diff options
author | Eric Anholt <eric@anholt.net> | 2007-07-05 11:36:44 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2007-07-05 11:36:44 -0700 |
commit | 3cf20ddbfc9d3a1dad4c058050595c54589257d3 (patch) | |
tree | 57de53410bb0fb40979eed20d3c80d4c0ed68664 /src/mesa/main/texstate.c | |
parent | 2ac17c68e2d64260168a54a275e839775828f534 (diff) | |
parent | 4fe48b4e8568896cdbc822323aeec0a41c72ff2a (diff) |
Merge branch 'i915-unification' of git+ssh://people.freedesktop.org/~anholt/mesa into i915-unification
Diffstat (limited to 'src/mesa/main/texstate.c')
-rw-r--r-- | src/mesa/main/texstate.c | 77 |
1 files changed, 61 insertions, 16 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index d15af22b7d..c9f8a0656e 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5.3 + * Version: 7.1 * * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * @@ -1141,26 +1141,29 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) /* Texture Parameters */ /**********************************************************************/ +/** + * Check if a coordinate wrap mode is supported for the texture target. + * \return GL_TRUE if legal, GL_FALSE otherwise + */ static GLboolean -_mesa_validate_texture_wrap_mode(GLcontext * ctx, - GLenum target, GLenum eparam) +validate_texture_wrap_mode(GLcontext * ctx, GLenum target, GLenum wrap) { const struct gl_extensions * const e = & ctx->Extensions; - if (eparam == GL_CLAMP || eparam == GL_CLAMP_TO_EDGE || - (eparam == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { + if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || + (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { /* any texture target */ return GL_TRUE; } else if (target != GL_TEXTURE_RECTANGLE_NV && - (eparam == GL_REPEAT || - (eparam == GL_MIRRORED_REPEAT && + (wrap == GL_REPEAT || + (wrap == GL_MIRRORED_REPEAT && e->ARB_texture_mirrored_repeat) || - (eparam == GL_MIRROR_CLAMP_EXT && + (wrap == GL_MIRROR_CLAMP_EXT && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || - (eparam == GL_MIRROR_CLAMP_TO_EDGE_EXT && + (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || - (eparam == GL_MIRROR_CLAMP_TO_BORDER_EXT && + (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT && (e->EXT_texture_mirror_clamp)))) { /* non-rectangle texture */ return GL_TRUE; @@ -1283,7 +1286,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) case GL_TEXTURE_WRAP_S: if (texObj->WrapS == eparam) return; - if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapS = eparam; } @@ -1294,7 +1297,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) case GL_TEXTURE_WRAP_T: if (texObj->WrapT == eparam) return; - if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapT = eparam; } @@ -1305,7 +1308,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) case GL_TEXTURE_WRAP_R: if (texObj->WrapR == eparam) return; - if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapR = eparam; } @@ -1515,7 +1518,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) return; } - texObj->Complete = GL_FALSE; + texObj->_Complete = GL_FALSE; if (ctx->Driver.TexParameter) { (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params ); @@ -2793,6 +2796,47 @@ update_texture_matrices( GLcontext *ctx ) /** + * Update texture object's _Function field. We need to do this + * whenever any of the texture object's shadow-related fields change + * or when we start/stop using a fragment program. + * + * This function could be expanded someday to update additional per-object + * fields that depend on assorted state changes. + */ +static void +update_texture_compare_function(GLcontext *ctx, + struct gl_texture_object *tObj) +{ + /* XXX temporarily disable this test since it breaks the GLSL + * shadow2D(), etc. functions. + */ + if (0 /*ctx->FragmentProgram._Current*/) { + /* Texel/coordinate comparison is ignored for programs. + * See GL_ARB_fragment_program/shader spec for details. + */ + tObj->_Function = GL_NONE; + } + else if (tObj->CompareFlag) { + /* GL_SGIX_shadow */ + if (tObj->CompareOperator == GL_TEXTURE_LEQUAL_R_SGIX) { + tObj->_Function = GL_LEQUAL; + } + else { + ASSERT(tObj->CompareOperator == GL_TEXTURE_GEQUAL_R_SGIX); + tObj->_Function = GL_GEQUAL; + } + } + else if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB) { + /* GL_ARB_shadow */ + tObj->_Function = tObj->CompareFunc; + } + else { + tObj->_Function = GL_NONE; /* pass depth through as grayscale */ + } +} + + +/** * Helper function for determining which texture object (1D, 2D, cube, etc) * should actually be used. */ @@ -2802,12 +2846,13 @@ texture_override(GLcontext *ctx, struct gl_texture_object *texObj, GLuint textureBit) { if (!texUnit->_ReallyEnabled && (enableBits & textureBit)) { - if (!texObj->Complete) { + if (!texObj->_Complete) { _mesa_test_texobj_completeness(ctx, texObj); } - if (texObj->Complete) { + if (texObj->_Complete) { texUnit->_ReallyEnabled = textureBit; texUnit->_Current = texObj; + update_texture_compare_function(ctx, texObj); } } } |