From 99371f892e7b35739be01e63036b4355e0e4dfe7 Mon Sep 17 00:00:00 2001
From: Jonathan Goodman <geenz@geenzo.com>
Date: Tue, 28 Aug 2012 14:44:28 -0400
Subject: [PATCH] Added new bindTexture and unbindTexture API to LLGLSLShader.
Reviewed by davep.
---
indra/llrender/llglslshader.cpp | 52 +++++++++++++++++++++++++++++++++
indra/llrender/llglslshader.h | 9 +++++-
2 files changed, 60 insertions(+), 1 deletion(-)
diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp
index d345b6593ee..04878cabe2e 100644
--- a/indra/llrender/llglslshader.cpp
+++ b/indra/llrender/llglslshader.cpp
@@ -476,6 +476,58 @@ void LLGLSLShader::bindNoShader(void)
}
}
+S32 LLGLSLShader::bindTexture(const std::string &uniform, LLTexture *texture, LLTexUnit::eTextureType mode)
+{
+ S32 channel = 0;
+ channel = getUniformLocation(uniform);
+
+ return bindTexture(channel, texture, mode);
+}
+
+S32 LLGLSLShader::bindTexture(S32 uniform, LLTexture *texture, LLTexUnit::eTextureType mode)
+{
+ if (uniform < 0 || uniform >= (S32)mTexture.size())
+ {
+ UNIFORM_ERRS << "Uniform out of range: " << uniform << LL_ENDL;
+ return -1;
+ }
+
+ uniform = mTexture[uniform];
+
+ if (uniform > -1)
+ {
+ gGL.getTexUnit(uniform)->bind(texture, mode);
+ }
+
+ return uniform;
+}
+
+S32 LLGLSLShader::unbindTexture(const std::string &uniform, LLTexUnit::eTextureType mode)
+{
+ S32 channel = 0;
+ channel = getUniformLocation(uniform);
+
+ return unbindTexture(channel);
+}
+
+S32 LLGLSLShader::unbindTexture(S32 uniform, LLTexUnit::eTextureType mode)
+{
+ if (uniform < 0 || uniform >= (S32)mTexture.size())
+ {
+ UNIFORM_ERRS << "Uniform out of range: " << uniform << LL_ENDL;
+ return -1;
+ }
+
+ uniform = mTexture[uniform];
+
+ if (uniform > -1)
+ {
+ gGL.getTexUnit(uniform)->unbind(mode);
+ }
+
+ return uniform;
+}
+
S32 LLGLSLShader::enableTexture(S32 uniform, LLTexUnit::eTextureType mode)
{
if (uniform < 0 || uniform >= (S32)mTexture.size())
diff --git a/indra/llrender/llglslshader.h b/indra/llrender/llglslshader.h
index bee5d9adda8..185e6e7aeb8 100644
--- a/indra/llrender/llglslshader.h
+++ b/indra/llrender/llglslshader.h
@@ -130,7 +130,14 @@ class LLGLSLShader
//the corresponding channel will be active upon return
//returns channel texture is enabled in from [0-MAX)
S32 enableTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
- S32 disableTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
+ S32 disableTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
+
+ // bindTexture returns the texture unit we've bound the texture to.
+ // You can reuse the return value to unbind a texture when required.
+ S32 bindTexture(const std::string& uniform, LLTexture *texture, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
+ S32 bindTexture(S32 uniform, LLTexture *texture, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
+ S32 unbindTexture(const std::string& uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
+ S32 unbindTexture(S32 uniform, LLTexUnit::eTextureType mode = LLTexUnit::TT_TEXTURE);
BOOL link(BOOL suppress_errors = FALSE);
void bind();
--
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