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GL: Anisotropic texture.

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bkaradzic
2012-12-09 19:20:32 -08:00
parent 4fd2a47d83
commit d16b930a39
3 changed files with 27 additions and 1 deletions
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16
src/renderer_gl.cpp
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@@ -77,7 +77,8 @@ namespace bgfx
struct RendererContext
{
RendererContext()
: m_dxtSupport(false)
: m_maxAnisotropy(0.0f)
, m_dxtSupport(false)
, m_programBinarySupport(false)
, m_flip(false)
, m_postSwapBuffers(NULL)
@@ -530,6 +531,7 @@ namespace bgfx
TextVideoMem m_textVideoMem;
Resolution m_resolution;
float m_maxAnisotropy;
bool m_dxtSupport;
bool m_programBinarySupport;
bool m_flip;
@@ -615,6 +617,7 @@ namespace bgfx
{
enum Enum
{
EXT_texture_filter_anisotropic,
EXT_texture_format_BGRA8888,
EXT_texture_compression_s3tc,
EXT_texture_compression_dxt1,
@@ -659,6 +662,7 @@ namespace bgfx
static Extension s_extension[Extension::Count] =
{
{ "GL_EXT_texture_filter_anisotropic", false, true },
// Nvidia BGRA on Linux bug:
// https://groups.google.com/a/chromium.org/forum/?fromgroups#!topic/chromium-reviews/yFfbUdyeUCQ
{ "GL_EXT_texture_format_BGRA8888", false, !BX_PLATFORM_LINUX },
@@ -1567,6 +1571,11 @@ namespace bgfx
GL_CHECK(glTexParameteri(m_target, GL_TEXTURE_MIN_FILTER, s_textureFilter[(_flags&BGFX_TEXTURE_MIN_MASK)>>BGFX_TEXTURE_MIN_SHIFT]) );
GL_CHECK(glTexParameteri(m_target, GL_TEXTURE_MAG_FILTER, s_textureFilter[(_flags&BGFX_TEXTURE_MAG_MASK)>>BGFX_TEXTURE_MAG_SHIFT]) );
GL_CHECK(glTexParameteri(m_target, GL_TEXTURE_MIN_FILTER, 1 < numMips ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR) );
if (0 != (_flags & (BGFX_TEXTURE_MIN_ANISOTROPIC|BGFX_TEXTURE_MAG_ANISOTROPIC) )
&& 0.0f < s_renderCtx.m_maxAnisotropy)
{
glTexParameterf(m_target, GL_TEXTURE_MAX_ANISOTROPY_EXT, s_renderCtx.m_maxAnisotropy);
}
GL_CHECK(glBindTexture(m_target, 0) );
}
@@ -2086,6 +2095,11 @@ namespace bgfx
|| s_extension[Extension::ARB_get_program_binary].m_supported
|| s_extension[Extension::OES_get_program_binary].m_supported
;
if (s_extension[Extension::EXT_texture_filter_anisotropic].m_supported)
{
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &s_renderCtx.m_maxAnisotropy);
}
}
}