+void GLAPIENTRY
+_mesa_SubpixelPrecisionBiasNV(GLuint xbits, GLuint ybits)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glSubpixelPrecisionBiasNV(%u, %u)\n", xbits, ybits);
+
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (!ctx->Extensions.NV_conservative_raster) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glSubpixelPrecisionBiasNV not supported");
+ return;
+ }
+
+ if (xbits > ctx->Const.MaxSubpixelPrecisionBiasBits) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSubpixelPrecisionBiasNV");
+ return;
+ }
+
+ if (ybits > ctx->Const.MaxSubpixelPrecisionBiasBits) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSubpixelPrecisionBiasNV");
+ return;
+ }
+
+ subpixel_precision_bias(ctx, xbits, ybits);
+}
+
+static void
+set_viewport_swizzle(struct gl_context *ctx, GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ struct gl_viewport_attrib *viewport = &ctx->ViewportArray[index];
+ if (viewport->SwizzleX == swizzlex &&
+ viewport->SwizzleY == swizzley &&
+ viewport->SwizzleZ == swizzlez &&
+ viewport->SwizzleW == swizzlew)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_VIEWPORT);
+ ctx->NewDriverState |= ctx->DriverFlags.NewViewport;
+
+ viewport->SwizzleX = swizzlex;
+ viewport->SwizzleY = swizzley;
+ viewport->SwizzleZ = swizzlez;
+ viewport->SwizzleW = swizzlew;
+}
+
+void GLAPIENTRY
+_mesa_ViewportSwizzleNV_no_error(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glViewportSwizzleNV(%x, %x, %x, %x)\n",
+ swizzlex, swizzley, swizzlez, swizzlew);
+
+ set_viewport_swizzle(ctx, index, swizzlex, swizzley, swizzlez, swizzlew);
+}
+
+static bool
+verify_viewport_swizzle(GLenum swizzle)
+{
+ return swizzle >= GL_VIEWPORT_SWIZZLE_POSITIVE_X_NV &&
+ swizzle <= GL_VIEWPORT_SWIZZLE_NEGATIVE_W_NV;
+}
+
+void GLAPIENTRY
+_mesa_ViewportSwizzleNV(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glViewportSwizzleNV(%x, %x, %x, %x)\n",
+ swizzlex, swizzley, swizzlez, swizzlew);
+
+ if (!ctx->Extensions.NV_viewport_swizzle) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glViewportSwizzleNV not supported");
+ return;
+ }
+
+ if (index >= ctx->Const.MaxViewports) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glViewportSwizzleNV: index (%d) >= MaxViewports (%d)",
+ index, ctx->Const.MaxViewports);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlex)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlex=%x)", swizzlex);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzley)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzley=%x)", swizzley);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlez)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlez=%x)", swizzlez);
+ return;
+ }
+
+ if (!verify_viewport_swizzle(swizzlew)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "glViewportSwizzleNV(swizzlew=%x)", swizzlew);
+ return;
+ }
+
+ set_viewport_swizzle(ctx, index, swizzlex, swizzley, swizzlez, swizzlew);
+}