gpu/GLES2/extensions/CHROMIUM/CHROMIUM_gpu_memory_buffer_image.txt - Issue 1974163003: Expose GpuMemoryBufferId through glGetImageivCHROMIUM.

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Issue 1974163003: Expose GpuMemoryBufferId through glGetImageivCHROMIUM. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Fix test. Created 4 years, 7 months ago

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1 Name	1 Name

2	2

3 CHROMIUM_gpu_memory_buffer_image	3 CHROMIUM_gpu_memory_buffer_image

4	4

5 Name Strings	5 Name Strings

6	6

7 GL_CHROMIUM_gpu_memory_buffer_image	7 GL_CHROMIUM_gpu_memory_buffer_image

8	8

9 Version	9 Version

10	10

(...skipping 13 matching lines...) Expand all Loading...
24 Issues	24 Issues

25	25

26 None	26 None

27	27

28 New Tokens	28 New Tokens

29	29

30 Accepted by the <usage> parameter of CreateGpuMemoryBufferImageCHROMIUM:	30 Accepted by the <usage> parameter of CreateGpuMemoryBufferImageCHROMIUM:

31	31

32 READ_WRITE_CHROMIUM 0x78F2	32 READ_WRITE_CHROMIUM 0x78F2

33	33

	34 Accepted by the <param> parameter of GetImageivCHROMIUM:

	35

	36 GL_GPU_MEMORY_BUFFER_ID 0x78FD

	37

34 New Procedures and Functions	38 New Procedures and Functions

35	39

36 GLuint CreateGpuMemoryBufferImageCHROMIUM(GLsizei width,	40 GLuint CreateGpuMemoryBufferImageCHROMIUM(GLsizei width,

37 GLsizei height,	41 GLsizei height,

38 GLenum internalformat,	42 GLenum internalformat,

39 GLenum usage)	43 GLenum usage)

40	44

41 Create a GpuMemoryBuffer backed image with width equal to <width>	45 Create a GpuMemoryBuffer backed image with width equal to <width>

42 and height equal to <height> and format equal to <internalformat>.	46 and height equal to <height> and format equal to <internalformat>.

43	47

44 Returns a unique identifier for the image that could be used in	48 Returns a unique identifier for the image that could be used in

45 subsequent operations.	49 subsequent operations.

46	50

47 INVALID_VALUE is generated if <width> or <height> is nonpositive.	51 INVALID_VALUE is generated if <width> or <height> is nonpositive.

48	52

49 INVALID_ENUM is generated if <internalformat> is not one of	53 INVALID_ENUM is generated if <internalformat> is not one of

50 RGB or RGBA.	54 RGB or RGBA.

51	55

52 INVALID_ENUM is generated if <usage> is not READ_WRTIE_CHROMIUM.	56 INVALID_ENUM is generated if <usage> is not READ_WRTIE_CHROMIUM.

53	57

54 On OS X, driver bugs prevent the usage of memory buffers with RGB internal	58 On OS X, driver bugs prevent the usage of memory buffers with RGB internal

55 format. As a workaround, the created GpuMemoryBuffer will always have	59 format. As a workaround, the created GpuMemoryBuffer will always have

56 internal format RGBA. The caller is responsible for handling this	60 internal format RGBA. The caller is responsible for handling this

57 appropriately. The only support provided by this extension is that calls	61 appropriately. The only support provided by this extension is that calls

58 that require parameter validation (such as copyTexImage2D and	62 that require parameter validation (such as copyTexImage2D and

59 copyTexSubImage2D) will perform paramter validation as if the internal	63 copyTexSubImage2D) will perform paramter validation as if the internal

60 format were RGB.	64 format were RGB.

61	65

	66 void GetImageivCHROMIUM(GLuint image_id, GLenum param, GLint* data)

	67

	68 When the parameter GL_GPU_MEMORY_BUFFER_ID is passed as <param>, returns the

	69 id of the GpuMemoryBuffer associated with <image_id>. If the image does not

	70 exist, or is not associated with a GpuMemoryBuffer, returns -1.

	71

62 Errors	72 Errors

63	73

64 None.	74 None.

65	75

66 New State	76 New State

67	77

68 None.	78 None.

69	79

70 Revision History	80 Revision History

71	81

72 9/29/2014 Documented the extension.	82 9/29/2014 Documented the extension.

73 4/12/2016 Added details of OS X RGB workaround.	83 4/12/2016 Added details of OS X RGB workaround.

	84 5/25/2016 Added the GetImageivCHROMIUM function.

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