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mesa: minor simplification in enable_texture(), updated comments

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This commit is contained in:
Brian Paul 2009-05-05 16:17:55 -06:00
parent b3fc832ac7
commit c0d3761c16
1 changed files with 5 additions and 3 deletions
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8
src/mesa/main/enable.c
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@ -222,14 +222,16 @@ get_texcoord_unit(GLcontext *ctx)
/**
* Helper function to enable or disable a texture target.
* \param bit one of the TEXTURE_x_BIT values
* \return GL_TRUE if state is changing or GL_FALSE if no change
*/
static GLboolean
enable_texture(GLcontext *ctx, GLboolean state, GLbitfield bit)
enable_texture(GLcontext *ctx, GLboolean state, GLbitfield texBit)
{
const GLuint curr = ctx->Texture.CurrentUnit;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
const GLuint newenabled = (!state)
? (texUnit->Enabled & ~bit) : (texUnit->Enabled | bit);
const GLbitfield newenabled = state
? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit);
if (!ctx->DrawBuffer->Visual.rgbMode || texUnit->Enabled == newenabled)
return GL_FALSE;