From f6c2d1f94ffa8f87b22ed1ff5c465d0e9aa1489e Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Mon, 4 Jan 2010 19:53:28 -0700 Subject: mesa: make texture BorderColor a union of float/int/uint When we have integer-valued texture formats, the texture border color must also store integer and uint values. With GL 3.0, the new glTexParameterIiv() and glTexParameterIuiv() functions can set the border color to int or uint values. --- src/mesa/main/attrib.c | 2 +- src/mesa/main/mtypes.h | 6 +++++- src/mesa/main/texobj.c | 8 ++++---- src/mesa/main/texparam.c | 21 +++++++++------------ 4 files changed, 19 insertions(+), 18 deletions(-) (limited to 'src/mesa/main') diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c index fb15a5ba47..0641b98b3b 100644 --- a/src/mesa/main/attrib.c +++ b/src/mesa/main/attrib.c @@ -835,7 +835,7 @@ pop_texture_group(GLcontext *ctx, struct texture_state *texstate) _mesa_BindTexture(target, obj->Name); - _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, obj->BorderColor); + _mesa_TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, obj->BorderColor.f); _mesa_TexParameterf(target, GL_TEXTURE_PRIORITY, obj->Priority); _mesa_TexParameteri(target, GL_TEXTURE_WRAP_S, obj->WrapS); _mesa_TexParameteri(target, GL_TEXTURE_WRAP_T, obj->WrapT); diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index a7f70a1875..01ad246504 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1217,7 +1217,11 @@ struct gl_texture_object GLuint Name; /**< the user-visible texture object ID */ GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ GLfloat Priority; /**< in [0,1] */ - GLfloat BorderColor[4]; /**< unclamped */ + union { + GLfloat f[4]; + GLuint ui[4]; + GLint i[4]; + } BorderColor; /**< Interpreted according to texture format */ GLenum WrapS; /**< S-axis texture image wrap mode */ GLenum WrapT; /**< T-axis texture image wrap mode */ GLenum WrapR; /**< R-axis texture image wrap mode */ diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c index 09fe7b85ba..7f0a246025 100644 --- a/src/mesa/main/texobj.c +++ b/src/mesa/main/texobj.c @@ -228,10 +228,10 @@ _mesa_copy_texture_object( struct gl_texture_object *dest, dest->Target = src->Target; dest->Name = src->Name; dest->Priority = src->Priority; - dest->BorderColor[0] = src->BorderColor[0]; - dest->BorderColor[1] = src->BorderColor[1]; - dest->BorderColor[2] = src->BorderColor[2]; - dest->BorderColor[3] = src->BorderColor[3]; + dest->BorderColor.f[0] = src->BorderColor.f[0]; + dest->BorderColor.f[1] = src->BorderColor.f[1]; + dest->BorderColor.f[2] = src->BorderColor.f[2]; + dest->BorderColor.f[3] = src->BorderColor.f[3]; dest->WrapS = src->WrapS; dest->WrapT = src->WrapT; dest->WrapR = src->WrapR; diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c index 73db7d713c..474b950def 100644 --- a/src/mesa/main/texparam.c +++ b/src/mesa/main/texparam.c @@ -511,10 +511,7 @@ set_tex_parameterf(GLcontext *ctx, case GL_TEXTURE_BORDER_COLOR: flush(ctx, texObj); - texObj->BorderColor[RCOMP] = params[0]; - texObj->BorderColor[GCOMP] = params[1]; - texObj->BorderColor[BCOMP] = params[2]; - texObj->BorderColor[ACOMP] = params[3]; + COPY_4V(texObj->BorderColor.f, params); return GL_TRUE; default: @@ -1008,10 +1005,10 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) *params = ENUM_TO_FLOAT(obj->WrapR); break; case GL_TEXTURE_BORDER_COLOR: - params[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); - params[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); - params[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); - params[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); + params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F); + params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F); + params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F); + params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F); break; case GL_TEXTURE_RESIDENT: { @@ -1166,10 +1163,10 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) case GL_TEXTURE_BORDER_COLOR: { GLfloat b[4]; - b[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); - b[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); - b[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); - b[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); + b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F); + b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F); + b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F); + b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F); params[0] = FLOAT_TO_INT(b[0]); params[1] = FLOAT_TO_INT(b[1]); params[2] = FLOAT_TO_INT(b[2]); -- cgit v1.2.3