Vulkan-Docs/doc/specs/vulkan/appendices/VK_NV_glsl_shader.txt
Jon Leech eaea7d2709 Change log for September 6, 2016 Vulkan 1.0.26 spec update:
* Bump API patch number and header version number to 26 for this update.

Github Issues:

  * Bring sample code in the +VK_KHR_surface+ and +VK_KHR_swapchain+
    extension summary appendices up to date, and note they will be replaced
    with pointers to the LunarG SDK examples in the future (public issue
    279).
  * Add a new <<fundamentals-commandsyntax-results-lifetime,Lifetime of
    Retrieved Results>> section specifying that ftext:vkGet* and
    ftext:VkEnumerate* results are invariant unless otherwise specified, and
    specify behavior for individual commands which are not invariant (public
    issue 280).
  * Remove conflicting definition of
    slink:VkDisplayPlaneCapabilitiesKHR::pname:maxSrcPosition and clean up
    language of the remaining definition (public issue 351).
  * Fix many minor spelling errors and add rules to the style guide to
    prevent recurrences (public issue 352).

Internal Issues:

  * Remove redundant descriptions of the etext:VK_USE_PLATFORM_* macros from
    the <<wsi,Window System Integration>> chapter in favor of the
    description in the <<boilerplate-wsi-header,Window System-Specific
    Header Control>> appendix (internal issue 6).
  * Replace misleading 'can: be destroyed when not X' with more correct
    'must: not be destroyed while X' in the
    <<fundamentals-objectmodel-lifetime,Object Lifetime>> section. Disallow
    destroying a pipeline layout while a command buffer using it is
    recording (internal issue 241).
  * Clarify that ename:VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT is valid for
    all images used as attachments in elink:VkImageUsageFlagBits and the
    slink:VkImageLayout validity language (internal issue 320).
  * Note that <<extended-functionality-layers,Layers>> may wrap object
    handles, but that this is a generally discouraged. A link to additional
    information in the documentation for layer authors is provided (issue
    398)
  * Replace the mustnot: and shouldnot: macros with equivalent must: not and
    should: not to get rid of non-English words while still highlighting
    normative language (internal issue 407).
  * Disallow creating multisampled images with
    ename:VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT in the slink:VkImageLayout
    validity language and the <<features-supported-sample-counts,Supported
    Sample Counts>> section (internal issue 445).
  * Fix typo so that flink:vkCmdDrawIndexedIndirect is defined in terms of
    flink:vkCmdDrawIndexed rather than flink:vkCmdDrawIndirect (internal
    issue 446).
  * Reorganize the per-extension information sections to all be in the
    <<extensions,Layers & Extensions>> appendix. Also fix a typo in
    +VK_IMG_filter_cubic+ which incorrectly identified it as a +KHR+
    extension (internal issue 461).

Other Issues:

  * Use asciidoc markup instead of latexmath to simplify diagrams in the
    <<features-formats-non-packed,byte mapping tables>> for color formats.
  * Fix a markup problem with the wildcarded enumerant names in a NOTE in
    the <<textures-texel-replacement,Texel Replacement>> section.
  * Fix missing attributes in the XML interface for
    elink:VkExternalMemoryHandleTypeFlagBitsNV and
    elink:VkExternalMemoryFeatureFlagBitsNV (KhronosGroup/Vulkan-Hpp issue
    #25)
  * Cleanup reference page builds so only core pages are built for releases.
2016-09-06 06:17:27 -07:00

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== VK_NV_glsl_shader
*Name String*:: VK_NV_glsl_shader
*Extension Type*:: Device extension
*Registered Extension Number*:: 13
*Status*:: Draft.
*Last Modified Date*:: 14/02/2016
*Revision*:: 1
*IP Status*:: No known IP claims.
*Dependencies*::
- This extension is written against version 1.0. of the Vulkan API.
*Contributors*::
- Piers Daniell, NVIDIA
*Contacts*::
- Piers Daniell (pdaniell 'at' nvidia.com)
This extension allows GLSL shaders written to the +GL_KHR_vulkan_glsl+
extension specification to be used instead of SPIR-V. The implementation
will automatically detect whether the shader is SPIR-V or GLSL and
compile it appropriatly.
=== New Object Types
=== New Enum Constants
* Extending elink:VkResult:
** ename:VK_ERROR_INVALID_SHADER_NV
=== New Enums
=== New Structures
=== New Functions
=== Issues
=== Examples
**Example 1**
Passing in GLSL code
[source,{basebackend@docbook:C++:cpp}]
----------------------------------------
char const vss[] =
"#version 450 core\n"
"layout(location = 0) in vec2 aVertex;\n"
"layout(location = 1) in vec4 aColor;\n"
"out vec4 vColor;\n"
"void main()\n"
"{\n"
" vColor = aColor;\n"
" gl_Position = vec4(aVertex, 0, 1);\n"
"}\n"
;
VkShaderModuleCreateInfo vertexShaderInfo = { VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO };
vertexShaderInfo.codeSize = sizeof vss;
vertexShaderInfo.pCode = vss;
VkShaderModule vertexShader;
vkCreateShaderModule(device, &vertexShaderInfo, 0, &vertexShader);
----------------------------------------
=== Version History
* Revision 1, 2016-02-14 (Piers Daniell)
- Initial draft