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GL: Added image format test.

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This commit is contained in:
Branimir Karadžić 2015-05-18 14:35:05 -07:00
parent e5a69d4b96
commit 6b8964acf7
1 changed files with 30 additions and 4 deletions
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34
src/renderer_gl.cpp
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@ -970,7 +970,7 @@ namespace bgfx { namespace gl
}
}
bool isTextureFormatValid(TextureFormat::Enum _format, bool srgb = false)
static bool isTextureFormatValid(TextureFormat::Enum _format, bool srgb = false)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = srgb
@ -985,7 +985,6 @@ namespace bgfx { namespace gl
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
initTestTexture(_format);
GLenum err = glGetError();
@ -996,7 +995,34 @@ namespace bgfx { namespace gl
return 0 == err;
}
bool isFramebufferFormatValid(TextureFormat::Enum _format, bool srgb = false)
static bool isImageFormatValid(TextureFormat::Enum _format)
{
if (GL_ZERO == s_imageFormat[_format])
{
return false;
}
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
initTestTexture(_format);
glBindImageTexture(0
, id
, 0
, GL_FALSE
, 0
, GL_READ_WRITE
, s_imageFormat[_format]
);
GLenum err = glGetError();
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
}
static bool isFramebufferFormatValid(TextureFormat::Enum _format, bool srgb = false)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = srgb
@ -1468,7 +1494,7 @@ namespace bgfx { namespace gl
;
supported |= computeSupport
&& GL_ZERO != s_imageFormat[ii]
&& isImageFormatValid(TextureFormat::Enum(ii) )
? BGFX_CAPS_FORMAT_TEXTURE_IMAGE
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;