGL_ES2_BIT), "e2", "render"),
(EGL_RENDERABLE_TYPE, bit_renderer(EGL_OPENGL_ES3_BIT), "e3", "render"),
(EGL_RENDERABLE_TYPE, bit_renderer(EGL_OPENVG_BIT), "vg", "render"),
(EGL_SURFACE_TYPE, bit_renderer(EGL_WINDOW_BIT), "wn", "surface"),
(EGL_SURFACE_TYPE, bit_renderer(EGL_PBUFFER_BIT), "pb", "surface"),
(EGL_SURFACE_TYPE, bit_renderer(EGL_PIXMAP_BIT), "px", "surface"),
]
def format_debug_configs(debug_configs, formats=CONFIG_FORMAT):
"""Format config for compact debugging display
Produces a config summary display for a set of
debug_configs as a text-mode table.
Uses `formats` (default `CONFIG_FORMAT`) to determine
which fields are extracted and how they are formatted
along with the column/subcolum set to be rendered in
the overall header.
returns formatted ASCII table for display in debug
logs or utilities
"""
columns = []
for (key, format, subcol, col) in formats:
column = []
max_width = 0
for row in debug_configs:
if isinstance(row, EGLConfig):
raise TypeError(row, "Call debug_config(display,config)")
try:
value = row[key.name]
except KeyError:
formatted = "_"
else:
if isinstance(format, str):
formatted = format % (value)
else:
formatted = format(value)
max_width = max((len(formatted), max_width))
column.append(formatted)
columns.append(
{
"rows": column,
"key": key,
"format": format,
"subcol": subcol,
"col": col,
"width": max_width,
}
)
headers = []
subheaders = []
rows = [headers, subheaders]
last_column = None
last_column_width = 0
for header, subcols in itertools.groupby(columns, lambda x: x["col"]):
subcols = list(subcols)
width = sum([col["width"] for col in subcols]) + (len(subcols) - 1)
headers.append(header.center(width, ".")[:width])
for column in columns:
subheaders.append(column["subcol"].rjust(column["width"])[: column["width"]])
rows.extend(
zip(*[[v.rjust(col["width"], " ") for v in col["rows"]] for col in columns])
)
return "\n".join([" ".join(row) for row in rows])
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