From 7cd970786d72a68b735f33904bdded6c8aebdf33 Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 21 Aug 2012 07:54:32 +0200 Subject: xserver xkeyboard-config mesa pixman git update 21 Aug 2012 --- mesalib/src/mesa/main/texparam.c | 240 +++++++++++++++++++++++++++++++++------ 1 file changed, 203 insertions(+), 37 deletions(-) (limited to 'mesalib/src/mesa/main/texparam.c') diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c index 690fd6c25..41b9f97bf 100644 --- a/mesalib/src/mesa/main/texparam.c +++ b/mesalib/src/mesa/main/texparam.c @@ -871,50 +871,67 @@ _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params) } -void GLAPIENTRY -_mesa_GetTexLevelParameterfv( GLenum target, GLint level, - GLenum pname, GLfloat *params ) +static GLboolean +legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target) { - GLint iparam; - _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); - *params = (GLfloat) iparam; + switch (target) { + case GL_TEXTURE_1D: + case GL_PROXY_TEXTURE_1D: + case GL_TEXTURE_2D: + case GL_PROXY_TEXTURE_2D: + case GL_TEXTURE_3D: + case GL_PROXY_TEXTURE_3D: + return GL_TRUE; + case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: + case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: + case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: + case GL_PROXY_TEXTURE_CUBE_MAP_ARB: + return ctx->Extensions.ARB_texture_cube_map; + case GL_TEXTURE_RECTANGLE_NV: + case GL_PROXY_TEXTURE_RECTANGLE_NV: + return ctx->Extensions.NV_texture_rectangle; + case GL_TEXTURE_1D_ARRAY_EXT: + case GL_PROXY_TEXTURE_1D_ARRAY_EXT: + case GL_TEXTURE_2D_ARRAY_EXT: + case GL_PROXY_TEXTURE_2D_ARRAY_EXT: + return (ctx->Extensions.MESA_texture_array || + ctx->Extensions.EXT_texture_array); + case GL_TEXTURE_BUFFER: + /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts, + * but not in earlier versions that expose ARB_texture_buffer_object. + * + * From the ARB_texture_buffer_object spec: + * "(7) Do buffer textures support texture parameters (TexParameter) or + * queries (GetTexParameter, GetTexLevelParameter, GetTexImage)? + * + * RESOLVED: No. [...] Note that the spec edits above don't add + * explicit error language for any of these cases. That is because + * each of the functions enumerate the set of valid + * parameters. Not editing the spec to allow TEXTURE_BUFFER_ARB in + * these cases means that target is not legal, and an INVALID_ENUM + * error should be generated." + * + * From the OpenGL 3.1 spec: + * "target may also be TEXTURE_BUFFER, indicating the texture buffer." + */ + return _mesa_is_desktop_gl(ctx) && ctx->Version >= 31; + default: + return GL_FALSE; + } } -void GLAPIENTRY -_mesa_GetTexLevelParameteriv( GLenum target, GLint level, - GLenum pname, GLint *params ) +static void +get_tex_level_parameter_image(struct gl_context *ctx, + const struct gl_texture_object *texObj, + GLenum target, GLint level, + GLenum pname, GLint *params) { - const struct gl_texture_unit *texUnit; - struct gl_texture_object *texObj; const struct gl_texture_image *img = NULL; - GLint maxLevels; gl_format texFormat; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glGetTexLevelParameteriv(current unit)"); - return; - } - - texUnit = _mesa_get_current_tex_unit(ctx); - - /* this will catch bad target values */ - maxLevels = _mesa_max_texture_levels(ctx, target); - if (maxLevels == 0) { - _mesa_error(ctx, GL_INVALID_ENUM, - "glGetTexLevelParameter[if]v(target=0x%x)", target); - return; - } - - if (level < 0 || level >= maxLevels) { - _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); - return; - } - - texObj = _mesa_select_tex_object(ctx, texUnit, target); img = _mesa_select_tex_image(ctx, texObj, target, level); if (!img || img->TexFormat == MESA_FORMAT_NONE) { @@ -1054,6 +1071,155 @@ invalid_pname: } +static void +get_tex_level_parameter_buffer(struct gl_context *ctx, + const struct gl_texture_object *texObj, + GLenum pname, GLint *params) +{ + const struct gl_buffer_object *bo = texObj->BufferObject; + gl_format texFormat = texObj->_BufferObjectFormat; + GLenum internalFormat = texObj->BufferObjectFormat; + GLenum baseFormat = _mesa_get_format_base_format(texFormat); + + if (!bo) { + /* undefined texture buffer object */ + *params = pname == GL_TEXTURE_COMPONENTS ? 1 : 0; + return; + } + + switch (pname) { + case GL_TEXTURE_BUFFER_DATA_STORE_BINDING: + *params = bo->Name; + break; + case GL_TEXTURE_WIDTH: + *params = bo->Size; + break; + case GL_TEXTURE_HEIGHT: + case GL_TEXTURE_DEPTH: + case GL_TEXTURE_BORDER: + case GL_TEXTURE_SHARED_SIZE: + case GL_TEXTURE_COMPRESSED: + *params = 0; + break; + case GL_TEXTURE_INTERNAL_FORMAT: + *params = internalFormat; + break; + case GL_TEXTURE_RED_SIZE: + case GL_TEXTURE_GREEN_SIZE: + case GL_TEXTURE_BLUE_SIZE: + case GL_TEXTURE_ALPHA_SIZE: + if (_mesa_base_format_has_channel(baseFormat, pname)) + *params = _mesa_get_format_bits(texFormat, pname); + else + *params = 0; + break; + case GL_TEXTURE_INTENSITY_SIZE: + case GL_TEXTURE_LUMINANCE_SIZE: + if (_mesa_base_format_has_channel(baseFormat, pname)) { + *params = _mesa_get_format_bits(texFormat, pname); + if (*params == 0) { + /* intensity or luminance is probably stored as RGB[A] */ + *params = MIN2(_mesa_get_format_bits(texFormat, + GL_TEXTURE_RED_SIZE), + _mesa_get_format_bits(texFormat, + GL_TEXTURE_GREEN_SIZE)); + } + } else { + *params = 0; + } + break; + case GL_TEXTURE_DEPTH_SIZE_ARB: + case GL_TEXTURE_STENCIL_SIZE_EXT: + *params = _mesa_get_format_bits(texFormat, pname); + break; + + /* GL_ARB_texture_compression */ + case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: + /* Always illegal for GL_TEXTURE_BUFFER */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetTexLevelParameter[if]v(pname)"); + break; + + /* GL_ARB_texture_float */ + case GL_TEXTURE_RED_TYPE_ARB: + case GL_TEXTURE_GREEN_TYPE_ARB: + case GL_TEXTURE_BLUE_TYPE_ARB: + case GL_TEXTURE_ALPHA_TYPE_ARB: + case GL_TEXTURE_LUMINANCE_TYPE_ARB: + case GL_TEXTURE_INTENSITY_TYPE_ARB: + case GL_TEXTURE_DEPTH_TYPE_ARB: + if (!ctx->Extensions.ARB_texture_float) + goto invalid_pname; + if (_mesa_base_format_has_channel(baseFormat, pname)) + *params = _mesa_get_format_datatype(texFormat); + else + *params = GL_NONE; + break; + + default: + goto invalid_pname; + } + + /* no error if we get here */ + return; + +invalid_pname: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname=%s)", + _mesa_lookup_enum_by_nr(pname)); +} + + +void GLAPIENTRY +_mesa_GetTexLevelParameterfv( GLenum target, GLint level, + GLenum pname, GLfloat *params ) +{ + GLint iparam; + _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); + *params = (GLfloat) iparam; +} + + +void GLAPIENTRY +_mesa_GetTexLevelParameteriv( GLenum target, GLint level, + GLenum pname, GLint *params ) +{ + const struct gl_texture_unit *texUnit; + struct gl_texture_object *texObj; + GLint maxLevels; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetTexLevelParameteriv(current unit)"); + return; + } + + texUnit = _mesa_get_current_tex_unit(ctx); + + if (!legal_get_tex_level_parameter_target(ctx, target)) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(target=0x%x)", target); + return; + } + + maxLevels = _mesa_max_texture_levels(ctx, target); + assert(maxLevels != 0); + + if (level < 0 || level >= maxLevels) { + _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); + return; + } + + texObj = _mesa_select_tex_object(ctx, texUnit, target); + + if (target == GL_TEXTURE_BUFFER) + get_tex_level_parameter_buffer(ctx, texObj, pname, params); + else + get_tex_level_parameter_image(ctx, texObj, target, level, pname, params); +} + void GLAPIENTRY _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) -- cgit v1.2.3