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author | marha <marha@users.sourceforge.net> | 2012-08-31 15:18:29 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2012-09-04 14:23:28 +0200 |
commit | d7fc06ac528d54e0e1416cb8aa89b6fd072400a5 (patch) | |
tree | 74cccede044412bba5723a132f1385aa9259f04b /mesalib/src/mesa/main/points.c | |
parent | 9dec848b23cf905ded387820f2893425cc00d545 (diff) | |
download | vcxsrv-d7fc06ac528d54e0e1416cb8aa89b6fd072400a5.tar.gz vcxsrv-d7fc06ac528d54e0e1416cb8aa89b6fd072400a5.tar.bz2 vcxsrv-d7fc06ac528d54e0e1416cb8aa89b6fd072400a5.zip |
randrproto xwininfo fontconfig libxcb mesa xkeyboard-config pixman xserver
git update 31 Aug 2012
Diffstat (limited to 'mesalib/src/mesa/main/points.c')
-rw-r--r-- | mesalib/src/mesa/main/points.c | 131 |
1 files changed, 64 insertions, 67 deletions
diff --git a/mesalib/src/mesa/main/points.c b/mesalib/src/mesa/main/points.c index 87bfae27e..538f3cf44 100644 --- a/mesalib/src/mesa/main/points.c +++ b/mesalib/src/mesa/main/points.c @@ -104,88 +104,74 @@ _mesa_PointParameterfv( GLenum pname, const GLfloat *params) GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); + /* Drivers that support point sprites must also support point parameters. + * If point parameters aren't supported, then this function shouldn't even + * exist. + */ + ASSERT(!(ctx->Extensions.ARB_point_sprite + || ctx->Extensions.NV_point_sprite) + || ctx->Extensions.EXT_point_parameters); + + if (!ctx->Extensions.EXT_point_parameters) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "unsupported function called (unsupported extension)"); + return; + } + switch (pname) { case GL_DISTANCE_ATTENUATION_EXT: - if (ctx->Extensions.EXT_point_parameters) { - if (TEST_EQ_3V(ctx->Point.Params, params)) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - COPY_3V(ctx->Point.Params, params); - ctx->Point._Attenuated = (ctx->Point.Params[0] != 1.0 || - ctx->Point.Params[1] != 0.0 || - ctx->Point.Params[2] != 0.0); - - if (ctx->Point._Attenuated) - ctx->_TriangleCaps |= DD_POINT_ATTEN; - else - ctx->_TriangleCaps &= ~DD_POINT_ATTEN; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glPointParameterf[v]{EXT,ARB}(pname)"); + if (TEST_EQ_3V(ctx->Point.Params, params)) return; - } + FLUSH_VERTICES(ctx, _NEW_POINT); + COPY_3V(ctx->Point.Params, params); + ctx->Point._Attenuated = (ctx->Point.Params[0] != 1.0 || + ctx->Point.Params[1] != 0.0 || + ctx->Point.Params[2] != 0.0); + + if (ctx->Point._Attenuated) + ctx->_TriangleCaps |= DD_POINT_ATTEN; + else + ctx->_TriangleCaps &= ~DD_POINT_ATTEN; break; case GL_POINT_SIZE_MIN_EXT: - if (ctx->Extensions.EXT_point_parameters) { - if (params[0] < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, - "glPointParameterf[v]{EXT,ARB}(param)" ); - return; - } - if (ctx->Point.MinSize == params[0]) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.MinSize = params[0]; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glPointParameterf[v]{EXT,ARB}(pname)"); + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); return; } + if (ctx->Point.MinSize == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.MinSize = params[0]; break; case GL_POINT_SIZE_MAX_EXT: - if (ctx->Extensions.EXT_point_parameters) { - if (params[0] < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, - "glPointParameterf[v]{EXT,ARB}(param)" ); - return; - } - if (ctx->Point.MaxSize == params[0]) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.MaxSize = params[0]; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glPointParameterf[v]{EXT,ARB}(pname)"); + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); return; } + if (ctx->Point.MaxSize == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.MaxSize = params[0]; break; case GL_POINT_FADE_THRESHOLD_SIZE_EXT: - if (ctx->Extensions.EXT_point_parameters) { - if (params[0] < 0.0F) { - _mesa_error( ctx, GL_INVALID_VALUE, - "glPointParameterf[v]{EXT,ARB}(param)" ); - return; - } - if (ctx->Point.Threshold == params[0]) - return; - FLUSH_VERTICES(ctx, _NEW_POINT); - ctx->Point.Threshold = params[0]; - } - else { - _mesa_error(ctx, GL_INVALID_ENUM, - "glPointParameterf[v]{EXT,ARB}(pname)"); + if (params[0] < 0.0F) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glPointParameterf[v]{EXT,ARB}(param)" ); return; } + if (ctx->Point.Threshold == params[0]) + return; + FLUSH_VERTICES(ctx, _NEW_POINT); + ctx->Point.Threshold = params[0]; break; case GL_POINT_SPRITE_R_MODE_NV: /* This is one area where ARB_point_sprite and NV_point_sprite * differ. In ARB_point_sprite the POINT_SPRITE_R_MODE is * always ZERO. NV_point_sprite adds the S and R modes. */ - if (ctx->Extensions.NV_point_sprite) { + if (_mesa_is_desktop_gl(ctx) && ctx->Extensions.NV_point_sprite) { GLenum value = (GLenum) params[0]; if (value != GL_ZERO && value != GL_S && value != GL_R) { _mesa_error(ctx, GL_INVALID_VALUE, @@ -204,12 +190,11 @@ _mesa_PointParameterfv( GLenum pname, const GLfloat *params) } break; case GL_POINT_SPRITE_COORD_ORIGIN: - /* This is not completely correct. GL_POINT_SPRITE_COORD_ORIGIN was - * added to point sprites when the extension was merged into OpenGL - * 2.0. It is expected that an implementation supporting OpenGL 1.4 - * and GL_ARB_point_sprite will generate an error here. + /* GL_POINT_SPRITE_COORD_ORIGIN was added to point sprites when the + * extension was merged into OpenGL 2.0. */ - if (ctx->Extensions.ARB_point_sprite) { + if ((ctx->API == API_OPENGL && ctx->Version >= 20) + || ctx->API == API_OPENGL_CORE) { GLenum value = (GLenum) params[0]; if (value != GL_LOWER_LEFT && value != GL_UPPER_LEFT) { _mesa_error(ctx, GL_INVALID_VALUE, @@ -263,7 +248,19 @@ _mesa_init_point(struct gl_context *ctx) ctx->Point.MaxSize = MAX2(ctx->Const.MaxPointSize, ctx->Const.MaxPointSizeAA); ctx->Point.Threshold = 1.0; - ctx->Point.PointSprite = GL_FALSE; /* GL_ARB/NV_point_sprite */ + + /* Page 403 (page 423 of the PDF) of the OpenGL 3.0 spec says: + * + * "Non-sprite points (section 3.4) - Enable/Disable targets + * POINT_SMOOTH and POINT_SPRITE, and all associated state. Point + * rasterization is always performed as though POINT_SPRITE were + * enabled." + * + * In a core context, the state will default to true, and the setters and + * getters are disabled. + */ + ctx->Point.PointSprite = (ctx->API == API_OPENGL_CORE); + ctx->Point.SpriteRMode = GL_ZERO; /* GL_NV_point_sprite (only!) */ ctx->Point.SpriteOrigin = GL_UPPER_LEFT; /* GL_ARB_point_sprite */ for (i = 0; i < Elements(ctx->Point.CoordReplace); i++) { |