2006-11-25 11:49:17 -07:00
|
|
|
Name
|
|
|
|
|
|
|
|
|
|
MESA_shader_debug
|
|
|
|
|
|
|
|
|
|
Name Strings
|
|
|
|
|
|
|
|
|
|
GL_MESA_shader_debug
|
|
|
|
|
|
|
|
|
|
Contact
|
|
|
|
|
|
|
|
|
|
Brian Paul (brian.paul 'at' tungstengraphics.com)
|
|
|
|
|
Michal Krol (mjkrol 'at' gmail.com)
|
|
|
|
|
|
|
|
|
|
Status
|
|
|
|
|
|
2010-05-22 14:05:42 -06:00
|
|
|
Obsolete.
|
2006-11-25 11:49:17 -07:00
|
|
|
|
|
|
|
|
Version
|
|
|
|
|
|
|
|
|
|
Last Modified Date: July 30, 2006
|
|
|
|
|
Author Revision: 0.2
|
|
|
|
|
|
|
|
|
|
Number
|
|
|
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
|
Dependencies
|
|
|
|
|
|
|
|
|
|
OpenGL 1.0 is required.
|
|
|
|
|
|
|
|
|
|
The ARB_shader_objects extension is required.
|
|
|
|
|
|
|
|
|
|
The ARB_shading_language_100 extension is required.
|
|
|
|
|
|
|
|
|
|
The extension is written against the OpenGL 1.5 specification.
|
|
|
|
|
|
|
|
|
|
The extension is written against the OpenGL Shading Language 1.10
|
|
|
|
|
Specification.
|
|
|
|
|
|
|
|
|
|
Overview
|
|
|
|
|
|
|
|
|
|
This extension introduces a debug object that can be attached to
|
|
|
|
|
a program object to enable debugging. Vertex and/or fragment shader,
|
|
|
|
|
during execution, issue diagnostic function calls that are logged
|
|
|
|
|
to the debug object's log. A separate debug log for each shader type
|
|
|
|
|
is maintained. A debug object can be attached, detached and queried
|
|
|
|
|
at any time outside the Begin/End pair. Multiple debug objects can
|
|
|
|
|
be attached to a single program object.
|
|
|
|
|
|
|
|
|
|
IP Status
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Issues
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
New Procedures and Functions
|
|
|
|
|
|
|
|
|
|
handleARB CreateDebugObjectMESA(void)
|
|
|
|
|
void ClearDebugLogMESA(handleARB obj, enum logType, enum shaderType)
|
|
|
|
|
void GetDebugLogMESA(handleARB obj, enum logType, enum shaderType,
|
|
|
|
|
sizei maxLength, sizei *length,
|
|
|
|
|
charARB *debugLog)
|
|
|
|
|
sizei GetDebugLogLengthMESA(handleARB obj, enum logType,
|
|
|
|
|
enum shaderType)
|
|
|
|
|
|
|
|
|
|
New Types
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
New Tokens
|
|
|
|
|
|
|
|
|
|
Returned by the <params> parameter of GetObjectParameter{fi}vARB:
|
|
|
|
|
|
|
|
|
|
DEBUG_OBJECT_MESA 0x8759
|
|
|
|
|
|
|
|
|
|
Accepted by the <logType> argument of ClearDebugLogMESA,
|
|
|
|
|
GetDebugLogLengthMESA and GetDebugLogMESA:
|
|
|
|
|
|
|
|
|
|
DEBUG_PRINT_MESA 0x875A
|
|
|
|
|
DEBUG_ASSERT_MESA 0x875B
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 2 of the OpenGL 1.5 Specification
|
|
|
|
|
(OpenGL Operation)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 3 of the OpenGL 1.5 Specification (Rasterization)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 4 of the OpenGL 1.5 Specification (Per-Fragment
|
|
|
|
|
Operations and the Frame Buffer)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 5 of the OpenGL 1.5 Specification
|
|
|
|
|
(Special Functions)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 6 of the OpenGL 1.5 Specification (State and State
|
|
|
|
|
Requests)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Appendix A of the OpenGL 1.5 Specification (Invariance)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 1 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Introduction)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 2 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Overview of OpenGL Shading)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 3 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Basics)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 4 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Variables and Types)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 5 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Operators and Expressions)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 6 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Statements and Structure)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 7 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Built-in Variables)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 8 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Built-in Functions)
|
|
|
|
|
|
|
|
|
|
Add a new section 8.10 "Debug Functions":
|
|
|
|
|
|
|
|
|
|
Debug functions are available to both fragment and vertex shaders.
|
|
|
|
|
They are used to track the execution of a shader by logging
|
|
|
|
|
passed-in arguments to the debug object's log. Those values can be
|
|
|
|
|
retrieved by the application for inspection after shader execution
|
|
|
|
|
is complete.
|
|
|
|
|
|
|
|
|
|
The text, if any, produced by any of these functions is appended
|
|
|
|
|
to each debug object that is attached to the program object.
|
|
|
|
|
There are different debug log types
|
|
|
|
|
|
|
|
|
|
Add a new section 8.10.1 "Print Function":
|
|
|
|
|
|
|
|
|
|
The following printMESA prototypes are available.
|
|
|
|
|
|
|
|
|
|
void printMESA(const float value)
|
|
|
|
|
void printMESA(const int value)
|
|
|
|
|
void printMESA(const bool value)
|
|
|
|
|
void printMESA(const vec2 value)
|
|
|
|
|
void printMESA(const vec3 value)
|
|
|
|
|
void printMESA(const vec4 value)
|
|
|
|
|
void printMESA(const ivec2 value)
|
|
|
|
|
void printMESA(const ivec3 value)
|
|
|
|
|
void printMESA(const ivec4 value)
|
|
|
|
|
void printMESA(const bvec2 value)
|
|
|
|
|
void printMESA(const bvec3 value)
|
|
|
|
|
void printMESA(const bvec4 value)
|
|
|
|
|
void printMESA(const mat2 value)
|
|
|
|
|
void printMESA(const mat3 value)
|
|
|
|
|
void printMESA(const mat4 value)
|
|
|
|
|
void printMESA(const sampler1D value)
|
|
|
|
|
void printMESA(const sampler2D value)
|
|
|
|
|
void printMESA(const sampler3D value)
|
|
|
|
|
void printMESA(const samplerCube value)
|
|
|
|
|
void printMESA(const sampler1DShadow value)
|
|
|
|
|
void printMESA(const sampler2DShadow value)
|
|
|
|
|
|
|
|
|
|
The printMESA function writes the argument <value> to the "debug
|
|
|
|
|
print log" (XXX DEBUG_PRINT_MESA?). Each component is written in
|
|
|
|
|
text format (XXX format!) and is delimited by a white space (XXX 1
|
|
|
|
|
or more?).
|
|
|
|
|
|
|
|
|
|
Add a new section 8.10.2 "Assert Function":
|
|
|
|
|
|
|
|
|
|
The following assertMESA prototypes are available.
|
|
|
|
|
|
|
|
|
|
void assertMESA(const bool condition)
|
|
|
|
|
void assertMESA(const bool condition, const int cookie)
|
|
|
|
|
void assertMESA(const bool condition, const int cookie,
|
|
|
|
|
const int file, const int line)
|
|
|
|
|
|
|
|
|
|
The assertMESA function checks if the argument <condition> is
|
|
|
|
|
true or false. If it is true, nothing happens. If it is false,
|
|
|
|
|
a diagnostic message is written to the "debug assert log".
|
|
|
|
|
The message contains the argument <file>, <line>, <cookie> and
|
|
|
|
|
implementation dependent double-quoted string, each of this
|
|
|
|
|
delimited by a white space. If the argument <cookie> is not present,
|
|
|
|
|
it is meant as if it was of value 0. If the arguments <file> and
|
|
|
|
|
<line> are not present, they are meant as if they were of values
|
|
|
|
|
__FILE__ and __LINE__, respectively. The following three calls
|
|
|
|
|
produce the same output, assuming they were issued from the same
|
|
|
|
|
file and line.
|
|
|
|
|
|
|
|
|
|
assertMESA (false);
|
|
|
|
|
assertMESA (false, 0);
|
|
|
|
|
assertMESA (false, 0, __FILE__, __LINE__);
|
|
|
|
|
|
|
|
|
|
The diagnostic message examples follow.
|
|
|
|
|
|
|
|
|
|
1 89 0 ""
|
|
|
|
|
1 45 333 "all (lessThanEqual (fragColor, vec4 (1.0)))"
|
|
|
|
|
1 66 1 "assertion failed in file 1, line 66, cookie 1"
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 9 of the OpenGL Shading Language 1.10 Specification
|
|
|
|
|
(Shading Language Grammar)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to Chapter 10 of the OpenGL Shading Language 1.10
|
|
|
|
|
Specification (Issues)
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Additions to the AGL/EGL/GLX/WGL Specifications
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
GLX Protocol
|
|
|
|
|
|
|
|
|
|
None
|
|
|
|
|
|
|
|
|
|
Errors
|
|
|
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
|
New State
|
|
|
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
|
New Implementation Dependent State
|
|
|
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
|
Sample Code
|
|
|
|
|
|
|
|
|
|
TBD
|
|
|
|
|
|
|
|
|
|
Revision History
|
|
|
|
|
|
|
|
|
|
29 May 2006
|
|
|
|
|
Initial draft. (Michal Krol)
|
|
|
|
|
30 July 2006
|
|
|
|
|
Add Overview, New Procedures and Functions, New Tokens sections.
|
|
|
|
|
Add sections 8.10.1, 8.10.2 to GLSL spec.
|
