diff options
| -rw-r--r-- | src/mesa/main/api_validate.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c index 8a2ec7b293a..243bb89d15e 100644 --- a/src/mesa/main/api_validate.c +++ b/src/mesa/main/api_validate.c @@ -245,6 +245,74 @@ _mesa_valid_prim_mode(struct gl_context *ctx, GLenum mode, const char *name) return GL_FALSE; } + /* From the ARB_geometry_shader4 spec: + * + * The error INVALID_OPERATION is generated if Begin, or any command that + * implicitly calls Begin, is called when a geometry shader is active and: + * + * * the input primitive type of the current geometry shader is + * POINTS and <mode> is not POINTS, + * + * * the input primitive type of the current geometry shader is + * LINES and <mode> is not LINES, LINE_STRIP, or LINE_LOOP, + * + * * the input primitive type of the current geometry shader is + * TRIANGLES and <mode> is not TRIANGLES, TRIANGLE_STRIP or + * TRIANGLE_FAN, + * + * * the input primitive type of the current geometry shader is + * LINES_ADJACENCY_ARB and <mode> is not LINES_ADJACENCY_ARB or + * LINE_STRIP_ADJACENCY_ARB, or + * + * * the input primitive type of the current geometry shader is + * TRIANGLES_ADJACENCY_ARB and <mode> is not + * TRIANGLES_ADJACENCY_ARB or TRIANGLE_STRIP_ADJACENCY_ARB. + * + */ + if (ctx->Shader.CurrentGeometryProgram) { + const GLenum geom_mode = + ctx->Shader.CurrentGeometryProgram->Geom.InputType; + switch (mode) { + case GL_POINTS: + valid_enum = (geom_mode == GL_POINTS); + break; + case GL_LINES: + case GL_LINE_LOOP: + case GL_LINE_STRIP: + valid_enum = (geom_mode == GL_LINES); + break; + case GL_TRIANGLES: + case GL_TRIANGLE_STRIP: + case GL_TRIANGLE_FAN: + valid_enum = (geom_mode == GL_TRIANGLES); + break; + case GL_QUADS: + case GL_QUAD_STRIP: + case GL_POLYGON: + valid_enum = false; + break; + case GL_LINES_ADJACENCY: + case GL_LINE_STRIP_ADJACENCY: + valid_enum = (geom_mode == GL_LINES_ADJACENCY); + break; + case GL_TRIANGLES_ADJACENCY: + case GL_TRIANGLE_STRIP_ADJACENCY: + valid_enum = (geom_mode == GL_TRIANGLES_ADJACENCY); + break; + default: + valid_enum = false; + break; + } + if (!valid_enum) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(mode=%s vs geometry shader input %s)", + name, + _mesa_lookup_prim_by_nr(mode), + _mesa_lookup_prim_by_nr(geom_mode)); + return GL_FALSE; + } + } + /* From the GL_EXT_transform_feedback spec: * * "The error INVALID_OPERATION is generated if Begin, or any command |